• Corporate HQ, NY
  • Melville, NY
  • Iselin, NJ
  • Ossining, NY
  • Mount Laurel, NJ

PTC Rehabilitation/Replacement of EB-103


 


HAKS provided land-surveying services on an as-needed basis for the Pennsylvania Turnpike Commission (PTC) to obtain existing topography surrounding the proposed rehab/replacement of EB-103, the bridge carrying the turnpike over the Norfolk Southern Railroad in Middlesex Township in Cumberland County, Pennsylvania.

HAKS reviewed documents and plans and obtained the necessary maps for underground utilities utilizing the PA One-Call system. We used Leica 1230 GPS survey-grade equipment and conventional total stations to establish horizontal control working from the existing turnpike baseline. GPS observations were post-processed using the latest Leica LGO software. Additional control points were set for future construction of the site on a closed traverse and bench loop using a Topcon digital level.

To eliminate the need for any lane closure, a Leica 3D laser scanner was used to generate point cloud data of the existing mainline turnpike. QA/QC procedures were performed to ensure the accuracy of the scanner using reflectorless surveying instrument. Coordination and permits were obtained from the Norfolk Southern Railroad Company to obtain the existing clearances of the bridge over the existing railroad tracks. North and south views of the bridge were generated using the Point Cloud data at the existing railroad bridge.

HAKS completed the topography plans in AutoCAD Civil 3D (2011) using the PTC Engineering Department Computer Aided Drafting and Design Procedures Manual.