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HomeMy WebLinkAboutM_Shoreline_Tracking_Worksheet_180320_v1DEPARTMENT OF COMMUNITY AND ECONOMIC DEVELOPMENT 1 K:\project\32400\32499E\ProjectDocs\Permits\Shoreline Exemption\Shoreline Tracking Worksheet.docx Rev: 08/2016 SHORELINE TRACKING WORKSHEET Planning Division 1055 South Grady Way, Renton, WA 98057 Phone: 425-430-7200 | www.rentonwa.gov The City of Renton is required by the Washington State Department of Ecology to track and evaluate the effectiveness of the Shoreline Master Program at achieving no net loss of shoreline ecological functions with respect to shoreline projects. The City will use shoreline development tracking information to prepare a Shoreline Master Program report every eight years to comply with the Shoreline Management Act requirements. SHORELINE STABILIZATION 1. Is there currently a bulkhead on your site?  Yes No; If yes, fill out table below. If no, see “Site Conditions”, Section 2 below. What Type of Materials is Your Bulkhead Made of? Linear Feet of Hard Materials: Linear Feet of Soft Materials: Examples of Types of Bulkheads: Hard (e.g. rocks, wood); Soft (e.g. sand, plants); Combination-soft materials at the water with hard materials further inland, or a combination of hard and soft materials at the water. SITE CONDITIONS 2. List the size (in square feet) and type of all structures (1st floor only) on your property (e.g. 2,000 sq. ft. house, 125 sq. ft. greenhouse). The structures are two trestle bridges spanning 60 linear feet (LF) and 406 LF. The bridges are supported by transverse bents. The May Creek trestle is supported by 5 timber pile bents and the Ripley Lane trestle is supported by 27 timber pile bents. Each bent has 5 round piles per bent that vary in size from 12-14 inches in diameter. Area of combined bents is approximately 150 square feet. 3. List distance (in feet) from the water to the closest point of each structure. List each building separately (e.g. shed, dock, carport). The May Creek trestle is approximately 880 feet from the waters of Lake Washington. The Ripley Lane trestle is approximately 200 feet from the water. 2 K:\project\32400\32499E\ProjectDocs\Permits\Shoreline Exemption\Shoreline Tracking Worksheet.docx Rev: 08/2016 4. List the size (in square feet) and type of all impervious surfaces (e.g. driveway, parking area, walkway, patio). The May Creek trestle new bridge decking will be constructed of precast concrete panels and will create approximately 840 square feet of new, non-pollution generating impervious surfaces. The bridge deck will span approximately 60 feet, at approximately 15 feet above the May Creek channel. The Ripley Lane trestle new bridge decking will be constructed of precast concrete panels and will create approximately 4,872 square feet of new, non -pollution generating impervious surfaces. The bridge deck will span approximately 406 feet at approximately 15 feet above the ground surface elevation. 5. List distance (in feet) from the water to the closest point of each impervious surface (hard surface). The new bridge deck for the May Creek trestle will be approximately 890 feet from the water. The new bridge deck for the Ripley Lane trestle will be approximately 200 feet from the water. 6. Describe the existing vegetation within 100 ft. of the waterline. Estimate the amount (in squ are feet) of native vegetation. Grass and ornamental plantings (e.g. plants requiring care or grown for decorative purposes) should not be counted. Residential homes, landscaped lawns and ornamental plantings are located within 100 feet of the waterline near the May Creek trestle and the Ripley Lane; there is no other vegetation within 100 feet. Vegetation within the immediate vicinity of the May Creek trestle includes red alder (Alnus rubra), spiraea (Spiraea douglasii), Himalayan blackberry (Rubus armeniacus), field horsetail (Equisetum arvense), and reed canarygrass (Phalaris arundinacea). Vegetation within the immediate vicinity of the Ripley Lane trestle includes red alder, reed canarygrass, dogwood (Cornus sericea), field horsetail, creeping nightshade (Solanum dulcamara), and Himalayan blackberry. Some shrubs and grasses within the right of way of both trestles may be impacted by a small crane or excavator. No vegetation within the vicinity of the trestles is planned for removal. 7. Will the project require any added fill? If so, how many cubic yards will be added: No fill or excavation is anticipated to take place for any part of the trestle repair and retrofitting. Pilings are to remain in place. All proposed repair and replacement work will occur to existing trestle structures and no change in the bridge footprint will occur. 3 K:\project\32400\32499E\ProjectDocs\Permits\Shoreline Exemption\Shoreline Tracking Worksheet.docx Rev: 08/2016 IN WATER AND OVER WATER STRUCTURES 8. Are there any in or over water structures on your site (e.g. docks, floats, bridges, mooring piles, boatlifts)?  Yes  No; If yes, fill out the table below. Describe the in- and over-water structures on your site The city property includes docks and other park-related structures. Type (e.g. dock, float, bridge, mooring pile, boat lift, etc.) Surface Area (in square feet, if applicable) Light Penetrating Materials (the percentage of the surface area that is made of material that allows light to reach the water) Existing structures to remain Two timber trestle bridges (May Creek trestle, Ripley Lane trestle) Ripley Lane trestle bridge deck is approximately 5,300 square feet. May Creek trestle bridge deck is approximately 840 square feet. Existing structures that will be removed No structures are to be removed. Proposed structures Proposed project includes repairs and retrofits of existing structures. No new structures are proposed.