Little Sni-a-bar Creek Dam 42 is an earth dam located in Lafayette County, Missouri, built in 1974. It carries a Low hazard potential classification.
Dam profile
NID height · 35 ft35 ft tall and 500 ft long, taller than 80% 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 Little Sni-a-bar Creek Dam 42
The primary purpose of Little Sni-a-bar Creek Dam 42 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 Ltl Sniabar Cr Wrsd Sbds (local government). It impounds the Tr-little Sni-a-bar Creek near Henrietta.
The dam stands 35 feet tall and stretches 500 feet across, creates a reservoir covering 7 acres, has a maximum storage capacity of 95 acre-feet, and collects water from a drainage area of 235 square miles. Completed in 1974, the structure is well into its service life at over 50 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 35 feet, this dam is taller than 80% of dams nationwide.
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Location
| State | Missouri |
| County | Lafayette |
| Nearest City | Henrietta |
| River/Stream | Tr-little Sni-a-bar Creek |
| Coordinates | 39.04606, -93.95432 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 35 ft |
| Dam Height | 33 ft |
| Dam Length | 500 ft |
| Year Completed | 1974 (52 years old) |
Storage & Hydraulics
| NID Storage | 95 acre-ft |
| Max Storage | 95 acre-ft |
| Normal Storage | 40 acre-ft |
| Surface Area | 7 acres |
| Drainage Area | 235 sq mi |
| Max Discharge | 260 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Grade Stabilization |
| Owner | Ltl Sniabar Cr Wrsd Sbds |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO12147 |
| Federal ID | MO12147 |
| More Info | State Dam Safety Program |