Terry & Janet Larison is an earth dam located in Worth County, Missouri, built in 1997. It carries a Low hazard potential classification.
Dam profile
NID height · 37 ft37 ft tall and 510 ft long, taller than 83% 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 Terry & Janet Larison
The primary purpose of Terry & Janet Larison 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 Larison (private). It impounds the X Branch near Alanthus Grove.
The dam stands 37 feet tall and stretches 510 feet across, creates a reservoir covering 33 acres, has a maximum storage capacity of 165 acre-feet, and collects water from a drainage area of 1,203 square miles. Completed in 1997, the structure is 29 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 37 feet, this dam is taller than 83% of dams nationwide.
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Location
| State | Missouri |
| County | Worth |
| Nearest City | Alanthus Grove |
| River/Stream | X Branch |
| Coordinates | 40.51973, -94.58369 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 37 ft |
| Dam Height | 34 ft |
| Dam Length | 510 ft |
| Year Completed | 1997 (29 years old) |
Storage & Hydraulics
| NID Storage | 165 acre-ft |
| Max Storage | 165 acre-ft |
| Normal Storage | 72 acre-ft |
| Surface Area | 33 acres |
| Drainage Area | 1,203 sq mi |
| Max Discharge | 362 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Grade Stabilization |
| Owner | Larison |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO50832 |
| Federal ID | MO50832 |
| More Info | State Dam Safety Program |