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CSX - Thomas Viaduct

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Photos 

Aerial View Looking Southeast

Photo taken by Historic American Engineering Record

View photos at Library of Congress

Map 

Street Views 

Description 

The Thomas Viaduct was the first masonry arch bridge built on a curve and remains the largest of its type. Built by the Baltimore & Ohio it remains in use by B & O successor line CSX.

Facts 

Overview
Eight-span stone arch bridge over Patapsco River on the B&O Railroad between Relay and Elkridge
Location
Arbutus, Howard County, Maryland, and Baltimore County, Maryland
Status
Open to traffic
History
Built 1835
Builder
- Benjamin Henry Latrobe II of Philadelphia, Pennsylvania (Designer)
Railroads
- Baltimore & Ohio Railroad (B&O; BO)
- CSX Railroad (CSX)
Design
Stone arch
Dimensions
Total length: 612.0 ft.
Recognition
Posted to the National Register of Historic Places
Approximate latitude, longitude
+39.22192, -76.71317   (decimal degrees)
39°13'19" N, 76°42'47" W   (degrees°minutes'seconds")
Approximate UTM coordinates
18/352113/4342801 (zone/easting/northing)
Quadrangle map:
Relay
Inventory numbers
NRHP 66000388 (National Register of Historic Places reference number)
BH 42365 (Bridgehunter.com ID)

Update Log 

  • October 16, 2016: New photo from Dave King
  • March 17, 2016: New photo from Luke
  • April 16, 2015: New photos from David McCardell
  • September 29, 2014: New photos from Alexander D. Mitchell IV
  • May 26, 2014: Updated by Luke Harden: Added cities
  • September 26, 2012: New photos from Jann Mayer
  • August 17, 2012: Updated by Daniel Hopkins: Added category "Railroad"
  • October 2, 2010: Updated by Ed Hollowell: Added discription.
  • April 19, 2009: Posted HAER photos

Sources 

  • HAER MD-3 - Baltimore & Ohio Railroad, Thomas Viaduct, Spanning Patapsco River, Elkridge, Howard County, MD
  • Ed Hollowell - erhollowell [at] aol [dot] com
  • Wikipedia
  • Jann Mayer - jannmayer [at] gmail [dot] com
  • Luke
  • Alexander D. Mitchell IV
  • David McCardell - mccardelldavid [at] gmail [dot] com
  • Dave King - DKinghawkfan [at] hotmail [dot] com