LDG has been serving bridge owners since 1989 and has developed an outstanding reputation for successful project completion. We have implemented a process which efficiently and effectively executes projects with respect to quality and schedule. LDG has completed over 151 local bridge replacement and/or rehabilitation projects since 1989. In total, LDG has completed over 390 bridge replacement and/or rehabilitation projects with PennDOT involvement over the last decade.

bridge rehabilition

Our resume includes 33 covered bridge projects, ranging from minor repairs to major rehabilitations. The historic importance of this work is a great source of pride for LDG and our communities.

bridge inspections

We have extensive experience completing NBIS bridge inspections for PennDOT and local municipalities. LDG has been performing bridge inspections since 1989 and currently inspects over 600+ local bridges within PennDOT Districts 3-0, 2-0, and 10-0. LDG has inspected over 5,000+ bridge structures and completed 730 load rating analyses without missing a single deadline.


  • 3-Dimensional Finite Element Analysis
  • Asset Management & Capital Improvement Planning
  • Bridge Design – Vehicular, Pedestrian, Railroad, Equestrian, Aqueducts
  • Bridge Rehabilitation
  • Bridge Load Rating Analysis
  • Bridge / Sign Safety Inspections
  • Construction Services
  • DEP Permitting
  • NPDES Permitting
  • Erosion & Sedimentation Control Plans
  • Feasibility Studies
  • Flood Studies
  • Geotechnical Investigation
  • Grant / Funding Assistance
  • Highway Design
  • Hydrologic & Hydraulic Studies
  • Preservation & Maintenance Programs
  • Pavement Design
  • Public Involvement
  • Public Utility Commission Coordination
  • Rails-to-Trails
  • Right-of-Way-Plus
  • Sign & Pavement Marketing Design
  • Traffic Control Plans
  • Utility Coordination
  • Design/Build
  • Grade Separation Structures
  • Bridge Rehabilitation/Widening