Water Elevation Gauges

Stream Gauge Location Maps
Stream Gauge Location Map
Google Earth Water Level Gauges only 

Walnut Creek @ Ygnacio Valley Road
Stage Data on CDEC — Click "RIV STG" for plot

The Walnut Creek Stream Gauge was installed during the summer of 2008 and, at this time, only measures the stage (water elevation) in Walnut Creek. The gauge is located upstream of Ygnacio Valley Road and upstream of a private parking lot that is constructed over the concrete channel. A rating curve (depth vs flow graph) will be developed over time. The gauge will be used to evaluate models used to determine design flows for flood control projects. If the gauge is in place for many years, it can be used to establish flow frequency curves for predication of design flows.
 
Marsh Creek Reservoir Elevation Information
Stage Data on CDEC — Click "RIV STG" for plot
Marsh Dam Outfall 2.jpg

Photo — Marsh Creek Dam primary spillway outfall.

Marsh Creek Dam is located in East Contra Costa County, south of the City of Brentwood and north of the intersection of Marsh Creek Road and Camino Diablo. 

The following elevations are based on as-built information for Marsh Creek Reservoir:

203.5 feet — Top of Dam
200.0 feet — Top of Emergency Spillway Erosion Protection
191.8 feet — Emergency Spillway Crest
168.0 feet — Primary Spillway Crest
Below 168.0 feet the water level recedes by evaporation and infiltration.

Notes:
  • Water only flows from the dam outfall when the water elevation is above the primary spillway crest.
  • Water recedes to the primary spillway crest and stops flowing.
  • The water level (stage) does not recede below 168.0 except by evaporation and infiltration.

Marsh Cre
ek @ Marsh Creek Fire
Stage Data on CDEC — Click "RIV STG" for plot

Installed in January 19, 2010 this stream gauge 
currently provides depth of flow at its location. The gauge is located near the entrance road for the Sheriff's Marsh Creek Detention Facility off of Marsh Creek Road east of Clayton. A rating curve (depth vs flow graph) will be developed over time. The gauge will be used to evaluate models used to determine design flows for flood control projects. If the gauge is in place for many years, it can be used to establish flow frequency curves for predication of design flows.

Other's Stream Gauges in Contra Costa County
Marsh Creek, Brentwood -USGS
San Ramon Creek, San Ramon - USGS

Wildcat Creek, San Pablo - Balance Hydrologics/Urban Creeks Council