Project Background

  • 2004-2010 study (Thru the Valley) developed different alternatives to improve I-75 from Paddock Road to I-275
    • The project was divided into eight phases for construction (see right)
      • Phase 7 was absorbed into adjacent phases once the project was phased for construction
    • Phase 5 and 6 proposed four lanes for I-75 northbound and four lanes for I-75 southbound (see below "Original Alignment")
  • During the design process for Phase 6, the Project Team became aware of additional costs and impacts not known during alternative development including relocating overhead electrical transmission lines, property/bridge impacts, and a 6-year construction time
  • Considering the vacant land along the I-75 southbound split, ODOT decided to investigate a new alternative (see below "New Unified Alignment - Alternative 1") to unify the interstate along the I-75 southbound alignment.
  • Feasibility Study for the new alternative was completed in 2020 and determined the new alternative would:
    • Impact fewer buildings
    • Can be constructed in a shorter time
    • Can save approximately $60 million in construction costs