Instant Tang is an earth dam located in Carter County, Montana, built in 1954. It carries a Low hazard potential classification.
Dam profile
NID height · 20 ft20 ft tall and 1,200 ft long. 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 Instant Tang
The primary purpose of Instant Tang 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 Turbiville Ranch Inc (private). It impounds the Middle Slick Creek near Marmouth South Dakota.
The dam stands 20 feet tall and stretches 1,200 feet across, has a maximum storage capacity of 619 acre-feet, and collects water from a drainage area of 4 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.
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Location
| State | Montana |
| County | Carter |
| Nearest City | Marmouth South Dakota |
| River/Stream | Middle Slick Creek |
| Coordinates | 45.71930, -104.11510 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Dam Length | 1,200 ft |
| Year Completed | 1954 (72 years old) |
Storage & Hydraulics
| NID Storage | 619 acre-ft |
| Max Storage | 619 acre-ft |
| Normal Storage | 317 acre-ft |
| Drainage Area | 4 sq mi |
| Max Discharge | 1,000 cfs |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Turbiville Ranch Inc |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT03075 |
| Federal ID | MT03075 |
| More Info | State Dam Safety Program |