CONSTRUCTION CLEARANCES. The Contractor shall abide by the twenty-one (21) foot temporary vertical construction clearance defined in section 4.4.1.1 and twelve (12) foot temporary horizontal construction clearance defined in section 4.4.1.2 of BNSF and UPRR Guidelines for Railroad Grade Separation Projects. It shall be the Contractor's responsibility to obtain such guidelines from the Political Body or Railroad. Reduced temporary construction clearances, which are less than construction clearances defined above, will require special review and approval by the Railroad. Any proposed variance on the specified minimum clearances due to the Contractor's operations shall be submitted to the Railroad Project Representative through the Political Body at least thirty (30) days in advance of the work. No work shall be undertaken until the variance is approved in writing by the Railroad Project Representative.
CONSTRUCTION CLEARANCES. During construction of this Project clearances may not be restricted to less than fifteen feet (15’) horizontally from centerline of track, and twenty-two feet (22’) vertically from top of rail elevation unless authorized by Railroad. This restriction applies to the performance of any work near the Railroad's track(s) including any excavation, slope encroachment, or driving of sheetpiles. The Agency and its contractor will not leave any vehicles or machines unattended within fifteen feet (15’) horizontally from centerline of a secondary track or within twenty-five feet (25’) horizontally from centerline of a mainline track.
CONSTRUCTION CLEARANCES. Temporary horizontal and vertical construction clearances shall be shown on the plans for all Grade Separation Projects impacting the Railroad. Every effort must be made to design for greater clearances. Greater clearances may be required for special cases to satisfy local operating conditions such as required sight distance for signals. Reduced temporary construction clearances, which are less than construction clearances defined in Section 4.4.1.1 and 4.4.1.2, will require special review and approval by the Railroad.
