Lost Lake
Lost Lake is an earth dam located in Larimer County, Colorado, built in 1929. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Lost Lake
The primary purpose of Lost Lake is fish and wildlife pond. The dam creates habitat for fish and wildlife, supporting local ecosystems and potentially serving conservation goals. The dam is owned by Colorado Parks And Wildlife (state). It impounds the Joe Wright Cr-tr near Fort Collins.
The dam stands 15 feet tall and stretches 630 feet across, creates a reservoir covering 24 acres, and has a maximum storage capacity of 359 acre-feet. Completed in 1929, 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 satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 08/14/2006. That was over 19 years ago.
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Location
| State | Colorado |
| County | Larimer |
| Nearest City | Fort Collins |
| River/Stream | Joe Wright Cr-tr |
| Coordinates | 40.61000, -105.85057 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 15 ft |
| Dam Height | 15 ft |
| Dam Length | 630 ft |
| Year Completed | 1929 (97 years old) |
Storage & Hydraulics
| NID Storage | 359 acre-ft |
| Max Storage | 359 acre-ft |
| Normal Storage | 215 acre-ft |
| Surface Area | 24 acres |
| Max Discharge | 387 cfs |
| Spillway Type | None |
Ownership & Safety
| Purpose | Fish and Wildlife Pond |
| Owner | COLORADO PARKS AND WILDLIFE |
| Owner Type | State |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 08/14/2006 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | CO01152 |
| Federal ID | CO01152 |
| More Info | State Dam Safety Program |