Dennis Smith Dam
Dennis Smith Dam is an earth dam located in Lucas County, Iowa, built in 2023. It carries a Low hazard potential classification.
About Dennis Smith Dam
The primary purpose of Dennis Smith 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 Dennis Smith (private). It impounds the Unnamed Tributary Of The Chariton River near Rathbun.
The dam stands 25 feet tall and stretches 402 feet across, creates a reservoir covering 3 acres, has a maximum storage capacity of 62 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 2023, 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 | Lucas |
| Nearest City | Rathbun |
| River/Stream | Unnamed Tributary Of The Chariton River |
| Coordinates | 40.94210, -93.31550 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 25 ft |
| Dam Height | 25 ft |
| Dam Length | 402 ft |
| Year Completed | 2023 (3 years old) |
Storage & Hydraulics
| NID Storage | 62 acre-ft |
| Max Storage | 62 acre-ft |
| Normal Storage | 12 acre-ft |
| Surface Area | 3 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Grade Stabilization |
| Owner | Dennis Smith |
| Owner Type | Private |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA04420 |
| Federal ID | IA04420 |
| More Info | State Dam Safety Program |