John Simpson Dam is an earth dam located in Caldwell County, Missouri, built in 1954. It carries a Low hazard potential classification.
Dam profile
NID height · 16 ft16 ft tall. 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 Simpson Dam
The primary purpose of John Simpson Dam is fire protection, stock, or small fish pond. The dam maintains a small impoundment used for fire suppression, livestock watering, or as a fish pond. The dam is owned by John Simpson (private). It impounds the Tr-little Otter Creek near Dawn.
The dam stands 16 feet tall, creates a reservoir covering 15 acres, has a maximum storage capacity of 128 acre-feet, and collects water from a drainage area of 252 square miles. Completed in 1954, 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.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Missouri |
| County | Caldwell |
| Nearest City | Dawn |
| River/Stream | Tr-little Otter Creek |
| Coordinates | 39.75167, -93.95541 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 16 ft |
| Dam Height | 16 ft |
| Year Completed | 1954 (72 years old) |
Storage & Hydraulics
| NID Storage | 128 acre-ft |
| Max Storage | 128 acre-ft |
| Normal Storage | 100 acre-ft |
| Surface Area | 15 acres |
| Drainage Area | 252 sq mi |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | John Simpson |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO10381 |
| Federal ID | MO10381 |
| More Info | State Dam Safety Program |