Upper Three Mile #1 is an earth dam located in Jackson County, Colorado, built in 2006. It carries a Low hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 37 ft37 ft tall and 353 ft long, taller than 83% of U.S. dams with a recorded height. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Upper Three Mile #1
The primary purpose of Upper Three Mile #1 is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Matheson, Monte (private). It impounds the Three Mile Creek near Saratoga, Wyo.
The dam stands 37 feet tall and stretches 353 feet across, creates a reservoir covering 5 acres, has a maximum storage capacity of 75 acre-feet, and collects water from a drainage area of 3 square miles. Completed in 2006, the structure is relatively new.
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 satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 08/06/2010. That was over 16 years ago.
At 37 feet, this dam is taller than 83% of dams nationwide.
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Location
| State | Colorado |
| County | Jackson |
| Nearest City | Saratoga, Wyo |
| River/Stream | Three Mile Creek |
| Coordinates | 40.94735, -106.43657 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 37 ft |
| Dam Height | 37 ft |
| Dam Length | 353 ft |
| Year Completed | 2006 (20 years old) |
Storage & Hydraulics
| NID Storage | 75 acre-ft |
| Max Storage | 75 acre-ft |
| Normal Storage | 48 acre-ft |
| Surface Area | 5 acres |
| Drainage Area | 3 sq mi |
| Max Discharge | 662 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Matheson, Monte |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 08/06/2010 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | CO02950 |
| Federal ID | CO02950 |
| More Info | State Dam Safety Program |