Zach Anderson Dam
Zach Anderson Dam is an earth dam located in Montgomery County, Iowa, built in 2024. It carries a Low hazard potential classification.
About Zach Anderson Dam
The primary purpose of Zach Anderson 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 Zach Anderson (private). It impounds the Unnamed Trib To Sevenmile Cr near Tenville.
The dam stands 32 feet tall and stretches 447 feet across, creates a reservoir covering 5 acres, has a maximum storage capacity of 87 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 2024, 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.
At 32 feet, this dam is taller than 76% of dams nationwide.
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Location
| State | Iowa |
| County | Montgomery |
| Nearest City | Tenville |
| River/Stream | Unnamed Trib To Sevenmile Cr |
| Coordinates | 41.09960, -95.04550 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 32 ft |
| Dam Height | 32 ft |
| Dam Length | 447 ft |
| Year Completed | 2024 (2 years old) |
Storage & Hydraulics
| NID Storage | 87 acre-ft |
| Max Storage | 87 acre-ft |
| Normal Storage | 29 acre-ft |
| Surface Area | 5 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Grade Stabilization |
| Owner | Zach Anderson |
| Owner Type | Private |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA04463 |
| Federal ID | IA04463 |
| More Info | State Dam Safety Program |