Evans Dam
Evans Dam is an earth dam located in Adams County, Iowa, built in 2021. It carries a Low hazard potential classification.
About Evans Dam
The primary purpose of Evans Dam is grade stabilization. Grade stabilization dams prevent erosion by reducing the slope and velocity of water flowing through a channel. They're commonly used to stop gullies from deepening and to protect downstream land and infrastructure. The dam is owned by Terry Evans (private). It impounds the Tr-west Nodaway near Morton Mills.
The dam stands 28 feet tall and stretches 567 feet across, creates a reservoir covering 3 acres, has a maximum storage capacity of 39 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 2021, the structure is relatively new.
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 | Adams |
| Nearest City | Morton Mills |
| River/Stream | Tr-west Nodaway |
| Coordinates | 41.11900, -94.87100 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 28 ft |
| Dam Height | 28 ft |
| Dam Length | 567 ft |
| Year Completed | 2021 (5 years old) |
Storage & Hydraulics
| NID Storage | 39 acre-ft |
| Max Storage | 39 acre-ft |
| Normal Storage | 11 acre-ft |
| Surface Area | 3 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 58 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Grade Stabilization |
| Owner | Terry Evans |
| Owner Type | Private |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA04440 |
| Federal ID | IA04440 |
| More Info | State Dam Safety Program |