Council Bluffs Interstate System Improvements

Segment 4 - Concept 1

Broadway System Interchange - Segment 4 - Refined Concept 1
Key Features of Concept 1:
  • three lanes in each direction on I-29 south of the I-29/I-480/West Broadway system interchange;
  • two lanes in each direction on I-29 north of the I-29/I-480/West Broadway system interchange;
  • auxiliary exit only lanes as needed on I-29;
  • 35th Street interchange would be closed;
  • Avenue G interchange would be reconstructed as a “split-diamond” and would provide one-way frontage roads between Avenue G and Ninth Avenue with access to West Broadway; and
  • 41st Street interchange would be relocated to 40th Street.

Click here to download a PDF (1.0 Mb) with a larger image of Concept 1 for Segment 4.