The Arkansas State Highway and Transportation Department says it has identified a preferred alternative for a new connection from Interstate 40 to Highway 25 in northwestern Conway.
Highway officials say the preferred route is about 1.1 miles long and will cost about $5.5 million to build, compared to 1.3 miles and $6.5 million for another option.
Officials say the preferred route will also relocate fewer residents than the other option.
The State Highway and Transportation Department will share costs for the new roadway with the city of Conway and Faulkner County.
A new interchange on I-40 opened to traffic in 2008 about a mile west of a partial interchange that previously provided interstate access to Highway 25 north.
The interchange was designed to accommodate access to Highway 25 later.