Harold Kelly Dam is an earth dam located in Grundy County, Missouri, built in 1995. It carries a Low hazard potential classification.
Dam profile
NID height · 30 ft30 ft tall and 249 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 Harold Kelly Dam
The primary purpose of Harold Kelly Dam 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 Harold Kelly (private). It impounds the Tr-medicine near Laredo.
The dam stands 30 feet tall and stretches 249 feet across, creates a reservoir covering 5 acres, has a maximum storage capacity of 62 acre-feet, and collects water from a drainage area of 173 square miles. Completed in 1995, the structure is 31 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. The most recent inspection on record was 09/26/1995. That was over 31 years ago.
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Location
| State | Missouri |
| County | Grundy |
| Nearest City | Laredo |
| River/Stream | Tr-medicine |
| Coordinates | 40.08757, -93.37038 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 30 ft |
| Dam Height | 27 ft |
| Dam Length | 249 ft |
| Year Completed | 1995 (31 years old) |
Storage & Hydraulics
| NID Storage | 62 acre-ft |
| Max Storage | 62 acre-ft |
| Normal Storage | 41 acre-ft |
| Surface Area | 5 acres |
| Drainage Area | 173 sq mi |
| Max Discharge | 40 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Grade Stabilization |
| Owner | Harold Kelly |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 09/26/1995 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO51206 |
| Federal ID | MO51206 |
| More Info | State Dam Safety Program |