Contra Loma Dike 3
Contra Loma Dike 3 is an earth dam located in Contra Costa County, California, built in 1967. It carries a Low hazard potential classification.
About Contra Loma Dike 3
Contra Loma Dike 3 is a dam in Contra Costa, California. The dam is owned by Bureau Of Reclamation (federal). It impounds the San Joaq River Os near Antioch.
The dam stands 10 feet tall and stretches 300 feet across, and has a maximum storage capacity of 2,630 acre-feet. Completed in 1967, the structure is well into its service life at over 50 years old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. An emergency action plan is in place for this dam. The most recent inspection on record was 06/09/2021.
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Location
| State | California |
| County | Contra Costa |
| Nearest City | Antioch |
| River/Stream | San Joaq River Os |
| Coordinates | 37.97260, -121.82050 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 10 ft |
| Dam Height | 10 ft |
| Dam Length | 300 ft |
| Year Completed | 1967 (59 years old) |
Storage & Hydraulics
| NID Storage | 2,630 acre-ft |
| Max Storage | 2,630 acre-ft |
| Normal Storage | 2,095 acre-ft |
| Spillway Type | None |
Ownership & Safety
| Owner | BUREAU OF RECLAMATION |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Not Available |
| Last Inspection | 06/09/2021 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | CA10143 |
| Federal ID | CA10143S002 |
| More Info | State Dam Safety Program |