Pine Brook
Pine Brook is a roller-compacted concrete dam located in Boulder County, Colorado, built in 2006. It carries a High hazard potential classification and has a satisfactory condition assessment.
About Pine Brook
The primary purpose of Pine 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 Pine Brook Water District (de Haas, Robert) (private). It impounds the Two Mile Creek near Boulder.
The dam stands 84 feet tall and stretches 570 feet across, creates a reservoir covering 4 acres, and has a maximum storage capacity of 140 acre-feet. Completed in 2006, 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 07/29/2022.
At 84 feet, this dam is taller than 97% 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 | Boulder |
| Nearest City | Boulder |
| River/Stream | Two Mile Creek |
| Coordinates | 40.04907, -105.31239 |
Physical Characteristics
| Dam Type | Roller-Compacted Concrete |
| NID Height | 84 ft |
| Dam Height | 84 ft |
| Dam Length | 570 ft |
| Year Completed | 2006 (20 years old) |
Storage & Hydraulics
| NID Storage | 140 acre-ft |
| Max Storage | 140 acre-ft |
| Normal Storage | 120 acre-ft |
| Surface Area | 4 acres |
| Max Discharge | 5,462 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | PINE BROOK WATER DISTRICT (DE HAAS, ROBERT) |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 07/29/2022 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | CO02896 |
| Federal ID | CO02896 |
| More Info | State Dam Safety Program |