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mrosmon ~ meQmmenn uonnrom <br />S~ptember 16, 1987 <br />Page two <br /> <br />II. <br /> <br />III. <br /> <br />IV. <br /> <br />Berm Construction <br /> <br />A. At minimum a 2-2½'/"earthen berm with a top width of 2-3' should be <br /> shaped at the top of the river bank area. It should conform to the <br /> natural bermed-landscape that now exists. (See DNR specs for plantings <br /> to be used.) Side slopes should be 3:1. <br />B. On the north, northeast bank area adjacent to. the house, the top crown <br /> of the existing bank should be elevated and moved out to align diagon- <br /> ally approximately with the corner of the deck to high bank area. This <br /> is to insure runoff to the south rather than the backyard area. <br /> 1.) ~e face of this slope should be sodded and staked (3-4" of topsoil <br /> should.be applied to all areas that are to be sodded). <br /> 2.) The backyard area should be sodded. <br />C. A temporary berm should be shaped at the northwest corner of the house, <br /> 2-3' high with a top width of 3' and side slopes of 3:1. This is to <br /> direct all roof runoff and impervious surface runoff in a northwest <br /> direction to existing lowland area. <br /> 1.) ~e downward face of the berm should be mulched and netted. Entire <br /> area on north side of~house (excluding constructed swale area) should <br /> be mulched. (See appendix B.) <br /> <br />Grassed Diversion (north side of house) <br /> <br /> A grassed diversion channel should be shaped extending from backyard <br />. area ito~ilow lying natural area on t, he north side of,the house. This <br /> channel should: <br />I.) Have a 6-12" drop 'from lowest point in backyard area to flow point <br /> in natural low area on north side. (Regency Homes will do elevation <br /> shots to determine proper drop on channel). <br />2.) Channel should be a shallow 6-12" depth flat bottom V shape, and have <br /> a minimum of 2-2.5' bottom width. Side slopes should be no greater <br /> then 3:1. (The shaping of the channel can be aesthetically done <br /> to conform to natural contours of the lot.) <br />3.) The east bank of the channel should be sodded and staked up to <br /> natural vegetation line, <br />4.) The west bank of channel and entire channel area should be sodded and <br /> staked, sod should extend 2' beyond ~op slope and should abut the <br /> mulching and netting procedure on north side of house. <br /> <br />Rain Gutter Installation <br /> <br />A. South side of house: <br /> 1,) The fascial area to be guttered on the north side of deck should <br /> be connected :o gutter system on back side cf house to exit en the <br /> north side of house only. <br />B. West side of house: <br /> 1.) Back side of house should have gutter along entire length of house <br /> to be outleted on northeast corner of house. Drop pipe should have <br /> a wide"bas~ for diffusing water flow or an extension'pipe into the <br /> diversion channel also with a diffusion base. <br /> <br /> <br />