USGS Gage Name
|North Fork Tolt River near Carnation (external link)
||2:15 AM, 8/31/2014
|South Fork Tolt River near Carnation (external link)
||2:30 AM, 8/31/2014
|Tolt River near Carnation (external link)
||2:15 AM, 8/31/2014
This data was requested from USGS at 8/31/2014 3:12:12 AM.
The next request for USGS data is expected in approximately 8 minutes from when this page was loaded.
c.f.s. = cubic feet per second.
King County provides funding to the United States Geological Survey (USGS) to support the operation and maintenance of river and stream gages and related systems. The term "gage" is defined as an instrument for measuring or testing. USGS uses the term "streamgage" to describe their equipment that obtains estimates of the amount of water flowing in streams and rivers. More information about USGS streamgages
|Flood Phase Information
||Flow at Tolt River gage near Carnation
||San Souci area homes may be inaccessible; 353rd Ave NE may experience high water depths and
velocities where side channels cross the road. Levee on south bank between Snoqualmie Valley
trail bridge and Highway 203 bridge near 323rd Pl SE may experience seepage.
||Increased water depth and velocity over 353rd Ave NE in San Souci area; water across
Tolt River Rd NE in vicinity of San Souci neighborhood. Increased seepage and potential
backyard flooding at levee on south bank between Snoqualmie Valley trail bridge and Highway 203 bridge near 323rd Pl SE.
||Levees may overtop near Carnation. Flow from seepage at levee on south bank between
Snoqualmie Valley trail bridge and Highway 203 bridge near 323rd Pl SE may cross NE 32nd St. Channel changes may
occur between upstream extent of Tolt River Rd NE/361st Ave NE and eastern boundary of Carnation.
|Recent High Flow Data:
Tolt River near Carnation
|December 12, 2010
|January 8, 2009
|November 12, 2008
|November 6, 2006
The National Weather Service also provides access to provisional gage data:
Tolt River near Carnation (external link)
More Tolt River Flood Information
Flood Photo Viewer
Video of the Election Day Flood, November, 2006:
phase 4 flood, November, 2006
Lower Tolt River Floodplain
Snoqualmie River Flooding Information
» Return to the The Flood Warning System
» Visit King County Flooding Services