Charleston County's road-building program, RoadWise, has completed six large projects since 2010, and five more are in the works, according to county officials.

Steve Thigpen, the county's director of transportation development, provided an update on the program to County Council's Finance Committee Thursday.

RoadWise projects are paid for with the half-cent sales tax, which county voters approved in 2004.

County Administrator Kurt Taylor said "the program led us into a whole new endeavor."

Thigpen said the county previously used a lot of consultants for the program, but it began transferring those duties to county staffers in 2010. That process is nearly complete.

The county has made substantial progress on the widening of Bees Ferry Road in recent months, he said. In May, it will activate a traffic light at the intersection of Bees Ferry and U.S. Highway 17. The project will be substantially complete in September.

Improvements to the intersection of Folly and Camp roads on James Island also have begun, Thigpen said. Utility relocations currently are underway. The county soon will accept construction bids.

And construction on a traffic circle near Bees Ferry Road in West Ashley will begin later this month.

Two other projects currently are being designed. One of those is the widening of Harbor View Road on James Island. The other includes improvements to Maybank Highway, including building a "pitchfork" at the intersection of Maybank Highway and River Road, which will better disperse traffic.

County Council will continue discussing the Maybank Highway project at its April 17 Finance Committee meeting.

Reach Diane Knich at 843-937-5491 or on Twitter at @dianeknich.