Copeland
Copeland is an earth dam located in Boulder County, Colorado, built in 1934. It carries a Low hazard potential classification and has a fair condition assessment.
About Copeland
The primary purpose of Copeland 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 St.vrain & Left Hand Water Conservancy Dist. (sean (local government). It impounds the North St. Vrain Creek-os near Lyons.
The dam stands 24 feet tall and stretches 225 feet across, creates a reservoir covering 7 acres, and has a maximum storage capacity of 117 acre-feet. Completed in 1934, the structure is well-established, with more than 75 years of service.
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 fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 09/16/2021.
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Location
| State | Colorado |
| County | Boulder |
| Nearest City | Lyons |
| River/Stream | North St. Vrain Creek-os |
| Coordinates | 40.21834, -105.53612 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 24 ft |
| Dam Height | 24 ft |
| Dam Length | 225 ft |
| Year Completed | 1934 (92 years old) |
Storage & Hydraulics
| NID Storage | 117 acre-ft |
| Max Storage | 117 acre-ft |
| Normal Storage | 75 acre-ft |
| Surface Area | 7 acres |
| Max Discharge | 200 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | ST.VRAIN & LEFT HAND WATER CONSERVANCY DIST. (SEAN |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 09/16/2021 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | CO01204 |
| Federal ID | CO01204 |
| More Info | State Dam Safety Program |