Phase 11

I-29 & North 25th Street
Interchange Reconstruction

Work included removal of (46) light poles and (50) foundations, installation of (19) roadway lighting poles with drilled shaft foundations in sandy soils with high groundwater, (23) temporary lighting units, (2) control cabinets, (29) handholes, and over (13,000 LF) of electrical circuits.
The ITS scope included installation of fiber and communication infrastructure using HDPE conduit via trenching and boring methods, along with cabinets, power connections, and work within levee-critical zones requiring strict compaction and installation standards.
Traffic signing included removal and replacement of overhead structures, installation of (1) dynamic message sign (DMS), multiple sign trusses up to 90’ spans, and over (3,400 SF) of Type B guide signage. Work also included new concrete foundations, structural supports, and extensive nighttime operations for staged sign installation.