AUGUSTA — Legislation seeking $300,000 for an east-west highway feasibility study has been sent to Maine Gov. Paul LePage, who supports the bill.

The state Senate today gave final approval to the bill by an 18-14 vote, sending it to the governor.

Supporters said $300,000 for the study is already available in state highway funds. An amendment that says the $300,000 must be paid back by the developer if the highway gets the go-ahead.

The idea of a highway across Maine connecting New Brunswick with Quebec has been discussed for decades. The latest plan calls for a privately funded highway maintained with tolls. Supporters estimate it would cost $2 billion.