3 votes

CSX - Carrollton Viaduct


Aerial View Of Viaduct Looking Northwest

Photo taken by Historic American Engineering Record

View photos at Library of Congress

BH Photo #128403

Street View 


Stone arch bridge over Gwynn's Falls
Baltimore, Maryland
Open to traffic
Built in 1829 for the Baltimore and Ohio Railroad, this is the oldest railroad bridge in the world still in use.
- Caspar Weaver
- James Lloyd of Hagerstown, Maryland
- Baltimore & Ohio Railroad (BO)
- CSX Railroad (CSX)
Stone arch
Length of largest span: 80.0 ft.
Total length: 312.0 ft.
Deck width: 22.0 ft.
Posted to the National Register of Historic Places on November 11, 1971
Approximate latitude, longitude
+39.27531, -76.65494   (decimal degrees)
39°16'31" N, 76°39'18" W   (degrees°minutes'seconds")
Approximate UTM coordinates
18/357248/4348633 (zone/easting/northing)
Quadrangle map:
Baltimore West
Inventory numbers
NRHP 71001032 (National Register of Historic Places reference number)
BH 38199 (Bridgehunter.com ID)

Update Log 

  • January 4, 2022: New Street View added by Dave King
  • March 9, 2020: New photo from Alexander D. Mitchell IV
  • October 16, 2016: New photo from Dave King
  • April 19, 2009: New photo from Daniel McFarland
  • November 23, 2008: Added by James Baughn


  • Daniel McFarland
  • HAER MD-9 - Baltimore & Ohio Railroad, Carrollton Viaduct, Spanning Gwynn's Falls near Carroll Park, Baltimore, Independent City, MD
  • Wikipedia
  • Dave King - DKinghawkfan [at] hotmail [dot] com
  • Alexander D. Mitchell IV


CSX - Carrollton Viaduct
Posted July 17, 2021, by Geoff Blyth (gwrblyth [at] gmail [dot] com)

"this is the oldest railroad bridge in the world still in use".

Sorry that's not true. The Skerne Bridge at Darlington on the Stockton & Darlington Railway, Co Durham, England, holds that honour. Construction stated in 1824 and it was completed the following year, prior to the opening on 27 September 1825.

The next oldest oldest is at Machen in South Wales, dating from 1826. Both are still in use for traffic.

So far as I know, the Carrollton Viaduct is the third oldest. The B&O opened 3 months before the Liverpool & Manchester Railway, generally regarded as the first main line in the world - double track from the outset, all trains operated by the company and hauled by locomotives.