The proponent of a proposed railroad bypass route around Chicago has been directed by the U.S. Surface Transportation Board to provide additional information.
Great Lakes Basin Transportation will have until November to respond.
The firm has proposed a freight-only line of 280 miles that would extend from LaPorte, Indiana, to Milton, Wisconsin.
Great Lakes said the line would help alleviate congestion in Chicago. Some NIMBY groups have expressed opposition to the rail line and the Class 1 railroads in Chicago have been lukewarm at best toward the proposed route.