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HomeMy WebLinkAbout05212024 Planning & Zoning Work Session Packet Work Session Tuesday, May 21, 2024 Council Chambers, City Hall 6:00 p.m. Planning & Zoning Commission Work Session Packet The City of Seward, Alaska SEWARD PLANNING AND ZONING COMMISSION WORK SESSION AGENDA May 21, 2024 6:00 p.m. Council Chambers Carol Griswold Chair Term February, 2027 Brenan Hornseth Vice Chair Term February, 2025 Nathaniel Charbonneau Commissioner Term February, 2027 Vanessa Verhey Commissioner Term February, 2026 Sean Ulman Commissioner Term February, 2025 Rhonda Hubbard Commissioner Term February, 2025 Vacant Commissioner Term February, 2026 Daniel Meuninck Community Development Director Courtney Bringhurst City Planner Clara Brown Executive Planning Assistant Kris Peck City Clerk 1)CALL TO ORDER 2)STAFF COMMENTS 3)DISCUSSION ITEMS a.Hazard Mitigation Plan ...............................................................5 b. P&Z Rules and Procedures………………………………….…….64 c. Scheffler Creek / Flood Mitigation………………….……………..31 d.Generator use for Transient Merchants…………………………105 4)ADJOURNMENT 2 OUTCOME GOALS FOR WORK SESSION 1)Presentation and discussion of the Hazard Mitigation Plan for the entire Kenai Peninsula Borough which will now encompass the Seward Hazard Mitigation Plan. (30-60 minutes) 2)Presentation and discussion of the Scheffler Creek flood mitigation assessment with Nick Chapman, Service Area Program Manager for the Seward-Bear Creek Flood Service Area. (30-60 minutes) 3)Status update on the P&Z Rules and Procedures document by staff and feedback on formatting provided by the Commission. (15 minutes) 4)Discussion on transient merchants and if the use of generators should be allowed. Direction on new code language or a request that the code remains the same. (30 minutes) BACKGROUND: Hazard Mitigation Plan In the past, there have been three (3) Hazard Mitigation Plans associated with Seward, the City of Seward Hazard Mitigation Plan, the Seward Bear Creek Flood Service Area Hazard Mitigation Plan, and the Kenai Peninsula Borough Hazard Mitigation Plan. Currently, the Borough is working on combining all these plans into one comprehensive Hazard Mitigation Plan. This update will help the city of Seward to continue to receive funding from FEMA and other entities to combat hazard risks. Scheffler Creek In February of 2024, AWR Engineering submitted a report regarding “Flood Mitigation Alternatives on Scheffler Creek” to Nicholas Chapman, the Seward- Bear Creek Flood Service Area, Program Manager. This study contains various options of mitigation strategies that can be implemented to prevent flooding from Scheffler Creek into the surrounding neighborhoods. Nick Chapman will be discussing the various options and what the next steps are moving forward. 3 P&Z Rules and Procedures This document was created and adopted by City Council in 2008 to help guide the Planning and Zoning Commission on aspects of powers and duties, meeting procedures, and rules of conduct. It was last updated in 2014. Many of the references to city code within the document are no longer accurate. Community Development Director, Daniel Meuninck, is reviewing the entire document to update the referenced code and adjust the formatting to a more intuitive layout. Transient Merchants Transient merchants are essentially a temporary business operating from private property, selling, and delivering goods and/or services from a motor vehicle, trailer, or tent. A mobile vendor is the same type of business but varies in that they are required to operate from City-approved locations. In Seward city code 15.10.226(E)(8) transient merchants are prohibited from using generators. However, mobile vendors have no such prohibition. The Commission will discuss if certain allowances should be made for transient merchants to use generators. The use of generators by transient merchants during special such as the Mermaid Festival and the Fourth of July will also be discussed. 4 Hazard Mitigation Plan 5 Kenai Peninsula Borough Hazard Mitigation Plan 2024 Seward Planning Meeting May 21, 2024 Update of 2019 KPB Hazard Mitigation Plan (HMP) Planning Support provided by Kuna Engineering 6 1 Plan Update Overview 2 Plan Update Process 3 Work Session Meeting Agenda 4 Local Participation 7 What is new with the Hazard Mitigation Plan in 2024? •Kenai Peninsula Borough (KPB) is adding the City of Seward, Seward Bear Creek Flood Service Area (SBFSA), and City of Seldovia to the Plan Update. •The Borough will develop a full multi-jurisdictional plan during the next update cycle to include the remaining incorporated cities: Homer, Kenai, Soldotna, and Kachemak. •Updated requirements from DHS&EM and FEMA. 1. PLAN UPDATE OVERVIEW 8 Why we maintain the Hazard Mitigation Plan •Opportunity for plan integration and stakeholder/interagency coordination •Part of eligibility for FEMA mitigation grants •Increased focus on what actions will move towards long- term resilience to hazard risk •Required to be updated every five years as part of planning and grant funding cycle HMP Resilience PoliciesProcedures Funding Plans 9 Hazards Identified in KPB: •Flooding and Erosion •Wildfires (covered in CWPP) •Earthquakes •Severe Weather •Tsunamis/Seiches •Volcanoes •Avalanches & Landslides •Human-Caused Hazards •Cryosphere Change reviewed for each hazard 10 HMP Update/Maintenance Schedule •Plan Update will be completed by the December 18, 2024, expiration date. The City of Seldovia HMP has expired and this update will provide coverage until next update is required. The City of Seward HMP will be included in this update. •The KPB Local Emergency Planning Committee (LEPC) reviews plan development and conducts an annual review to monitor plan actions between updates. •Once updated Plan is finalized, KPB will seek to identify funding sources and seek funding for prioritized mitigation projects 2. PLAN UPDATE PROCESS 11 Online KPB HMP Update Resources •Used to provide the public with information on the HMP update process. •Updated as needed and with plan draft. •Provides feedback opportunity when the draft plan is available. •Used to show hazard risk in the KPB and areas most in need of mitigation actions. •KPB HMP Update Hub: https://hazard-mitigation-plan-kpb.hub.arcgis.com/ •Story Map: KPB Hazard Mitigation Plan -2024 (arcgis.com) •HMP Questionnaire: Kenai Peninsula Borough HMP Update -Public Survey -2024 (arcgis.com) 12 The importance of participationin the process •Incorporate local community input into the HMP development to ensure it accurately reflects their needs and insights. •Helps to develop projects that can reduce risk from hazards. •Having the Seward and Seldovia City plans included in the Borough plan increases their access to Borough resources and increases city efficiency while reducing their burden when updates are due. 3. LOCAL PARTICIPATION Work Sessions In-person Meetings Zoom Meetings Presentation recordings Emailed input Questionnaire /Survey Social Media posts Community Input 13 Meeting Participation •Purpose: Harness local knowledge and provide new goals or projects. •Participation Methods Now: •Review previous goals and actions and update their status. •Draw on maps to show areas of concern or action. •Talk to team members. •Complete a questionnaire. •Participation Methods Later: •Online comment/questionnaire •Contact project team 4. WORK SESSION Contact Us: Mary Toll, OEM Project Manager Phone: 907-714-2686, Email: MToll@kpb.us Project Consultant Kuna Engineering Phone: 907-339-6500 Email: jrolfzen@kunaeng.com 14 Action ID # Action Description Location Area Hazard HMP Mitigation Goal (Ongoing, New) Planning Notes Complete a Borough-wide flood and coastal erosion assessment KPB Areawide Flooding and Coastal Erosion, landslides New Develop or obtain modeling tool to predict bluff and coastal erosion (similar to USGS CoSMoS) KPB Coastal communities Erosion, Flooding, Landslide, Tsunami, Earthquake Ongoing Encourage DGGS to include Cook Inlet in their coastline erosion studies KPB Areawide Erosion, Flooding, Landslide, Tsunami, Earthquake New Improve KPB hazard mapping and identify other effective tools or methods to assist with hazard assessment KPB Areawide All Hazards Ongoing Map actual boundaries or specific locations affected by hazard event KPB Areawide All Hazards New Protect Borough employees with continued and expanded hazard training and facility upgrades KPB Areawide All Hazards New Identify and mitigate possible levee or dam failures, in SBCFSA and the rest of the Borough. Harden and/or retrofit existing levees per USACE guidelines. KPB Areawide, City of Seldovia, City of Seward, SBCFSA Flooding, Erosion, Landslide, Earthquake Ongoing Identify vulnerabilities in emergency transportation not on the road system. (as an example Jakolof Road) City of Seldovia, Tyonek, Port Graham, Nanwalek, Bear Cove, Halibut Cove, and other areas off the road system in the KPB. All Hazards Ongoing Continue to manage sediment control at the Lowell Creek outfall sediment and erosion control program. City of Seward, SBCFSA Flooding , coastal erosion, Ongoing Maintain or redesign riprap barriers along Lowell Point Road.City of Seward, SBCFSA Flooding , coastal erosion, Ongoing Dredging operations to remove debris and fill at the head of Resurrection Bay near the airport. City of Seward, SBCFSA Flooding , coastal erosion, Ongoing Harden culvert entrance bottoms with concrete, rock, or similar material to reduce erosion or scour. City of Seward, SBCFSA Flooding , coastal erosion, Ongoing Pursue federal and state funding to improve and update Flood Insurance Rate Maps (FIRMs), as well as other maps and plans that may be more appropriate, such as Drainage Plans, Sediment Management Plans, or Watershed Management Plans in order to meet other goals. KPB Areawide, City of Seldovia, City of Seward, SBCFSA Flooding , coastal erosion, Ongoing Obtain an exemption to the Alaska Department of Natural Resources (DNR) Material Sales Fees on navigable rivers and streams and state lands for sediment and debris management, stream channel maintenance, and flood control or other mitigation projects. KPB Areawide, City of Seldovia, City of Seward, SBCFSA Flooding , coastal erosion, Ongoing Identify and expand on hazards that affect the Borough 1 15 Adopt and implement development standards and permit requirements in hazard areas KPB Areawide All Hazards Ongoing Audit and improve development permit databases for content and compliance; create new databases as needed KPB Areawide Flooding, Erosion, Wildfire, Avalanche, Landslide Ongoing Work with the State and NWS to enhance weather monitoring and warning systems KPB Areawide Severe Weather Ongoing Revise KPB 17.10 Borough Lands and Resources to enable or require tax foreclosure properties located in hazard zones to be classified as Preservation after foreclosure KPB Areawide All Hazards Ongoing Review and appropriately revise KPB development standards and requirements, including floodplain standards for permitting and construction, subdivision standards, road construction permitting and standards KPB Areawide Flooding, Erosion, Earthquake, Wildfires, Avalanche, Tsunami, Severe Weather Ongoing Develop and implement a floodplain ordinance within City Code in compliance with the NFIP. City of Seldovia Flooding Ongoing Evaluate and upgrade