Carson River near Genoa

Highest listed crest 17.53 ftFlood stage 15.5 ft5 crests since 2005

The Carson River near Genoa crested above flood stage 5 times among the 5 crests the National Weather Service lists from 2005 to 2023. The highest, 17.53 ft on December 31, 2005, was moderate flooding, 2.03 feet above flood stage. 4 other gauges on the Carson River crested above flood stage within a week of it, 1 at its own highest listed crest.

The gauge

Highest listed crest: 17.53 ft; December 31, 2005; 12,000 cubic feet per second
Flood stage: 15.5 ft; Major flooding from 19.0 ft
Crests at major: 0; 5 above flood stage
Most recent flood crest: March 10, 2023; 16.19 ft, minor flooding
Location: Douglas County; Near South Lake Tahoe (9.9 mi), Carson City (10.7 mi)
Identifiers: NWS CRGN2; USGS 10310407; out of service

Flood stages

The thresholds the National Weather Service uses for this gauge today, and how many listed crests reached each.

Flood categories, Carson River near Genoa

Action stage	14.0	0	—	The level at which the NWS or its partners begin to take action
Flood stage (minor)	15.5	3	Mar 10, 2023	Minimal or no property damage, but possibly some public threat
Moderate flood stage	17.0	2	Feb 10, 2017	Some inundation of structures and roads near the stream
Major flood stage	19.0	0	—	Extensive inundation of structures and roads

Every listed crest

5 crests from 2005 to 2023. Filled: at or above flood stage. Hover a crest for its date and stage.

Crests at or above flood stage, by decade

These are the crests the local National Weather Service office lists for the gauge: the highest on record and recent crests. Lesser floods between them may be missing, so counts by decade are a floor.
Categories use today's flood stages. Levees, dams and channel changes since a crest can make old and new stages not directly comparable.

Highest crests

Highest listed crests, Carson River near Genoa

1	Dec 31, 2005	17.53	+2.03	Moderate	12,000
2	Feb 10, 2017	17.11	+1.61	Moderate	9,780
3	Mar 10, 2023	16.19	+0.69	Minor	5,200
4	May 21, 2005	15.99	+0.49	Minor	4,960
5	Apr 8, 2018	15.80	+0.30	Minor	4,860

The worst floods along the Carson River

For this gauge's highest crests, the other gauges on the Carson River that crested above flood stage within a week.

December 31, 2005: 17.53 ft here, moderate flooding

Carson CityNV · Dec 31, 2005 · 12.24 ft · Major
Fort ChurchillNV · Jan 2, 2006 · 8.93 ft · Moderate
DaytonNV · Jan 2, 2006 · 22.71 ft · Minor · its highest
Deer Run RoadNV · Jan 1, 2006 · 18.33 ft · Minor

February 10, 2017: 17.11 ft here, moderate flooding

Carson CityNV · Feb 11, 2017 · 11.48 ft · Major
Fort ChurchillNV · Feb 12, 2017 · 8.52 ft · Moderate
Deer Run RoadNV · Feb 11, 2017 · 17.95 ft · Minor

March 10, 2023: 16.19 ft here, minor flooding

FallonNV · Mar 13, 2023 · 9.41 ft · Minor

Gauges on the Carson River

In USGS station-number order, which runs downstream within a river basin.

Flood gauges on the Carson River

Genoa this gauge	NV	15.5	17.53 ft, Dec 31, 2005	0
Carson City	NV	10.0	19.19 ft, Jan 3, 1997	4
Deer Run Road	NV	15.5	24.23 ft, Jan 3, 1997	0
Dayton	NV	22.0	22.71 ft, Jan 2, 2006	0
Fort Churchill	NV	8.0	13.70 ft, Jan 3, 1997	3
Fallon	NV	9.1	9.90 ft, Apr 25, 2017	0

Other gauges in Douglas County

Flood gauges in Douglas County

Gardnerville	14.0	20.17 ft, Jan 3, 1997	4
Hoye Bridge nr Wellington	8.0	13.67 ft, Jan 3, 1997	1

Douglas County: every hazard · River floods across the country · Nevada

NOAA National Water Prediction Service, gauge CRGN2, retrieved October 30, 2026. Stages in feet on the gauge's own datum, not elevation. Crests are as the National Weather Service lists them; preliminary values may be revised.