Lake Arrowhead
Lake Arrowhead is an earth dam located in Gunnison County, Colorado, built in 1979. It carries a Significant hazard potential classification and has a fair condition assessment.
About Lake Arrowhead
The primary purpose of Lake Arrowhead is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Arrowhead Ranch Water Company (private). It impounds the E Fork Little Blue Creek near Delta.
The dam stands 43 feet tall and stretches 853 feet across, creates a reservoir covering 44 acres, and has a maximum storage capacity of 554 acre-feet. Completed in 1979, the structure is 47 years 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 fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 10/20/2022.
At 43 feet, this dam is taller than 89% of dams nationwide.
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Location
| State | Colorado |
| County | Gunnison |
| Nearest City | Delta |
| River/Stream | E Fork Little Blue Creek |
| Coordinates | 38.30666, -107.35322 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 43 ft |
| Dam Height | 27 ft |
| Dam Length | 853 ft |
| Year Completed | 1979 (47 years old) |
Storage & Hydraulics
| NID Storage | 554 acre-ft |
| Max Storage | 554 acre-ft |
| Normal Storage | 334 acre-ft |
| Surface Area | 44 acres |
| Max Discharge | 3,200 cfs |
| Spillway Type | None |
Ownership & Safety
| Purpose | Recreation |
| Owner | ARROWHEAD RANCH WATER COMPANY |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Last Inspection | 10/20/2022 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | CO01359 |
| Federal ID | CO01359 |
| More Info | State Dam Safety Program |