IIW

Project Category

Construction Services

Bridges & CulvertsBuildingsConstruction ObservationConstruction Observation & AdministrationDOT Project ManagementIndustrialMaterial TestingParking Structures
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

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

Lansing Wastewater Pumping & Treatment Facility

Using the technical expertise of IIW's engineering team, the City of Lansing upgraded its wastewater treatment system with a newly constructed extended aeration treatment plant (AeroMod) that’s also... > READ MORE

11th Street East Rehabilitation

When the crippling pavement of a thoroughfare in Dewitt, Iowa required fast action, IIW responded with completing the design and receiving the necessary approvals within three months.... > READ MORE

W62 (Sharon Center Road) Over Old Man’s Creek

IIW’s partnerships with counties come in all forms. In the case of Johnson County, Iowa, county staff performed as much of the work for a new bridge before engaging the IIW DOT Project Management team... > READ MORE