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Cedar River Flooding Information
USGS gage data, map, and alert phases, and recent high flows

USGS Gage Name	Time, Date	Stage (feet)	Flow (c.f.s.)	Flow Change (c.f.s./hr)
Cedar River near Landsburg (external link)	1:00 AM, 5/20/2013	2.35	958	0
Cedar River at Renton (external link)	1:15 AM, 5/20/2013	9.62	990	0
Notes: This data was requested from USGS at 5/20/2013 1:12:04 AM. 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	Jones Rd near 156th Place SE may overtop and close.
3	4,200 c.f.s.	Moderate Flooding	Lower Dorre Don Way and Byers Rd SE may overtop and close. These roads provide access to several neighborhoods where residents may become trapped and require evacuation.
4	5,000 c.f.s.	Extreme Flooding	Additional roads may overtop and close including: Cedar Grove Rd SE, Maxwell Rd SE and SR-169 near the intersection with Cedar Grove Rd SE. Dead end streets may overtop and close including: Jan Rd SE (SE 197th St), SE 203rd St, SE 206th St, and SE 207th St. Fast and deep flows can create dangerous conditions throughout the floodplain.