Lower Beaver Brook
Lower Beaver Brook is a roller-compacted concrete dam located in Clear Creek County, Colorado, built in 2022. It carries a High hazard potential classification and has a satisfactory condition assessment.
About Lower Beaver Brook
The primary purpose of Lower Beaver Brook 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 Lookout Mountain Water District (snyder, Dean) (local government). It impounds the Beaver Brook near Golden.
The dam stands 54 feet tall and stretches 200 feet across, creates a reservoir covering 2 acres, has a maximum storage capacity of 49 acre-feet, and collects water from a drainage area of 8 square miles. Completed in 2022, 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 07/19/2022.
At 54 feet, this dam is taller than 94% 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 | Clear Creek |
| Nearest City | Golden |
| River/Stream | Beaver Brook |
| Coordinates | 39.70602, -105.41112 |
Physical Characteristics
| Dam Type | Roller-Compacted Concrete |
| NID Height | 54 ft |
| Dam Height | 37 ft |
| Dam Length | 200 ft |
| Year Completed | 2022 (4 years old) |
Storage & Hydraulics
| NID Storage | 49 acre-ft |
| Max Storage | 49 acre-ft |
| Normal Storage | 29 acre-ft |
| Surface Area | 2 acres |
| Drainage Area | 8 sq mi |
| Max Discharge | 3,300 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | LOOKOUT MOUNTAIN WATER DISTRICT (SNYDER, DEAN) |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 07/19/2022 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | CO00187 |
| Federal ID | CO00187 |
| More Info | State Dam Safety Program |