American Concrete Industries

of Auburn and Bangor Maine, USA.

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Three Sided Bridge by ACI

Pre-cast concrete bridge sections lay quickly
and leave a natural stream bed.

For larger view click on pictures

Three Sided Bridge
For larger view click on pictures

American Concrete’s three sided bridge units provide the structural integrity of a box culvert plus allows for a natural stream bed. These units are installed with very little impact on the existing waterway and environment. One piece construction provides a cost effective solution to short span bridges such as stream and wetland crossings and tunnels. Design advantages include low rise to longer spans and varied fill depths. American will provide PE stamped calculations and drawings with each order.

The three sided bridge system decreases installation time and cost compared to a conventional cast in place bridge system. Many sizes are available and we can custom build shapes, sizes and openings to meet your specifications. Precast headwalls and wing walls of various shapes and sizes are also available.

The system consists of two precast concrete footings that are set on a crushed stone bed on each side of the stream. The footings are cast with a groove to receive the three sided box sections. The footings are cast in 10’-0” long sections and the bridge units are cast in 7’-6” long sections. American has many standard forms to build your custom three sided bridge system.

American Concrete Industries


1022 Minot Avenue
Auburn ME 04210 USA
(207) 784-1388 - Fax (207) 783-4039
For more information ask for
Bob Poirier or Matt Engelman

1717 Stillwater Ave.
Veazie, ME 04401 USA
(207) 947-8334 - Fax (207) 947-3580
For more information ask for
Shawn MacDonald or Opie MacDonald

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