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SR 4 (East) Widening Project – Contra Loma Blvd. to G St.

The SR 4 (East) project widened SR 4 from a four-lane freeway facility to an eight-lane freeway facility from west of Contra Loma Boulevard to east of G Street.

  • Supplemental PR, PS&E
  • Environmental revalidation
  • Geometric alternative feasibility evaluation
  • BART median incorporation
  • Interchange reconstruction
  • Local street reconstruction
  • Traffic signal installation and modification
  • Multi-phased stage construction
  • Environmentally sensitive areas and constraints
  • Right of way delineation
  • Community participation and consensus
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