Senate Majority Leader Harry ReidHarry ReidIf Gorsuch pick leads to 'crisis,' Dems should look in mirror first Senate confirms Mulvaney to be Trump’s budget chief Democrats declare victory after Puzder bows out MORE (D-Nev.) announced a deal with Republicans on Wednesday that paves the way for a final vote on a bill to fund federal transportation projects through next spring.

The deal will allow votes on an alternative bill offered by Sens. Barbara BoxerBarbara BoxerCarly Fiorina 'certainly looking at' Virginia Senate run Top Obama adviser signs with Hollywood talent agency: report 
Democrats vie for chance to take on Trump as California governor MORE (D-Calif.), Tom CarperTom CarperSenate advances Trump's Commerce pick Warren: Trump's EPA pick the 'attorney general for Exxon' Overnight Energy: EPA pick Pruitt set for Friday vote | Dems plan all-night protest | Trump nixes Obama coal mining rule MORE (D-Del.) and Bob CorkerBob CorkerRepublicans play clean up on Trump's foreign policy GOP Congress unnerved by Trump bumps Trump makes nuclear mistake on arms control treaty with Russia MORE (R-Tenn.) that would fund the federal Highway Trust Fund only until Dec. 31.

ADVERTISEMENT
It also sets up a vote on amendments offered by Sens. Mike LeeMike LeeTop antitrust senators call for Sessions to scrutinize AT&T-Time Warner merger Public lands dispute costs Utah a major trade show GOP senators unveil bill to give Congress control of consumer bureau budget MORE (R-Utah) and Pat Toomey (R-Pa.).

A final vote on the underlying House bill, which is backed by the White House, could come Thursday.

The House bill would provide $10.9 billion to fund projects. It would use a number of offsets to pay for the costs of the bill. Without action by Congress, the fund would have gone bankrupt next month, ending funding for projects. 

“Allowing the Highway Trust Fund to run dry would slam the breaks on critical infrastructure projects across the land,” Senate Finance Committee Chairman Ron WydenRon WydenSenate Dems move to nix Trump's deportation order DNI confirmation hearing expected on Senate return Senate confirms Mnuchin as Treasury secretary MORE (D-Ore.) said. “It is nonnegotiable that Congress is going to prevent that from happening.”

The trust fund gets its money from the 18.4 cents per gallon gas tax, which has struggled to keep up with the need for infrastructure spending projects as cars grow more fuel-efficient.

Most of the costs of the House bill are offset through "pension smoothing," which some senators in both parties have derided as a budget gimmick. Those senators want to only extend funding until December so that Congress is under pressure to work on a long-term highway bill after the midterm elections.

“Many claim that budget gimmicks should not be used as offsets to pay for spending.” Corker said. “I have long been against the disgraceful practice of spending money today and paying for it in the future. It’s shameful, it’s irresponsible, and it’s generational theft.”

— Keith Laing contributed to this article.