DHA’s environmental services department provides documentation in compliance with both CEQA and NEPA for transportation projects. Working side by side in the same office as our design team ensures that our environmental documents are consistent with project design requirements, minimize environmental mitigation measures, and avoid delays to overall project schedules. DHA’s environmental staff specialize in the following:

  • Technical Studies
  • Environmental Clearance Documentation
  • Permits
  • Schedule Management
  • Preliminary Planning and Constraints Analysis
  • Technical Review
  • Construction Monitoring

List of Projects | Environmental

  • 11th Street East Tracy Overhead | City of Tracy
  • Air Park Drive Bridge over Oceano Beach Lagoon | San Luis Obispo County
  • Anapamu Street Bridge | City of Santa Barbara
  • Auburn Boulevard Bridge over Arcade Creek | City of Sacramento
  • Avila Drive Bridge over San Luis Obispo Creek | San Luis Obispo County
  • Bell Road Bridge over Big Indian Creek | Amador County
  • Bunker Hill Road Bridge over Rancheria Creek | Amador County
  • Brooktrails Second Access | Mendocino County
  • Buck Avenue Bridge over Alamo Creek | City of Vacaville
  • Carpinteria Avenue Bridge over Carpinteria Creek | City of Carpinteria
  • Clay Street Realignment and Bridge Replacement | City of Placerville
  • De La Guerra Street Bridge over Mission Creek | City of Santa Barbara
  • Dry Creek Bridge Replacements at Millerton Road | Fresno County
  • Fiddletown Road Bridge over North Fork of Dry Creek | Amador County
  • Gilbert Road Bridge over TID Ceres Main Canal | Stanislaus County
  • Golden State-Golf-Berkeley Intersection | Stanislaus County
  • Gutierrez Street Bridge over Mission Creek | City of Santa Barbara
  • Hickman Road Bridge over Tuolumne River | Stanislaus County
  • Iowa City Road Bridge Replacement | Yuba County
  • Little Dry Creek Bridges | Fresno County
  • Mariposa Avenue Safe Routes to School, Phase 3 | City of Citrus Heights
  • Montecito-Yanonali Street Bridge | City of Santa Barbara
  • North County Corridor | Stanislaus County
  • Oak Creek and Buckeye Road Bridge Replacements | Mariposa County
  • Old Amador Road Bridge over Rancheria Creek | Amador County
  • R Street Improvements, Phase 3 | City of Sacramento
  • Ronan Creek Channel and Lions Creek Trail | City of Gilroy
  • Sacramento Street Bridge | City of Vallejo
  • Scales Road Bridge over Slate Creek | Yuba County
  • South Bay Boulevard Bridge over Los Osos Creek | San Luis Obispo County
  • Spring Valley Bridge Replacements | Lake County
  • Stony Point Road Reconstruction | City of Santa Rosa
  • Walerga Road Bridge Replacement at Dry Creek | Placer County
  • Walnut Grove Bridge Replacement | San Joaquin County
  • Walnut Grove Road Bridge | San Joaquin County
  • Wimer Road Bridge over North Branch of Indian Creek | San Joaquin County