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Re: East Broad Top Tunnels - Lidar Scans

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CR BT Dispr

February 13, 2024 06:04PM

Registered: 4 years ago
Posts: 198

From the 1917 sheet - Both tunnels have similar vertical curves. Sideling (837') enters on a 2% grade and crests to a -.3% about 3/4 of the way through. Wray's (1228') enters on a 2.12% and crests to a -.3% about 2/3 of the way through. Sideling is mostly tangent to a 17 Deg. R curve starting 110' from the west end. Wray's is tangent with a 6 Deg L curve starting 8' inside the west portal. I seem to recall there was some work done to at least one of the portals (30s?) so there may be some differences.

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Subject	Author	Posted
East Broad Top Tunnels - Lidar Scans	jsmithebtrr	February 09, 2024 10:03AM
Re: East Broad Top Tunnels - Lidar Scans	narrowgaugenut	February 09, 2024 01:41PM
Re: East Broad Top Tunnels - Lidar Scans	tgbcvr	February 09, 2024 02:56PM
Re: East Broad Top Tunnels - Lidar Scans	guymonmd	February 09, 2024 04:36PM
Re: East Broad Top Tunnels - Lidar Scans	Dave Peterson	February 10, 2024 09:39AM
Re: East Broad Top Tunnels - Lidar Scans	Sharrod	February 12, 2024 06:26AM
Re: East Broad Top Tunnels - Lidar Scans	John K	February 12, 2024 11:01AM
Re: East Broad Top Tunnels - Lidar Scans	Kelly Anderson	February 12, 2024 02:07PM
Re: East Broad Top Tunnels - Lidar Scans	John K	February 12, 2024 02:25PM
Re: East Broad Top Tunnels - Lidar Scans	Kelly Anderson	February 12, 2024 03:11PM
Re: East Broad Top Tunnels - Lidar Scans	John West	February 12, 2024 04:52PM
Re: East Broad Top Tunnels - Lidar Scans	jvliet	February 13, 2024 06:22AM
Re: East Broad Top Tunnels - Lidar Scans	Bruce R. Pier	February 13, 2024 10:25AM
Re: East Broad Top Tunnels - Lidar Scans	Rader Sidetrack	February 13, 2024 02:38PM
Re: East Broad Top Tunnels - Lidar Scans	John K	February 12, 2024 05:12PM
Re: East Broad Top Tunnels - Lidar Scans	CR BT Dispr	February 13, 2024 06:04PM
Re: East Broad Top Tunnels - Lidar Scans	John K	February 13, 2024 08:05PM
Re: East Broad Top Tunnels - Lidar Scans	tgbcvr	February 16, 2024 07:21PM
Tunnel design	John K	February 17, 2024 04:10PM
Re: East Broad Top Tunnels - Lidar Scans	Kelly Anderson	February 17, 2024 04:17PM
Re: East Broad Top Tunnels - Lidar Scans	WilliamDiehl	February 21, 2024 09:56AM
Re: East Broad Top Tunnels - Lidar Scans	John K	February 21, 2024 09:59AM
Re: East Broad Top Tunnels - Lidar Scans	WilliamDiehl	February 21, 2024 03:22PM
Re: East Broad Top Tunnels - Lidar Scans	John K	February 21, 2024 05:48PM
Re: East Broad Top Tunnels - Lidar Scans	Rick Steele	February 22, 2024 09:23AM

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488 stops for water at Los Pinos tank on closing day Oct. 1979. Photo courtesy Don Richter

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