To assemble the superstructure, box girders cast near the bridge site are lifted and brought into place using a
self-propelled gantry crane, and then the tendons are
post-tensioned before the crane moves to the next segment and repeats. The structure is slated to be the longest cable-stayed, concrete segmental bridge in North America. Corpus Christi's nearby
John F. Kennedy Memorial Causeway, which has a similar construction method, is the first precast concrete post-tensioned segmental box girder bridge in the United States.
Construction suspension In March 2018, a
pedestrian bridge collapse in Florida prompted extensive reevaluation of bridge construction across the United States. An
NTSB investigation ultimately concluded that the chief probable cause for the Florida bridge collapse was an error in design by the FIGG Bridge Group. FIGG was also the engineer for the Harbor Bridge Project. This prompted a design review by TxDOT who in 2019 ultimately asked the bridge developer Flatiron/Dragados to remove FIGG and select a different engineering firm. In July 2020 the developer designated the new engineer for the project as
Arup-, who expected no major changes. Construction resumed in August 2021. The developer Flatiron/Dragados disputes some of these findings, and as of September 2022 discussion were ongoing with TxDOT regarding future construction and potential design remedies.
Work continues TxDOT and Arup-CFC resolved one of the five design issues, deciding to add additional steel reinforcement to the delta box girders, and work resumed on those sections as of November 3, 2022. Construction of the approach spans has continued despite the halt on the main span and towers, and were over 80% complete as of October 28, 2022. TxDOT and Flatiron/Dragados resolved the four remaining design issues in April 2023. In January 2025, the main span connection of the new Corpus Christi Harbor Bridge was completed when the last southbound segment was installed. ==See also==