West Walker River near Coleville (Upper Gage)
California — Water Level & Flood Stage

Major Flood

7.3 ft

5,046 cfs

Moderate Flood

6.8 ft

4,122 cfs

Minor Flood

6 ft

2,966 cfs

Action Stage

5.5 ft

2,400 cfs

10.5 ft

Incredible flood disaster with massive and uncertain impacts in excess of the January 1997 event.

10 ft

Flood of record. Highway 395 in West Walker River Canyon closed for months. Massive destruction to infrastructure and economy including transportation, power, water, homes, businesses, etc. Area isolated. Near this flow in January 1997 a 6.5-mile stretch of Highway 395 completely scoured with debris from the canyon deposited in the town of Walker.

9.5 ft

Near record flooding. Area cut off as most transportation routes into area destroyed or flooded. Massive destruction of infrastructure and economy including utilities, roads, business, homes, etc.

8.5 ft

Flood disaster from Walker River Canyon through Antelope Valley. Widespread flood damage to roads, bridges, homes and structures along river. Severe damage to Highway 395 in W Walker River Canyon with the highway likely closed. Historically this flow has been exceeded only once in January 1997.

8 ft

Flooding near disaster levels in the West Walker Canyon and in Antelope Valley. Numerous structures flooded and roads washed out. Sections of Highway 395 likely destroyed in West Walker Canyon. Major damage to agricutural land due to erosion and destroyed diversion dams, headgates, canals and levees. Similar to the 2nd highest flood of record in November of 1950, and only exceeded in January 1997.

7.3 ft

Major flooding in the West Walker River Canyon and in Antelope Valley including Walker, Coleville and Topaz California. Many buildings flooded and roads washed out. Major damage to agricultural lands. Extensive sandbagging required to protect propery. Transportiation affected. Damage to Highway 395 in the West Walker Canyon likely. Similar to the 4th highest peak flow in the 85 year gage record.

6.8 ft

Moderate flooding of lowlands, agricultural land, yards, basements and rural roads in the West Walker River Canyon and in Antelope Valley including Walker, Coleville and Topaz California. Flooding of structures limited although some sandbagging necessary Roughly similar, but slightly below the June 2017 peak.

6.5 ft

Expanding minor flooding of lowlands, pastures and some rural roads between the West Walker River Canyon and Topaz Lake, including Walker Coleville and Topaz California. Out of bank flows may cause significant erosion of agricuturural lands. Similar to the peak of June 2023.

6 ft

Flood stage. Minor flooding of lowlands pasture & rural roads in Antelope Valley including Walker, Coleville and Topaz California. Roughly similar to June 2019 and October 2021 crests.

5.5 ft

Monitor Stage, No flooding in reach from West Walker River Canyon through Antelope Valley CA including Walker, Coleville, Topaz CA.

USGS Site

10296000

NWS LID

WWBC1

River

West Walker River

County

Mono, CA

Coordinates

38.3797°N, 119.4492°W