Author archive for Quigg Engineering Inc.

  • Move Illinois LRTP Long Range Transportation Plan

    2023 State Long Range Transportation Plan, IDOT

    QEI collected and organized data on the statewide transportation system, including infrastructure, equipment, resources, and existing plans and programs. Data…

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  • University of Chicago, Botany Pond Restoration

    University of Chicago, Botany Pond Restoration, Phase II/III

    QEI completed a topographic survey of Botany Pond, located adjacent to the Zoology Building and Erman Biology Center on the…

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  • Skyline Drive & Crenshaw Road Intersection Roundabout

    Skyline Drive & Crenshaw Road Intersection Roundabout

    QEI completed an Intersection Design Study (IDS) for reconstructing the three-leg intersection of Skyline Drive and Crenshaw Road using a…

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  • Diverging Diamond

    I-55/Weber Road Diverging Diamond Interchange, IDOT District 1

    QEI provided an Assistant Resident Engineer on this $68M improvement project that consisted of the reconfiguration of the interchange at…

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  • MLB

    I-294 (Tri-State Tollway) Mile Long Bridge Reconstruction, Illinois Tollway

    QEI was a Joint Venture Partner that planned and designed a $360M replacement of the 4,940-foot long, 54-span, dual Tollway…

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  • US 20 Reconstruction

    US 20 Reconstruction, IDOT District 2

    QEI was involved with inspecting and documenting all the construction work occurring during the first season. That work included the…

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  • West State Street

    US Bus 20 West State Street, IDOT District 2

    QEI provided on-site inspection including design changes; construction layout, when not provided for in the contract plans; geotechnical inspection and…

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  • IL-Tollway-I-88 Windsor Drive Bridge Replacement

    I-88 Windsor Drive Bridge Replacement

    QEI compiled PS&E for Landscaping and Fencing Plans, Erosion and Sediment Control, Pavement Marking, Temporary Traffic Signals, and Temporary Cable…

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  • Henry Bridge Inspection

    Henry Bridge Inspection, BBS, IDOT District 4

    QEI organized, led, and conducted a routine bridge, fracture critical, element level, and underwater non-diving inspection of the Major River…

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  • Cermak Corridor-PACE Pulse Line

    Cermak Corridor-PACE Pulse line, HNTB Corporation

    QEI provided data collection for the corridor area along with supplemental traffic data to determine bus stop locations and traffic…

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