Gobbo #1 is an earth dam located in Mesa County, Colorado, built in 1973. It carries a Significant hazard potential classification and has a fair condition assessment.
Dam profile
NID height · 44 ft44 ft tall and 500 ft long, taller than 89% 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 Gobbo #1
The primary purpose of Gobbo #1 is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by O'dell, Steven (private). It impounds the Johnson Creek near Dewey, Utah.
The dam stands 44 feet tall and stretches 500 feet across, creates a reservoir covering 13 acres, and has a maximum storage capacity of 246 acre-feet. Completed in 1973, the structure is well into its service life at over 50 years old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in 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. An emergency action plan is in place for this dam. The most recent inspection on record was 09/23/2022.
At 44 feet, this dam is taller than 89% of dams nationwide.
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Location
| State | Colorado |
| County | Mesa |
| Nearest City | Dewey, Utah |
| River/Stream | Johnson Creek |
| Coordinates | 38.85576, -108.73194 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 44 ft |
| Dam Height | 33 ft |
| Dam Length | 500 ft |
| Year Completed | 1973 (53 years old) |
Storage & Hydraulics
| NID Storage | 246 acre-ft |
| Max Storage | 246 acre-ft |
| Normal Storage | 168 acre-ft |
| Surface Area | 13 acres |
| Max Discharge | 137 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | O'dell, Steven |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Last Inspection | 09/23/2022 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | CO00110 |
| Federal ID | CO00110 |
| More Info | State Dam Safety Program |