Location.--Latitude 46°37'13", Longitude
122°56'38", in SW 1/4 SW 1/4 Section 9, Township 13 North,
Range 2 West, in Lewis County, Hydrologic Unit 17100103, on
left bank 75 ft downstream from bridge, 3.0 miles southeast of
Chehalis, and at river mile
4.1. Drainage
area is 155 mi2. Datum of
the 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).
Additional Data and Information.-- Latest shifted
rating.
Flood Stage.--The National Weather Service Flood
Stage for this station is 202.5 feet. 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 191.94 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.
Boating safety tips