South Boulder Diversion Intake Dam
South Boulder Diversion Intake Dam is a concrete dam located in Boulder County, Colorado, built in 1936. It carries a Low hazard potential classification and has a fair condition assessment.
About South Boulder Diversion Intake Dam
The primary purpose of South Boulder Diversion Intake Dam 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 Denver Board Of Water Commissioners (public utility). It impounds the South Boulder Creek near Eldorado Springs.
The dam stands 43 feet tall and stretches 110 feet across, creates a reservoir covering 2 acres, has a maximum storage capacity of 30 acre-feet, and collects water from a drainage area of 107 square miles. Completed in 1936, the structure is well-established, with more than 75 years of service.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 09/26/2013. That was over 12 years ago.
At 43 feet, this dam is taller than 89% of dams nationwide.
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Location
| State | Colorado |
| County | Boulder |
| Nearest City | Eldorado Springs |
| River/Stream | South Boulder Creek |
| Coordinates | 39.93250, -105.30858 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 43 ft |
| Dam Height | 34 ft |
| Dam Length | 110 ft |
| Year Completed | 1936 (90 years old) |
Storage & Hydraulics
| NID Storage | 30 acre-ft |
| Max Storage | 30 acre-ft |
| Normal Storage | 14 acre-ft |
| Surface Area | 2 acres |
| Drainage Area | 107 sq mi |
| Max Discharge | 3,850 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | DENVER BOARD OF WATER COMMISSIONERS |
| Owner Type | Public Utility |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 09/26/2013 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | CO02373 |
| Federal ID | CO02373 |
| More Info | State Dam Safety Program |