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NH - Lyman Viaduct



Photo taken on July 4, 1871


View this photo at doddcenter.wordpress.com

BH Photo #234229



Buried Deck truss bridge over Dickinson Creek on former New Haven, Middletown and Willimantic Railroad in Colchester
Colchester, New London County, Connecticut
Filled in
Built 1871-73, buried by fill in 1912-13, railroad abandoned in 1965
- Edward W. Serrell of London, England, United Kingdom (engineer)
- Phoenix Iron Co. of Philadelphia, Pennsylvania (iron manufacturer)
- Boston & New York Air-Line Railroad (B&NY)
- New Haven, Middletown & Willimantic Railroad (NHM&W)
- New York, New Haven & Hartford Railroad (NH)
Wrought iron deck truss
Total length: 1,100.0 ft.
Posted to the National Register of Historic Places on August 21, 1986
Approximate latitude, longitude
+41.56430, -72.44996   (decimal degrees)
41°33'51" N, 72°26'60" W   (degrees°minutes'seconds")
Approximate UTM coordinates
18/712631/4604543 (zone/easting/northing)
Quadrangle map:
Inventory numbers
NRHP 86002729 (National Register of Historic Places reference number)
BH 48763 (Bridgehunter.com ID)

Update Log 

  • August 1, 2013: Updated by Luke Harden: Corrected truss type to "Othe"r, as Post Deck Truss is not among the categories avaliable.
  • August 1, 2013: New photo from Jacob P. Bernard
  • April 20, 2013: New photos from Jacob P. Bernard
  • June 28, 2012: New photo from Jacob P. Bernard
  • May 12, 2011: Added by Jacob P. Bernard


NH - Lyman Viaduct
Posted March 14, 2016, by ArtS (asuckewer [at] knite [dot] com)

You have painted a rather humorous picture in my mind :^)

NH - Lyman Viaduct
Posted March 14, 2016, by Clark Vance (cvance [at] dogmail [dot] com)

We'll need buckets....

NH - Lyman Viaduct
Posted March 13, 2016, by Tony Dillon (spansaver [at] hotmail [dot] com)

I say we...The entire Bridgehunter Nation...Don shovels and dig that sucker out!!! ;-)

NH - Lyman Viaduct
Posted March 13, 2016, by ArtS (asuckewer [at] knite [dot] com)

No worries. I came across it while doing a category search so I thought I'd ask.

NH - Lyman Viaduct
Posted March 13, 2016, by Luke

I might have been half-asleep when I made the edit, because I can't figure out how I'd have thought this was a post truss either...

NH - Lyman Viaduct
Posted March 13, 2016, by ArtS (asuckewer [at] knite [dot] com)


I did a category search on Post trusses and this bridge came up. I'm not sure how this is a Post truss. To me, it looks like the South American viaduct built by Phoenix that incorporates the Fink trusses (minus the multi-panel Finks of course). I didn't want to change it in case I'm missing something.

That said, it is absolutely amazing that the entire 1870's structure, Phoenix Columns and all, remains intact under a gigantic mass of fill!


Art S.