Hellmuth,george Upper is an earth dam located in Shannon County, Missouri, built in 1968. It carries a Low hazard potential classification.
Dam profile
NID height · 20 ft20 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 Hellmuth,george Upper
The primary purpose of Hellmuth,george Upper is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by George Hellmuth (private). It impounds the Tr-sinking Creek near Round Spring.
The dam stands 20 feet tall, creates a reservoir covering 17 acres, has a maximum storage capacity of 182 acre-feet, and collects water from a drainage area of 410 square miles. Completed in 1968, 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.
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Location
| State | Missouri |
| County | Shannon |
| Nearest City | Round Spring |
| River/Stream | Tr-sinking Creek |
| Coordinates | 37.35424, -91.36838 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Year Completed | 1968 (58 years old) |
Storage & Hydraulics
| NID Storage | 182 acre-ft |
| Max Storage | 182 acre-ft |
| Normal Storage | 113 acre-ft |
| Surface Area | 17 acres |
| Drainage Area | 410 sq mi |
Ownership & Safety
| Purpose | Recreation |
| Owner | George Hellmuth |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO31148 |
| Federal ID | MO31148 |
| More Info | State Dam Safety Program |