Genesee No. 2 is a gravity dam located in Jefferson County, Colorado, built in 2008. It carries a High hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 103 ft103 ft tall and 383 ft long, taller than 98% of U.S. dams with a recorded height. Height is drawn to scale against a ten-story building, about 100 ft; the profile is a generic concrete gravity section and the water level is illustrative.
About Genesee No. 2
The primary purpose of Genesee No. 2 is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by Genesee Water and Sanitation District (public utility).
The dam stands 103 feet tall and stretches 383 feet across, creates a reservoir covering 3 acres, and has a maximum storage capacity of 127 acre-feet. Completed in 2008, the structure is relatively new.
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 11/28/2022.
At 103 feet, this dam is taller than 98% of all dams in the United States.
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 | Jefferson |
| Coordinates | 39.66873, -105.27667 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 103 ft |
| Dam Height | 98 ft |
| Dam Length | 383 ft |
| Year Completed | 2008 (18 years old) |
Storage & Hydraulics
| NID Storage | 127 acre-ft |
| Max Storage | 127 acre-ft |
| Normal Storage | 101 acre-ft |
| Surface Area | 3 acres |
| Max Discharge | 4,993 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | Genesee Water and Sanitation District |
| Owner Type | Public Utility |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 11/28/2022 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | CO02924 |
| Federal ID | CO02924 |
| More Info | State Dam Safety Program |