Independent
Independent is an earth dam located in Boulder County, Colorado, built in 1903. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Independent
The primary purpose of Independent is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Independent Reservoir Company (mike Dollaghan) (private). It impounds the St. Vrain Creek-os near Longmont.
The dam stands 12 feet tall and stretches 822 feet across, creates a reservoir covering 32 acres, and has a maximum storage capacity of 260 acre-feet. Completed in 1903, the structure is over a century 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 06/06/2019.
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Location
| State | Colorado |
| County | Boulder |
| Nearest City | Longmont |
| River/Stream | St. Vrain Creek-os |
| Coordinates | 40.19822, -105.19700 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 12 ft |
| Dam Height | 12 ft |
| Dam Length | 822 ft |
| Year Completed | 1903 (123 years old) |
Storage & Hydraulics
| NID Storage | 260 acre-ft |
| Max Storage | 260 acre-ft |
| Normal Storage | 165 acre-ft |
| Surface Area | 32 acres |
| Max Discharge | 562 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | INDEPENDENT RESERVOIR COMPANY (MIKE DOLLAGHAN) |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 06/06/2019 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | CO01224 |
| Federal ID | CO01224 |
| More Info | State Dam Safety Program |