Miller Dam
Miller Dam is an earth dam located in Johnson County, Iowa, built in 1971. It carries a Low hazard potential classification.
About Miller Dam
The primary purpose of Miller 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 Verne E Miller (private). It impounds the Tr-knapp Creek near Coralville Reservoir.
The dam stands 29 feet tall and stretches 442 feet across, creates a reservoir covering 6 acres, has a maximum storage capacity of 99 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1971, 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 05/11/1980. That was over 45 years ago.
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Location
| State | Iowa |
| County | Johnson |
| Nearest City | Coralville Reservoir |
| River/Stream | Tr-knapp Creek |
| Coordinates | 41.83590, -91.82420 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 29 ft |
| Dam Height | 29 ft |
| Dam Length | 442 ft |
| Year Completed | 1971 (55 years old) |
Storage & Hydraulics
| NID Storage | 99 acre-ft |
| Max Storage | 99 acre-ft |
| Normal Storage | 57 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 | Verne E Miller |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Last Inspection | 05/11/1980 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA01325 |
| Federal ID | IA01325 |
| More Info | State Dam Safety Program |