Major components of bridge ratings

Deck

Superstructure

Top surface

carrying traffic

Supporting part of a bridge, such

as steel members under the deck

Substructure

Piers and abutments supporting

the superstructure

SOURCE: Inquirer analysis of federal data

DOMINIQUE DeMOE / Staff Artist

Major components of bridge ratings

Deck

Superstructure

Top surface

carrying traffic

Supporting part of a bridge, such

as steel members under the deck

Substructure

Piers and abutments supporting

the superstructure

SOURCE: Inquirer analysis of federal data

DOMINIQUE DeMOE / Staff Artist

Major components of bridge ratings

Deck

Superstructure

Top surface

carrying traffic

Supporting part of a bridge, such

as steel members under the deck

Substructure

Piers and abutments supporting the superstructure

SOURCE: Inquirer analysis of federal data

DOMINIQUE DeMOE / Staff Artist