AUGUSTA — Gov. Paul LePage will publicly sign into law legislation allocating $300,000 to study the feasibility of an east-west highway.

The governor plans to sign the bill this afternoon in the State House.

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

The study will cost $300,000, which must be paid back to the state by the developer if the highway gets the go-ahead.