Waubonsie Creek Watershed Site M-3 is an earth dam located in Mills County, Iowa, built in 1999. It carries a Low hazard potential classification.
Dam profile
NID height · 34 ft34 ft tall and 520 ft long, taller than 78% of U.S. dams with a recorded height. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Waubonsie Creek Watershed Site M-3
The primary purpose of Waubonsie Creek Watershed Site M-3 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 Mills County (local government). It impounds the Waubonsie Creek near Bartlett.
The dam stands 34 feet tall and stretches 520 feet across, creates a reservoir covering 21 acres, has a maximum storage capacity of 430 acre-feet, and collects water from a drainage area of 9 square miles. Completed in 1999, the structure is 27 years old.
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 34 feet, this dam is taller than 78% of dams nationwide.
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Location
| State | Iowa |
| County | Mills |
| Nearest City | Bartlett |
| River/Stream | Waubonsie Creek |
| Coordinates | 40.96360, -95.70950 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 34 ft |
| Dam Height | 34 ft |
| Dam Length | 520 ft |
| Year Completed | 1999 (27 years old) |
Storage & Hydraulics
| NID Storage | 430 acre-ft |
| Max Storage | 430 acre-ft |
| Normal Storage | 100 acre-ft |
| Surface Area | 21 acres |
| Drainage Area | 9 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Grade Stabilization |
| Owner | Mills County |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA03731 |
| Federal ID | IA03731 |
| More Info | State Dam Safety Program |