Road Tunnel

[landnrailroader]

I guess they are found everywhere but along L&N and Clinchfield lines road tunnels under the track come in many shapes and sizes. The one in the image is near Grays Station, TN a location on the Clinchfield a few miles south of Kingsport and there is no sign showing the clearance. It appears to be about 10 feet and it also appears to be a one lane tunnel although we can see the road centerline on the far side. A few miles further south there is one with a rounded top that looks more like a tunnel and it has a sign showing 8'6". When I create one of these, using TSM I usually put a ridge or curb at the point where it should be placed relative to the road. Usually I place the tunnel and then adjust the height of the road. Rarely do we see these with a vertical clearance over 15 feet. Another similar point occurs with railroad tunnels. When I worked for CSX, the CAD system was often used to illustrate desired clearances and for double stack routes, the minimum was 27 feet which allowed perhaps a foot of clear space, although whenever possible 30 feet was used.

Another thing often seen on L&N lines was a L&N herald on the side of a girder bridge of either type. To do this I added a herald to Ron Picardi's texture file for plate girder spans. I know that this was also done on similar bridges along MRS Logistica lines in Brazil so I guess it is found in lots of placees.

ROAD_TNL.jpg
Jerry

[yellowdog]

I used to live on the property just right of where this capture was taken. It was owned by a church at the time, which planned to build a new facility. In the meantime they had a pavilion in the woods and would host events out there. I stayed in a double-wide trailer, as "caretaker." Eventually the plan changed and they built somewhere else. It's an apartment complex now, but I believe the pavilion is still there in the woods, converted to a maintenance facility.

[eric]

I'd call it an oversize culvert.... there are a few of these on the Surfliner for beach access, but not all are big enough for a vehicle bigger than an ATV.

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[yellowdog]

Looking at the pic again, I realized that's not the underpass on Gray Station Rd. It's the underpass on Roy Martin Rd, between Gray Station and Freehill Tunnel. It actually is longer, and is more of a tunnel. There's another one just north of Gray Station on Kitzmiller Rd. I was friends with one of the Kitzmillers in grade and high school.

But probably the most famous is Sensabaugh Tunnel, just south of Frisco. Last summer I went to visit my parents, and my sister and brother-in-law also joined. They'd gotten hooked on some ghost stories, and had decided to go check out Sensabaugh Tunnel. So in the middle of the night, that's what we did--three middle-aged adults drove into the tunnel and turned off the lights to wait for the ghosts to show up.