Corte Madera C a Ross CA

Marin County, California · USGS gauge 11460000 · NWS CMDC1 · California river levels

Is Corte Madera C a Ross CA flooding right now?

Corte Madera C a Ross CA measured 4.17 ft on 2026-09-11 00:30:00 UTC. That observation was 12.8 ft below its 17 ft flood stage. This is the latest available reading, not a guarantee of current conditions.

Gauge height
4.17 ft
as of 2 hours ago
Streamflow
0 cfs
data refreshed 2 min ago

Minor flooding here begins at 17 ft, with major flooding at 23 ft. The highest crest on record was 22.59 ft on Sat, Dec 31, 2005.

Flood stages at this gauge

CategoryStageCurrent distance
Action15 ft10.8 ft below
Minor flood17 ft12.8 ft below
Moderate flood20 ft15.8 ft below
Major flood23 ft18.8 ft below

New to these numbers? What does flood stage mean? · How to read a river gauge · Why is the river rising?

Highest crests on record

StageDate
22.59 ft2005-12-31
19.81 ft1982-01-04
18.07 ft1986-02-17
17.97 ft1969-12-20
17.5 ft1998-02-03

Last 7 days

Past 7 days · 4.16–4.47 ft

Nearby gauges

GaugeDistanceCounty
Redwood C a Hwy 1 Bridge a Muir Beach CA6.8 miMarin County
Novato C a Novato CA10.1 miMarin County
Lagunitas C a Samuel P Taylor State Park CA10.7 miMarin County
Olema C a Vedanta Bridge a Olema CA13.5 miMarin County
Lagunitas C near Pt Reyes Station CA14.8 miMarin County
Provisional data: Real-time readings are provisional and subject to revision by the USGS — sensors can be affected by ice, debris, or equipment malfunction. Do not rely on this site for decisions involving personal safety; follow official guidance from the National Weather Service and local authorities.

Sources: USGS monitoring location · NWS gauge & forecast