Eagle Rock
Eagle Rock is an earth dam located in Weld County, Colorado, built in 1968. It carries a Low hazard potential classification and has a fair condition assessment.
About Eagle Rock
The primary purpose of Eagle Rock is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Mark T. Cox (private). It impounds the Simpson Creek-tr near Orchard.
The dam stands 27 feet tall and stretches 680 feet across, creates a reservoir covering 9 acres, has a maximum storage capacity of 83 acre-feet, and collects water from a drainage area of 36 square miles. Completed in 1968, 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 fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat.
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Location
| State | Colorado |
| County | Weld |
| Nearest City | Orchard |
| River/Stream | Simpson Creek-tr |
| Coordinates | 40.97501, -104.49723 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 27 ft |
| Dam Height | 15 ft |
| Dam Length | 680 ft |
| Year Completed | 1968 (58 years old) |
Storage & Hydraulics
| NID Storage | 83 acre-ft |
| Max Storage | 83 acre-ft |
| Normal Storage | 38 acre-ft |
| Surface Area | 9 acres |
| Drainage Area | 36 sq mi |
| Max Discharge | 2,800 cfs |
| Spillway Type | None |
Ownership & Safety
| Purpose | Recreation |
| Owner | MARK T. COX |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | CO00067 |
| Federal ID | CO00067 |
| More Info | State Dam Safety Program |