Borough maintained roads for potential effects from hazards and mitigation potential; use as basis for CIP prioritization KPB Areawide All Hazards New Construct a road to connect Nanwalek and Port Graham; work with both communities to facilitate a cooperative situation to maximize community use of facilities and evacuation route as needed during an event Nanwalek, Port Graham All Hazards New Survey Borough shorelines to project rates of erosion and identify littoral zones KPB Areawide Flooding, Erosion, Tsunami Ongoing Identify at-risk and under-served populations: KPB Areawide, City of Seldovia All Hazards Ongoing Build or maintain a database of voluntary registration for special needs and under-served populations, similar to Rapid Notify registration system. KPB Areawide All Hazards Ongoing Identify and map all congregate structures and institutions with special needs populations, such as assisted living facilities, day care facilities, rehab facilities, senior housing, correctional facilities, halfway houses; some of this information may not be - Identify and map all congregate structures and institutions with special needs populations, such as assisted living facilities, day care facilities, rehab facilities, senior housing, correctional facilities, halfway houses; some of this information may not be suitable for public access KPB Areawide, City of Seldovia All Hazards Ongoing Identify areas of seasonal populations, such as campgrounds, RV parks, fish processing plants, dipnet areas and make a plan for their notification of an applicable hazard event KPB Areawide, City of Seldovia All Hazards New Identify and protect public and private resource facilities such as water sources, wastewater treatment plants, cell towers and power substations KPB Areawide, City of Seldovia All Hazards New Identify, improve and maintain roads that provide public access to beaches; these accesses may be needed for evacuation following a hazard event or emergency and may need to accommodate large numbers of evacuees based on the time of year KPB Areawide, City of Seldovia All Hazards New Identify populations in remote or non road-accessible areas, and provide for their inclusion in hazard education and response KPB Areawide All Hazards New Work with residents, industry and government agencies to develop and disseminate information about areas in danger from levee or dam failure KPB Areawide Flooding Ongoing Promote public awareness of potential hazards associated with transporting and handling toxic and hazardous substances in the community KPB Areawide Human Caused Hazard Ongoing Support ADEC’s funded creation of a hazardous waste program under the Resource Conservation and Recovery Act KPB Areawide Human Caused Hazard New Protect the Borough population by mitigating or lessening hazard effects 2 16 Identify potentially harmful substances used or disposed of within the Borough that are inadequately regulated by government agencies to serve as a basis for future planning, monitoring, response or enforcement activity. KPB Areawide Human Caused Hazard Ongoing Support the efforts of SBCFSA, City of Seward and the USACE to resolve the Lowell Creek Diversion Tunnel issues. City of Seward, SBCFSA Flooding, Landslide Ongoing Minimize workplace violence by installing secured and controlled entries to Borough and school district buildings KPB Areawide Human-Caused Hazard Ongoing Adopt threat response procedures and educate all Borough employees KPB Areawide Human-Caused Hazard Ongoing Verify that all critical function structures have alternate power sources during power outages and that portable power sources are available in the event critical response resources need to be moved during or after an event. KPB Areawide, City of Seldovia All Hazards New Verify that available fuel supplies are adequate for alternate power sources during power outages at all critical function structures; if needed, upgrade fuel tanks and storage facilities to enable storage of sufficient fuel amounts KPB Areawide All Hazards New Research mitigation options for electric vehicles during power outages; educate public on charging locations. KPB Areawide, City of Seldovia All Hazards New Verify that all Emergency Operations Plans (EOP) are updated with current information KPB Areawide, City of Seldovia All Hazards New Verify that potable water can be made available to responders and residents during an event, even if bottled water availability is limited. This may require an inventory of private, high-volume wells that have been tested, such as seafood processors, ice producers, restaurants senior centers etc KPB Areawide, City of Seldovia All Hazards New Conduct joint site visits with key permitting agencies to evaluate repetitively damaged roads and formulate plans for flood mitigation upgrades. KPB Areawide Flooding New Work with interested agencies to identify degraded floodplains and investigate the potential for restoring or improving water passage, removing repetitively damaged structures and/or acquiring land to restore or preserve floodplain function KPB Areawide Flooding Ongoing Create manuals for critical facilities to document AM and PM requirements; manuals to include lists of vulnerabilities that need mitigation KPB Areawide All Hazards New Augment KPB communications and facility support to enhance interoperable communications specifically as to how they impact response and post disaster initiation KPB Areawide, City of Seldovia All Hazards New Minimize damage to residential structures in the unincorporated areas of the KPB with code changes that require additional information or studies for structures to be built in mapped or known hazard areas KPB Areawide All Hazards New Support efforts by local businesses and institutions to build and maintain databases identifying businesses that are located in mapped hazard areas, such as oil and gas facilities, hospitals, extended care facilities, senior housing and correctional facilities KPB Areawide All Hazards New Provide information and support for continuity (COOP) plans for KPB departments and subject matter experts. KPB Areawide All Hazards New Complete or update Small Community Emergency Response Plans (SCERPs) in collaboration with DHS&EM for those unincorporated communities that qualify for this program. KPB Areawide All Hazards New Establish a retaining structure in Lowell Canyon to prevent avalanches from disrupting city water storage system. City of Seward, SBCFSA Landslides, avalanches Ongoing 17 Assemble prioritized lists of Borough-owned structures and City of Seward facilities to identify changes, non-structural measures, evaluations of facilities, and upgrades or retrofits needed to meet current hazard standards and State Building Code. Examples include emergency response facilities, hospitals, schools, other Borough-owned structures KPB Areawide, City of Seldovia, City of Seward Earthquakes, Flooding, Severe Weather, Erosion, Wildfires, Human Caused Hazard Ongoing Prepare a funding plan and estimate for needed structural upgrades KPB Areawide All Hazards Ongoing Perform a Peninsula-wide assessment of communication systems vulnerabilities KPB Areawide All Hazards Ongoing Work with utility companies to encourage or require underground installation in new or upgraded development; this may require changes to KPB Codes, grant funding, reduced rates, tax incentives, etc. KPB Areawide Flooding, Severe Weather, Avalanches, Earthquake, Human Caused Hazards Ongoing Purchase and install generator for AVTEC with main power distribution disconnect switch.City of Seward, SBCFSA All Hazards Ongoing Support community efforts to increase initial independent preparation and response, such as volunteer fire and emergency departments, community gardens, and community centers KPB Areawide, City of Seldovia All Hazards Ongoing Encourage residents to have a minimum 7-day emergency supply kit and a plan to address hazard impacts such as injuries, suspension or delay of emergency services, power outages, road blockages, loss of heat, frozen pipes, fallen trees, store closures, etc. KPB Areawide, City of Seldovia All Hazards Ongoing Encourage residents to stock emergency supplies and provide care for animals and pets in an event KPB Areawide, City of Seldovia All Hazards New Pursue commercial participation with promotions on hazard kit supplies from local vendors (can happen during a Hazard Mitigation and Preparation month as an example) KPB Areawide All Hazards Ongoing Work with tourism agencies to provide hazard preparation and response information to seasonal populations. KPB Areawide, City of Seldovia All Hazards Ongoing Work with utility and fuel companies to educate customers on appropriate pre- and post- event actions and precautions KPB Areawide All Hazards Ongoing Encourage public and Borough participation during comment periods for infrastructure funding, construction or facility upgrades. KPB Areawide All Hazards New With cooperation from owners, identify successful private flood-proofing projects to foster a positive view of mitigation and preparation KPB Areawide Flooding Ongoing Promote Hazard Mitigation education to the public schools with a Hazard Education and Mitigation month . KPB Areawide All Hazards Ongoing Identify businesses and institutions in high-risk areas in the Borough and verify they have plans in place for hazard response KPB Areawide, City of Seldovia All Hazards Ongoing Identify and encourage the reduction of non-structural and structural earthquake hazards in homes, rentals, businesses and government offices KPB Areawide Earthquakes New Add hazard maps to GIS public map options KPB Areawide All Hazards New Support or provide avalanche awareness classes for outdoor recreationalists; work with KPBSD to provide class credits to students KPB Areawide Avalanche Ongoing Work with vendors to provide incentives to purchase safety equipment KPB Areawide All Hazards Ongoing Inform the public of resources to consult prior to activities, such as 511, Chugach National Forest Avalanche information, NWS, etc., publicizing those resources on a KPB website. KPB Areawide Avalanches, weather, fire, earthquake, tsunami New Work with fuel suppliers to monitor fuel tank conditions and provide information to the public on safe fuel storage options KPB Areawide All Hazards Ongoing Educate homeowners on potentially hazardous materials commonly found in homes or provide sources of such information KPB Areawide Human-Caused Hazard Ongoing Identify and prioritize evaluations, upgrades and retrofit measures for KPB critical facilities and infrastructure that are hazard vulnerable 3 Educate the Borough population on hazard awareness, personal responsibility, preparation and response. 