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Precast box
culverts are available in 3 to 12 feet spans and rises. Standard
box section length is 6 to 8 feet.
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Single and
multi-barrel precast box units are available.
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Precast
headwalls and wingwalls are available for box end treatment.
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Joints are
typically tongue and groove for packing mastic joint compound, butyl
gaskets or mortar to meet ASHTO M198.
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A large
assortment of fittings are available including manhole and lateral tees,
elbows, wyes, reducers, battered and skewed ends, adapters, caps/plugs,
etc..
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A variety
of linings and coatings are available if required by project conditions.
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Standard
ASTM C789 (AASHTO M259), C850 (AASHTO M273) and PS62 box culvert designs
as well as specialized designs and geometry.
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Special
designs available for deep fills, jacking special loads, etc..
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Typical Applications Include
- All fill ranges and
live load conditions
- Open trench, embankment
or trenchless installation
- As an alternative for
multi-barrel circular pipe
- Ideal for low cover
conditions with large flow
- Good replacement for
open channels and ditches
- Storm drains and
culverts
- Short span highway
bridges
- Pedestrian, live stock,
golf cart tunnels
- Underground stormwater
runoff retention
- Groundwater recharge
and sand filter systems
- Utility tunnels
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