• Klingner & Associates P.C.

    Klingner & Associates P.C.



    About Us

    Klingner & Associates, PC offers a wide-range of professional services including civil engineering, mechanical/electrical engineering, environmental engineering and structural engineering, as well as architecture, interior design, planning, and land surveying and geotechnical/construction material testing services. Our firm has had the privilege in assisting individuals, industrial and commercial businesses, municipalities, primary/secondary and higher educational, and government agencies throughout Illinois, Missouri and Iowa.

    Projects designed by the firm have received awards from the American Society of Civil Engineers, Consulting Engineers Council of Illinois, American Consulting Engineers Council, Structural Engineer's Association of Illinois, Illinois Capital Development Board, Iowa Main Street, Steel Plate Fabricators Association, Iowa Ready Mixed Concrete Association and State, Regional and National Environmental Protection Agencies.

    Klingner & Associates P.C. has eight regional offices throughout Illinois, Iowa, and Missouri to serve our clients:

    Quincy - Galesburg - Carbondale | Burlington - Pella - Davenport | Columbia - Hannibal


    Transportation - Shinn Lane Roundabout
    Water Resources - Ottawa Township Highschool Floodwall
    Site Development & Parking
    Structural - Mauvaise Terre Creek Bridges
    Water Resources - Beartstown Pump Station
    Structural - ACHD Cannonball Bridge
    Water & Sewer - Ralls County Water Treatment Plant
    Water & Sewer - Ralls County Water Treatment Plant
    Site Design - Salvation Army Building
    Transportation - Roadways & Trails
    Transportation - Klinger Multi-Use Trail in Qunicy
    Site Development - Industrial Facilities
    Environmental Engineering - Wetland Delineations
    Environmental - NEPA Study and Reviews
    MEP - Bridge Lighting
    Structural Engineering - Building Frames & Foundations
    Architecture & Interior Design - Salvation Army Building
    Site Development & Architecture - Lincoln Douglass School
    Architecture & MEP- Lincoln Douglass School
    Architecture - Community College
    Architecture & MEP - Community College Interior
    Interior Design
    Materials Testing - Concrete Cylinders
    All-terrain Geotechnical Rig
    Klingner Drill Rigs

    Rep/Contact Info

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    Sean C. Henry, P.E.
    Regional Branch Manager