Smith Dam is an earth dam located in Sac County, Iowa, built in 2015. It carries a Low hazard potential classification.
Dam profile
NID height · 33 ft33 ft tall and 290 ft long, taller than 76% 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 Smith Dam
The primary purpose of Smith Dam is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Lynn Smith (private). It impounds the Tr-raccon River.
The dam stands 33 feet tall and stretches 290 feet across, creates a reservoir covering 2 acres, has a maximum storage capacity of 59 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 2015, 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 33 feet, this dam is taller than 76% of dams nationwide.
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Location
| State | Iowa |
| County | Sac |
| River/Stream | Tr-raccon River |
| Coordinates | 42.53120, -95.06780 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 33 ft |
| Dam Height | 33 ft |
| Dam Length | 290 ft |
| Year Completed | 2015 (11 years old) |
Storage & Hydraulics
| NID Storage | 59 acre-ft |
| Max Storage | 59 acre-ft |
| Normal Storage | 12 acre-ft |
| Surface Area | 2 acres |
| Drainage Area | 0 sq mi |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Lynn Smith |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA04239 |
| Federal ID | IA04239 |
| More Info | State Dam Safety Program |