Thompson Dam is an earth dam located in Decatur County, Iowa, built in 1965. It carries a Low hazard potential classification.
Dam profile
NID height · 29 ft29 ft tall and 445 ft long, taller than 65% 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 Thompson Dam
The primary purpose of Thompson 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 Paul Thompson (private). It impounds the Tr-indian Creek near Cainsville, Mo.
The dam stands 29 feet tall and stretches 445 feet across, creates a reservoir covering 4 acres, has a maximum storage capacity of 49 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1965, 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 01/11/1968. That was over 58 years ago.
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Location
| State | Iowa |
| County | Decatur |
| Nearest City | Cainsville, Mo |
| River/Stream | Tr-indian Creek |
| Coordinates | 40.62080, -93.86830 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 29 ft |
| Dam Height | 29 ft |
| Dam Length | 445 ft |
| Year Completed | 1965 (61 years old) |
Storage & Hydraulics
| NID Storage | 49 acre-ft |
| Max Storage | 49 acre-ft |
| Normal Storage | 28 acre-ft |
| Surface Area | 4 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Paul Thompson |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 01/11/1968 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA00342 |
| Federal ID | IA00342 |
| More Info | State Dam Safety Program |