United States Department of Transportation
i
Evaluation of the train signal and rail systems for the Anton Anderson Memorial Tunnel.
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2014-07-01
[PDF-16.91 MB]
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Abstract:The Whittier Access Project was completed in 2000. One phase of the project was to convert the 2.5 mile long Anton Anderson
Memorial Tunnel (Whittier Tunnel) into the world’s only dual-use highway/railroad tunnel with one way reversible highway traffic.
This unique project incorporated many elements that had never been used before in tunnels.
The primary objective of this research project is to identify the problems affecting the train signal and the unique rail systems and
drainage. The problems identified during the tunnel evaluation included: 1) progressive failure of the train signal system; 2) subsurface
drainage; 3) drainage from the tunnel crown; 4) settlement of invert panels; 5) cracks in the precast concrete panels; 6) possible
corrosion of the rail/panel connections, and 7) possible corrosion of the rebar in the invert panels.
This report recommends the development of three CIP projects to extend the performance life of the tunnel: 1) Replace Track Circuit
System (TCS) with an axle counter system for train detection in the Whittier Tunnel; 2) Drainage Improvements to install additional
water control systems in the tunnel crown and modifications to the existing water control system; and 3) Invert Panel Preservation
Project to replace the asphalt in the rail insert.
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