Heartbreak Hill is an earth dam located in Campbell County, Wyoming, built in 2007. It carries a Low hazard potential classification and has a fair condition assessment.
Dam profile
NID height · 39 ft39 ft tall and 351 ft long, taller than 85% 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 Heartbreak Hill
The primary purpose of Heartbreak Hill 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 Usdi - BLM (private). It impounds the Morton Draw near Unnamed Ranch.
The dam stands 39 feet tall and stretches 351 feet across, creates a reservoir covering 3 acres, has a maximum storage capacity of 49 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 2007, 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 fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 06/12/2025.
At 39 feet, this dam is taller than 85% of dams nationwide.
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Location
| State | Wyoming |
| County | Campbell |
| Nearest City | Unnamed Ranch |
| River/Stream | Morton Draw |
| Coordinates | 44.53944, -105.83833 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 39 ft |
| Dam Height | 39 ft |
| Dam Length | 351 ft |
| Year Completed | 2007 (19 years old) |
Storage & Hydraulics
| NID Storage | 49 acre-ft |
| Max Storage | 49 acre-ft |
| Normal Storage | 34 acre-ft |
| Surface Area | 3 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 1,140 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fish and Wildlife Pond |
| Owner | Usdi - BLM |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 06/12/2025 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WY02390 |
| Federal ID | WY02390 |
| More Info | State Dam Safety Program |