A plan to put an interstate between Las Vegas and Phoenix is gaining steam, but there is still a bumpy road ahead.
Transportation officials in Nevada and Arizona are studying potential routes and hope to put a price tag on the planned stretch of Interstate-Eleven within the next few months. The road already has big-name support from business leaders and the Republican governors of both states. But federal funding for highways is overstretched, and there has been little progress toward upgrading the 20-year-old gas tax formula that feeds the account. Project proponents say they will have to get creative to make the 300-mile stretch a reality. The two cities are linked by a highway that is two lanes in some places, and interstate proponents say its quality hampers the region's economic growth.