11625 AIRPORT RD SONRISE CHRISTIAN CENTER 2022-08-25

Wetland name or number A RIVERINE AND FRESHWATER TIDAL FRINGE WETLANDS Hydrologic Functions - Indicators that site functions to reduce flooding and stream erosion R 4.0. Does the site have the potential to reduce flooding and erosion? R 4.1.Characteristics of the overbank storage the wetland provides: Estimate the average width of the wetland perpendicular to the direction of the flow and the width of the stream or river channel(distance between banks). Calculate the ratio: (average width of wetland)/(average width of stream between banks). Elf the ratio is more than 20 points=9 6 Olf the ratio is 10-20 points=6 Off the ratio is 5-<10 points=4 El If the ratio is 1-<5 points=2 If the ratio is< 1 points= 1 R 4.2. Characteristics of plants that slow down water velocities during floods: Treat large woody debris as forest or shrub. Choose the points appropriate for the best description(polygons need to have>90%cover at person height. These are NOT Cowardin classes). El Forest or shrub for>1/3 area OR emergent plants>2/3 area points=7 ElForest or shrub for>1/10 area OR emergent plants>1/3 area points=4 Plants do not meet above criteria points=0 Total for R 4 Add the points in the boxes above 13 Rating of Site Potential If score is: 1 12-16= H 6-11= M _0-5=L Record the rating on the first page R 5.0. Does the landscape have the potential to support the hydrologic functions of the site? R 5.1. Is the stream or river adjacent to the wetland downcut? Yes=0 No= 1 1 R 5.2. Does the up-gradient watershed include a UGA or incorporated area? Yes=1 No=0 1 R 5.3. Is the up-gradient stream or river controlled by dams? Yes=0 No=1 1 Total for R 5 Add the points in the boxes above 3 Rating of Landscape Potential If score is: ✓ 3=H 1 or 2= M 0= L Record the rating on the first page R 6.0.Are the hydrologic functions provided by the site valuable to society? R 6.1. Distance to the nearest areas downstream that have flooding problems? Choose the description that best fits the site. QThe sub-basin immediately down-gradient of the wetland has flooding problems that result in damage to human or natural resources(e.g., houses or salmon redds) points=2 2 Surface flooding problems are in a sub-basin farther down-gradient points=1 ri No flooding problems anywhere downstream points=0 R 6.2. Has the site been identified as important for flood storage or flood conveyance in a regional flood control plan? Yes=2 No=0 Total for R 6 Add the points in the boxes above 2 Rating of Value If score is: ✓ 2-4= H _1= M _0=L Record the rating on the first page Wetland Rating System for Western WA: 2014 Update 8 Rating Form—Effective January 1,2015