Tuesday, January 12, 2021

BNSF/CB&Q Sunset Tunnels near Guernsey, WY

(Bridge Hunter)

Tunnel #3:

Tunnel #2: It was daylighted in 1998. A comment by Mike Danneman on one of his photos [RailPictures] confirms that the tunnel was daylighted to add a second track to extend the length of a siding. Mike also indicates that this tunnel was 1,928' long. 

"In the spring of 1998, BNSF daylighted Sunset Tunnel, also known as the 1,928-foot Tunnel 2 between Guernsey and Wendover. The wood-lined tunnel on this 9-mile segment of railroad was originally built by the CB&Q in 1915 and was one of three tunnels on the line. Besides the massive amount of work to remove the tunnel, BNSF also had to stabilize the soft earthen boundaries of the excavation with a concrete mixture sprayed to the sides of the cut, giving the scenery a strange new look. It also gave the railroad a lengthened Stokes siding to the east. Construction techniques aside, given the cracks and numerous anchor bolts, the big cut appears to have given the railroad some maintenance headaches in recent times." [pinterest] Note the landside detector along the bottom of the side wall. 
Bill Kalkman posted
Burlington Northern-Santa Fe ES44AC-6272 & Citirail CREX ES44AC-1411 are on the point of an E/B coal train about to pass under Skyline Drive. Its on BNSF's Canyon Sub approaching E. Stokes. The Guernsey Resovoir is in the distance. This was previously Sunset Tunnel. There is an excellent write-up on how it was daylighted in Robert C. Del Grosso's Burlington Northern & Santa Fe Railway 1998 Annual published by Great Northern Publications. See pages 7 & 8. 2:38PM on 5-11-19 in Hartville, WY.

Tunnel #1:

This topo map confirms my assumptions concerning the numbering of the tunnels.
1951 Guernsey Reserv Quadrangle @ 1:24,000

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