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Titlebook: Bioengineering Case Studies; Sustainable Stream B Wendi Goldsmith,Donald Gray,John McCullah Book 2014 Springer Science+Business Media New Y

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楼主: 爆发
发表于 2025-3-27 00:13:20 | 显示全部楼层
Project #10: Asaayi Lake. A narrow valley over 1,400 ft long with a tributary drainage area to Lake Asaayi of 200 acres. The original, natural grade in the valley was 6 %. The total runoff flowing down the valley was approximately 800 cfs (based on a 25-year storm condition).
发表于 2025-3-27 01:48:44 | 显示全部楼层
Project #16: Pacifica. Steep hillside with colluvium-filled bedrock hollow (see Fig. 1). These hollows are a fairly common geomorphic feature of the coast ranges in California. The hollows can become saturated during storm events thereby causing pore water pressures to rise and triggering slope failures and debris flows.
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Project #11: Hollywood Hillse Hollywood Hills [below the famous landmark Hollywood sign]. Total site acreage including watershed area is some 200 acres. The fill disposal, facilities locations and mitigation sites covered about 40 acres. Only one of the canyon fills, Area “F,” is described herein (see Fig. 2).
发表于 2025-3-27 18:19:10 | 显示全部楼层
Project #12: Geyserville in the river vary seasonally, attaining values as high as 10,000 cfs during winter floods. The soils at the site consist of riverbed alluvium and floodplain deposits. These soils are well drained and not subject to ponding. They are mainly cohesion-less and vulnerable to erosion and scour.
发表于 2025-3-27 23:08:34 | 显示全部楼层
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发表于 2025-3-28 10:16:32 | 显示全部楼层
Project #15: Staffordream in the drainage basin flows northward through the town of Stafford and discharges into the Eel River. The stream channel drops about 1,745 ft in elevation, in its 1-mile length. The steepest stream gradient is about 67 % (33°) near the head of the basin.
发表于 2025-3-28 11:54:20 | 显示全部楼层
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