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  • Structures Across or Adjacent to Railroads | UpCodes
    Although General Order No 26-D specifies a minimum vertical clearance of 22 feet 6 inches above tracks on which freight cars not exceeding a height of 15 feet 6 inches are transported, a minimum of 23 feet 4 inches should be used in design to allow for reballasting and normal maintenance of track
  • GUIDELINES FOR THE DESIGN AND CONSTRUCTION OF RAILROAD OVERPASSES AND . . .
    The access road shall be built as far away from the active tracks as possible and shall provide a minimum clearance of twenty-five (25) feet from the centerline of the track to the nearest edge of the roadway
  • Railroad Overpass and Underpass Guidelines
    This document provides guidelines for the design and construction of railroad overpasses and underpasses It contains 24 sections covering topics such as structure selection criteria, preferable underpass structure types, design specifications, construction specifications, bridge layout, clearances, loads, materials, and submittal requirements
  • Station Overpasses Train System Engineering Standard
    The purpose of this standard is to outline the design requirements for overpasses at the station precinct This standard should be read in conjunction with the remainder of the DIT Station Standards for the Train System, as listed in DIT Master Specification Part RW-STS-D1 Stations
  • Track Spacing and Structure Limiting Dimensions
    According to the Board of Trade Rules, a check rail must be provided to the inside rail of the curve on curves of 10 chains (4620mm or 15ft 2in in 7mm scale) radius or less This check rail is often slightly elevated above the running rails and made from 11ft 0in older second hand rail
  • Highway-Rail Crossing Handbook (3rd Edition)
    This is a required safe driving practice in conformance with the Uniform Vehicle Code, which states “ vehicles must stop within 15 to 50 feet from the crossing when a train is in such proximity so as to constitute an immediate hazard ”(9) Therefore, the existence of a crossing may cause some delays to motorists who slow to look for a train
  • Chapter 13. Design of Steel Elevated Railways - nycsubway. org
    It is essential that the columns be placed far enough from the curb to allow two lines of vehicles to pass between A minimum of from 15 to 16 ft is required for safety
  • Guidelines for the Design and Construction of Grade Separation Highway . . .
    Section 2 3 3 4 of the AASHTO LRFD Bridge Design Specifications addresses clearances for railroad overpasses The following provisions of that Section are specific to horizontal and vertical clearances:
  • Railroad Bridge Types Guide
    A viaduct is a specific type of bridge that consists of a series of arches, piers or columns supporting a long elevated railway or road Typically a viaduct connects two points of roughly equal elevation, allowing direct overpass across a wide valley, road, river, or other low-lying terrain features and obstacles
  • Design and Construction Criteria for Overhead Bridges
    For multi-column piers, the crash wall shall connect the columns and extend at least 1 foot beyond the outermost columns parallel to the track Crash walls shall be anchored to the footings and columns as applicable and shall extend to at least four feet below the lowest surrounding grade





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