[Code of Federal Regulations]
[Title 23, Volume 1]
[Revised as of April 1, 2004]
From the U.S. Government Printing Office via GPO Access
[CITE: 23CFR650.305]

[Page 233-234]
 
                           TITLE 23--HIGHWAYS
 
 CHAPTER I--FEDERAL HIGHWAY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION
 
PART 650_BRIDGES, STRUCTURES, AND HYDRAULICS--Table of Contents
 
             Subpart C_National Bridge Inspection Standards
 
Sec. 650.305  Frequency of inspections.

    (a) Each bridge is to be inspected at regular intervals not to 
exceed 2 years in accordance with section 2.3 of the AASHTO Manual.
    (b) Certain types or groups of bridges will require inspection at 
less than 2-year intervals. The depth and frequency to which bridges are 
to be inspected will depend on such factors as age, traffic 
characteristics, state of maintenance, and known deficiencies. The 
evaluation of these factors will be the responsibility of the individual 
in charge of the inspection program.
    (c) The maximum inspection interval may be increased for certain 
types or groups of bridges where past inspection reports and favorable 
experience and

[[Page 234]]

analysis justify the increased interval of inspection. If a State 
proposes to inspect some bridges at greater than the specified two-year 
interval, the State shall submit a detailed proposal and supporting data 
to the Federal Highway Administrator for approval. The maximum time 
period between inspections shall not exceed four years.

[36 FR 7851, Apr. 27, 1971. Redesignated at 39 FR 10430, Mar. 20, 1974, 
as amended at 39 FR 29590, Aug. 16, 1974; 53 FR 32616, Aug. 26, 1988; 57 
FR 53281, Nov. 9, 1992]