Hoover-frankum Watershed Dam A-23 is an earth dam located in Nodaway County, Missouri, built in 1966. It carries a Low hazard potential classification.
Dam profile
NID height · 32 ft32 ft tall and 540 ft long, taller than 74% 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 Hoover-frankum Watershed Dam A-23
The primary purpose of Hoover-frankum Watershed Dam A-23 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 Hoover-frankum Wrsd Subd (local government). It impounds the Tr-mill Creek near St Joseph.
The dam stands 32 feet tall and stretches 540 feet across, creates a reservoir covering 2 acres, has a maximum storage capacity of 114 acre-feet, and collects water from a drainage area of 38 square miles. Completed in 1966, 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.
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Location
| State | Missouri |
| County | Nodaway |
| Nearest City | St Joseph |
| River/Stream | Tr-mill Creek |
| Coordinates | 40.45651, -95.13337 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 32 ft |
| Dam Height | 30 ft |
| Dam Length | 540 ft |
| Year Completed | 1966 (60 years old) |
Storage & Hydraulics
| NID Storage | 114 acre-ft |
| Max Storage | 114 acre-ft |
| Normal Storage | 31 acre-ft |
| Surface Area | 2 acres |
| Drainage Area | 38 sq mi |
| Max Discharge | 695 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Grade Stabilization |
| Owner | Hoover-frankum Wrsd Subd |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO10704 |
| Federal ID | MO10704 |
| More Info | State Dam Safety Program |