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Bridges are considered FUNCTIONALLY OBSOLETE when the geometry of the road no longer meets today’s least design standards for width or vertical learance for that roadway classifications, or the sufficiency of the waterway opening provided is determined to be insufficient. The fact that a bridge is functionally obsolete does not imply that it is insecure. The SUFFICIENCY RATING of a bridge is a single number from 0 (low) to 100 (high) taking into account, bridge condition, geometry, traffic, and how well the waterway passes beneath the bridge. Sufficiency rating is used to determine funding eligibility. A low sufficiency rating does not essentially mean the bridge is unsafe or in need or immediate repair.
A FRACTURE CRITICAL MEMBER is a steel member in tension that does not have sufficient additional, structural members to sufficiently redistribute load in the bridge if one member loses capability, thus resulting in a portion of or entire
bridge collapse.
FATIGUE is a material reaction that describes the tendency of a material to break when subjected to frequent loading.
BRIDGE INSPECTION
Bridges are considered STRUCTURALLY
DEFICIENT if considerable load-carrying elements are found to be in poor or inferior
condition due to deterioration and/or damage, or the competence of the waterway
opening provided is determined to be extremely inadequate. The fact that a
bridge is structurally deficient does not immediate implies that it is probable
to collapse or that it is unsafe.
Bridges are considered FUNCTIONALLY OBSOLETE when the geometry of the road no longer meets today’s least design standards for width or vertical learance for that roadway classifications, or the sufficiency of the waterway opening provided is determined to be insufficient. The fact that a bridge is functionally obsolete does not imply that it is insecure. The SUFFICIENCY RATING of a bridge is a single number from 0 (low) to 100 (high) taking into account, bridge condition, geometry, traffic, and how well the waterway passes beneath the bridge. Sufficiency rating is used to determine funding eligibility. A low sufficiency rating does not essentially mean the bridge is unsafe or in need or immediate repair.
A FRACTURE CRITICAL MEMBER is a steel member in tension that does not have sufficient additional, structural members to sufficiently redistribute load in the bridge if one member loses capability, thus resulting in a portion of or entire
bridge collapse.
FATIGUE is a material reaction that describes the tendency of a material to break when subjected to frequent loading.
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