Mill Creek Dam No 1
Mill Creek Dam No 1 is an earth dam located in Hinsdale County, Colorado, built in 1954. It carries a Significant hazard potential classification.
About Mill Creek Dam No 1
The primary purpose of Mill Creek Dam No 1 is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Usda Fs (federal). It impounds the Mill Creek.
The dam stands 18 feet tall and stretches 438 feet across, has a maximum storage capacity of 40 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1954, the structure is well into its service life at over 50 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. The most recent inspection on record was 09/14/2010. That was over 15 years ago.
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Location
| State | Colorado |
| County | Hinsdale |
| River/Stream | Mill Creek |
| Coordinates | 38.00767, -107.20626 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 18 ft |
| Dam Height | 18 ft |
| Dam Length | 438 ft |
| Year Completed | 1954 (72 years old) |
Storage & Hydraulics
| NID Storage | 40 acre-ft |
| Max Storage | 40 acre-ft |
| Normal Storage | 10 acre-ft |
| Drainage Area | 2 sq mi |
| Max Discharge | 480 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | USDA FS |
| Owner Type | Federal |
| Hazard Classification | Significant |
| Condition Assessment | Not Rated |
| Last Inspection | 09/14/2010 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | CO02621 |
| Federal ID | CO02621 |
| More Info | State Dam Safety Program |