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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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Washington, DC Citywide Bridge Inspection Program

| View Projects:USA Washington, DC

  • Client:

    District Department of Transportation
  • Service:

    Field Services
  • Status:

    In Progress
  • Overview

    The vision of the District Department of Transportation (DDOT) is an ambitious one: to design, operate and maintain the transportation system of our nation’s capital to world class standards. It is a monumental task, considering the system’s location. Washington, D.C is one of the nation’s most congested areas, second only to Los Angeles. Integral to that vision is a strategy to inspect, at the necessary frequencies, each of the more than 240 highway bridges.  The scope of that plan required a program that could successfully maintain every structure to those high standards. 
    But the sheer number of structures isn’t the only challenge. The bridge population of the Washington, D.C. area is diverse. It includes a multitude of structural designs and considerations: fixed and movable bridges, historic and iconic bridges, interstate and local bridges.   Such diversity required the expertise of a firm familiar with the entire range. It was a simple equation: world class bridges required the inspection services of a world class bridge engineering firm. DDOT selected Modjeski and Masters. 
    Our proven expertise with inspections of all types of bridges, combined with our ability to provide life cycle bridge engineering services, including instrumentation and a higher level of structural analysis, made DDOT’s decision a logical one. Our innovative inspection techniques, such as the use of a bucket boat, abated their concerns that we could work efficiently in such a highly congested area. In the end, DDOT recognized they had found the perfect partner to help them realize their vision. Modjeski and Masters and DDOT shared the common goal of working together to implement solutions for the long term.
    Our commitment to DDOT required frequent bridge inspections. To satisfy our client’s specifications that there would be no lapses, our plans called for significant bridge inspection staffing to complete the tasks.   The scope of our work also included comprehensive planning and coordination with traffic control, access equipment, railroads and other specialty subcontractors and stakeholders to ensure all schedules would be met. We developed standardized digital report formats to minimize report development time.
    Modjeski and Masters has become an active partner with DDOT. During the development of the contract, we have been asked to digitize their bridge plan sets, inspect and analyze parking garage decks, evaluate bridges for scour, develop temporary supports for deficient components, and develop repair drawings to correct deficiencies uncovered during inspections. 
  • Description

    Tasks Performed
    • In-Depth Inspection
    • NBIS Inspection
    • Construction Support
    • Rehabilitation – Final Design
    Bridge Geometry
    • Length of Main Spans – various
    • Total Project Length – various
    • Lanes on Structure – various
  • Testimonial

    Modjeski and Masters provided the expertise necessary to inspect a wide variety of structure types while minimizing traffic disruptions and coordinating with a diverse set of stakeholders to deliver the inspections and reports within the agreed upon schedule.
  • Credits

    Leon K. Huang, PE (Principal In Charge)
    Richard A. Little, PE (Project Manager)
    Bradley C. Croop, PE (Inspection Team Leader)
    Gary M. Kasten, PE (Inspection Team Leader)