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Life-Cycle Engineering Services | EXPANDED

Modjeski and Masters is pleased to announce the acquisition of structural engineering firm Summit Engineering Group, Inc. Our combined engineering prowess and respective technical skillsets will enable us to provide streamlined design and construction solutions to best meet client needs.

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Oklahoma Statewide Vessel Collision Risk Assessment

| View Projects: Statewide, OK

  • Client:

    Oklahoma Department of Transportation
  • Service:

    Highways & Other
  • Status:

    Completed
  • Overview

    On May 26, 2002, the I-40 Webbers Falls Bridge over the Arkansas River was struck by a tugboat towing a series of barges. The impact rocked the bridge, sending a 580-ft section of the interstate, along with multiple cars and trucks, into the river below. 14 people perished in the tragic event. Both the Public and Oklahoma Department of Transportation (ODOT) officials demanded to know how this could happen. And could it happen again to other bridges in the area? To begin answering these tough questions, ODOT sought the input of an experienced bridge engineering firm. They also needed a partner that they could trust. They found both in Modjeski and Masters.
     
    For the emergency collapse investigation, Modjeski and Masters first determined barge collision loads, and created finite element models for in-depth analysis. In addition, our innovative engineers evaluated materials samples and testing data from the affected span to determine probable collapse mechanisms. We then provided ODOT with documentation detailing the initial cause and the sequence of events leading up to the bridge collapse.  To answer the question of whether this could happen to other bridges, Modjeski and Masters completed a statewide vessel collision vulnerability study. This study included structural and risk analyses for 12 bridge crossings, including vessel and waterway data collection, and vessel collision load calculations. As a result, our knowledgeable staff provided ODOT with recommendations for bridge protection systems and accident prevention measures.
     
    ODOT has remained proactive in preventing a repeat of the Webbers Falls incident. And so has Modjeski and Masters. As active partners, we have designed pier protection systems for four of the 12 study area bridges. Our clients count on us for our experience. And they trust us with their most difficult challenges.  It’s what we believe are the key ingredients for long-term client relationships.
  • Description

    Tasks Performed
    • Forensic Investigation
    • Structural Analysis
    • Vessel Collision Studies
    • Vulnerability Assessment
    • Pier Protection Design

    Bridge Geometry - US-64 Bridge, Sequoyah and Sebastian Counties
    • Length of Main Span - 340 feet
    • Total Project Length - 3,087 feet

    Bridge Geometry - I-40 Bridge, Muskogee & Sequoyah Counties

    • Length of Main Span - 330 feet
    • Total Project Length - 2,003 feet

    Bridge Geometry - SH-100 Bridge, Muskogee and Sequoyah Counties
    • Length of Main Span - 334 feet
    • Total Project Length - 1,928 feet

    Bridge Geometry - SH-51 Bridges, Wagoner County

    • Length of Main Span - 211 feet
    • Total Project Length - 788 feet

    Bridge Geometry - US-59 Bridge, LeFlore and Sequoyah Counties
    • Length of Main Span - 350 feet
    • Total Project Length - 1,877 feet

    Bridge Geometry - US-62 Bridges, Muskogee County
    • Length of Main Span - 334 feet
    • Total Project Length - 1,496 feet
  • Testimonial

    Our knowledgeable staff provided ODOT with recommendations for bridge protection systems and accident prevention measures.
  • Credits

    Dr. Zolan Prucz, PE (Principal In Charge)
    Lauren K. D’Armond, PE (Lead Engineer)
    Michael J. Borzok, PE (Project Engineer)
    Dr. John M. Kulicki, PE (Technical Advisor)
    Don F. Sorgenfrei (Technical Advisor)
    Yu Ouyang, PE (Project Engineer)