RAILROAD SIGNALS of the U.S.
RAILFAN
GUIDE to
MT AIRY, MD
Mt Airy is on what used to be the B&O's Old Main Line, which runs from Relay/St Denis in Elkridge MD, to Point of Rocks MD. It was the B&O's first route west, built between 1828 and 1835, until it started building the now current mainline going through Washington DC in 1835. At one time, the railroad line went through town, hence, the depot in downtown Mt Airy. The B&O ended passenger service to Mt Airy around 1950, and the track was removed in the 1970's. The tunnel looks to have been built around 1900, as a way to straighten the path that went around Mt Airy in a loop, and get rid of the accompanying grades.
If you really want to spend some time in the area looking for bits and pieces of the Old Main Line, check out Steve's tour in the second link below.
There are no MARC and Amtrak trains coming through Mt Airy.
Some additional info at:
http://wikimapia.org/4977066/Former-B-O-Railroad-Station
http://www.trainweb.org/oldmainline/omlloop1.htm
For other guides of the area:
Click
here for a guide
to the central Maryland area,
Click
here for a guide
to Point of Rocks MD,
Click
here for a guide
to Harpers Ferry WV.
Getting Here
From the north, whether I83 from Harrisburg (and beyond, like Rochester, Albany, or Syracuse), or from NJ, NY and beyond (coming down I95), take the Beltway west around Baltimore to I70. Take I70 west to exit 68, and the town will be on the north side of the interstate.
If you are coming from the west, you'll probably be on I70 already, so just stay on it till you get to exit 68.
Coming up from the south west, as in I81, take I70 east in Hagerstown, and pass through Frederick to get to Mt Airy.
From DC, you have a couple of choices, but the quickest way is probably to go up head up I270 to exit 16, Ridge Rd, and take it north... it will turn into MD27 on the other side of MD355, North Frederick Rd. MD27 runs right into Mt Airy. The other way is to stay on 270 to Frederick, and then take I70 east to Mt Airy, exit 68.

Click here for the above map in PDF version.

Click here for the Central MD map in PDF version.
Click here for the maps of Harpers Ferry, Brunswick, Point of Rocks, Mt Airy and central MD in one PDF.
1 The B&O Depot

Looking south from the depot, along Main street, and some of the local boutique
eateries.
2 The Tunnel

The east portal, right off the I70 WB exit ramp.... Summertime
is not a good time to try to walk in! Too much underbrush...

The west portal, looking towards the south, conveniently
located off of W Ridgeville Blvd at Rising Ridge Rd.
3 The Short Industrial Spur
Just west of the tunnel, is a small spur going into town (which was originally part of the Mt Airy loop). There is also a small interlocking where the spur joins the mainline, at the beginning of the passing siding. There are signals at both ends of the siding. The end of the spur can be seen in the above photo of the depot.

Looking east (L), and west (R) towards the mainline.
The mainline doesn't get a whole lot in the way of protection
(as Ridgeville (above) does) because the road is hardly used.
Bonus material... Chessie system NO TRESSPASSING
sign, and flange lubricator.
4 The Siding and Signals
1 Eastern WB signal


Summertime is not a good time to go signal chasing!
2 Eastern EB signals

3 Western WB signals

4 Western EB signal

5 Under I70


New: 3-21-2010
Mod: 14-Aug-2010