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 Photo: Marsh Creek outlet under flow conditions.
2005 MCR Outlet
 

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

Marsh Creek @ 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.


Marsh Creek @ Brentwood
Stage Data on CDEC — Click "RIV STG" for plot

The USGS decommissioned this gage in 2014. The Hydrology Section soon after took over the gage house and installed a bubbler gage. The Flood Control District will continue to monitor the stage in Marsh Creek @ Brentwood. As budget allows, the Flood Control District will continue to update the rating curve which translates the stage to a flow rate.

Other's Stream Ga
uges in Contra Costa County
San Ramon Creek, San Ramon - USGS
Wildcat Creek, San Pablo - Balance Hydrologics/Urban Creeks Council