Tribe No.2
Tribe No.2 is an earth dam located in Ziebach County, South Dakota, built in 1956. It carries a Low hazard potential classification.
About Tribe No.2
The primary purpose of Tribe No.2 is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by Cheyenne River Sioux Tribe (federal). It impounds the Tr Moreau.
The dam stands 23 feet tall and stretches 570 feet across, and has a maximum storage capacity of 173 acre-feet. Completed in 1956, 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 | South Dakota |
| County | Ziebach |
| Nearest City | None |
| River/Stream | Tr Moreau |
| Coordinates | 45.10666, -101.73499 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 23 ft |
| Dam Height | 23 ft |
| Dam Length | 570 ft |
| Year Completed | 1956 (70 years old) |
Storage & Hydraulics
| NID Storage | 173 acre-ft |
| Max Storage | 173 acre-ft |
| Normal Storage | 106 acre-ft |
| Max Discharge | 3,000 cfs |
Ownership & Safety
| Purpose | Water Supply |
| Owner | CHEYENNE RIVER SIOUX TRIBE |
| Owner Type | Federal |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SD00517 |
| Federal ID | SD00517 |
| More Info | State Dam Safety Program |