Pit No. 7 Diversion is a concrete dam located in Shasta County, California, built in 1965. It carries a High hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 228 ft228 ft tall and 907 ft long, taller than 99% of U.S. dams with a recorded height. Height is drawn to scale against the Statue of Liberty, 305 ft ground to torch; the profile is a generic concrete gravity section and the water level is illustrative.
About Pit No. 7 Diversion
The primary purpose of Pit No. 7 Diversion is hydroelectric. The dam generates hydroelectric power by channeling water through turbines, converting the energy of flowing water into electricity. The dam is owned by Pacific Gas and Electric Company (private). It impounds the Pit River near Redding.
The dam stands 228 feet tall and stretches 907 feet across, creates a reservoir covering 69 acres, and has a maximum storage capacity of 34,100 acre-feet. Completed in 1965, the structure is well into its service life at over 50 years old.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 08/01/2023.
At 228 feet, this dam is taller than 99% of all dams in the United States.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The California dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | California |
| County | Shasta |
| Nearest City | Redding |
| River/Stream | Pit River |
| Coordinates | 40.84810, -121.99030 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 228 ft |
| Dam Height | 228 ft |
| Dam Length | 907 ft |
| Year Completed | 1965 (61 years old) |
Storage & Hydraulics
| NID Storage | 34,100 acre-ft |
| Max Storage | 34,100 acre-ft |
| Normal Storage | 34,000 acre-ft |
| Surface Area | 69 acres |
| Max Discharge | 11,400 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner | Pacific Gas and Electric Company |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 08/01/2023 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | CA00415 |
| Federal ID | CA00415 |
| More Info | State Dam Safety Program |