Idaho’s Single Largest Highway Project

The Flying Wye is the single largest highway project in Idaho’s history.  McAlvain and Nelson Construction entered into a Joint Venture for stage one of the Flying Wye, replacing exits and merge lanes with a three-lane elevated flyover bridge heading east on I-84.  Stage one also involved widening the connector to three lanes in both directions and adding on-ramps and lanes to reduce congestion and improve safety.  More than 103,000 cubic yards of concrete was used in stage one with more than 330,000 cubic yards of earth excavated.