College #3
College #3 is an earth dam located in Larimer County, Colorado, built in 1919. It carries a High hazard potential classification and has a satisfactory condition assessment.
About College #3
The primary purpose of College #3 is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by State Board Of Agriculture (doug Nagel) (state). It impounds the Cache La Poudre-tr near Fort Collins.
The dam stands 18 feet tall and stretches 1,075 feet across, creates a reservoir covering 71 acres, and has a maximum storage capacity of 1,461 acre-feet. Completed in 1919, 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 09/19/2022.
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 | Larimer |
| Nearest City | Fort Collins |
| River/Stream | Cache La Poudre-tr |
| Coordinates | 40.58071, -105.14748 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 18 ft |
| Dam Height | 18 ft |
| Dam Length | 1,075 ft |
| Year Completed | 1919 (107 years old) |
Storage & Hydraulics
| NID Storage | 1,461 acre-ft |
| Max Storage | 1,461 acre-ft |
| Normal Storage | 782 acre-ft |
| Surface Area | 71 acres |
| Max Discharge | 2,976 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | STATE BOARD OF AGRICULTURE (DOUG NAGEL) |
| Owner Type | State |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 09/19/2022 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | CO02015 |
| Federal ID | CO02015 |
| More Info | State Dam Safety Program |