Boyd Lake
Boyd Lake is an earth dam located in Larimer County, Colorado, built in 1900. It carries a High hazard potential classification and has a satisfactory condition assessment.
About Boyd Lake
The primary purpose of Boyd 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 Greeley-loveland Irrigation Company (dan Kammerzel (private). It impounds the Big Thompson River-os near Loveland.
The dam stands 40 feet tall and stretches 10,729 feet across, creates a reservoir covering 1,747 acres, has a maximum storage capacity of 59,981 acre-feet, and collects water from a drainage area of 17 square miles. Completed in 1900, the structure is over a century old.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. 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 07/29/2022.
At 40 feet, this dam is taller than 87% of dams nationwide.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Colorado dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Colorado |
| County | Larimer |
| Nearest City | Loveland |
| River/Stream | Big Thompson River-os |
| Coordinates | 40.42069, -105.02452 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 40 ft |
| Dam Height | 40 ft |
| Dam Length | 10,729 ft |
| Year Completed | 1900 (126 years old) |
Storage & Hydraulics
| NID Storage | 59,981 acre-ft |
| Max Storage | 59,981 acre-ft |
| Normal Storage | 48,871 acre-ft |
| Surface Area | 1,747 acres |
| Drainage Area | 17 sq mi |
| Max Discharge | 42,700 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fish and Wildlife Pond |
| Owner | GREELEY-LOVELAND IRRIGATION COMPANY (DAN KAMMERZEL |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 07/29/2022 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | CO00157 |
| Federal ID | CO00157 |
| More Info | State Dam Safety Program |