West Jefferson is an earth dam located in Jefferson County, Colorado, built in 1982. It carries a Low hazard potential classification and has a fair condition assessment.
Dam profile
NID height · 30 ft30 ft tall and 525 ft long, taller than 68% of U.S. dams with a recorded height. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About West Jefferson
The primary purpose of West Jefferson 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 Jeffco Public Schools (doukas, Tony) (local government). It impounds the North Turkey Creek-tr near Evergreen.
The dam stands 30 feet tall and stretches 525 feet across, creates a reservoir covering 2 acres, and has a maximum storage capacity of 32 acre-feet. Completed in 1982, the structure is 44 years old.
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 09/08/2015. That was over 11 years ago.
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Location
| State | Colorado |
| County | Jefferson |
| Nearest City | Evergreen |
| River/Stream | North Turkey Creek-tr |
| Coordinates | 39.53684, -105.30886 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 30 ft |
| Dam Height | 13 ft |
| Dam Length | 525 ft |
| Year Completed | 1982 (44 years old) |
Storage & Hydraulics
| NID Storage | 32 acre-ft |
| Max Storage | 32 acre-ft |
| Normal Storage | 21 acre-ft |
| Surface Area | 2 acres |
| Max Discharge | 962 cfs |
| Spillway Type | None |
Ownership & Safety
| Purpose | Water Supply |
| Owner | Jeffco Public Schools (doukas, Tony) |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 09/08/2015 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | CO02421 |
| Federal ID | CO02421 |
| More Info | State Dam Safety Program |