Rivers in California

Corte Madera Creek at Ross

Marin County, CaliforniaNWS CMDC1USGS 11460000Monterey office

Below flood stage
4.20ftStage

Observed Tue, Sep 22, 12:30 AM PDT

Flood stage
17.00 ft
Record crest
22.59 ft2005

Open the live map with the river flood outlook

Flood stages and impacts

CategoryStage
Major flood23.00 ft
Moderate flood20.00 ft
Minor flood17.00 ft
Action15.00 ft
  1. 23.00 ftMajor Flood Stage. (Stage of 25.5 for co-located County ALERT stream gage.) Major flood inundation in town; travel along local roadways likely impossible and very dangerous. Major damage to local businesses and homes. Water is above guard rail on Lagunitas Road bridge.
  2. 20.00 ftModerate Flood Stage. (Stage of 22.5 for co-located County ALERT stream gage.) Lagunitas Road bridge is overtopped, and 1 to several feet of flood waters inundate local businesses, residences, and roadways.
  3. 17.00 ftMinor Flood Stage. (Stage of 19.5 feet for co-located County ALERT stream gage.) Backwatering begins at Lagunitas Road bridge, with minor flooding near Town Hall and Fire Station. NWS will issue a Flash Flood Warning if not yet already issued.
  4. 15.00 ftAction Stage. (Stage of 17.5 for co-located County ALERT stream gage.) Water level is 2 feet below Lagunitas Road bridge soffit, and less than 2 feet below local storm drain inlets on adjacent roads and parking lots. NWS will issue a Flash Flood Watch if not yet already issued.

Crest history

16 crests on NOAA’s list since 1951.

#DateStage
1December 31, 200522.59 ft
2January 4, 198219.81 ft
3February 17, 198618.07 ft
4December 20, 196917.97 ft
5February 3, 199817.50 ft
6January 21, 196717.44 ft
7January 20, 199317.04 ft
8March 13, 198316.89 ft
9December 3, 195116.65 ft
10January 5, 196616.62 ft
11December 7, 195216.59 ft
12January 11, 198016.45 ft
13April 2, 195816.23 ft
14January 16, 197316.16 ft
15February 13, 196216.01 ft
16March 21, 197515.97 ft

Most recent crests

  • December 31, 2005: 22.59 ft
  • February 3, 1998: 17.50 ft
  • January 20, 1993: 17.04 ft
  • February 17, 1986: 18.07 ft
  • March 13, 1983: 16.89 ft
  • January 4, 1982: 19.81 ft
  • January 11, 1980: 16.45 ft
  • March 21, 1975: 15.97 ft
  • January 16, 1973: 16.16 ft
  • December 20, 1969: 17.97 ft

Nearby

Upstream, downstream and the gauges around this one.

What this means

Forecasts by the California Nevada River Forecast Center. Graphical forecasts are not available during times of high water, forecast crest information can be found in the local WFO web page.

Sources

Stage, flood stages, impacts and crest history from NOAA’s National Water Prediction Service. Streamflow and the daily record from the U.S. Geological Survey.