In a lead-in to infrastructure proposal's March 31 rollout, Biden cites needs in highways, water, schools and more.

Congress also is weighing a 50-state vehicle-miles-traveled pilot program in the coming highway bill.

Environment and Public Works Committee leaders meet with Biden, Harris, Buttigieg

Biden's DOT nominee is certain to be confirmed, Commerce Committee's top Republican says.

$10-billion allocation can go for payroll, operations, maintenance, but construction projects are eligible too.

If GOP holds Senate, speculation centers on Capito of W. Va. as new chair; if Democrats take over, Delaware's Carper will be chair.