Horseshoe Lake (east Dam) is an earth dam located in Larimer County, Colorado, built in 1905. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 37 ft37 ft tall and 1,650 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 Horseshoe Lake (east Dam)
The primary purpose of Horseshoe Lake (east Dam) is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Seven Lakes Reservoir Co. (dan Kammerzell) (private). It impounds the Big Thompson River-os near Loveland.
The dam stands 37 feet tall and stretches 1,650 feet across, creates a reservoir covering 650 acres, has a maximum storage capacity of 10,559 acre-feet, and collects water from a drainage area of 11 square miles. Completed in 1905, the structure is over a century 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 satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 06/11/2021.
At 37 feet, this dam is taller than 83% of dams nationwide.
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Location
| State | Colorado |
| County | Larimer |
| Nearest City | Loveland |
| River/Stream | Big Thompson River-os |
| Coordinates | 40.44072, -105.04567 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 37 ft |
| Dam Height | 35 ft |
| Dam Length | 1,650 ft |
| Year Completed | 1905 (121 years old) |
Storage & Hydraulics
| NID Storage | 10,559 acre-ft |
| Max Storage | 10,559 acre-ft |
| Normal Storage | 8,051 acre-ft |
| Surface Area | 650 acres |
| Drainage Area | 11 sq mi |
| Max Discharge | 9,204 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Seven Lakes Reservoir Co. (dan Kammerzell) |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 06/11/2021 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | CO01184 |
| Federal ID | CO01184 |
| More Info | State Dam Safety Program |