Larry Summers is an earth dam located in Harrison County, Missouri, built in 1996. It carries a Low hazard potential classification.
Dam profile
NID height · 30 ft30 ft tall and 277 ft long, taller than 68% 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 Larry Summers
The primary purpose of Larry Summers 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 Larry Summers (private). It impounds the Danaby Creek near Blythedale.
The dam stands 30 feet tall and stretches 277 feet across, creates a reservoir covering 1 acres, has a maximum storage capacity of 16 acre-feet, and collects water from a drainage area of 32 square miles. Completed in 1996, the structure is 30 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 | Harrison |
| Nearest City | Blythedale |
| River/Stream | Danaby Creek |
| Coordinates | 40.46787, -93.85800 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 30 ft |
| Dam Height | 27 ft |
| Dam Length | 277 ft |
| Year Completed | 1996 (30 years old) |
Storage & Hydraulics
| NID Storage | 16 acre-ft |
| Max Storage | 16 acre-ft |
| Normal Storage | 13 acre-ft |
| Surface Area | 1 acres |
| Drainage Area | 32 sq mi |
| Max Discharge | 10 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Grade Stabilization |
| Owner | Larry Summers |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO50670 |
| Federal ID | MO50670 |
| More Info | State Dam Safety Program |