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New: Click on a gage name for graph and additional data.

USGS Gage Name

Time, Date

Stage
(feet)

Flow
(c.f.s.)

Flow Change
(c.f.s./hr)

Cedar River near Landsburg 8:00 PM, 11/16/2019 1.48 448 0
Cedar River at Renton 8:15 PM, 11/16/2019 8.73 442 0

* Gage data currently unavailable.

Notes:

This data was requested from USGS at 11/16/2019 8:45:19 PM.

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
Phase Flow at Cedar River gage near Landsburg Description Condition
1 1,800 c.f.s. Internal Alert  
2 2,800 c.f.s. Minor Flooding Lower Dorre Don Way SE may overtop and close.
3 4,200 c.f.s. Moderate Flooding Roads may overtop and close including, SE Jones Road near 156th Pl. SE, SR 169 near the intersection of Cedar Grove Road SE, SE 184th St, Byers Road SE, 216th Ave SE, SE 193rd St, SE 207th St, Lower Dorre Don Way SE, Dorre Don Way SE, and SE 238th St. Several of these roads provide access to several neighborhoods where residents may become trapped and require evacuation.
4 5,000 c.f.s. Severe Flooding Roads may overtop and close including, SE Jones Road near 156th Pl. SE, SR 169 near the intersection of Cedar Grove Road SE, SE 184th St, Byers Road SE, 216th Ave SE, SE 193rd St, SE 197th Pl, SE 206th St, SE 207th St, SE Bain Road, Dorre Don Ct SE, Lower Dorre Don Way SE, Dorre Don Way SE, SE 238th St, and 244th Ave SE. Several of these roads provide access to several neighborhoods where residents may become trapped and require evacuation. Deep and fast flows can create dangerous conditions throughout the floodplain.
Cedar River gage map - flooding
Recent High Flow Data
High Flow Event Cedar River near Landsburg Cedar River near Renton
January 17-18, 2011 4,710 c.f.s. 5,870 c.f.s.
January 8, 2009 7,870 c.f.s. 9,390 c.f.s.
November 7, 2006 4,670 c.f.s. 6,090 c.f.s.
February, 1996 5,860 c.f.s. 7,520 c.f.s.
November, 1995 6,580 c.f.s. 7,650 c.f.s.
November, 1990 10,800 c.f.s. 10,600 c.f.s.

The National Weather Service also provides access to provisional gage data:

Cedar River near Landsburg (external link)

Cedar River at Renton (external link)

More Cedar River Flood Documentation

NEW: Cedar River flood level viewer

Flood Photo Viewer

Other Flood-related Information

» Return to the The Flood Warning System Page
» Visit King County Flooding Services
» See other Cedar River Topics