Omaha, Neb. – A draft Integrated Feasibility Report and Environmental Assessment (IFR/EA) has been prepared for the BIA Route 2 streambank erosion project. Conducted in accordance with Section 14 of the Flood Control Act of 1943, the U.S. Army Corps of Engineers (USACE) has partnered with the Cheyenne River Sioux Tribe to investigate erosion issues along the Moreau River threatening the BIA Route 2 roadway and a Tribal rural water supply line near On The Tree, South Dakota (SD).
The report has been prepared in accordance with the National Environmental Policy Act of 1969, as amended, and other applicable environmental laws and regulations.
The specific area of concern (approximately 45.179040, -101.129884) includes a section of BIA Route 2 (On The Tree Road) located about four miles east and 1.5 miles south of the junction of Highway (HWY) 63-BIA Route 2 between Green Grass and White Horse, SD.
The Tentatively Selected Plan (TSP) includes a 3:1 sloped riprap revetment with a three-foot by five-foot toe along approximately 1,250 linear feet of riverbank, and an upstream rock refusal to prevent flanking.
The public is encouraged to provide comments on the draft IFR/EA which is available for viewing at the links below. The public & agency comment period opens 18 April 2025 and closes 18 May 2025.
To submit a comment, please email: CENWO-CW-PlanningOutreach@usace.army.mil
Or mail to:
U.S. Army Corps of Engineers, Omaha District
ATTN: CENWO-PMA-A (BIA Route 2)
1616 Capitol Ave
Omaha, NE 68102