The Virginia Senate passed a nickel gas tax increase on Wednesday that will help generate $4.5 billion for crumbling roads and bridges around the state over the next five years.

But that proposal differs drastically from Gov. Bob McDonnell’s House-approved plan to eliminate the gas tax and raise the sales tax to bring in $3 billion for transportation. If lawmakers cannot bridge that gap before the General Assembly session ends in 10 days, they’ll leave Richmond once again without solving the roads crisis.