Chambers Reservoir
Chambers Reservoir is an earth dam located in Douglas County, Colorado, built in 2012. It carries a High hazard potential classification and has a fair condition assessment.
About Chambers Reservoir
The primary purpose of Chambers Reservoir 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 Arapahoe County Water & Wastewater Authority (acww (local government). It impounds the Happy Canyon Creek-os near Parker, Co.
The dam stands 43 feet tall and stretches 3,133 feet across, creates a reservoir covering 31 acres, and has a maximum storage capacity of 1,436 acre-feet. Completed in 2012, 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 fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 04/11/2022.
At 43 feet, this dam is taller than 89% 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 | Douglas |
| Nearest City | Parker, Co |
| River/Stream | Happy Canyon Creek-os |
| Coordinates | 39.55031, -104.80944 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 43 ft |
| Dam Height | 43 ft |
| Dam Length | 3,133 ft |
| Year Completed | 2012 (14 years old) |
Storage & Hydraulics
| NID Storage | 1,436 acre-ft |
| Max Storage | 1,436 acre-ft |
| Normal Storage | 1,318 acre-ft |
| Surface Area | 31 acres |
| Max Discharge | 3,730 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | ARAPAHOE COUNTY WATER & WASTEWATER AUTHORITY (ACWW |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Fair |
| Last Inspection | 04/11/2022 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | CO03020 |
| Federal ID | CO03020 |
| More Info | State Dam Safety Program |