Location.--Latitude 46°37'33", Longitude
123°06'02", in NE 1/4 SE 1/4 Section 7, Township 13 North,
Range 3 West, in Lewis County, Hydrologic Unit 17100103, on
right bank at railroad bridge, 2.0 miles downstream from South Fork
Chehalis River, 2.0 miles west of Adna, and at river mile
86.0. Drainage
area is 340 mi2. Datum of
gage is NAVD of 1988. Prior to May 8, 2018, datum of the gage was NVGD
of 1929.
Maps.--Locate
this station on a
map of the basin (PDF).
Flood Stage.--The National Weather Service has not
established a Flood
Stage for this station. Lewis County has Flood Phase information for this
gage.
Funding for this site is provided by the
cooperators / programs below:
Station Notes
Gage height datum conversion to
the NAVD88 datum for this streamgage was completed on May 8, 2018.
All reported gage heights and those associated with discharge
measurements and stage-discharge ratings have been converted and
are consistent with elevations based on the NAVD88 datum. A
conversion factor of 3.40 ft was used to convert the old gage
heights to the currently reported instantaneous gage height,
discharge measurement gage heights, and stage-discharge rating
points.
