Authors: Mohammad S. Longi

Date of Publication:  1999 (?)

Sponsoring Agency:  Transportation Research Board, Committee on Railroad Track Structure System Design

Performing Organization:  The Long Island Rail Road Company

Report No:

Abstract:

The Long Island Rail Road (LIRR) bridge infrastructure comprises 396 railroad bridges. Most of the bridges were built in the early 1900s, and some were constructed as early as the 1890s. Because of their age and exposure to ever-increasing static and dynamic loading, many of these structures have reached or are nearing their useful service life. The LIRR’s $2.0 billion, 10-year (1982-1991) Capital Improvement Program provided an opportunity and challenge to priority rank some of these bridges and program them for rehabilitation or replacement. Three of the projects are reviewed, and the LIRR bridge data base, load rating program, and bridge management process are discussed.
 
 

No. of Pages:  11