Bridge replacement in Brattleboro wins international prize

-A A +A

Bridge replacement in Brattleboro wins international prize

Tue, 10/22/2019 - 9:43am -- tim
Brattleboro I-91 bridge over West River replacement seen from Route 30. VTrans photo April 2016

Vermont Business Magazine The American Concrete Institute (ACI) announced the winners of the 2019 Excellence in Concrete Construction Awards, who were honored at a Gala event during the Institute's Concrete Convention & Exposition, October 21, 2019, in Cincinnati, OH, USA. The highest honor was presented to King Abdulaziz Center for World Culture, located in Dhahran, Eastern Province, Saudi Arabia. The bridge replacement on I-91 in Brattleboro was the top winner in the infrastructure category.

Also known as Ithra, the Arabic word for "enrichment," the King Abdulaziz Center for World Culture is an 85,000 m2 (914,930 ft2) building surrounded by a 220,000 m2 (2,368,000 ft2) Knowledge Park that creates a space to inspire the imagination. Features of the structure include post-tensioned slabs spanning 15.9 m (52 ft), sloped concrete walls and ramps, and twisted and inclined reinforced concrete columns with decorative concrete finish.

The building is 90 m (295 ft) tall and is supported on a 3 m (10 ft) thick raft foundation. Stability is provided through a reinforced concrete core acting as a propped cantilever. The columns supporting the elevated slabs are inclined and result in horizontal thrust forces at the head and base of each column lift. The post-tensioned slabs act as structural diaphragms to carry these forces back to the core. Construction was completed in the fall of 2017.

The ACI Excellence in Concrete Construction Awards were created to honor the visions of the most creative projects in the concrete industry, while providing a platform to recognize concrete innovation, technology, and excellence across the globe. To be eligible for participation in the Excellence Awards, projects needed to be winners at a local ACI Chapter level and submitted by that Chapter or chosen by one of ACI's International Partners.

An independent panel of esteemed industry professionals judged projects and selected winners based on architectural and engineering merit, creativity, innovative construction techniques or solutions, innovative use of materials, ingenuity, sustainability, resilience, and functionality.

2019 ACI Excellence Awards - Overall Winner: King Abdulaziz Center for World Culture

Additional winning projects were selected from among several possible categories, and included:

  • Decorative Concrete

    • 1st Place: Qatar National Library, Doha, Qatar.

    • 2nd Place: Metro State University of Denver–Aerospace & Engineering Building: Denver, Colorado, United States.

  • High-Rise Buildings

    • 1st Place: Generali Tower, Milano, Italy.

    • 2nd Place: Statue of Unity, Gujarat, India

  • Infrastructure

    • 1st Place: I-91 Brattleboro Bridge–Concrete Bridges to Nature: Brattleboro, Vermont, United States.

    • I-91 Brattleboro Bridge – Concrete Bridges to Nature – Vermont, United States. Designed for an enhanced service life of 150 years, Vermont’s first concrete segmental bridge used 18,882 yd3 (14,436 m3) of concrete. The 4000 psi (28 MPa) footings were constructed with 700 yd3 (535 m3) mass concrete placements completed without the use of cooling tubes. A main aesthetic feature, the bridge’s signature quad wall piers were cast-in-place using 6000 psi (41 MPa) self-consolidating concrete. The quad wall piers provided stability and allowed for the balanced cantilever segmental construction of the bridge superstructure to be constructed from above using 8000 psi (55 MPa) high-performance concrete.

      Project Team Members: Owner: Vermont Agency of Transportation (VTrans); Engineering Firm: Figg Bridge Engineers, Inc.; General Contractor: PCL Civil Constructors; Concrete Supplier: Carroll Concrete.

      Nominator: New England Chapter – ACI>>

    • 2nd Place: Goethals Bridge Replacement Project: Elizabeth, New Jersey, United States.

  • Low-Rise Buildings

    • 1st Place: Hamad Port Project–Design and Build of Visitors Centre, Doha Port, Doha, Qatar.

    • 2nd Place: Anastasis Church, Ille-et-Vilaine, France.

  • Mid-Rise Buildings

    • 1st Place: King Abdulaziz Center for World Culture (ITHRA), Eastern Province, Saudi Arabia.

    • 2nd Place: MGM National Harbor, Oxon Hill, Maryland, United States.

  • Repair & Restoration

    • 1st Place: Palais d'Iéna (Restoration of the Façades), Paris, France.

    • 2nd Place: Lake Peachtree Spillway Replacement: Peachtree, Georgia, United States.

The winning project details can be found at Entries for the 2020 Excellence in Concrete Construction Awards are being accepted now through April 6, 2020.

Visit for more information.

lways advancing – Founded in 1904 with a headquarters in Farmington Hills, MI, USA, and a regional office in Dubai, UAE, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational & training programs, certification programs, and proven expertise for individuals and organizations involved in concrete design, construction, and materials, who share a commitment to pursuing the best use of concrete. For additional information, visit

SOURCE FARMINGTON HILLS, Mich., Oct. 22, 2019 /PRNewswire/ -- American Concrete Institute