Ada County Highway District

Downtown State St. & 9th St. Reconstruction Projects

General Description:

  • Reconstruct State/16th (asphalt), replace ramps, signal work, add bioretention curb extensions
  • Reconstruct State St, 14th St to 4th St with concrete paving, including all the intersections
    • Includes replacing ramps, signal work, add bioretention curb extensions
  • Widening State St between 14th and 12th to 5 lanes
    • Adding a left turn lane on both sides of 13th
    • Adding overhead RRFB crossing at 14th and 12th
    • Includes CCDC streetscaping
  • Reconstruct State St, east of 4th to 2nd with asphalt paving
    • Includes replacing ramps add bioretention curb extensions
  • Reconstruct 9th St, State St to Bannock St with concrete paving
    • Includes the Jefferson St intersection, does not include the Bannock St intersection (that's another project)
    • Includes replacing ramps, signal work, add bioretention curb extensions

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