East Lake #3
East Lake #3 is an earth dam located in Adams County, Colorado, built in 1887. It carries a Low hazard potential classification.
About East Lake #3
The primary purpose of East Lake #3 is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by City Of Thornton (local government). It impounds the Brantner Gulch-tr near Thornton.
The dam stands 11 feet tall and stretches 2,000 feet across, creates a reservoir covering 35 acres, and has a maximum storage capacity of 790 acre-feet. Completed in 1887, the structure is over a century 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. The most recent inspection on record was 09/24/2013. That was over 12 years ago.
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Location
| State | Colorado |
| County | Adams |
| Nearest City | Thornton |
| River/Stream | Brantner Gulch-tr |
| Coordinates | 39.92500, -104.94889 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 11 ft |
| Dam Height | 11 ft |
| Dam Length | 2,000 ft |
| Year Completed | 1887 (139 years old) |
Storage & Hydraulics
| NID Storage | 790 acre-ft |
| Max Storage | 790 acre-ft |
| Surface Area | 35 acres |
| Max Discharge | 7,894 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | CITY OF THORNTON |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Last Inspection | 09/24/2013 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | CO02111 |
| Federal ID | CO02111 |
| More Info | State Dam Safety Program |