Lewis Dam
Lewis Dam is an earth dam located in Poweshiek County, Iowa, built in 1963. It carries a Low hazard potential classification.
About Lewis Dam
The primary purpose of Lewis 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 Glen Lewis (private). It impounds the Tr-north Skunk River near Union Mills.
The dam stands 25 feet tall and stretches 327 feet across, creates a reservoir covering 4 acres, has a maximum storage capacity of 45 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1963, 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.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Iowa |
| County | Poweshiek |
| Nearest City | Union Mills |
| River/Stream | Tr-north Skunk River |
| Coordinates | 41.54250, -92.66170 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 25 ft |
| Dam Height | 25 ft |
| Dam Length | 327 ft |
| Year Completed | 1963 (63 years old) |
Storage & Hydraulics
| NID Storage | 45 acre-ft |
| Max Storage | 45 acre-ft |
| Normal Storage | 25 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 | Glen Lewis |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA00970 |
| Federal ID | IA00970 |
| More Info | State Dam Safety Program |