Zach Mendenhall Dam
Zach Mendenhall Dam is an earth dam located in Clarke County, Iowa, built in 2017. It carries a Low hazard potential classification.
About Zach Mendenhall Dam
The primary purpose of Zach Mendenhall 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 Zachary Mendenhall (private). It impounds the Trib To Chariton River near Chariton.
The dam stands 26 feet tall and stretches 441 feet across, creates a reservoir covering 4 acres, has a maximum storage capacity of 61 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 2017, 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.
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Location
| State | Iowa |
| County | Clarke |
| Nearest City | Chariton |
| River/Stream | Trib To Chariton River |
| Coordinates | 40.92260, -93.56750 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 26 ft |
| Dam Height | 26 ft |
| Dam Length | 441 ft |
| Year Completed | 2017 (9 years old) |
Storage & Hydraulics
| NID Storage | 61 acre-ft |
| Max Storage | 61 acre-ft |
| Normal Storage | 17 acre-ft |
| Surface Area | 4 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 138 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Grade Stabilization |
| Owner | Zachary Mendenhall |
| Owner Type | Private |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA04300 |
| Federal ID | IA04300 |
| More Info | State Dam Safety Program |