COLUMBIA — State funding has been approved for an interchange in Dillon County for the long-planned Interstate 73.

The State newspaper reported Friday that the South Carolina Transportation Commission has agreed to spend $105 million on a portion of I-73.

The interstate would stretch from the heart of the state’s tourism industry across six states, from Myrtle Beach to Michigan. Its 90-mile trek through four South Carolina counties is expected to cost more than $2 billion.

A group that supports the project says the only remaining South Carolina leg to be funded stretches about 30 miles from Latta to Galivants Ferry.

A 2009 study says the South Carolina leg of I-73 could create thousands of jobs and generate more than $1 billion in household income during construction.