David Downey Dam is an earth dam located in Union County, Iowa, built in 2013. It carries a Low hazard potential classification.
Dam profile
NID height · 34 ft34 ft tall and 409 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 David Downey Dam
The primary purpose of David Downey 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 David Downey (private). It impounds the Tr-indian Creek near Twelvemile Creek.
The dam stands 34 feet tall and stretches 409 feet across, creates a reservoir covering 7 acres, has a maximum storage capacity of 106 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 2013, 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 34 feet, this dam is taller than 78% of dams nationwide.
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Location
| State | Iowa |
| County | Union |
| Nearest City | Twelvemile Creek |
| River/Stream | Tr-indian Creek |
| Coordinates | 40.97720, -94.22980 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 34 ft |
| Dam Height | 34 ft |
| Dam Length | 409 ft |
| Year Completed | 2013 (13 years old) |
Storage & Hydraulics
| NID Storage | 106 acre-ft |
| Max Storage | 106 acre-ft |
| Normal Storage | 52 acre-ft |
| Surface Area | 7 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 30 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Grade Stabilization |
| Owner | David Downey |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA04219 |
| Federal ID | IA04219 |
| More Info | State Dam Safety Program |