14241100 - NORTH FORK TOUTLE RIVER AT KID VALLEY, WA

Latitude (degrees, minutes, and seconds) ......  462155 
Longitude (degrees, minutes, and seconds) .....  1223740
State Code ....................................  53
County Code ...................................  015
County Name ...................................  Cowlitz
Basin Name ....................................  Lower Cowlitz
Hydrologic Unit Code ..........................  17080005  
Drainage Area (square miles) ..................  284.00*
Gage Datum (feet, NGVD of 1929) ...............	 575.8   

Location ...................... NE/SW Sec.12, T.10 N, R.1 E,
				on right bank at downstream side
				of bridge on State Highway 504,
				0.8 mi southwest of Kid Valley,
				and 6.9 mi upstream from confluence
				with South Fork


---Period(s) of Record----
June 1980 to September 1994


 * Approximately 21 sq.mi. is noncontributing.
   Prior to July 7, 1981, approximately 40 sq.mi. was noncontributing

Site History and Remarks

The volcanic blast and debris avalanche from the eruption of Mount St. Helens inundated the upper portion of the N.F.Toutle River with sediment on May 18, 1980. As a result, sediment yields at this station have increased from the pre-eruption levels. (Dinehart,1987)

The data-collection reach extends from the gage, which is located at the Highway 504 bridge, to a cableway about 290 m downstream. The cableway is used for measuring streamflow and collecting samples. (Childers et.al.,1988)

Vertical-profile data were collected at the cableway in 1982 and 1986, which is 660 ft downstream from the gaging station. (Dinehart,1987)

Reach Description

The channel has sand-and-gravel banks and streambed (Dinehart,1987).

The channel reach is straight from 500 m upstream to 100 m downstream of the cableway, but it bends sharply to the right downstream from the reach. The channel is normally braided when the discharge is low (below about 15 cubic meters/second); however, when discharge is high, flow is confined to a single channel. The unstable streambed typically consists of sediments ranging in size from sand to cobbles. Stream banks generally are stable and lined with large tree stumps and saplings. At the bridge, bedrock is exposed along the left bank and the right bank has eroded significantly since 1980. (Childers et.al.,1988).

Location Map

Return to:
[ Mount St. Helens Hydrologic Stations - Menu] ...
[ Mount St. Helens Hydrology - Menu] ...
[ Mount St. Helens Monitoriing - Menu] ...
[ Mount St. Helens - General Menu] ...