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Title 23: Highways
CHAPTER I: FEDERAL HIGHWAY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION
SUBCHAPTER G: ENGINEERING AND TRAFFIC OPERATIONS
PART 650: BRIDGES, STRUCTURES, AND HYDRAULICS
Subpart D: Highway Bridge Replacement and Rehabilitation Program
650.403 - Definition of terms.
As used in this regulation:
(a) Bridge. A structure, including supports, erected over a depression or an obstruction, such as water, a highway, or a railway, having a track or passageway for carrying traffic or other moving loads, and having an opening measured along the center of the roadway of more than 20 feet between undercopings of abutments or spring lines of arches, or extreme ends of the openings for multiple boxes; it may include multiple pipes where the clear distance between openings is less than half of the smaller contiguous opening.
(b) Sufficiency rating. The numerical rating of a bridge based on its structural adequacy and safety, essentiality for public use, and its serviceability and functional obsolescence.
(c) Rehabilitation. The major work required to restore the structural integrity of a bridge as well as work necessary to correct major safety defects.
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