Can Truemont Materials’ Redi-Rock Precast Concrete Blocks be Used with Box Culvert Bridging?


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Box culverts offer a streamlined solution that addresses both transportation needs and environmental concerns.

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Box culvert bridges have become more prevalent in Florida and South Georgia due to their cost-effectiveness, ease and speed of installation, and adaptability to various environmental conditions.

Transportation engineers are using Redi–Rock, a precast concrete large block retaining wall system, for headwalls and wing walls for box culvert bridges and abutment and wing walls for other bridge types.

There are many advantages to using Redi-Rock with box culverts, including structural strength, design flexibility, installation speed, and the capacity to handle marine scenarios.

Precast concrete box culverts are becoming an increasingly prevalent bridging solution in Florida and South Georgia. This surge in popularity can be attributed to several factors, including their cost-effectiveness, ease and speed of installation, and adaptability to various environmental conditions.

How is Redi-Rock used in box culvert bridge construction?

Redi-Rock is a precast concrete large block retaining wall system popular among transportation engineers for bridge construction. The system can be used as headwalls and wing walls for box culvert bridges and abutment and wing walls for other bridge types.

image of redi-rock ledgestone wall being installed next to box culvert

Why do Florida and South Georgia engineers choose Redi-Rock over cast-in-place (CIP) and dry cast segmental retaining walls (SRW) for box culvert bridge projects?

Engineers in the Big Bend and Central Florida regions, as well as South Georgia, consider Redi-Rock a preferred solution for box culvert bridge headwalls and wing walls for many reasons, including:

  • Structural Strength. Redi-Rock is manufactured in Truemont’s climate-controlled factory with air-entrained first-purpose concrete and is on the FDOT Approved Products List (APL). All products meet ASTM C1776 for precast modular blocks (PMB).
  • Design Flexibility. Truemont offers a complete line of Redi-Rock block types (gravity, mechanically stabilized earth, hybrid) and sizes to overcome the most challenging bridge scenarios while maintaining design simplicity.
  • Technical Support. Redi-Rock is not just a market-leading product. It is backed by the industry’s most robust library of technical resources and a team of engineers ready to help support the project.
  • Lifetime Value. Redi-Rock isn’t the cheapest solution upfront, but its speed and simplicity of installation more than makes up for the initial cost differential from alternatives. Its wet cast concrete resiliency will also contribute to a substantially longer lifespan for the bridge.
  • Marine-Grade. Redi-Rock’s resilient wet cast composition means it stands up to water better than dry cast SRW alternatives. And unlike CIP, Redi-Rock can even be installed directly in some water scenarios.
  • Site Space. Truemont produces Redi-Rock and delivers it when installation crews are ready, requiring minimal on-site storage.
  • Installation Speed. No extensive form work, weather worries, or lengthy curing times that must be considered when using cast in place. Redi-Rock is better than cast-in-place because it’s ready to do its job the moment it’s installed.
  • Appearance. Truemont offers Redi-Rock in a selection of deep, rich textures and color options, ensuring the project will be as handsome as it is hardy. Cast in place can be stamped or imprinted, but can’t come close to the depth and detail of Redi-Rock blocks.

Redi-Rock can also easily host top-of-wall barriers, including fencing and parapets. Redi-Rock’s multi-phase performance testing ensures that the load requirements of the American Association of State Highway and Transportation Officials (AASHTO) and International Building Code (IBC) can be satisfied.

image of finished redi-rock wall for box bridge culvert with blue sky and water under bridge

Explore Redi-Rock for box culvert bridge projects

As the use of box culverts as bridging solutions continues to increase, having access to an available and reliable headwall and wing wall retaining block solution will help timely transportation projects stay within budget and on schedule. For Florida and South Georgia transportation officials seeking a durable, simple-to-install, and great-looking block for headwalls and wing walls, Redi-Rock by Truemont Materials is an intelligent choice. See how Redi-Rock can help with your next box culvert bridging project.

Nocatee, Florida, box culvert bridge with Redi-Rock headwall

heck out how several Redi-Rock block types were used to finish a box culvert bridge on Black Coral Ridge Drive in St. Johns County.

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