Английская Википедия:Fir Creek (Bull Run River tributary)

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Шаблон:Infobox river

Fir Creek is a tributary, about Шаблон:Convert long, of the Bull Run River in the U.S. state of Oregon. Part of the system that provides drinking water to the city of Portland, it flows generally northwest through a protected part of the Mount Hood National Forest in Clackamas and Multnomah counties. It joins the Bull Run River at the upper end of Bull Run Reservoir 1, about Шаблон:Convert from the larger stream's confluence with the Sandy River.

Course

The creek arises in the Mount Hood National Forest in northern Clackamas County near its border with Multnomah County. The stream flows north, crossing the border almost immediately and entering Multnomah County. Turning west, it receives an unnamed tributary from the right before turning gradually northwest. It passes under Forest Road 1211 and by a United States Geological Survey (USGS) stream gauge Шаблон:Convert from the mouth. The creek joins the main stem Bull Run River near the upper end of Bull Run Reservoir 1, about Шаблон:Convert from where the river joins the Sandy River.[1][2]

Discharge

Since 1975 the USGS has monitored the flow of Fir Creek at a stream gauge Шаблон:Convert from the mouth. The average flow between then and 2009 was Шаблон:Convert. This is from a drainage area of about Шаблон:Convert. The maximum flow recorded during this period was Шаблон:Convert on November 25, 1999. The minimum was Шаблон:Convert on September 5–7, 2003.[3]

Watershed

The Bull Run River watershed, which includes Fir Creek, drains Шаблон:Convert.[4] The basin, which is the main source of Portland's drinking water, is largely restricted to uses related to water collection, storage, treatment, and forest management. The Fir Creek basin of about Шаблон:Convert amounts to about 4 percent of the total Bull Run River watershed,[3] which is managed by the Portland Water Bureau and the United States Forest Service.[5]

See also

References

Шаблон:Reflist

Works cited

  • Portland Water Bureau (2007). "Landscape Conditions", Chapter 4 of Current Habitat Conditions in the Habitat Conservation Plan Area. Portland, Oregon: Portland Water Bureau. Retrieved March 9, 2010.

External links

Шаблон:Portland, Oregon, watersheds

Шаблон:Authority control

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  1. ↑ Ошибка цитирования Неверный тег <ref>; для сносок DeLorme не указан текст
  2. ↑ Шаблон:Cite web
  3. ↑ 3,0 3,1 Шаблон:Cite web Stated watershed size includes only that part of the watershed above river mile 0.6 (river kilometer 1.0).
  4. ↑ Portland Water Bureau, "Landscape Conditions", p. 52
  5. ↑ Шаблон:Cite web
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