4 18 Provide 'Best Practices' information to homeowners, realtors and contractors KPB Areawide All Hazards Ongoing Create electrical infrastructure redundancies to reduce the risk of prolonged power outages by completing the following projects. Complete the underground electrical loop on Lowell Pt. from Beach Drive to Lowell Pt. Rd., and the loop from Shady Ln. to Beach Drive. Develop distribution lines in avalanche areas, example is Seward Hwy. Mile 22. . KPB Areawide, City of Seward, SBCFSA Avalanches, landslides Ongoing Encourage cleanup sites to meet standards and/or regulations for all reportable hazard materials quantity. KPB Areawide, City of Seward, SBCFSA Human-Caused Hazard Ongoing Consistently provide KPB comments on proposed capital improvements for State-owned resources KPB Areawide All Hazards New Identify, map and evaluate all State-owned and private airstrips KPB Areawide All Hazards Ongoing Update and maintain KPB Emergency Operation Plan with reference in Hazard Mitigation Plan KPB Areawide All Hazards Ongoing Require department heads or managers to update and maintain COOP plans for all KPB Departments KPB Areawide All Hazards New Require department heads or managers to be familiar with and trained in FEMA’s Incident Command System (ICS) for disaster response KPB Areawide All Hazards New Fund a dedicated GIS position in OEM to enhance hazard research, response and mapping utilized by OEM and various emergency services KPB Areawide All Hazards New Update and upgrade Borough communications partnerships KPB Areawide All Hazards New Identify and map (or update mapping) high hazard areas in GIS, including critical infrastructure located in those areas KPB Areawide All Hazards New Evaluate evacuation routes for ability to handle possible numbers of evacuees, suitability for seasons, alternate routes, likelihood of road damage, quality of construction, etc. KPB Areawide, City of Seldovia All Hazards New Construct vertical evacuation towers in appropriate locations if found to be a feasible alternative to traditional evacuation methods in areas at risk to Tsunami damage KPB Areawide Tsunami New Encourage local governments and the State to work together on projects that mitigate or minimize hazard effects, with coordinated priorities, funding, and/or work efforts where possible to increase efficiencies and reduce costs. KPB Areawide, City of Seldovia All Hazards Ongoing Alternate evacuation route in City of Seward.City of Seward All Hazards Ongoing Mitigation measures at Waterfront Park in Seward. Maintain the rock barrier in Waterfront Park area. City of Seward All Hazards Ongoing Provide informational signage in areas subject to specific hazards such as avalanches or in areas of public access or use for information purposes KPB Areawide All Hazards Ongoing Provide hazard potential information and mitigation ideas to developers KPB Areawide All Hazards New Encourage the state and KPB to include pedestrian and non-motorized travel ways on bridge upgrades or replacements KPB Areawide All Hazards Ongoing Provide consistent infrastructure inspection and maintenance KPB Areawide All Hazards Ongoing Create, update, implement and exercise COOP plans to mitigate effects of hazards to Borough operations and departments KPB Areawide All Hazards Ongoing Verify that procedures exist for local provision of response operations during an event, in the event that State, federal or other sources of help are not available KPB Areawide All Hazards Ongoing Continue to refine and expand as needed, after-action information reporting/submittal procedures and training with targeted outreach to those affected or involved in response KPB Areawide All Hazards New Take advantage of public interest immediately following an event by expanded public awareness and education programs KPB Areawide All Hazards New Use each hazard event as an educational opportunity 8 Prioritize and implement projects to reduce risk and increase resilience 7 Identify, enhance and utilize existing resources 5 Identify hazards applicable to critical infrastructure and mitigation ideas 6 19 Continue and expand KPB information provided to public via website, social media, phone bank, etc. before, during and after events KPB Areawide, City of Seldovia All Hazards New Provide information about potential effects of severe weather and provide mitigation ideas – power outages, road disruptions, roof collapses, health risks of shoveling snow, etc. KPB Areawide, City of Seldovia Severe Weather New 20 MEETING NOTES & TRIP REPORT - 1 - SBCFSA Meeting – April 15, 2024 Seward-Bear Creek Flood Service Area Work Session: HMP Update Kuna Engineering (Kuna) was hired by Kenai Peninsula Borough (KPB) to provide planning assistance for the Borough’s Hazard Mitigation Plan Update. Suzanne Taylor, Senior Planner, traveled to Seward to attend a work session of the Seward-Bear Creek Flood Service Area (SBCFSA) focused on the HMP Update. AFTERNOON: Suzanne arrived at the SBCFSA at 2:50 for a 3 o’clock team meeting. Present were: o Brenda Ahlberg, KPB Emergency Services Director o Mary Toll, PM for KPB over the HMP Update o Nicholas (Nick) Chapman, SBCFSA Service Area Program Manager o Heather Cinerski, SBCFSA Service Area Administrative Assistant o Suzanne Taylor, Kuna Engineering After introductions, Nick shared his suggested mitigation actions for the plan update (Photo 1: Overview). They included: 1. Revetment on east side of Box Canyon Creek (Photo 2) 2. Armoring/revetment at Bruno Road (Photo 3) 3. Replacement of bridge at Lost Creek; replacement and relocation of bridge on Que Sera Drive to a more northerly location (Photo 3). Moving the location of the second bridge will provide for more clearance and better access to the subdivision. 4. Revetment, mitigation, and box culvert along Scheffler Creek (Photo 4) Nick pointed out that there is a property owned by UAF that would be great to acquire to facilitate drainage mitigation. There was discussion of buying or potentially doing a land trade for the location. The Railroad received a Hazard Mitigation Grant for Salmon Creek. We discussed the importance of the Story Map as a public outreach tool. Suzanne said that Matt Narus was working on the issue and would be in touch. Brenda, Mary, and Suzanne shared an early dinner at the Highliner. EVENING: At 6 pm, the SBCFSA Board met for a work session on the HMP Update (see attached sign-in sheet for attendees). After introductions by Nick Chapman, Suzanne gave a PowerPoint presentation explaining the purpose of the HMP and the benefits of being a part of the larger borough plan rather than just a local plan. These include more resources for determining funding availability, grant applications, and plan updates. Additionally, the combined plan allows the areas to better cooperate on certain projects where that makes sense. Date: April 15, 2024 Project Number: 165.030696 To: Brenda Ahlberg, PM From: Suzanne Taylor, Kuna Engineering 21 MEETING NOTES & TRIP REPORT - 2 - SBCFSA Meeting – April 15, 2024 After the presentation, Suzanne turned the floor over to Mary for a review of the goals from the 2010/2013 HMP about which she had questions. Fire Chief Crites from the City of Seward had prepared responses to some of the items, which he shared with Mary. His responses as well as the input from the Board follow. Additionally, Tom Miller, a resident of Lowell Point, provided information on the need for alternative access to that community. I have also added additional information from Jason Bickling, Seward Deputy City Manager, received April 17, just to have it all combined in one place. GOALS REVIEW AND NOTES MH3.3 2010 HMP Brought Forward: Purchase and install generator for AVTEC with main power distribution disconnect switch. Status: Completed? • Chief Crites: These is a generator at the First Lake Facility. Not sure if this completes this or if they wanted another generator somewhere else. MH3.7 2010: Alternate evacuation route in City. Status: Ongoing (Mary) • Daniel Meuninck, Community Development Director: The combination of the Two-Lakes Trail System, City roads west of the lagoon, and permission from Steve Leirer to utilize private property in the event of an emergency provides a secondary evacuation route that bypasses the Seward lagoon and boat harbor areas. • Jason Bickling, Deputy City Manager, Seward: I don’t have anything further than what Danny wrote. The route is there (not maintained) but we can get traffic / people through if need be. MH3.8 2010: Mitigation measures at Waterfront Park. Status: Ongoing • SBCFSA: In September 2016, KPB provided the City $50,000 for rock revetment. Previously listed actions were completed but must be maintained as an ongoing action. • Jason: re. “Are there any talks of further rock barriers and obviously we aren’t planting more rye grass and keeping campfires off this area.” There are not any talks at this time. There have been some discussions of a future beach restoration project. MH3.9 2010 Retrofit of critical infrastructure to State Building code. Status: Ongoing • Chief Crites/ SBCFSA: Since this is most City Buildings, it’s not completed, but progress has been made. MH3.10 2010 Identify non-buildable sites in City Land Use Plan and Zoning Map. Status: Completed • Daniel: The City owns several pieces of land that are zoned Resource Management. According to Seward City Code, "Resource management district (RM) are lands which are generally undeveloped and cannot be precisely zoned due to inadequate information on the extension of public services and utilities; the suitability of the land to support commercial, residential, industrial or public uses; and other possible environmental consideration." The Municipal Lands Inventory and Management Plan goes into detail on each of the Resource Management parcels including their recommended future use based on current feasibility of development. MH3.11 2010 HMP Brought Forward: Conduct a structural assessment of the Fourth of July Creek dike. Status: Completed • SBCFSA: The dike was assessed as in good condition; however, ongoing maintenance to remove alders is required. 22 MEETING NOTES & TRIP REPORT - 3 - SBCFSA Meeting – April 15, 2024 MH3.12 2010 HMP Flood Education Brought Forward: Obtain ongoing permits for the Lowell Creek outfall sediment and erosion control program. Status: Ongoing • SBCFSA: Suggested change from obtaining permits to continue to manage sediment control at the Lowell Creek outfall. • There was a discussion of which permits are required and if the sediment could be put to the Waterfront project. DNR permit is not required for Lowell Creek as it is non-navigable, but a USACE 205 permit could be. • Jason: Yes, we issue ourselves a floodplain permit (Courtney). We used to do this annually but then changed our code so we have an ongoing permit to do sediment removal at that site. MH3.13 2010 HMP Coastal Education Brought Forward: Maintain the rock barrier in Waterfront Park area. Status: Ongoing • SBCFSA: Suggested combining with MH3.8. MH3.14 2010 HMP Coastal Education Brought Forward: Maintain or redesign riprap barriers along Lowell Point Road. Status: Ongoing • SBCFSA: Being performed by Hamilton Construction. MH3.15 2010 HMP Coastal Education Brought Forward: Dredging operations to remove debris and fill at the head of Resurrection Bay near the airport. Status: Ongoing • Research to establish jurisdiction for this action, City or FSA. • Jason: I believe the railroad is the one who dredges the port area for Cruise Ships, etc. We dredge our harbors. I’m not aware of any other dredging that has taken place. I could see there being some dredging done on the airport project (DOT) and they may have done some along the runway at one time. MH3.16 2010 HMP Coastal Education Brought Forward: Cover electric line with concrete. Status: Discard • SBCFSA: Project not feasible. • Jason: That makes sense (to delete this action) EQ4.1 2010: Evaluate critical public facilities with significant seismic vulnerabilities and complete retrofit. EQ4.2 2013: Non-structural measures. EQ4.3 2010: Earthquake proof priority structures Status: Ongoing • SBCFSA: Suggest combining EQ4.1, EQ4.2, and EQ4.3 together with MH3.9. FL5.1 2013 SBCFSA: Develop mitigation initiatives for erosion protection. Status: Discard • Language is too vague. FL5.2 2013 SBCFSA: Harden culvert entrance bottoms with concrete, rock, or similar material to reduce erosion or scour. Status: Ongoing FL5.3 2013 SBCFSA: Harden and/or retrofit existing levees per USACE guidelines. Status: Ongoing FL5.4 2013 SBCFSA: Goal crossed page in pdf. Status: Ongoing • Once everyone realized where the remainder of the action was listed, they deemed it ongoing. 