A bill to require a feasibility study of a proposed four-lane expressway between Scottsbluff, Nebraska, and Rapid City, South Dakota.

Directs the Secretary of Transportation to study and report to the Congress on the feasibility of constructing a four-lane expressway linking Scottsbluff, Nebraska, and Rapid City, South Dakota. Limits the Federal contribution to such study to 80 percent of the cost. Authorizes appropriations.