The Pennsylvania Department of Transportation (PennDOT) will begin repairs on a busy 10-mile section of Interstate 81 in the Carlisle area of Cumberland County. The work is needed to repair deteriorated pavement on the highway, which accommodates more than 65,000 vehicles daily. Also included in the project is the replacement of bridge deck that carries northbound I-81 traffic over the Conodoguinet Creek.
The project extends from just south of Exit 48 (Route 74) and to just north of Exit 57 (Route 114). This is major highway improvement project made possible by Act 89, the new transportation funding law enacted in November 2013.
Motorists are advised that they may encounter single-lane traffic restrictions during the overnight hours between 9 PM and 6 AM in one or both directions of I-81. Motorists are asked to be alert to this construction operation, to pay attention to the work zone signing, and to slow down when approaching and traveling through the work area for their safety as well as for the safety of the work crews. More than 65,000 vehicles travel on this portion of I-81 daily – 32,583 vehicles in the northbound and 32,718 vehicles in the southbound direction. Trucks account for 27 percent of these traffic volumes.
PennDOT has awarded a $14.2 million contract to Hempt Bros., Inc. of Camp Hill, Pa., for the project. The southern half involves concrete slab jacking, slab stabilization, concrete patching and diamond grinding to repair and help preserve the concrete pavement. The northern half of the project involves roadway base repair, the removal of the old asphalt surface, and a new asphalt overlay. Also included is the replacement of the bridge deck on the structure that carries northbound I-81 over the Conodoguinet Creek.
The work that starts on Monday (3/16/15) night will establish a new traffic pattern for the northbound bridge over the Conodoguinet Creek. The two lanes of northbound traffic will be shifted to the right and concrete barrier will be installed to separate traffic from the work area and the construction crews that will be working on replacing the bridge deck. The plan calls for the deck to be replaced one-third at a time. Once the traffic pattern has been established and the concrete barrier installed, the bridge work will be conducted during daylight hours.
The pavement repairs on the I-81 roadway will start the following week.
The overall project is scheduled to be completed by early December of this year.