Illinois Department of Transportation, Erica Borggren, Acting Secretary
Patrick J. Quinn, Governor
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  • Develop purpose and need for project
  • Estimate project's initial cost

YEARS 2 - 3

PHASE 1 ENGINEERING—may take 1–3 years for completion


  • Conduct "scoping" (Inviting public and
    private agencies to identify alternatives,
    impact and issues)
  • Conduct location studies (in conjunction
    with environmental studies)
      – Complete bridge inspection report
      – Finish bridge hydraulic survey, analysis
      – Review accident records
      – Review maintenance records, old plans
      – Identify applicable policies ( e.g., new
    construction or resurfacing, restoration
         or rehabilitation–"3R")

      – Develop alternative alignments as
         applicable, avoiding and minimizing
         impact if feasible and practicable
      – Identify potential right-of-way
         requirements for each alternative
  • Conduct environmental impact studies
    (in conjunction with location studies)
      – Identify alternatives
      – Conduct field inventories to identify
         protected endangered and otherwise
         important resources 
      – Identify and evaluate impact of each
       alternative on the natural and social
         environment, including wetlands,
         plants, animals, air and water quality,
    archaeological and historic sites,
         agriculture and communities 
      – Coordinate with the following:
    Natural Resources – for endangered
    species, wetlands, nature preserves,
         natural areas, wildlife habitats

    Environmental Protection Agency – 
    for air quality, contaminated properties,
         leaking underground tanks, National
         Pollutant Discharge Elimination
         System Permits

    Agriculture – for farmland preservation
    Historic Preservation Agency – for
         historic structures, archaeological sites
  Fish and Wildlife Service – for
             endangered species, wildlife habitats,
             and wetlands

             Corps of Engineers – for stream permits
             and navigable rivers
National Park Service - for park land
Agriculture – for farmland preservation
Environmental Protection Agency
             for wetlands, stream permits,
             Environmental Impact Statement reviews
  Advisory Council on Historic
Preservation – for historic structures,
             archaeological sites
Coast Guard – for navigable rivers,
             bridge permits
             OTHER ENTITIES
             Native American tribes – for Native
             American lands, artifacts, remains,
          – Adjust alternatives to minimize impacts
          – Develop mitigation plan for impacts
          – Draft environmental impact documents
  • Conduct hearings or informational meetings and circulate reports for: 
    General public
    Local officials
    Affected property owners
    Special interest groups
  • Complete PHASE 1 ENGINEERING and
    environmental analysis; finalize reports
  • If federally funded, Federal Highway
    approves final reports


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