Upper Sand Creek Detention Basin

High HazardSatisfactory ConditionEmergency Action Plan: Yes

Location

CountyContra Costa
Nearest CityBrentwood
River/StreamSand Creek
Coordinates37.94500, -121.76400

Physical Characteristics

Dam TypeEarth
NID Height40 ft
Dam Height40 ft
Dam Length1,400 ft
Year Completed2014 (12 years old)

Storage & Hydraulics

NID Storage895 acre-ft
Max Storage895 acre-ft
Surface Area44 acres

Ownership & Safety

PurposeFlood Risk Reduction
OwnerContra Costa County Flood Control and Water Conservation District
Owner TypeLocal Government
Hazard ClassificationHigh
Condition AssessmentSatisfactory
Last Inspection01/07/2026
Emergency Action PlanYes

Identifiers

NID IDCA01555
Federal IDCA01555
More InfoState Dam Safety Program

Nearby Dams

Deer Creek 1.6 mi High Dry Creek 2.9 mi High Antioch Reservoir 3.3 mi High Contra Loma Dike 3 3.6 mi Low Marsh Creek 4.5 mi High Los Vaqueros 7.8 mi High Montezuma 10.2 mi Low Vista Del Mar Detention Basin 11.6 mi High Clifton Court Forebay 12.9 mi Low Pine Creek 13.0 mi High