Claymore
Claymore is an earth dam located in Larimer County, Colorado, built in 1978. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Claymore
The primary purpose of Claymore is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Pleasant Valley Lake Canal Co. (private). It impounds the Cache La Poudre near Laporte.
The dam stands 21 feet tall and stretches 985 feet across, creates a reservoir covering 82 acres, and has a maximum storage capacity of 1,321 acre-feet. Completed in 1978, the structure is 48 years 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 08/30/2022.
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 | Laporte |
| River/Stream | Cache La Poudre |
| Coordinates | 40.61601, -105.14937 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 21 ft |
| Dam Height | 21 ft |
| Dam Length | 985 ft |
| Year Completed | 1978 (48 years old) |
Storage & Hydraulics
| NID Storage | 1,321 acre-ft |
| Max Storage | 1,321 acre-ft |
| Normal Storage | 1,018 acre-ft |
| Surface Area | 82 acres |
| Max Discharge | 9,359 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | PLEASANT VALLEY LAKE CANAL CO. |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 08/30/2022 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | CO02014 |
| Federal ID | CO02014 |
| More Info | State Dam Safety Program |