Allensworth Dam
Allensworth Dam is an earth dam located in Montgomery County, Iowa, built in 2024. It carries a Low hazard potential classification.
About Allensworth Dam
The primary purpose of Allensworth 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 Scott Allensworth (private). It impounds the Unnamed Tr To Ramp Creek near Essex.
The dam stands 27 feet tall and stretches 515 feet across, creates a reservoir covering 2 acres, has a maximum storage capacity of 35 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.
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Location
| State | Iowa |
| County | Montgomery |
| Nearest City | Essex |
| River/Stream | Unnamed Tr To Ramp Creek |
| Coordinates | 40.91900, -95.22020 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 27 ft |
| Dam Height | 27 ft |
| Dam Length | 515 ft |
| Year Completed | 2024 (2 years old) |
Storage & Hydraulics
| NID Storage | 35 acre-ft |
| Max Storage | 35 acre-ft |
| Normal Storage | 12 acre-ft |
| Surface Area | 2 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Grade Stabilization |
| Owner | Scott Allensworth |
| Owner Type | Private |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA04415 |
| Federal ID | IA04415 |
| More Info | State Dam Safety Program |