PTC Total Reconstruction MP 199-213

As part of their on-going efforts to modernize and update their roadway infrastructure, the Pennsylvania Turnpike Commission identified the section of Mainline between Mileposts 199.30 and 213.83 for a total roadway reconstruction. This section lies within Franklin and Cumberland Counties in southcentral Pennsylvania and includes the Blue Mountain Interchange.

As a subconsultant to KCI Technologies, Inc., Gibson-Thomas provided:

  • Stream surveys and hydrologic and hydraulic analyses for 25 structures
  • Three stream relocation designs
  • Drainage designs
  • Stormwater management designs
  • Erosion and sedimentation control plans
  • PADEP Joint Permit and NPDEPS permit preparation for seven miles of the corridor
  • Structural design for the extension or replacement of 20 reinforced concrete arch culverts and one slab bridge
  • DARWin pavement design
  • Utility coordination

As part of the reconstruction, the existing 10-foot median was reconstructed to 46 feet to incorporate a 3rd travel lane in each direction.

Construction of the last section within of this corridor was completed in 2019.

Project Gallery

Gibson-Thomas is a multi-discipline consulting engineering firm established in 1916 in Latrobe, Pennsylvania. Our past experience, key staff and commitment to total client satisfaction are the major factors that our clients consider when contracting with Gibson-Thomas.

Corporate Office
    • 1004 Ligonier Street
      Latrobe, PA 15650
    • P: 724-539-8562
Pennsylvania Offices
  • Fayette Office
    • Lemont Furnace, PA
    • P: 724-323-8020
  • Harrisburg Office
    • Camp Hill, PA
    • P: 717-612-9880
  • Indiana Office
    • Indiana, PA
    • P: 724-471-2246
  • Pittsburgh Office
    • Wexford, PA
    • P: 724-935-8188
  • Washington Office
    • Eighty Four, PA
    • P: 724-249-2603
Florida Office
    • Fort Myers, FL
    • P: 239-776-2908