Gibbs Dam
Gibbs Dam is an earth dam located in Adair County, Iowa, built in 1967. It carries a Low hazard potential classification.
About Gibbs Dam
The primary purpose of Gibbs Dam is fire protection, stock, or small fish pond. The dam maintains a small impoundment used for fire suppression, livestock watering, or as a fish pond. The dam is owned by Audra Gibbs (private). It impounds the Tr-marvel Creek near Hebron.
The dam stands 21 feet tall and stretches 443 feet across, creates a reservoir covering 6 acres, has a maximum storage capacity of 79 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1967, the structure is well into its service life at over 50 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. The most recent inspection on record was 10/12/1960. That was over 65 years ago.
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Location
| State | Iowa |
| County | Adair |
| Nearest City | Hebron |
| River/Stream | Tr-marvel Creek |
| Coordinates | 41.27850, -94.43140 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 21 ft |
| Dam Height | 21 ft |
| Dam Length | 443 ft |
| Year Completed | 1967 (59 years old) |
Storage & Hydraulics
| NID Storage | 79 acre-ft |
| Max Storage | 79 acre-ft |
| Normal Storage | 28 acre-ft |
| Surface Area | 6 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Audra Gibbs |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Last Inspection | 10/12/1960 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA00027 |
| Federal ID | IA00027 |
| More Info | State Dam Safety Program |