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Glossary

Abutment

A retaining wall supporting the ends of a bridge or viaduct.

Bent

Part of a bridge substructure. A rigid frame commonly made of reinforced concrete or steel that supports a vertical load and is placed transverse to the length of a structure. Bents are commonly used to support beams and girders. An end bent is the supporting frame forming part of an abutment.

Each vertical member of a bent may be called a column, pier or pile. The horizontal member resting on top of the columns is a bent cap. The columns stand on top of some type of foundation or footer that is usually hidden below grade.

A bent commonly has at least two or more vertical supports. Another term used to describe a bent is capped pile pier. A support having a single column with bent cap is sometimes called a “hammerhead” pier.

Cell Crete

Cell Crete (Cellular concrete) is a carefully crafted mixture of cement, water and preformed foam. This material is mixed to a specified density and pumped into any void.

CIDH

CIDH or bored pile is another type of reinforced concrete pile, which is used to support a high building producing heavy vertical loads. Bored pile is a cast-in-place concrete pile where the bored piles have to be cast on the construction site.

ESA

Environmentally Sensitive Area

Falsework

Temporary construction work on which a main work is wholly or partly built and supported until the main work is strong enough to support itself

GGS

Giant Garter Snake

Grub

To clear an area of roots and stumps by digging.

Lost Deck

A Lost Deck is a temporary wood framing system that is put in place prior to the rebar and “real” bridge deck being cast. It is built and set at a certain elevation to give the concrete from the “real” deck its proper thickness. Once the concrete from the real deck is poured, there’s no way to retrieve the lost deck, hence its name.

MSE

Mechanically Stabilized Earth walls: soil constructed with artificial reinforcing. MSE walls stabilize unstable slopes and retain the soil on steep slopes and under crest loads.