The state Department of Transportation is advising motorists heading to the National Apple Harvest Festival in Adams County this weekend of a construction project that could cause delays.

Route 234 just east of Arendtsville is down to one lane for a $1.5 million bridge replacement project.

A traffic signal controls the direction of traffic crossing the bridge. To help facilitate traffic flow for the festival this weekend and Oct. 13 and 14, the traffic signal will be placed on flash and fire police will direct traffic through the construction project, according to PennDOT.

Organizers of the apple festival at the South Mountain Fairgrounds encourage motorists to take alternate routes and follow the signs to designated parking areas.

Festival traffic coming in on Route 234 from the east should follow Heckenluber Road to the parking areas.

Traffic coming in on Route 34 from the north can take a right onto Quaker Valley Road to the parking areas.

Festival traffic coming from Route 30 on Cashtown from the southwest can take a left onto Boyer Nursery Road to the parking areas.

Traffic leaving the parking areas and following Route 234 into Arendtsville will be directed onto Gettysburg Street and then to Cherry Street.