IIW

Project Category

Transportation

Bridges & CulvertsRecreational Trails & FacilitiesRetaining StructuresRoadwaysStorm WaterStreetsTraffic Engineering
Water Street over Wapsipinicon River

IIW’s work on the Water Street bridge over the Wapsipinicon River in Quasqueton, Iowa, began with the evaluation of a series of rehabilitation options. IIW helped city and county officials understand... > READ MORE

Veterans Memorial Parkway

IIW partnered with the City of Davenport to develop a new crossing of Crow Creek and an urban roadway to meet the growing needs of the community and provide enhanced walkways.... > READ MORE

Peosta Street Roundabout

IIW developed a specialized design for an urban roundabout that could accommodate an exceptionally large load and 19-axle heavy haul trucks in the City of Peosta while providing a gateway to the nearby... > READ MORE

North Cascade Road over the South Fork Catfish Creek

IIW led the emergency replacement of the North Cascade bridge after it was washed out by a summer storm in Dubuque, Iowa. IIW’s engineering team conducted a hydrologic and hydraulic analysis to determine... > READ MORE

Millwork District Street Redevelopment

IIW designed a two-way street conversion in accordance with the city’s master plan to better facilitate truck traffic and avoid the confusion and out of the way travel needed to access some areas within... > READ MORE