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Bollman Iron Truss Bridge - OU0194
Former Railroad Bridge (Now, Pedestrian)
Owner: DudleyGrunt
N 39° 08.109' W 76° 49.506' N 39° 08' 6.54'' W 76° 49' 30.36'' N 39.13515°  W 76.82510° 
Altitude: m. ASL.
 Region: United States > Maryland
Cache type: Virtual
Size: No container
Status: Ready for Search
Date hidden: 2009-05-07
Date created: 2010-11-29
Date published: 2010-11-29
Last modification: 2018-09-03
4x Found
0x Not found
0 notes
watchers 0 watchers
17 visitors
4 x rated
Rated as: Excellent
Cache attributes

Quick Cache  Kid Friendly  Wheelchair Access  Available in Winter  Historic Site  Listed on OCNA Only  Password needed to post log entry! 

Please read the Opencaching attributes article.
Description EN

Built in 1869, the Bollman Iron Truss Bridge, spanning the Little Patuxent River, is the sole surviving example of the bridging system invented, 1850, by Wendel Bollman, a Baltimore engineer. It was the first system, entirely of iron, used by the Baltimore and Ohio Railroad and was the first in America. The company built about 100 such bridges through 1873.

In 1966, under a new program of the American Society of Civil Engineers, it was designated the first ever Historic Civil Engineering Landmark. The bridge was listed on the National Historic Landmark on December 18, 1972, and was designated a National Register of Historic Places on February 16, 2000.

When I was in middle school, I lived nearby and used to enjoy exploring the bridge, nearby ruins, and the river. I hope you enjoy the site, as well.


Logging Requirements:

From the posted coordinates, you will find some plaques. You need to find a four digit number on a blue background. This will serve as the LOG PASSWORD.  You must also post a picture of yourself and/or your GPS with the bridge.

Bollman Bridge

Wikipedia Article

History and Analysis


Maryland Geocaching Society

Log entries: Found 4x Not found 0x Note 0x Picture 3x All entries Gallery