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.〕 | length_imperial = 29 | length_round = 0 | length_note = 〔 | watershed_imperial = 78 | watershed_round = 1 | watershed_note = | discharge_location = | discharge_round = 2 | discharge_imperial = | discharge_note = | discharge_min_imperial = 0 | discharge_max_imperial = | discharge1_location = | discharge1_imperial = | discharge1_note = | map = | map_size = | map_caption = | map1 = Oregon Locator Map.PNG | map1_size = 300 | map1_caption = Location of the mouth of Abiqua Creek in Oregon | map1_locator = Oregon | commons = }} Abiqua Creek ( ) is a tributary of the Pudding River in the U.S. state of Oregon. The creek originates near Lookout Mountain in the foothills of the Cascade Range in the northwestern part of the state. It flows northwest for about to its confluence with the Pudding, about west of Silverton, in the Willamette Valley. About north of Silverton, the Pudding River meets the Molalla River, which meets the Willamette River less than later near Canby.〔 The creek is the main source of drinking water for Silverton, which operates a diversion dam upstream. The city, the Pudding River Watershed Council, and the Oregon Department of Fish and Wildlife are working to improve fish passage on the creek and are studying the effectiveness of the dam's fish ladder. Abiqua Creek has historically supported the largest steelhead spawning populations in the Pudding River watershed. ==Course== The creek begins in the Abiqua Basin about north-northeast of Silver Falls State Park and flows down a canyon. Ridges on the north and south separate its watershed from Silver Creek on the south and Butte Creek on the north. Named tributaries include Sweet Spring Creek, entering from the left about river mile (RM) 26 or river kilometer (RK) 42; Wildcat Creek, from the left about later; Trinity Falls Creek from the right about from the mouth, and over the next Bucket Creek from the right, Homestead Creek from the left, Johnson Creek from the right, and Goober Creek from the right, in that order.〔 Just below Goober Creek near Santiam State Forest, the stream plunges over Abiqua Falls. The United States Geological Survey (USGS) places the falls at coordinates at an elevation of above sea level. Downstream of the falls, the creek runs close by Milk Ranch Road and then Abiqua Road, both on the right. At about RM 12 (RK 19), Abiqua Creek receives Hammond Creek, and shortly thereafter Echo Creek, and about later, Powers Creek, all from the left.〔 About from the mouth, the stream passes under Oregon Route 213 between Silverton and Molalla, and about from the mouth it goes under Oregon Route 214 between Silverton and Mount Angel. Shortly thereafter, it passes under Gallon House Road, which is carried by the covered Gallon House Bridge. It crosses under Mount Angel Highway before reaching the Pudding River, by river from its confluence with the Molalla River.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Abiqua Creek」の詳細全文を読む スポンサード リンク
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