DHA’s roadway experience includes a wide range of transportation infrastructure work. From large corridor projects with numerous interchanges to local agency road widening projects in challenging terrain, we have the know-how to deliver any transportation element a project may require. Our transportation and roadway engineers specialize in the following:

  • Feasibility and Advanced Planning Studies
  • Road Widening and Rehabilitation
  • Interchanges, Arterial, Collector, and Local Streets
  • Project Study Reports and Project Reports
  • Utility Coordination

List of Projects | Transportation

  • 11th Street East Tracy Overhead | City of Tracy
  • 11th Street/MacArthur Drive Intersection | City of Tracy
  • Antone Raymus Expressway | City of Manteca
  • Brooktrails Second Access | Mendocino County
  • Capital Southeast Connector | Capital Southeast Connector JPA
  • Clay Street Realignment and Bridge Replacement | City of Placerville
  • Cook Riolo Pathway | Placer County
  • Dowd Road Bridge over Yankee Slough | Placer County
  • Ekwill Street and Fowler Road Extension | City of Goleta
  • Golden State-Golf-Berkeley Intersection | Stanislaus County
  • Goleta/US 101 Overcrossing | City of Goleta
  • Hollister Class I Bicycle/Pedestrian Path Improvements | City of Goleta
  • I-80/SR 65 Interchange Improvements | PCTPA
  • Manning Avenue Bridge over Travers Creek | Fresno County
  • Mare Island Bridge West Span | City of Vallejo
  • Mariposa Avenue Safe Routes to School, Phase 3 | City of Citrus Heights
  • North County Corridor | Stanislaus County
  • San Tomas Expressway Widening and Spur Trail | Santa Clara County
  • Sheldon Road and Bradshaw Road Bridge Replacement and Intersection Improvements | City of Elk Grove
  • US 50/Empire Ranch Road Interchange | City of Folsom
  • Walerga Road Bridge Replacement at Dry Creek | Placer County