Location.--Latitude 46°47'25", Longitude
122°44'34", in NW 1/4 NW 1/4 Section 18, Township 15 North,
Range 1 East, in Thurston County, Hydrologic Unit 17100103, on
right bank 0.7 mile downstream from Bloody Run Creek, 1.2 mile
downstream from Skookumchuck Dam, 1.2 miles northeast of Centralia, and
at river mile
20.7. Drainage
area is 65.9 mi2. Datum of
the gage is NAVD of 1988, prior to May 3, 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 has not
established a Flood
Stage for this station. Thurston County has Flood
Information for this gage.
Funding for this site is provided by the
cooperators / programs below:
The 15-minute precipitation data for this station are
temporary and will only be displayed for 120 days. Time
series of 15-minute or cumulative daily values will NOT be
available for retrieval following the 120-day display period.
Although the instrumentation is calibrated at least once/year,
the temporary classification means that documented routine
inspections and other quality assurance measures are not
performed that would make the data acceptable for archival,
retrieval, or future use in general scientific or interpretive
studies.
Gage height datum conversion to
the NAVD88 datum for this streamgage was completed on May 3, 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 320.87 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.