Snoqualmie River

Flood on Snoqualmie River, a few miles below the falls (December 2004)

Course of the Snoqualmie River

Middle Fork Snoqualmie River at North Bend. The peak in the background is Mt Washington.

Template: Infobox River / BILD_fehlt

Template: Infobox River / BILD_fehlt

The Snoqualmie River has a northern, central and southern arm as tributaries, all of which drain the west side of the Cascade Mountains in the vicinity of North Bend and flow together at Snoqualmie above the Snoqualmie Falls. Below the Falls the Snoqualmie River flows northward through fertile farmland and passes through the cities have Fall City, Carnation, Duvall and before it connects at Monroe with the Skykomish River to the Snohomish River. Other tributaries are the Tolt River at Carnation and the Raging River near Fall City.

Waterfalls

The most famous waterfall Washington with more than one million visitors annually Snoqualmie Falls with a height of almost 82 m, but the river and its source arms have some more remarkable waterfalls. The approximately 10 m high Fantastic Falls and the 61 m high Kanim Falls lie on the North Fork. On the Middle Fork is located at a height of almost 46 m Nellie Falls. The southern branch has with Twin Falls ( 41 m ), Middle Twin Falls, Upper Twin Falls, Weeks Falls, Upper Weeks Falls, Denny Camp Falls, Franklin Falls ( 41 m ) and the fall -into- the-Wall Falls ( about 7 m) over a series of waterfalls.

The title scenes of the television series Twin Peaks were filmed partly at the Snoqualmie Falls and the upper reaches of the river.

Kayaking, canoeing and rafting

The Snoqualmie River has some sections that are suitable for kayaking and rafting. The river is classified between classes II and V .

Hydrographic

The United States Geological Survey maintains the Snoqualmie River, its source arms and the various tributaries total of a dozen levels in real time to monitor the water level can.

The average annual runoff volume at the level in Carnation 1930-2006 was 105 m³ / s The highest observed value occurred on 24 November 1990 and reached about 1850 m³ / s, the lowest value was on 21 August 1945, almost 7 m³ / s measured.

Waters

The Snoqualmie River is prone to flash floods, which occur several times a year and farmland, roads and low-lying flood. During extreme flooding, the access roads to Carnation and Duvall are impassable. Happened the last two times in 2006 and before 1990.

By the Army Corps of Engineers, a controversial project was completed in 2005, thereby reducing the effects of flooding were reduced to Snoqualmie, by above the falls, the river bed was directly widened.