New York Codes, Rules and Regulations › Title 17 - DEPARTMENT OF TRANSPORTATION › Chapter IV - Highways › Subchapter C - Highway Use And Maintenance › Part 165 - Uniform Code Of Bridge Inspection › Section 165.11 - Structural integrity evaluation

Current through Register Vol. 46, No. 28, July 10, 2024
A structural integrity evaluation is a detailed structural
					 and foundation evaluation and analysis. Used in conjunction with an inspection,
					 it details a bridge's structural condition and integrity as well as present and
					 future needs to preserve or upgrade the safety and serviceability of the
					 bridge. The scope of a structural integrity evaluation shall include, where
					 applicable to the determination of integrity and safety, the following:
(a) A review, where available and reasonably
				  retrievable and consistent with engineering practice to perform such an
				  evaluation, of the design, design as- built plans, contract documents, and
				  history of construction, structural alterations, rehabilitation, and
				  maintenance repairs.
(b) A review
				  of design code changes since the time of original design with emphasis on the
				  impact the original design assumptions have on the bridge's structural
				  integrity and safety in comparison with current standards and
				  practices.
(c) A level 1 load
				  rating as defined by section
				  165.8  of
				  this Part.
(d) For bridges over
				  water, an evaluation of the effect of relevant or anticipated stream changes,
				  as well as an evaluation of the effects of hydraulic flows, including design
				  flood conditions. The Federal Technical Advisory (Code T 5140.20) titled Scour
				  at Bridges published by the Federal Highway Administration may serve as a guide
				  for evaluating bridges for scour vulnerability.
(e) An evaluation of the effects of
				  deterioration and modification to the original structure on structural
				  integrity, in conjunction with a general inspection conforming to the
				  requirements of this Code.
(f) A
				  life cycle projection of the scope and estimated cost of maintenance, repair,
				  and/or rehabilitation needed to preserve or upgrade the structural integrity
				  and safety of the bridge, in order to provide criteria for comprehensive bridge
				  management and safety.
Structural integrity evaluations shall be documented in a
					 detailed report format and shall be signed by a qualified structural integrity
					 evaluation engineer as defined by Section
					 165.5(b)(4) 
					 of this Part. Two copies of the structural integrity evaluation report shall be
					 filed with the New York State Department of Transportation regional office in
					 which the bridge is located. One copy of the report shall be made available to
					 the bridge inspector as a reference for all subsequent general bridge
					 inspections. Whenever a structural integrity and safety rating indicates a high
					 vulnerability to structural failure a structural integrity evaluation shall be
					 performed. Specific criteria for requiring a structural integrity evaluation to
					 be performed based on the New York State Department of Transportation
					 structural integrity and safety rating system are described in the New York
					 State Department of Transportation Structural Integrity and Safety Rating
					 Guide. In cases where a bridge meets the criteria for requiring a structural
					 integrity evaluation, but already has such an evaluation on file, a repeat
					 evaluation is not required unless it is determined that the evaluation on file
					 is no longer appropriate for the bridge in question. A recommendation of
					 appropriateness shall be made and documented by the bridge inspection team
					 leader based on a review of the report as part of performing a general bridge
					 inspection. In cases where only portions of the report are no longer
					 appropriate, amendments to the original structural integrity evaluation report
					 may be produced.