What It Means
The substructure includes all structural elements below the bearings: abutments, piers, pile caps, and footings. These elements transfer loads from the superstructure to the ground. Inspectors evaluate for settlement, scour damage, cracking, and movement. Substructure problems can be particularly costly to repair because they often require work below water or underground.
Frequently Asked Questions
What does "Substructure Condition Rating" mean?
A 0-9 rating of the foundations and supports beneath the bridge, including piers and abutments.
Why does Substructure Condition Rating matter for bridge safety?
The substructure includes all structural elements below the bearings: abutments, piers, pile caps, and footings. These elements transfer loads from the superstructure to the ground. Inspectors evaluate for settlement, scour damage, cracking, and movement. Substructure problems can be particularly co...