Good/johnson Dam is an earth dam located in Mills County, Iowa, built in 1961. It carries a Low hazard potential classification.
Dam profile
NID height · 42 ft42 ft tall and 403 ft long, taller than 88% 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 Good/johnson Dam
The primary purpose of Good/johnson 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 Rc Good & a Johnson (private). It impounds the Tr-keg Creek near Glenwood.
The dam stands 42 feet tall and stretches 403 feet across, creates a reservoir covering 3 acres, has a maximum storage capacity of 64 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1961, 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 09/25/2003. That was over 23 years ago.
At 42 feet, this dam is taller than 88% of dams nationwide.
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Location
| State | Iowa |
| County | Mills |
| Nearest City | Glenwood |
| River/Stream | Tr-keg Creek |
| Coordinates | 41.07190, -95.75610 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 42 ft |
| Dam Height | 42 ft |
| Dam Length | 403 ft |
| Year Completed | 1961 (65 years old) |
Storage & Hydraulics
| NID Storage | 64 acre-ft |
| Max Storage | 64 acre-ft |
| Normal Storage | 46 acre-ft |
| Surface Area | 3 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Rc Good & a Johnson |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 09/25/2003 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA00692 |
| Federal ID | IA00692 |
| More Info | State Dam Safety Program |