23 MEETING NOTES & TRIP REPORT - 4 - SBCFSA Meeting – April 15, 2024 FL5.8 2013 SBCFSA: Obtain an exemption to the Alaska Department of Natural Resources (DNR) Material Sales Fees on navigable rivers and streams and state lands for sediment and debris management, stream channel maintenance, and flood control or other mitigation projects. Status: Ongoing • A 5-year DNR permit was obtained for Sawmill Creek, which was a first. Having done this, they are hopeful of being able to obtain similar permits for other creeks. • Each creek requires its own permit. • Each permit must be renewed every 5 years. FL5.11 2013 SBCFSA: Get streamflow and rainfall monitoring gages. Status: Complete GF 6.4 2010 HMP: establish a retaining structure in Lowell Canyon to prevent avalanches from disrupting city water storage system. Status: Carry Forward GF 6.5 2010 HMP: Design and develop a new generation of diversion structures and flexible transmission poles to bend with the snow impact. Status: Discard? • No one was sure that this was possible. GF 6.6 2010 HMP: Create electrical infrastructure redundancies to reduce the risk of prolonged power outages by completing the following projects. • Complete an underground electrical supply circuit over Dairy Hill and through Two Lakes Park. o Not complete - still relevant Status: Ongoing • Complete an underground circuit from the South Harbor expansion to Jefferson along Ballaine Blvd. Status: Complete • Complete the SMIC electrical loop along Sorrel Rd. Status: Complete • Complete the electrical loop along Alameda St. To Leirer Rd. Status: Complete • Complete the underground electrical loop on Lowell Pt. from Beach Drive to Lowell Pt. Rd., and the loop from Shady Ln. to Beach Dr. O Not complete-still relevant-in conversations with Millers developing an easement and possible joint project. Status: Ongoing • Underground more of the distribution lines in avalanche areas, ex. Seward Hwy. Mile 22. o Not complete - still relevant Status: Ongoing WX9.5: Install AWS NOAA radios in public buildings. Status: Complete WX10.2: Clear trees and brush. Status: Complete • SBCFSA: This was for a specific project area and has been completed. MM11.1: Enc. Sites to meet standards/regulations for reporting HazMat. Status: Ongoing • SBCFSA: Tier 2 reporting. Partway through the meeting, Mary invited Tom Miller to speak about the needs at Lowell Point. Since the access road is subject to frequent landslides, residents need provision for emergency access/egress. There was a discussion of the DNR property that edges the lower half of the point. Tom owns property at the edge of this. He used a landing craft vehicle previously to help people with access needs in the last instance of being cut off. 24 MEETING NOTES & TRIP REPORT - 5 - SBCFSA Meeting – April 15, 2024 The southern end of Lowell Point is a popular park and not likely to be usable as a pier/mooring site. Both Tom and Carl, the owner of the northern part of Lowell Point, have land where a pier could be placed with some sort of breakwater required. Concern is especially high at this time because of an upcoming project to move the Lowel Canyon Tunnel at the other end of the access road which will likely interrupt access to the community over a period of years. ATTACHMENTS • Trip Photos • Sign In Sheet 25 MEETING NOTES & TRIP REPORT - 6 - SBCFSA Meeting – April 15, 2024 Trip Photos Photo 1: Overview of Seward Response Areas, Project Locations provided by Nick Chapman 26 MEETING NOTES & TRIP REPORT - 7 - SBCFSA Meeting – April 15, 2024 Photo 2: Project Area 1, Box Canyon Creek Revetment 27 MEETING NOTES & TRIP REPORT - 8 - SBCFSA Meeting – April 15, 2024 Photo 3: Project Area 2, Bruno Road Armoring; Area 3 Bridges Replacement and Relocation 28 MEETING NOTES & TRIP REPORT - 9 - SBCFSA Meeting – April 15, 2024 Photo 4: Area 4, Scheffler Creek Revetment, Mitigation Measures, Box Culvert 29 MEETING NOTES & TRIP REPORT - 10 - SBCFSA Meeting – April 15, 2024 30 Scheffler Creek / Flood Mitigation 31 water Resources Engineering | Analysis | Design Memorandum To: Nicholas Chapman, Seward-Bear Creek Flood Service Area, Program Manager | Kenai Peninsula Borough From: Lori Morrison, PE and Janie Dusel, PE Date: February 21, 2024 Re: Flood Mitigation Alternatives on Scheffler Creek The purpose of this memorandum is to present the development, analyses, and associated results and recommendations of flood mitigation alternatives on Scheffler Creek, located south of the Forest Acres subdivision in Seward, Alaska. 1 Background Scheffler Creek is located in the western portion of Seward, west of the Seward Highway and Resurrection Bay. The creek flows out of the mountains south of Mount Marathon and into a series of deep ditches along the western side of Phoenix Road. The ditch segments are connected by four driveway culverts. The creek then flows through an undeveloped vegetated area before crossing Dairy Hill Lane into the downstream lagoon, which ultimately flows into Resurrection Bay. Figure 1 shows the project location. In May 2023, AWR Engineering, LLC (AWR) completed a project to analyze and map flooding along the Japanese Creek alluvial fan. Because Japanese Creek and Scheffler Creek both impact flooding in the Forest Acres subdivision, Scheffler Creek was also analyzed and associated flood extents were mapped as a part of the project. After presenting the project results to the Seward-Bear Creek Flood Service Area (SBCFSA) Board, the Board requested to look at options to potentially mitigate flooding caused by Scheffler Creek. 2 Data Used The significant data sources used in this study are described below. • Japanese Alluvial Fan Flood Hazard Analyses. The hydrologic and hydraulic modeling developed for the above- referenced Japanese Creek study was used as the basis for the analysis in this study. Unless an exception is noted, associated data and assumptions as listed in the Japanese Creek report apply to the current study. • Visual Observations and Field Measurements. Members of the project team visited the project area on October 26, 2023. Varies pieces of drainage infrastructure in the area were located spatially and field measurements were made where practical. This included measuring the size, lengths, and invert elevations relative to the road surface for culverts along the main channel of Scheffler Creek, as well as documenting relevant observations about material, condition, etc. Within the area impacted by Scheffler Creek, driveway culverts were also located, and their size and material were documented. 32 Flood Mitigation Alternatives on Scheffler Creek AWR Engineering, LLC Page 2 of 14 • 2021 LiDAR. The project area LiDAR collected in October 2021 was used as the baseline topographic information for this study. The LiDAR resolution is 1.5 feet. No topographic survey was performed, and as such, all flood mitigation improvements discussed in this memorandum are considered approximate. Figure 1: Project Location 3 Flood Mitigation Scenarios and Model Development Hydraulic evaluation of the project area was completed using the SRH-2D program within the SMS 13.3 platform. This is a two-dimensional hydraulic analysis software commonly used for evaluating flood extents in complex flow scenarios, and is accepted by FEMA for flood analysis. Hydraulic evaluation was completed for existing conditions and proposed improvement scenarios. Details regarding the development of these models are discussed below. 33 Flood Mitigation Alternatives on Scheffler Creek AWR Engineering, LLC Page 3 of 14 3.1 Existing Conditions Model Development of the existing conditions model started with the baseline hydraulic model developed for the Japanese Creek project. The extent of this model was reduced to encompass only the area impacted by Scheffler Creek. From there, the model mesh was refined to capture more details of the local topography, and the spatial coverage of the Manning’s n values was refined. Model details, including a list of Manning’s n values used in the model, are provided in Attachment 2. Using the information collected from the site visit, the culverts that were in the original Japanese Creek model were updated to reflect the measurements taken, and the observed driveway culverts were added to the model. For the driveway culverts, the invert elevations and pipe lengths were approximated based on the LiDAR and aerial imagery. Additionally, based on visual observations of sediment in the culverts, the modeling assumed all of the driveway culverts to be halfway filled with sediment. Details regarding structures in the model are included in Attachment 2. The boundary conditions for this model were the same as discussed in the Japanese Creek report. The upstream boundary is the incoming design flow for Scheffler Creek. The downstream boundary is the FEMA-mapped water surface elevation for Resurrection Bay, which is applied to the downstream lagoon per the FEMA mapping. The 1% Annual Exceedance Probability (AEP) event was used as the baseline to develop the proposed improvements, but smaller and larger events were also considered as applicable. This is discussed further in Section 4. Details regarding the model boundary conditions and design events are provided in Attachment 2. The extent and components of the existing conditions model are shown in Figure 2. The resulting existing conditions flood extents are shown visually for the 1% AEP event in Attachment 1, Map 1. 