Johnson
Johnson is an earth dam located in Adams County, Colorado, built in 1927. It carries a Low hazard potential classification and has a fair condition assessment.
About Johnson
The primary purpose of Johnson is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Sage Creek Master Homeowners Association (george, (private). It impounds the Brantner Gulch near Brighton.
The dam stands 12 feet tall and stretches 309 feet across, creates a reservoir covering 4 acres, and has a maximum storage capacity of 52 acre-feet. Completed in 1927, 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 09/24/2013. That was over 12 years ago.
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Location
| State | Colorado |
| County | Adams |
| Nearest City | Brighton |
| River/Stream | Brantner Gulch |
| Coordinates | 39.92168, -104.91223 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 12 ft |
| Dam Height | 12 ft |
| Dam Length | 309 ft |
| Year Completed | 1927 (99 years old) |
Storage & Hydraulics
| NID Storage | 52 acre-ft |
| Max Storage | 52 acre-ft |
| Normal Storage | 40 acre-ft |
| Surface Area | 4 acres |
| Max Discharge | 164 cfs |
| Spillway Type | None |
Ownership & Safety
| Purpose | Irrigation |
| Owner | SAGE CREEK MASTER HOMEOWNERS ASSOCIATION (GEORGE, |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 09/24/2013 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | CO01124 |
| Federal ID | CO01124 |
| More Info | State Dam Safety Program |