Diers Dam is an earth dam located in Jefferson County, Iowa, built in 1969. It carries a Low hazard potential classification.
Dam profile
NID height · 21 ft21 ft tall and 280 ft long. 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 Diers Dam
The primary purpose of Diers 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 Robert Diers (private). It impounds the Tr-rocky Branch Creek near Rome.
The dam stands 21 feet tall and stretches 280 feet across, creates a reservoir covering 3 acres, has a maximum storage capacity of 61 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1969, 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 11/30/1960. That was over 65 years ago.
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Location
| State | Iowa |
| County | Jefferson |
| Nearest City | Rome |
| River/Stream | Tr-rocky Branch Creek |
| Coordinates | 41.08550, -91.80130 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 21 ft |
| Dam Height | 21 ft |
| Dam Length | 280 ft |
| Year Completed | 1969 (57 years old) |
Storage & Hydraulics
| NID Storage | 61 acre-ft |
| Max Storage | 61 acre-ft |
| Normal Storage | 25 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 | Robert Diers |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 11/30/1960 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA00548 |
| Federal ID | IA00548 |
| More Info | State Dam Safety Program |