34 Flood Mitigation Alternatives on Scheffler Creek AWR Engineering, LLC Page 4 of 14 Figure 2: Model Schematic 3.2 Proposed Conditions Models The following four improvements were considered to help mitigate flooding in the impacted area: 1) constructing a levee to the west of Barwell Street; 2) improving the drainage ditches on the northeast side of Phoenix Road; 3) 35 Flood Mitigation Alternatives on Scheffler Creek AWR Engineering, LLC Page 5 of 14 hydraulic improvements to the main Scheffler Creek channel; and 4) raising the elevation of Barwell Street, Phoenix Road, and/or Dairy Hill Lane. Descriptions of each of these improvements are discussed below. Levee. To mitigate the existing conditions flooding of the houses to the north of the main Scheffler Creek channel, this improvement involves constructing a levee in the area shown in Figure 3. The levee placement shown in the figure is expected to be within the right-of-way based on available parcel mapping. The modeled levee has a top width of 10 feet, side slopes of 2H:1V, an approximate top length of 230 feet, and elevations at the top of the levee varying linearly from 92 feet to 74.2 feet from west to east. This can be seen in the typical section and the plan and profile view included in Figure 3. It should be noted that the modeled dimensions were developed solely for for evaluation of flood mitigation. The levee should be structurally designed by a geotechnical and/or structural engineer to ensure it remains stable at a range of adjacent water flow depths. To work as a flood mitigation strategy, the levee should be constructed of fill material without void space such that water cannot flow through the levee embankment. The outside of the levee should be topped with riprap or other erosion resistant material to avoid erosion of the levee surface. The estimated fill quantity required to construct a levee at the modeled dimensions is approximately 900 cubic yards. Figure 3: Proposed Levee Schematic Plan View 36 Flood Mitigation Alternatives on Scheffler Creek AWR Engineering, LLC Page 6 of 14 Figure 3, Continued: Proposed Levee Schematic Typical Section (Not to Scale) Profile Improvements to Drainage Ditches. There is a system of existing drainage ditches and driveway culverts on the northeast side of Phoenix Road. To control the extent of flooding after Scheffler Creek overtops Phoenix Road, this improvement involves modifying these drainage ditches to provide the maximum hydraulic capacity practicable within the given space and while maintaining side slopes at 2H:1V or flatter. The plan view and typical section of the improved ditches are shown in Figure 4. The roughness coefficients of the ditches were also decreased to account for a maintained ditch, as listed in Attachment 2. Additionally, the driveway culverts were improved by assuming they have been maintained and are no longer half full of sediment, and by increasing their size as much as feasible without raising the existing driveway elevations. The improved culverts ranged in size from 24” to 36”, as listed in Attachment 2. It should be noted that the proposed ditches were sized with the intent to evaluate the maximum potential flood control that could be achieved with this improvement. In reality, there may be constructability concerns with fitting ditches of this size into the available right-of-way. The intent was to determine the maximum potential benefit and then down-size the proposed ditches to establish a size/benefit comparison. However, this option had minimal benefit 37 Flood Mitigation Alternatives on Scheffler Creek AWR Engineering, LLC Page 7 of 14 in reducing flood extents for larger flood flows (discussed further in Section 4), so a smaller, more achievable ditch size was not evaluated. Figure 4: Proposed Phoenix Road Ditches Plan View Typical Section (Not to Scale) 38 Flood Mitigation Alternatives on Scheffler Creek AWR Engineering, LLC Page 8 of 14 Main Channel Hydraulic Improvements. To improve the hydraulic capacity of the main channel of Scheffler Creek, this improvement involves replacing the four main culvert crossings of Scheffler Creek with larger structures. The four culverts are labeled in Figure 6. Table 1 shows the existing culvert sizes and the corresponding proposed structure sizes. Crossing 1 is proposed to be replaced by a small bridge; a sketch of the bridge plan view and cross section is provided in Figure 7. See Attachment 2 for additional details on the structures. The hydraulic capacity of the main channel was not improved because the current channel footprints are fully utilizing the available space, and existing channel side slopes are already very steep. Figure 6: Main Channel Culvert Crossings Table 1: Main Channel Crossing Improvements Crossing Label Original Crossing Proposed Crossing Crossing Length (ft) 1 64” X 43” CMP Arch 25’ Span Bridge 35 2 54” CMP Round 14’ X 6’ Concrete Box 43 3 (2) 64” X 43” CMP Arches 16’ X 5.5’ Concrete Box 46 4 54” CMP Round 13’ X 5.5’ Concrete Box 44 39 Flood Mitigation Alternatives on Scheffler Creek AWR Engineering, LLC Page 9 of 14 Figure 7: Proposed Bridge Concept Plan View Conceptual Cross-Section 40 Flood Mitigation Alternatives on Scheffler Creek AWR Engineering, LLC Page 10 of 14 Raising Road Elevations. To mitigate road overtopping, the following three options were considered for raising the road: 1) raising Barwell Street by one foot, 2) raising Phoenix Road by three feet, and 3) eliminating the sag in Dairy Hill Lane where overtopping is occurring by raising the road to an elevation of 18 feet. In each scenario, these modifications focused only on raising the elevation of the road, providing proof of concept for the flood mitigation modeling. This work did not evaluate the design feasibility of raising the road (e.g. utility impacts, right-of-way impacts, safety of the traveled way, etc.). If the SBCFSA elects to explore these options, additional roadway design feasibility should be evaluated. Modeled Scenarios. The proposed improvements described above were combined into the following eight flood mitigation scenarios: • Scenario 1: Construct the levee (standalone) • Scenario 2: Improve the ditches to the northeast of Phoenix Road (standalone) • Scenario 3: Raise Phoenix Road (standalone) • Scenario 4: Raise Dairy Hill Lane and replace the main Dairy Hill Lane crossing with an 11’-8” X 5’-9” aluminum box culvert • Scenario 5: Construct the levee and replace Crossing 1 on the main Scheffler Creek channel • Scenario 6: Construct the levee, replace Crossing 1, and improve the ditches to the northeast of Phoenix Road • Scenario 7: Construct the levee, replace all crossings on the main Scheffler Creek channel, and improve the ditches to the northeast of Phoenix Road • Scenario 8: Construct the levee, replace all crossings on the main Scheffler Creek channel, improve the ditches to the northeast of Phoenix Road, and raise Barwell Street and Phoenix Road Each of these scenarios were assessed at the 1% AEP event. Where applicable, smaller and larger events were also considered on a case-by-case basis for different improvement scenarios, as discussed below. 4 Results and Discussion The model results are presented visually in Attachment 1. This attachment includes the flood extents and depth maps for existing conditions (Maps 1 and 2) and for the eight flood mitigation scenarios detailed above (Maps 3 – 11). The impacts that each scenario had on the flood extents are discussed below. Additionally, for each scenario where applicable, the return period flood event (down to the 10% AEP event) for which the scenario would alleviate the overtopping of Phoenix Road was determined. Scenario 1. • 1% AEP Event. The 1% AEP flood extent map for this scenario is provided as Map 3 in Attachment 1. By adding the levee to the west of Barwell Street, the flooding to the north of Barwell Street is significantly reduced. The parcel on the corner of Barwell Street and Phoenix Road is still impacted, but less so than under the existing conditions. This scenario does not eliminate overtopping of Phoenix Road. • Smaller Events. This scenario was also evaluated at smaller events, and overtopping of Phoenix Road is still expected, even for the 10% AEP event. Events smaller than the 10% AEP event were not evaluated. 41 Flood Mitigation Alternatives on Scheffler Creek AWR Engineering, LLC Page 11 of 14 Scenario 2. The 1% AEP flood extent map for this scenario is provided as Map 4 in Attachment 1. By providing more hydraulic capacity in the driveway ditches, this scenario reduces the flood extents on the northeastern side of Phoenix Road and reduces the overtopping of the southern portion of Phoenix Road. Scenario 3. • 1% AEP Event. The 1% AEP flood extent map for this scenario is provided as Map 5 in Attachment 1. By raising the elevation of Phoenix Road by three feet, most of the overtopping of Phoenix Road is mitigated at the 1% AEP event, with the exception of two locations, as shown in the map. • Smaller Events. This scenario is expected to eliminate overtopping of Phoenix Road for events up to and including the 25% AEP event. This result is not shown visually in a map, but can be provided if requested by the SBCFSA. Scenario 4. The 1% AEP flood extent map for this scenario is provided as Map 6 in Attachment 1. By raising Dairy Hill Lane and replacing the main crossing, the overtopping of Dairy Hill Lane is eliminated at the 1% AEP event. The specific combination of road raising and culvert replacement in this scenario is just one of many road raising and culvert replacement options that would likely provide relief from the road overtopping. It should be noted that due to backwater effects of the downstream lagoon, raising the road (not just improving the culvert itself) is necessary to mitigate the overtopping. The 1% AEP water surface elevation in the lagoon is 14.9 feet, and the inlet invert of the main crossing is approximately 10.1 feet. As such, water moving through the culvert is largely dictated by the lagoon water surface elevation and not the size of the culvert itself. This improvement was not included in any other flood mitigation scenarios because the upstream flooding of the Phoenix Road area is not influenced by the downstream flooding of the Dairy Hill Lane area. Scenario 5. • 1% AEP Event. The 1% AEP flood extent map for this scenario is provided as Map 7 in Attachment 1. By constructing the levee and replacing Crossing 1 with a bridge, the flood impacts on the parcel at the corner of Barwell Street and Phoenix Road is eliminated. • Smaller Events. Similar to Scenario 1, Phoenix Road is still expected to overtop at the 10% AEP event. Scenario 6. • 1% AEP Event. The 1% AEP flood extent map for this scenario is provided as Map 8 in Attachment 1. This scenario combines the flood extent reduction of Scenario 5 and Scenario 2. • Smaller Events. Phoenix Road is still expected to overtop during the 10% AEP event. Scenario 7. • 1% AEP Event. The 1% AEP flood extent map for this scenario is provided as Map 9 in Attachment 1. The flood extents are slightly reduced compared to Scenario 6 due to the added capacity within the Scheffler Creek main channel, which results in a smaller volume of water overtopping Phoenix Road. However, Phoenix Road is still expected to overtop. • Smaller Events. Phoenix Road is still expected to overtop during the 10% AEP event. 42 Flood Mitigation Alternatives on Scheffler Creek AWR Engineering, LLC Page 12 of 14 Scenario 8. • 1% AEP Event. The 1% AEP flood extent map for this scenario is provided as Map 10 in Attachment 1. By combining the raising of Barwell Street by one foot, raising Phoenix Road by 3 feet, and the improvements of Scenario 7, Phoenix Road does not overtop during the 1% AEP event, and the flooding impacts to developed parcels are mitigated. • Larger Events. The performance of this scenario during the 0.2% AEP event is provided as Map 11 in Attachment 1. 