Rehabilitation Work Begins on Historic Waco Suspension Bridge over Brazos River in Waco, Tx

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Specialty engineer Modjeski and Masters to complete cable and hanger design and associated erection engineering

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“As the structure is a Texas historic landmark, it was important to select an engineering firm with experience of performing similar specialty engineering services on previous projects,” said Justin Campbell, Senior Project Manager at Structural Technologies.

Modjeski and Masters, a nationwide leader in the design, inspection, and rehabilitation of all bridge types, today announced a key milestone for the rehabilitation work on the historic Waco Suspension Bridge with the City of Waco Parks Department.

The project’s Engineer of Record is Sparks Engineering, Inc., with Gibson & Associates of Dallas as the general contractor. Structural Technologies is a subcontractor for the performance of the cable-related activities.

As specialty engineer on the project, working under Structural Technologies, Modjeski and Masters is providing final design for the cable and hanger system, as well as the associated erection engineering. The team is working with the specialty contractor and their selected fabricator to develop the safest and most cost-effective details—including the methods for removal of existing cable and hangers, and the installation and tensioning of the new cables and hangers.

The Modjeski team began design work on the project in Summer of 2020, with the removal of the existing elements slated to begin in early February of 2021. The new material will be fabricated in early 2021, and the installation of the new cable and hangers is slated to begin around October 2021. The project in its entirety has an estimated value of $12.4 million.

“As the structure is a Texas historic landmark, it was important to select an engineering firm with experience of performing similar specialty engineering services on previous projects,” said Justin Campbell, Senior Project Manager at Structural Technologies. “The Modjeski team has a resume demonstrating their expertise in such works as well as provided Structural Technologies confidence that the project challenges could be resolved safely and efficiently.”

Originally designed and built by John A. Roebling and Sons—which later built the Brooklyn Bridge—the Waco Suspension Bridge is an ASCE Civil Engineering Landmark and is recorded in the National Registry of Historic Places. The existing bridge was built in 1914, with the towers dating back to the original structure from 1859. It was the first bridge over the Brazos River and at the time of its official opening in 1870, the Waco Suspension Bridge was among the longest single-span suspension bridges in the world. After carrying traffic for a century, it is now a well-known walking bridge for the community.

The rehabilitation project will impact portions of the Waco Riverwalk on both sides of the Brazos River, as well as traffic lanes along University Parks Drive and Martin Luther King, Jr. Boulevard.

For more information about Modjeski and Masters, visit http://www.modjeski.com.

About Modjeski and Masters
Modjeski and Masters is one of the world’s leading bridge engineering firms, with a reputation for technical excellence and innovation that goes beyond current standards. Established more than 125 years ago, the firm is responsible for the design and maintenance of some of our nation’s most recognizable structures. Services include fixed and movable bridge design, inspection and rehabilitation, all facets of life-cycle maintenance, research, and code development. For more information, including in-depth videos of Modjeski and Masters at work, please visit http://www.modjeski.com.

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