Precast concrete box culverts
are one of the most versatile and cost
effective pre-cast concrete products on the
market today, meeting and exceeding the needs of a multitude of
fast‑paced construction projects. Flexibility in design and ease of
placement lead to cost savings across the board.
The uses for pre-cast
concrete box culverts are endless. They can be used for underpasses, service
tunnels, subways, outfalls, bridges, stream culverts, material handling,
utility storage, chimneys, vertical storage, watertight holding tanks
concrete manufacturers offer a variety of standard box culverts as well
custom designs. Additional features can be added by the producer to meet
the exact needs of any project: toe walls, manhole openings, headwalls,
wing walls, pipe openings, V‑bottoms, keyed‑ends, sloped‑faced ends
and water tight joints. Optional exterior coatings can also be applied
at the plant reducing onsite construction. Pre-cast
concrete box culverts can be produced in any size limited only by
ASTM Specification C
1433, "Standard Specification for Manufacture of Pre-cast
Reinforced Concrete Box Culvert Sections for Culverts, Storm Drains and Sewers,"
specifies design and manufacturing requirements to promote quality and
concrete box culverts have several advantages over competing materials.
The strength of pre-cast
concrete gradually increases over time. Other materials can deteriorate,
experience greater creep and stress relaxation, lose strength and/or
deflect over time. The load‑carrying capacity of pre-cast
concrete is derived from its own structural qualities and does not rely
on the strength or quality of the surrounding backfill materials.
Properly designed pre-cast concrete box
culverts can easily support vehicular, aircraft and railway loads
meeting AASHTO, FAA and AREMA specifications.
concrete products are produced in a controlled environment, they exhibit
high quality and uniformity. Factors affecting quality typically found
on a job site ‑ temperature, improper curing, poor craftsmanship and
material quality ‑ are nearly eliminated in a plant environment. Pre-cast
concrete products produced in a quality‑controlled environment and
installed with high‑quality sealants offer a superior solution to water
tightness requirements. Standard watertight sealants are
specially formulated to adhere to pre-cast
concrete, making watertight multiple‑seam pre-cast
concrete box culverts possible.
ease of installation
concrete box culverts are manufactured well in advance of installation,
they are ready for transportation to the job site at a moment's notice.
They are quickly installed in a matter of hours using a crane and a
small crew. Backfilling can begin immediately rather than waiting
several days or more for cast‑in‑place concrete to gain proper strength.
Once backfilled, road construction can begin, greatly reducing the
deviation of any associated lanes and congestion in the surrounding
concrete increases efficiency because weather will not delay the
manufacturing process in the pre-cast plant.
In addition, weather conditions at the job site do not significantly
affect the schedule. Conversely, forming and placing of concrete for
cast-in‑place applications can be delayed
significantly due to poor weather conditions.
concrete box culverts can also include spandrel and wing wall panels
with a multitude of architectural finishes. Finishes commonly available
are: steel form, textured form liner, exposed aggregate,
acid etched, brick and sand blast. Each is distinctly different,
providing specifiers and owners a broad choice in appearance.
Architectural finishes compliment the surrounding environment as well as
comply with local aesthetic requirements.
concrete is nontoxic, environmentally safe and made from all‑natural
materials, making it an ideal material for use below grade or for the
conveyance of water. Concrete has no proven ill effects on groundwater
and surface water quality helping to preserve our natural water
By incorporating pre-cast
concrete box culverts into your next project you will be sure to finish
under budget. Fewer skilled laborers and overall man‑hours will be
required for the project, making pre-cast
concrete box culverts ideal for meeting the needs of today's fast‑paced
If you are spanning a
small creek, designing a combined sewer overflow system or housing
telecommunications equipment below grade, pre-cast
concrete box culverts are the clear choice. Their versatility in design
and modularity help make any project run smoothly, leading to overall