5 Additional Flood Protection Measures In addition to the flood mitigation measures investigated in this study, it may be beneficial to implement general riparian area preservation in the area upstream of Barwell Street. During the October 26, 2023 site visit, the project team observed recent excavation and filling activities in the vicinity of the creek on the private parcel shown in Figure 8. Photos are provided in Figure 9. Depositing fill in this area around the creek has the potential to change the natural course of the stream and to cause fill material to mobilize and wash downstream during high flow events. It may be advantageous to delineate an area around the creek in which the natural flow path of the creek and the associated creek riparian areas remain generally undisturbed. Additionally, upstream of the private parcel, the creek flows on land owned by the City of Seward. Regular removal of downed trees or trees that are unstable may help maintain the flow capacity of the channel and avoid log jams that cause water to flow out of the creek banks in this vicinity. Care should be taken to minimize disturbance of the creek banks and associated riparian area. Figure 8: Parcel Upstream of Barwell Street 43 Flood Mitigation Alternatives on Scheffler Creek AWR Engineering, LLC Page 13 of 14 Figure 9: Excavation and Fill Activities Upstream of Barwell Street Fill material placed near Scheffler Creek upstream of Barwell Street 6 Recommendations By considering eight different flood mitigation scenarios for Scheffler Creek, this study provides an overview of the potential flood extent reduction that could be achieved by implementing the various combinations of proposed improvements. Depending on the acceptable level of flood mitigation, available project budget, and acceptable project extents, the information presented in this memorandum can be used to select a preferred scenario to serve as a concept for design of the improvements. 44 Flood Mitigation Alternatives on Scheffler Creek AWR Engineering, LLC Page 14 of 14 7 Limitations The limitations discussed in the Japanese Alluvial Fan Flood Hazard Analyses report apply to the hydraulic analysis completed for this project. Additionally, the mitigation scenarios for this project are concept level, and are not appropriate for use as construction drawings or for evaluating detailed area-wide impacts/footprints of proposed alternatives. 8 Attachments 1. Flood Maps 2. Model Details 45 Attachment 1 Flood Maps 46 Existing Conditions 1% AEP Flood Depths Seward-Bear Creek Flood Service Area Flood Mitigation Alternatives February 2024 ± Ma p 0 1 Scheffler Creek 0 200 400100 Feet Legend Mapping Boundary Water Depth 0.0' 6.5' SCHEF F L E R C R E E K Se w ar d Hi g h wa y Re s u r r e ct i o n B ou l e v a r d Ph o e n i x R o a d 47 Existing Conditions 0.2% AEP Flood Depths Seward-Bear Creek Flood Service Area Flood Mitigation Alternatives February 2024 ± Ma p 0 2 Scheffler Creek 0 200 400100 Feet Legend Mapping Boundary Water Depth 0.0' 7.0' SCHEF F L E R C R E E K Se w ar d Hi g h wa y Re s u r r e ct i o n B ou l e v a r d Ph o e n i x R o a d 48 Scenario 1 1% AEP Flood Depths Seward-Bear Creek Flood Service Area Flood Mitigation Alternatives February 2024 ± Ma p 0 3 Scheffler Creek 0 200 400100 Feet Legend Mapping Boundary Water Depth 0.0' 6.3' SCHEF F L E R C R E E K Se w ar d Hi g h wa y Re s u r r e ct i o n B ou l e v a r d Ph o e n i x R o a d 49 Scenario 2 1% AEP Flood Depths Seward-Bear Creek Flood Service Area Flood Mitigation Alternatives February 2024 ± Ma p 0 4 Scheffler Creek 0 200 400100 Feet Legend Mapping Boundary Water Depth 0.0' 6.5' SCHEF F L E R C R E E K Se w ar d Hi g h wa y Re s u r r e ct i o n B ou l e v a r d Ph o e n i x R o a d 50 Scenario 3 1% AEP Flood Depths Seward-Bear Creek Flood Service Area Flood Mitigation Alternatives February 2024 ± Ma p 0 5 Scheffler Creek 0 200 400100 Feet Legend Mapping Boundary Water Depth 0.0' 7.9' SCHEF F L E R C R E E K Se w ar d Hi g h wa y Re s u r r e ct i o n B ou l e v a r d Ph o e n i x R o a d 51 Scenario 4 1% AEP Flood Depths Seward-Bear Creek Flood Service Area Flood Mitigation Alternatives February 2024 ± Ma p 0 6 Scheffler Creek 0 200 400100 Feet Legend Mapping Boundary Water Depth 0.0' 6.6' SCHEF F L E R C R E E K Se w ar d Hi g h wa y Re s u r r e ct i o n B ou l e v a r d Ph o e n i x R o a d 52 Scenario 5 1% AEP Flood Depths Seward-Bear Creek Flood Service Area Flood Mitigation Alternatives February 2024 ± Ma p 0 7 Scheffler Creek 0 200 400100 Feet Legend Mapping Boundary Water Depth 0.0' 6.4' SCHEF F L E R C R E E K Se w ar d Hi g h wa y Re s u r r e ct i o n B ou l e v a r d Ph o e n i x R o a d 53 Scenario 6 1% AEP Flood Depths Seward-Bear Creek Flood Service Area Flood Mitigation Alternatives February 2024 ± Ma p 0 8 Scheffler Creek 0 200 400100 Feet Legend Mapping Boundary Water Depth 0.0' 6.5' SCHEF F L E R C R E E K Se w ar d Hi g h wa y Re s u r r e ct i o n B ou l e v a r d Ph o e n i x R o a d 54 Scenario 7 1% AEP Flood Depths Seward-Bear Creek Flood Service Area Flood Mitigation Alternatives February 2024 ± Ma p 0 9 Scheffler Creek 0 200 400100 Feet Legend Mapping Boundary Water Depth 0.0' 6.4' SCHEF F L E R C R E E K Se w ar d Hi g h wa y Re s u r r e ct i o n B ou l e v a r d Ph o e n i x R o a d 55 Scenario 8 1% AEP Flood Depths Seward-Bear Creek Flood Service Area Flood Mitigation Alternatives February 2024 ± Ma p 1 0 Scheffler Creek 0 200 400100 Feet Legend Mapping Boundary Water Depth 0.0' 7.2' SCHEF F L E R C R E E K Se w ar d Hi g h wa y Re s u r r e ct i o n B ou l e v a r d Ph o e n i x R o a d 56 Scenario 8 0.2% AEP Flood Depths Seward-Bear Creek Flood Service Area Flood Mitigation Alternatives February 2024 ± Ma p 1 1 Scheffler Creek 0 200 400100 Feet Legend Mapping Boundary Water Depth 0.0' 8.4' SCHEF F L E R C R E E K Se w ar d Hi g h wa y Re s u r r e ct i o n B ou l e v a r d Ph o e n i x R o a d 57 Attachment 2 Model Details 58 Manning's n values used in the hydraulic models Surface Type Manning's n Value Source Forested Area 0.10 Table value1 Forested Area ‐  Steep Slope 0.12 Table value1 Grass/Barren Surface 0.04 Table value1 Gravel 0.02 Table value1 Impervious Surface 0.013 Table value1 Resurrection Bay 0.035 FEMA Model Scheffler Creek Channel ‐ Steep Slope 0.08 Observations Scheffler Creek Channel ‐ Moderate Slope 0.05 Observations Scheffler Creek Channel ‐ Mild Slope 0.035 Observations Tall Grasses 0.05 Table value1 Flow Channel into Lagoon 0.045 Observations Wetland Channel 0.038 Observations Maintained Ditches 0.035 Table value1 1Open‐Channel Hydraulics (Chow, 1959) Attachment 2: Model Details Page 1 of 559 Boundary conditions for the hydraulic model Boundary Condition Type 10% AEP 4% AEP 1% AEP 0.2% AEP Source Scheffler Creek Flow, cfs 385.0 502.0 724.8 1,158.4 Rainfall‐Runoff Model Resurrection Bay Stage, ft 14.1 14.6* 14.9 15.4 FEMA *Value is the 2% AEP stage because the 4% AEP value was not provided in the Flood Insurance Study      Upstream      Downstream Attachment 2: Model Details Page 2 of 560 Existing Culvert Structures ‐ Refer to map on Page 5 for structure numbers No. of  Barrels Shape Size (in)Length  (ft)Material Manning's  n US Invert  (ft) DS Invert  (ft) 1 Circular 18 47 Smooth HDPE 0.013 71.5 71.1 1 Arch 64 X 43 24.5 CMP 0.034 64.8 64.5 1 Circular 24 40 CMP 0.025 64.2 63.1 1 Circular 18 30 CMP 0.025 62.25 61.65 1 Circular 54 43 CMP 0.025 56.8 52.4 1 Circular 18 80 CMP 0.025 55.19 51.46 2 Arch 64 X 43 39 CMP 0.034 49.0 48.9 1 Circular 24 58 CMP 0.025 49.7 47.53 1 Circular 54 36 CMP 0.025 41.9 41.1 1 Circular 18 80 CMP 0.025 49.25 46.1 1 Circular 24 30 Smooth HDPE 0.013 44.44 43.03 1 Circular 12 37 CMP 0.025 28.54 27.46 1 Circular 18 42 CMP 0.025 24.95 22.65 1 Circular 18 40 Smooth HDPE 0.013 24.69 23.3 1 Circular 12 41 CMP 0.025 24.3 22.9 1 Circular 18 37 CMP 0.025 23.97 22.35 1 Circular 18 28 CMP 0.025 28.35 27.59 1 Circular 18 42 CMP 0.025 31.1 30.65 1 Circular 18 35 CMP 0.025 34.55 33.05 1 Circular 18 48 Smooth HDPE 0.013 36.05 35.95 1 Circular 18 35 Smooth HDPE 0.013 37.51 36.25 1 Arch 43.75 X 26.62 44 Concrete 0.015 12.2 11.15 1 Open  Bottom  Arch 72 X 38 58 Concrete 0.015, 0.035 10.1 10.0 2 Circular 24 58 CMP 0.025 11.7 11.0 *Driveway culvert embedded to a depth of half the diameter; bottom Manning's n assumed to be 0.035 24 6* 7 8* 9 10* 11* Culvert 1 2 3 4* 20* 21* 22 23 12* 13* 14* 15* 16* 17* 18* 19* 5 Attachment 2: Model Details Page 3 of 561 Improved Culvert Structures ‐ Refer to map on Page 5 for structure numbers No. of  Barrels Shape Size (in)Length  (ft)Material Manning's  n US Invert  (ft) DS  Invert  (ft) 1 Circular 24 36 Smooth HDPE 0.013 61.0 59.0 1 Box 168 X 72 43 Concrete 0.015 56.5 52.5 1 Circular 36 81 Smooth HDPE 0.013 53.5 50.0 1 Box 192 X 66 46 Concrete 0.015 49.5 48.9 1 Box 156 X 66 44 Concrete 0.015 43.5 40.5 1 Circular 24 84 Smooth HDPE 0.013 48.0 44.2 1 Circular 36 47 Smooth HDPE 0.013 43.57 41.0 1 Circular 36 59 Smooth HDPE 0.013 27 24.73 1 Circular 30 42 Smooth HDPE 0.013 24 23.7 1 Box 140 X 69 58 CMP 0.034 10.1 10 Improved Bridge Structure Low Cord  (ft) Crest  Elev (ft) Length  (ft) 2 69.82 72.12 35 Previous Culvert Culvert 4 5 13 23 6 7 9 10 11 12 Attachment 2: Model Details Page 4 of 562 Scheffler Creek Model SchemaƟc with Structures Numbered Attachment 2: Model Details Page 5 of 563 P&Z Rules of Procedures 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 Transient Merchants 105 Created: 2024-02-01 15:08:57 [EST] (Supp. No. 27-1) 15.10.226 Land uses allowed. A.Table 15.10.226 Land Uses Allowed is incorporated herein by reference and the restrictions contained therein are mandatory unless otherwise modified by this chapter (See Table 15.10.226) B.Lodging as defined in section 15.10.140B. is allowed in accordance with table 15.10.225 of this chapter and subject to the following conditions: 1.Regardless of the date such use began, an annual administrative permit is required. Prior to issuing the permit, the City shall conduct an annual life safety inspection of each guest room to assure compliance with the current adopted building code door/window egress standards, the presence of an operable and inspected fire extinguisher and adequate smoke detection systems, a posted evacuation plan, and visible signs showing exit locations. 2.The application for an annual administrative permit shall be accompanied by a fee established by City Council resolution. A fee will be issued for each separate, advertised, rentable lodging unit. 3.Before any permit is issued, the applicant shall furnish evidence of the existence of one or more policies of insurance, issued by an insurance company satisfactory to the City, providing insurance coverage for lodging. Policies shall stipulate that the insurer will give written notice to the City at least 30 days prior to the cancellation, expiration, lapse or other termination of the insurance coverage. 4.Parking will be provided in accordance with section 15.10.215 of this chapter. 5.No cooking or cooking facilities are permitted in individual guest bedrooms. 6.Within principally residential districts RR, R1, R2, R3, UR lodging is limited to a home occupation within an owner-occupied dwelling which is the owner's principal place of residence and to the rental of not more than 50 percent of the bedrooms to a maximum of three. 7.Within principally residential districts R2, R3, UR, lodging in multifamily dwellings is limited to not more than 50 percent of the dwelling units with one of the units being the owner's principal place of residence. 8.Within commercial districts lodging within a dwelling unit is limited to the rental of not more than five guest bedrooms regardless of building or business ownership. 9.Within principally commercial districts OR, AC, HC, and CB, excluding the Industrial zoning district, multifamily dwellings used for lodging purposes are not required to be the business or property owner's principal place of residence. The use shall be limited to not more than five dwelling units. 10.The rental of individual rooms for lodging purposes is not extended to apartment unit tenants. 