Structural

Des Moines Grand Ave. Bridge

The new Grand Avenue PPC beam bridge spanning the Des Moines River supports three lanes of traffic with a westbound bicycle lane and sidewalks.

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CRST Center

The 12-story CRST Center is a welcome addition to the Cedar Rapids Skyline, providing breathtaking views of the river and surrounding landscape.

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I-35/East 1st Street Diverging Diamond Interchange

Roadway and ramp improvements are needed to create a DDI in Ankeny, which will improve traffic safety and efficiency.

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Kanesville Pedestrian Bridge

Originally constructed in the 1970s, significant rehabilitation and aesthetic improvements were needed to address and overcome ongoing bridge issues.

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Starkweather Bike Path

The Starkweather Bike and Pedestrian Path connecting the Isthmus and East Washington corridors with the Madison Campus was completed in June 2010.

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Kempton Bridge & NW 66th Avenue

The NW 66th Avenue and Kempton Bridge project involves the reconstruction of 2.5-miles of rural, four-lane roadway with a designated left turn lane.

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UNI Hudson Road Overpass

Structural and aesthetic improvements were completed to expand the capacity of this pedestrian bridge and provide a refreshed, clean appearance.

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High Trestle Trail

This 10-foot wide, 25-mile long trail connects five cities across four counties following a rail-banked railroad corridor.

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IA-5 & I-35 Interchange

An ACEC Iowa Engineering Excellence Award was given in honor of the IA-5 & I-35 Interchange project which enables safe, efficient traffic flow.

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Raccoon River Valley Trail

This project extended the popular Raccoon River Valley Trail in Dallas and Guthrie Counties to create a 72-mile long paved recreational trail loop.

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Iowa 4 Railroad Overpass

As the primary design consult, we provided numerous services including preliminary roadway design, right of way, railroad coordination, and more.

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