Chicago Park Forebay
Chicago Park Forebay is an earth dam located in Nevada County, California, built in 1966. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Chicago Park Forebay
The primary purpose of Chicago Park Forebay is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Nevada Irrigation District (public utility). It impounds the Chicago Park Conduit near Road Crossing.
The dam stands 60 feet tall and stretches 2,000 feet across, creates a reservoir covering 1 acres, and has a maximum storage capacity of 103 acre-feet. Completed in 1966, 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. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 08/22/2022.
At 60 feet, this dam is taller than 95% of all dams in the United States.
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Location
| State | California |
| County | Nevada |
| Nearest City | Road Crossing |
| River/Stream | Chicago Park Conduit |
| Coordinates | 39.18300, -120.88350 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 60 ft |
| Dam Height | 60 ft |
| Dam Length | 2,000 ft |
| Year Completed | 1966 (60 years old) |
Storage & Hydraulics
| NID Storage | 103 acre-ft |
| Max Storage | 103 acre-ft |
| Normal Storage | 97 acre-ft |
| Surface Area | 1 acres |
| Max Discharge | 1,100 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Nevada Irrigation District |
| Owner Type | Public Utility |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 08/22/2022 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | CA82570 |
| Federal ID | CA82570 |
| More Info | State Dam Safety Program |