I-29 Improvement Project

I-29 Construction

Hamilton Blvd. at I-29

July 7-Nov. 7 - Construction work on Hamilton Boulevard at Interstate 29 (exit 149) in Sioux City requires closing the Hamilton Boulevard to traffic beginning at 12:01 a.m. Tuesday, July 7, until Saturday, Nov. 7, weather permitting, according to the Iowa Department of Transportation’s District 3 Office.

During this closure, the I-29 ramps at Hamilton Boulevard will remain open. Hamilton Boulevard traffic wishing to access northbound I-29 will use this detour (see map below) and traffic wishing to access southbound I-29 will use this detour (see map below).


NB detour View larger map

SB detour View larger map


2020 construction project update

Replacement of the fire damaged, I-29 northbound bridge will occur in 2020. Construction work will include, placement of median barrier work, aesthetic work and permanent pavement markings.

Reconstruction of Hamilton Blvd., between the ramp terminals, will begin after the July 4 holiday. The work is anticipated to be complete November 1.



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2020 Construction Overview

Replacement of fire damaged bridge

Replacement of fire damaged bridge in 2020

Hamilton Blvd. construction

Hamilton Blvd. Construction in 2020
orange line  2020