Walker Creek is an earth dam located in Marin County, California, built in 1976. It carries a Low hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 25 ft25 ft tall and 430 ft long, taller than 50% of U.S. dams with a recorded height. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Walker Creek
The primary purpose of Walker Creek is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Marin County Office of Education (local government). It impounds the Tr Walker Creek.
The dam stands 25 feet tall and stretches 430 feet across, creates a reservoir covering 6 acres, has a maximum storage capacity of 66 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1976, the structure is 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. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 12/17/2025.
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Location
| State | California |
| County | Marin |
| River/Stream | Tr Walker Creek |
| Coordinates | 38.16880, -122.81620 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 25 ft |
| Dam Height | 25 ft |
| Dam Length | 430 ft |
| Year Completed | 1976 (50 years old) |
Storage & Hydraulics
| NID Storage | 66 acre-ft |
| Max Storage | 66 acre-ft |
| Surface Area | 6 acres |
| Drainage Area | 0 sq mi |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Marin County Office of Education |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 12/17/2025 |
| Emergency Action Plan | No |
Identifiers
| NID ID | CA01221 |
| Federal ID | CA01221 |
| More Info | State Dam Safety Program |