Windsor
Windsor is an earth dam located in Denver County, Colorado, built in 1892. It carries a High hazard potential classification and has a unsatisfactory condition assessment.
About Windsor
The primary purpose of Windsor is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Fairmount Cemetery (zavilla, Andy) (private). It impounds the Westerly Creek-os near Denver.
The dam stands 24 feet tall and stretches 4,752 feet across, creates a reservoir covering 53 acres, and has a maximum storage capacity of 735 acre-feet. Completed in 1892, 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 unsatisfactory, indicating serious safety deficiencies exist that require immediate attention or remedial action. An emergency action plan is in place for this dam. The most recent inspection on record was 03/03/2022.
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 | Denver |
| Nearest City | Denver |
| River/Stream | Westerly Creek-os |
| Coordinates | 39.70233, -104.88949 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 24 ft |
| Dam Height | 20 ft |
| Dam Length | 4,752 ft |
| Year Completed | 1892 (134 years old) |
Storage & Hydraulics
| NID Storage | 735 acre-ft |
| Max Storage | 735 acre-ft |
| Normal Storage | 600 acre-ft |
| Surface Area | 53 acres |
| Max Discharge | 1,356 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | FAIRMOUNT CEMETERY (ZAVILLA, ANDY) |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Unsatisfactory |
| Last Inspection | 03/03/2022 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | CO01147 |
| Federal ID | CO01147 |
| More Info | State Dam Safety Program |