11.Regardless of business name, the use of more than five guest bedrooms or apartments is considered a motel or hotel for building and other code interpretation purposes. C.Mobile vendor as defined in section 15.10.140(B)(98) Vending (C) of this chapter and which are allowed in accordance with table §15.10.225 are subject to the following development requirements: 1.An application for a mobile vendor must be submitted on a form provided by the City Clerk's office yearly with colored pictures of at least two different angles of the unit the applicant is applying to license and a description that includes the length and width, when in its widest configuration. 2.Mobile vendors may operate at designated locations, by permit. Policies and procedures shall be set by resolution of the City Council. 3.The City police department has the right to close down a mobile vendor if vending is causing or contributing to an imminent public safety hazard. 106 Created: 2024-02-01 15:08:57 [EST] (Supp. No. 27-1) 4.No mobile vending shall take place on public property between the hours of 10:00 p.m. and 6:00 a.m. unless otherwise posted. 5.A mobile vendor may only offer, for sale, the following types of goods and services on public property: food and/or non-alcoholic beverages; handicrafts, artwork, jewelry or similar goods or firewood. 6.Licenses. In addition to complying with City of Seward ordinances related to mobile vendors and applicable regulations, the owner and operator is responsible for applying for and obtaining all other necessary licenses and satisfying the standards of the City permit conditions. 7.Mobile vendor vehicles or carts may not remain in place overnight or in City parking lots. 8.Mobile vendor vehicles must be self-contained when operating, except for the required trash and or recycling receptacles, which shall be in a safe location and in no event shall impede the free movement of automobiles or pedestrians, within their permitted lot or space. 9.Mobile vendors must serve to the sidewalk or esplanade next to a sidewalk when parked in spaces parallel to City sidewalks. 10.It shall be unlawful for a vendor to attract customers by hawking or physically accosting persons. 11.Each mobile vendor vehicle shall provide the City with a certificate of insurance to cover public liability in the standard amount set by City policy. Insurance policies shall stipulate that the insurer will give written notice to the City at least 30 days prior to cancellation or other termination in coverage. Prior to acceptance of their permit, vendors shall execute an instrument under the terms of which the permittee shall agree to indemnify, defend, and hold harmless the City from any and all claims for injury or damage to persons or property suffered in connection with vendor activities. 12.Any mobile vendor base station shall be properly licensed. 13.Mobile vendors shall comply with all City code, policy and procedures. Failure to adhere to the regulations for mobile vendors is cause for revocation or suspension of the license / permit by the City Clerk. 14.Mobile vendors shall display required permits and City business license in a prominent location on the mobile vending cart or vehicle from which the business is conducted pursuant to the permit, so it is protected from the weather and easily visible to the public. D.Roving vendor as defined in section 15.10.140 B 98 (e) of this chapter and which are allowed in accordance with table 15.10.225 are subject to the following development requirements: 1.Roving vendors shall not vend on any public street where the legal speed limit exceeds 25 miles per hour, or on Fourth Avenue between Port Avenue and Van Buren Street, and also excluding that portion of Fourth and Fifth Avenues between Jefferson Street and Railway Avenue. 2.Roving vendors shall not vend on any public street before 6:00 a.m. or after 10:00 p.m., unless otherwise posted. 3.Roving vendors shall vend only when the vehicle is lawfully parked and completely stopped. 4.Roving vendors shall vend on public streets from the side of the vehicle away from moving traffic, and within one foot of the curb or edge of the street. 5.Roving vendors shall not vend or permit the vehicle to stand in one place in any public place or street for more than 30 minutes or in front of any premises for any time if the owner or lessee objects. 6.An application for a roving vendor vehicle must be submitted on a form provided by the City Clerk's office yearly with colored pictures of at least two different angles of the unit the applicant is applying to license and a description that includes the length and width, when in its widest configuration. 107 Created: 2024-02-01 15:08:57 [EST] (Supp. No. 27-1) 7.The City police department has the right to close down or request a roving vendor to relocate if vending is causing or contributing to an imminent public safety hazard. 8.In addition to complying with City ordinances and permit conditions related to roving vendors, the owner and operator is responsible for applying for and obtaining all other necessary licenses required for the service of food. The roving vendor vehicle shall be in compliance with the motor vehicle laws of the state, and the roving vendor vehicle owner is responsible for complying and verifying that a specific location or route does not violate dity zoning code. 9.Roving vendors shall comply with all traffic rules. 10.Each roving vendor vehicle must provide the City with a certificate of insurance to cover public liability in the standard amount set by City policy. Insurance policies shall stipulate that the insurer will give written notice to the City at least 30 days prior to cancellation or other termination in coverage. Prior to acceptance of their permit, vendors shall execute an instrument under the terms of which the permittee shall agree to indemnify, defend, and hold harmless the City from any and all claims for injury or damage to persons or property suffered in connection with vendor activities. 11.Any roving vendor base station must be properly licensed. 12.Roving vendors shall comply with City code, policy and procedures. Policies and procedures shall be set by resolution of the City Council. Failure to adhere to the regulations for roving vendors is cause for revocation or suspension of license permit by the City Clerk. 13.Roving vendors shall display required permits and City business license in a prominent location on the mobile vending cart or vehicle from which the business is conducted pursuant to the permit, so it is protected from the weather and easily visible to the public. E.Transient merchants as defined in section 15.10.140B. of this chapter and which are allowed in accordance with table 15.10.225 are subject to the following development requirements: 1.For purposes of this chapter, such use and storage of equipment shall be limited to a period not exceeding 150 consecutive days in a calendar year. 2.Transient merchant facilities shall be and remain legally licensed and road ready and shall be removed completely from the property at the end of 150 days. 3.Transient merchants shall provide for the concealed storage of all inventory, supplies, equipment and other materials brought to the site in connection with the business conducted there. 4.Transient merchants using vehicles and trailers in the operation of transient business activities authorized by this chapter shall ensure that the area of operation meets the required setbacks as provided by section 15.10.220. In no case shall the allowed area of operation be less than five feet from any property line, permanent structure or other transient merchant. 5.Prior to operation, vehicles and trailers utilized for transient merchant purposes shall have blocked tires and be fully skirted to match the vehicle or trailer. 6.Any additions, including, but not limited to, porches, platforms and decks, shall be sided or painted to match or complement the vehicle or trailer prior to operation. 7.Every transient merchant shall provide sufficient trash receptacles on-site and ensure the proper disposal of all garbage collected on the site. 8.The use of generators is prohibited. 9.No transient merchant shall conduct business on property owned or operated by the City except in accordance with chapter 8.10 of this Code. 108 Created: 2024-02-01 15:08:57 [EST] (Supp. No. 27-1) 10.Transient merchants shall conform to all federal, state and local laws. F.Reserved. G.Livestock as defined in section 15.10.140B. are allowed in accordance with table 15.10.225 of this chapter subject to the following: 1.Lot size may not be less than 20,000 square feet per large animal, or not less than 20,000 square feet for every two small animals (excluding chickens and rabbits). 2.Livestock fencing shall be no closer than five feet from a property line. 3.A City-approved drainage plan showing that runoff from the livestock corral or pen will not adversely impact neighboring property or streams. 4.A City-approved manure storage and disposal plan. The manure storage pile shall not be closer than 25 feet from any property line. 5.Up to five chickens (hens) or rabbits are allowed in accordance with table 15.10.225. 6.Chicken or rabbit coops and enclosures are required and must meet a minimum setback of 25 feet from neighboring homes. 7.Chickens or rabbits are not allowed on lots with more than one dwelling unit. H.Marijuana establishments as defined in section 15.10.140.B.53 are allowed in accordance with table 15.10.225 of this chapter subject to the following: 1.The facility owner or operator has submitted a license application to the State of Alaska for the corresponding type of marijuana establishment prior to operation, and maintains a current license from the state at all times the facility is in operation. 2.Marijuana establishments shall not to be located within 500 feet of the entrance of any building where religious ceremonies are regularly held, a correctional facility, recreational facility or youth center licensed by the state or local government, or within 1,000 feet of any school. The distance specified in this subsection must be measured by the shortest pedestrian route from the public entrance of the building in which the licensed premises would be located to the outer parcel boundaries of the school, recreation or youth facility or to the main public entrance of the building in which religious services are regularly held, or the correctional facility. The burden of proof demonstrating that the facility meets the required separation distances is the responsibility of the marijuana establishment owner or operator. 3.In this title, standard or limited marijuana cultivation facility meeting all other criteria in this Code and in Alaska Statutes and Administrative Codes are classified as a Greenhouse(s)/Commercial, except that a limited marijuana cultivation facility as an accessory use secondary to a residence may be classified as a Home Occupation use. 4.In this title, a marijuana testing facility meeting all other criteria in this Code and in Alaska Statutes and Administrative Codes is classified as an Office - Business or Professional use. 5.In this title, a marijuana product manufacturing facility or a marijuana concentrate manufacturing facility using hazardous materials in the manufacturing process and meeting all other criteria in this Code and in Alaska Statutes and Administrative Codes is classified as a Manufacturing - Heavy use. Facilities not using hazardous materials in the manufacturing process are classified as a Manufacturing, Light use. 6.In this title, a retail marijuana store meeting all other criteria in this Code and in Alaska Statutes and Administrative Codes is classified as a Business - Retail Sales and Service use. 109 Created: 2024-02-01 15:08:57 [EST] (Supp. No. 27-1) I.Camping is allowed subject to the following: 1.Camping for a fee shall be allowed within the City limits only in municipal campgrounds, as defined in section 7.15, or in private camper parks operating under a permit, as defined in section 8.15. 