Excellence in highway design is the hallmark of Mackin’s capabilities. From conceptual studies to preliminary engineering to final design, Mackin’s highway engineering professionals have designed over a thousand highway and roadway projects, which have collectively resulted in countless miles of transportation improvements across Pennsylvania.
Clients who have benefited from our services include PennDOT, the PA Turnpike Commission, county public works departments, transit authorities, metropolitan cities, developers and local municipalities. As a result, Mackin’s highway specialists have garnered a distinguished record of award-winning designs, and are widely recognized for their innovative contributions to the practice of highway engineering.
Services Offered
- Corridor Alignment Studies
- New Roadway Design
- Roadway Widening/Reconstruction Design
- Intersection Design
- ADA Ramp Design
- Interchange Design
- Roadway and Interchange Lighting Design
- Roadway Drainage and Post Construction Storm Water Management Design
- Erosion and Sediment Pollution Control Design
- Utility Relocation Coordination and Design
- PennDOT Highway Occupancy Permit Plans
- PennDOT Right-of-Way Plans
- Mass Haul Grading
