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MBTA - Route 62 Overpass

Photo 

Route 62 Railroad Bridge - North Elevation

Photo taken by Ian Martin in January 2015

Enlarge

BH Photo #324233

Map 

Street View 

Description 

"The single track Fitchburg Railroad main line reached Waltham in December 1843, Concord in June 1844, and Fitchburg in March 1845. Construction of a second track began in 1845 and was completed in 1849. The Boston and Maine Railroad obtained control of the Fitchburg Railroad in 1900 and the MBTA purchased the section between Boston and Fitchburg in 1976.

The original bridge on this site, built in 1897 to carry two tracks over Main Street, was constructed as part of a grade crossing elimination project. The superstructure was rebuilt in 1927 with the present simply supported, ballast deck through girder bridge. The superstructure consists of three built-up steel plate girders, rolled steel floor beams, and a ballast deck. The girders are spaced approximately 14'-0" on center. The 1897 substructure consists of coursed ashlar stone abutments."

-Peter Stott, MBTA Historical Property Survey Phase II, 9/1988

Facts 

Overview
Pony/through plate girder bridge over Route 62/Main Street on MBTA Fitchburg Line
Location
Concord, Middlesex County, Massachusetts
Status
Replaced by a new bridge
History
Built 1927 by Boston Bridge Works; replaced 2015
Builder
- Boston Bridge Works of Boston, Massachusetts
Railroads
- Boston & Maine Railroad (B&M; BM)
- Commuter Rail
- Fitchburg Railroad
- Massachusetts Bay Transportation Authority (MBTA)
Design
Pony plate girder
Dimensions
Span length: 50.7 ft.
Total length: 50.7 ft.
Deck width: 28.2 ft.
Also called
MBTA - Main Street Overpass
Approximate latitude, longitude
+42.45784, -71.36831   (decimal degrees)
42°27'28" N, 71°22'06" W   (degrees°minutes'seconds")
Approximate UTM coordinates
19/305269/4703328 (zone/easting/northing)
Quadrangle map:
Concord
Inventory number
BH 67506 (Bridgehunter.com ID)

Update Log 

  • August 29, 2015: Updated by Ian Martin: Demolished last night; new bridge rolled in this morning
  • May 10, 2015: New Street View added by Ian Martin

Sources 

Comments 

MBTA - Route 62 Overpass
Posted August 25, 2015, by Ian Martin

Being replaced this weekend as part of the Fitchburg Line upgrade project.