IIW

Project Category

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

Lower Bee Branch Creek Restoration

Located in the north-central portion of Dubuque, the Bee Branch drainage basin has a long history of extreme flooding. The Bee Branch Restoration Project aims to change that. In the initial phase, IIW... > READ MORE

IA 32 (Northwest Arterial) Capacity Improvements

The IA 32 capacity improvement project went beyond the expansion of the roadway to include the integration of new traffic technology, including a fiber optic system, pan-tilt-zoom cameras, stop bar cameras,... > READ MORE