Project Description

The Washington Street Underpass project consists of widening and reconstructing Washington Street from Haryan Way to Lake Street. Washington Street will be lowered and a new railroad bridge will be constructed over Washington Street eliminating the current at-grade crossing.

  • New railroad bridge over Washington Street
  • ½ mile of new 4-lane concrete pavement
  • Temporary roadway runaround
  • Temporary railroad runaround (shoofly)
  • Temporary boarding platform at Metra station
  • Modified traffic signals at Lake Street
  • Landscaped median
  • New retaining wall on the south side of Washington Street with architectural reveals
  • New pump station to drain the new underpass roadway
  • Erosion and sediment control
  • New detention basin
  • New pedestrian accommodations
  • Reduce congestion and travel times
  • Improved vehicular and pedestrian safety


The Washington Street Underpass project is located along Washington Street from Haryan Way to Lake Street.  The grade separation is at the Canadian National (CN)/Metra railroad crossing.  The project is located in the Village of Grayslake, Lake County, Illinois.