John Speck Dam is an earth dam located in Grundy County, Missouri, built in 2000. It carries a Low hazard potential classification.
Dam profile
NID height · 28 ft28 ft tall and 275 ft long, taller than 62% 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 John Speck Dam
The primary purpose of John Speck 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 John Speck (private). It impounds the Tr-muddy near Trenton.
The dam stands 28 feet tall and stretches 275 feet across, creates a reservoir covering 2 acres, has a maximum storage capacity of 25 acre-feet, and collects water from a drainage area of 25 square miles. Completed in 2000, the structure is 26 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 09/15/2000. That was over 26 years ago.
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Location
| State | Missouri |
| County | Grundy |
| Nearest City | Trenton |
| River/Stream | Tr-muddy |
| Coordinates | 40.21580, -93.55368 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 28 ft |
| Dam Height | 27 ft |
| Dam Length | 275 ft |
| Year Completed | 2000 (26 years old) |
Storage & Hydraulics
| NID Storage | 25 acre-ft |
| Max Storage | 25 acre-ft |
| Normal Storage | 18 acre-ft |
| Surface Area | 2 acres |
| Drainage Area | 25 sq mi |
| Max Discharge | 33 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Grade Stabilization |
| Owner | John Speck |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 09/15/2000 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO51210 |
| Federal ID | MO51210 |
| More Info | State Dam Safety Program |