Prehm Dam is an earth dam located in Henry County, Iowa, built in 1986. It carries a Low hazard potential classification.
Dam profile
NID height · 33 ft33 ft tall and 210 ft long, taller than 76% 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 Prehm Dam
The primary purpose of Prehm 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 Arlo a Prehm (private). It impounds the Tr- Cedar Cr. near Lake Geode.
The dam stands 33 feet tall and stretches 210 feet across, creates a reservoir covering 2 acres, has a maximum storage capacity of 40 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1986, the structure is 40 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.
At 33 feet, this dam is taller than 76% of dams nationwide.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Iowa |
| County | Henry |
| Nearest City | Lake Geode |
| River/Stream | Tr- Cedar Cr. |
| Coordinates | 40.84190, -91.37570 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 33 ft |
| Dam Height | 33 ft |
| Dam Length | 210 ft |
| Year Completed | 1986 (40 years old) |
Storage & Hydraulics
| NID Storage | 40 acre-ft |
| Max Storage | 40 acre-ft |
| Normal Storage | 26 acre-ft |
| Surface Area | 2 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Arlo a Prehm |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA02320 |
| Federal ID | IA02320 |
| More Info | State Dam Safety Program |