Louisville No. 1
Louisville No. 1 is an earth dam located in Boulder County, Colorado, built in 1888. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Louisville No. 1
The primary purpose of Louisville No. 1 is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by City Of Louisville (kowar, Kurt) (local government). It impounds the Bullhead Gulch-tr near Louisville.
The dam stands 20 feet tall and stretches 2,500 feet across, creates a reservoir covering 17 acres, and has a maximum storage capacity of 250 acre-feet. Completed in 1888, the structure is over a century old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. 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 10/11/2022.
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Location
| State | Colorado |
| County | Boulder |
| Nearest City | Louisville |
| River/Stream | Bullhead Gulch-tr |
| Coordinates | 39.99099, -105.15462 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 13 ft |
| Dam Length | 2,500 ft |
| Year Completed | 1888 (138 years old) |
Storage & Hydraulics
| NID Storage | 250 acre-ft |
| Max Storage | 250 acre-ft |
| Normal Storage | 206 acre-ft |
| Surface Area | 17 acres |
| Max Discharge | 595 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | CITY OF LOUISVILLE (KOWAR, KURT) |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 10/11/2022 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | CO00235 |
| Federal ID | CO00235 |
| More Info | State Dam Safety Program |