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  1. More than one-third, or 220,000, of the nation’s 618,000 bridges need structural repair, rehabilitation work or replacement, according to the American Road & Transportation Builders Association’s (ARTBA) seventh annual analysis of the latest U.S. DOT’s National Bridge Inventory (NBI) database.

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    • Sustainable Design Showcased in Hardenberg
    • Pre-Construction Study and Preparation
    • Building and Positioning The FRP Deck
    • Two-Part Bonded Joint
    • Increased Sustainability, Future Potential

    Built in the 1960s, the bridge over the Radewijkerbeek in Hardenberg is mainly used by local residents and increasing traffic, including heavy agricultural vehicles, for which it was not designed. Due to the poor quality of its concrete structure, damaged by deicing salts, the only options for the bridge were demolition and new construction or SURE...

    A preliminary investigation and engineering design phase is required for any repair or replacement technique, says Veltkamp. “This can take several weeks and is conducted by the municipality or roads authority.” It includes researching the bridge’s original design, inspecting the structures and foundation of the bridge and conducting chloride penet...

    As explained in CW’s 2017 tour of FiberCore Europe, its FRP bridge deck designs are driven by strength, not stiffness properties. The resulting decks can match the strength of steel at one-fifth the weight, are 20-50% less expensive and are also much easier to transport and install. Multiaxial glass fiber fabrics for the bottom skin are placed into...

    Once the FRP deck is installed and positioned with the bolts, concrete mortar can be pumped into the space between the new and old decks. Here, too, there are factors to consider, says Veltkamp. “The bridge is long and wide, so you don’t inject concrete at one end, wait an hour and then it is at the other end because the mortar is really thick. Rat...

    “First and probably foremost, is that by using SUREbridge you avoid demolishing the bridge and actually reuse it,” says Veltkamp. “This extended use represents an estimated 50% reduction in CO2 emissions compared to building a new bridge. And that means more than just avoiding waste, because it greatly reduces how long the bridge is out of use.” Re...

  2. 1 out of 3 U.S. bridges still needs to be replaced or repaired, even as the nation’s share of bridges in poor condition continues to slowly improve.

  3. More than one third (37 percent) of U.S. bridges—nearly 231,000 spans—need repair work. More than 46,000 bridges are rated in poor condition and classified as “structurally deficient.” A total of 81,000 bridges should be replaced.

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  4. Aug 29, 2023 · The total number of bridges that need major repair work or should be replaced is more than 222,000, which is approximately 36% of all bridges in the US. ARTBA chief economist, Alison Premo Black, who conducted the analysis, estimates it would cost more than US$319 billion to make all needed repairs.

  5. Sep 10, 2024 · In total, 36% or 221,800 bridges need repair and 76,175 should be replaced entirely, per ARTBA’s report, which provides a snapshot in time of the nation’s bridge conditions. Plus, 49% of...

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  7. May 23, 2019 · Structurally deficient bridges must be inspected by accredited experts or engineers, who can then determine the properly required repair methods. Here are some of the more common techniques for bridge repairs.