A proposed gasoline tax increase to pay for road and bridge construction cleared its first hurdle in the Alabama Legislature today. The House Transportation, Utilities and Infrastructure Committee approved the bill, sending it to the full House of Representatives for a vote that could come in early April. The proposal would raise the gasoline tax by 6 cents per gallon. The tax would then be adjusted every four years to equal the average tax in Alabama's four border states. The committee-passed bill would also place an annual fee on vehicles that run solely on alternative fuels, $100 for each private passenger and $150 for commercial vehicles. The committee approved an amendment to the original bill that exempted hybrids from the annual fee. While the bill moved quickly out of committee today, proponents said they do not expect a floor vote until after lawmakers return from their spring break, now scheduled for March 28.