2.Other than permitted camper parks, camping on privately owned lots as an accessory use to an occupied, single family home is limited to private non-commercial use and for no fee. Such occupancy shall be limited to one camping unit at a time and shall be for recreational or vacationing purposes only. Camping as provided in this section shall not occur earlier than April 15th and no later than September 30th J.Employee Campgrounds are allowed in accordance with table 15.10.226 of this chapter subject to the following: 1.Employee campgrounds are for established businesses with high seasonal employment of transient workers, and are not to be construed as construction camps. No employee campground may be open for more than 180 days per calendar year, and may not open earlier than April 15, nor remain active later than September 30, except by resolution of the City Council based on specific findings that a longer term, earlier opening date and/or later closing date is warranted because of special circumstances. 2.Camping units as described in [section] 15.10.140 are not permitted. For the purposes of this section, a camping unit is described as a modified camping Connex, providing living facilities for one or more persons. 3.Occupancy in an employee campground is limited to the transient workers of that industry or business granted a conditional use permit. 4.Garbage and refuse. The requirements of section 8.15.340 shall also apply to employee campgrounds. 5.Sanitary facilities shall be provided and include either permanent or portable toilets on-site. If permanent facilities are constructed, they shall conform to section 8.15.425(b). Shower facilities shall be provided and may either be on-site in conformance with section 8.15.425(b), or provided on the job site of the employer. 6.The requirements for spacing shall be at least ten feet clear space between camping units. Camping units, other than those being used for living accommodations, shall not be parked within the campground area proper. (Ord. 626, § 3, 1989; Ord. 633, §§ 3, 4, 1990; Ord. 639, 1991; Ord. 90-2; Ord. 91-1; Ord. 91-04; Ord. 92-02; Ord. 94- 11; Ord. 94-25; Ord. 95-07; Ord. 95-13; Ord. 95-17; Ord. 96-05; Ord. 97-13; Ord. 98-09, § 4; Ord. No. 2012-002, § 1; Ord. No. 2014-004, § 1; Ord. No. 2016-005, § 3; Ord. No. 2018-004, § 1; Ord. No. 2022-003, § 1, 1-24-2022; Ord. No. 2022-016, § 2, 1-9-2023) Editor's note(s)—Ord. No. 2018-004, § 1, adopted § 1, 7-9-2018 renumbered § 15.10.225, to § 15.10.226, as herein set out. TABLE Zoning District Designations The following zoning district abbreviations are provided for information and interpretation: RR = Rural, very low density single-family residential R1 = Single-family, low density residential R2 = Single and two-family, medium density residential R3 = Single, two and multi-family, high density residential 110 Created: 2024-02-01 15:08:57 [EST] (Supp. No. 27-1) UR = Urban residential, a mix of residential uses and low impact home professional offices OR = Office residential AC = Auto and neighborhood oriented, light commercial HC = Harbor commercial CB = Central business district - dense downtown commercial I = Industrial RM = Resource management - partially developable lands subject to floodplains and steep slopes INS = Institutional, public, quasi-public uses P = Parks 111 Created: 2024-02-01 15:08:57 [EST] (Supp. No. 27-1) Table 15.10.226. Land Uses Allowed KEY: O - Use Permitted Outright H - Home Occupation C - Use Requires Conditional Use Permit P - Use Requires Administrative Permit Blank - Use Prohibited Zoning Districts Principally Residential Principally Commercial Principally Public Uses RR R1 R2 R3 UR OR AC HC CB I RM INS P Accessory building O O O O O O O O O O O O O Adult entertainment INTENTIONALLY LEFT BLANK Agency, i.e., travel, insurance, title, real estate, etc. O O O O O Agriculture O Airport and related services O C Amusement or recreation facility O O O Animal shelter O C C Antenna, personal TV, satellite dish O O O O O O O O O O O O Art gallery O O O O O Assemblages, temporary large, i.e., circus, fair P P P P P P P Attraction, permanent major visitor C C C C C Auditorium O O O Auto repair, i.e., mechanic, glass body, upholstery C O Auto service/gas station O O O 112 Created: 2024-02-01 15:08:57 [EST] (Supp. No. 27-1) Auto/RV sales and rentals O O O Boat sales O O O Boat, commercial building/fabrication O O Boat, harbor/marina C C C C C Boat, repair and maintenance O O O C Boat, storage commercial O O O C Bulk material, i.e., concrete, gravel, sand, asphalt C C Business, marine retail sales and service O O O O C Business, package liquor O O O Business, retail sales and service O O O O Business, retail sales and service, industrial O Campground, municipal C/P C/P C/P C/P Campground, camper park, private C/P C/P C/P Campground, employee C/P Car/boat wash O O O Cemetery O C O Center, community/civic O O C C Center, mariner's O O O O Center, senior or teen C C C O O C C Child care, licensed center C C O O O C Child care, licensed home O O O O O O O O O Church C C C C C C O O O O Clinic, medical O O O O O Clubs, fraternal/lodges/social/veterans C O O C 113 Created: 2024-02-01 15:08:57 [EST] (Supp. No. 27-1) Cluster subdivision C C C Commercial Communications tower less than 16 feet diameter or 75 feet in height C C C C C C Commercial Communications tower 16 feet diameter or greater than 75 feet in height C C C Correctional/prison facility C C C C Crematory O Docks/wharves, industrial cargo O O C C Dock, passenger O O O C O Drinking establishment, i.e., bar, nightclub, lounge C C C Drive-in facility—Fast food, banking, etc. C C C C C Dwelling, apartment in a commercial building (limited to one unit) O O O O O C Dwelling, apartment in a commercial building (two or more units) O O C C Dwelling, apartment, efficiency or accessory O O O O O O O Dwelling, apartment, studio C C C C C C Dwelling, attached single- family, i.e., townhouse, row C C C C C C C Dwelling, condominium C C C C C C C Dwelling, detached single- family O O O O O O O C C Dwelling, group home O O O O O O C 114 Created: 2024-02-01 15:08:57 [EST] (Supp. No. 27-1) Dwelling, guest house O O C Dwelling, multi-family (3 or more units) C C C C C C C Dwelling, two-family or duplex O O O O O C C Dwelling, watchman or caretaker O C Emergency services, pub/vol; i.e., fire, ambulance, rescue C C C C C C O C O O C O Financial institution, i.e., bank, S&L C O O Flea market, open air retail other than occasional C C C Fuels, bulk storage and sales C Golf course O O C Golf driving range O O O O C Greenhouse/nursery— Commercial O O O Grocery, convenience store C C C O O O O Grocery, supermarket, foodmart O O Health club C C O O O Home occupation O O O O O O O O O O Hospital C C Housing, bunkhouse C C C Housing, dormitory O O Housing, nursing, retirement, convalescent C C C Kennel, commercial, musher or fancier INTENTIONALLY LEFT BLANK Laundry, dry cleaning O C O O Library O O O O 115 Created: 2024-02-01 15:08:57 [EST] (Supp. No. 27-1) Livestock, excluding chickens and rabbits P P Livestock, chickens and rabbits P P P P P P P P P Lodging, B&B H/P H/P H/P H/P H/P O/P O/P O/P O/P Lodging, hostel P P P P P P Lodging, hotel, motel, lodge, inn C O C C Lodging, short-term rental H/P H/P H/P H/P H/P P P P P Lumber yard/building supply C O C Manufacturing—noxious, heavy C Manufacturing, light fabrication, assembly C C O Merchant, transient O O O O Mobile home park C/P Mobile home, residential, not in park INTENTIONALLY LEFT BLANK Mobile home sales O O Mobile medical unit O O O Mobile vendor P P P P P P P P P P P Mortuary/funeral home O O O Museum C O O O O O Office, boat charter, guide O O O O O C Office, business or professional O O O O O Office, government/quasi- government administration O O O O O O O Office, mobile/temporary on construction site P P P P P P P P P P P P P Office, home, professional O O O O O Parking lot C C O O O O O O O O 116 Created: 2024-02-01 15:08:57 [EST] (Supp. No. 27-1) Personal services, i.e., beauty, shoe, tailor O O O O Planned unit development C C C C C C Playground, public tot lot O O O O O O O O O O O Railroad C C C C Recreation, commercial indoor, i.e., bowling, skating O O O C Recreation, outdoor, i.e., miniature golf O C C C Recreation, shooting range C C C Recycling center C C O C Recycling, self-service drop-off point O O O O O O O O Rental, Long-term O O O O O O O O O O C C Repair service, i.e., large appliance C C O Resource extraction, commercial subsurface, i.e., mining C C C Resource extraction, commercial surface, i.e., gravel C C C Resource extraction, commercial timber harvesting C C Restaurant, food service, catering, brew pub O O O O O C Rooming or boarding house O/P O/P O/P O/P Roving Vendor P P P P P P P P P P P Salvage—auto, wrecking, scrap, junkyard C Sawmill or lumbermill C C School, college C C C 117 Created: 2024-02-01 15:08:57 [EST] (Supp. No. 27-1) School, public/private elementary/secondary C C C C C C C C C School, vocational C O O C O C Seafood processing, i.e., canning, rendering C C C C Shop, i.e., welding, sheetmetal, machine, steel fab. C C O Shop, i.e., wood, signs, cabinet, upholstery C C O C O Shopping center (mall) C C Solid waste disposal, i.e., baler, transfer, landfill C C C Storage, container P P P P O P Storage, explosives P Storage, outdoor, yard, material/equipment C O O C Storage, self service O O O O Storage, warehouse and distribution O O O C C Studio, radio/television C O O O O C Tanks, aboveground associated with service station C C O Taxidermy O O O O O Terminal, i.e., bus, truck, freight O C O C Terminal, marine/boat passenger O C O O C Theater, concert, movie O O Tool/equipment rental O O Temporary structure P P P P P P P P P P 118 Created: 2024-02-01 15:08:57 [EST] (Supp. No. 27-1) Utility facility, public electric, water, sewer, etc. C C C C C C O O O O O O Vehicle impound lot O O Vending machine repair, storage O O C Veterinary hospital C C C Wind Energy Conversion Systems (WECS) O O O O O O O O O O O O O (Ord. 94-25; Ord. 95-13; Ord. 95-17; Ord. 96-05; Ord. 96-10; Ord. 96-16; Ord. 97-13; Ord. 98-06; Ord. 98-09; Ord. 99-01; Ord. 99-13, § 2, 1999; Ord. No. 99-10; Ord. 2000-12; Ord. 2001-03; Ord. 2003-08; Ord. 2007-008, § 1, 2007; Ord. No. 2009-002, § 1; Ord. No. 2010-004, § 2; Ord. No. 2012-002, § 1; Ord. No. 2014- 002, § 1; Ord. No. 2014-004, § 1; 2015-001, § 1; Ord. No. 2018-002, § 4; Ord. No. 2018-004, § 1; Ord. No. 2019-007, § 1, 3-26-2019; Ord. No. 2020-012, § 1, 10- 12-2020; Ord. No. 2022-002, § 2, 1-24-2022; Ord. No. 2022-016, § 2, 1-9-2023; Ord. No. 2023-019, § 1, 7-10-2023) Editor's note(s)—Ord. No. 2018-002, § 4, adopted May 14, 2018, renumbered § 15.10.225 to 15.10.226, as herein set out. 119