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Field Street Bridge

Plymouth County, Massachusetts

Photos 

MBTA - Field Street Bridge

HAER Photo

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BH Photo #471223

Map 

Description 

"The oldest (1894) and one of the least altered of a group of 5 similar single-intersection Warren pony truss bridges built for the NYNH&H RR in Brockton in the 1890s. All of these 5 bridges have unusual box-section upper chords and end posts with angles facing inward rather than outward. The outer profile of such an upper chord is a simple, flat-sided box studded with rivet heads--much more attractive than the standard upper-chord design with outward-facing angles. Metal truss bridges with upper chords of these type have never been common in Massachusetts - this is the oldest known example in the MDPW database." -S.J. Roper, 10/20/1987

Facts 

Overview
Pony truss bridge over MBTA on Field Street
Location
Brockton, Plymouth County, Massachusetts
Status
Replaced by a new bridge
History
Built 1894; replaced 1997
Builders
- Boston Bridge Works of Boston, Massachusetts
- W.H. Moore (engineer)
Railroads
- Massachusetts Bay Transportation Authority (MBTA)
- New York, New Haven & Hartford Railroad (NH)
- Old Colony Railroad (OC)
- Penn Central Railroad (PC)
Design
Warren pony truss with no verticals
Dimensions
Length of largest span: 70.0 ft.
Total length: 73.0 ft.
Deck width: 49.7 ft.
Recognition
Eligible for the National Register of Historic Places
Approximate latitude, longitude
+42.10512, -71.02097   (decimal degrees)
42°06'18" N, 71°01'15" W   (degrees°minutes'seconds")
Approximate UTM coordinates
19/332900/4663423 (zone/easting/northing)
Average daily traffic (as of 2017)
2,357
Inventory number
BH 89152 (Bridgehunter.com ID)
Inspection report (as of January 2017)
Overall condition: Good
Superstructure condition rating: Very Good (8 out of 9)
Substructure condition rating: Good (7 out of 9)
Deck condition rating: Good (7 out of 9)
Sufficiency rating: 91.7 (out of 100)
View more at BridgeReports.com

Categories 

19th Century (7,557)
Boston Bridge Works (103)
Brockton, Massachusetts (9)
Built 1894 (240)
Built during 1890s (2,982)
Lost (24,712)
Lost 1997 (407)
Lost during 1990s (3,981)
Massachusetts (1,104)
Massachusetts Bay Transportation Authority (128)
NR-eligible (4,046)
New York, New Haven & Hartford Railroad (511)
Old Colony Railroad (18)
 Owned by state (15,982)
Penn Central Railroad (1,347)
Plymouth County, Massachusetts (38)
Pony truss (16,181)
Replaced by new bridge (16,566)
Span length 50-75 feet (10,073)
Total length 50-75 feet (9,299)
Truss (32,771)
W.H. Moore (1)
Warren pony truss (3,357)
Warren pony truss with no verticals (50)
Warren truss (6,563)

Update Log 

  • May 22, 2020: Updated by Ian Martin: Added MACRIS database info.
  • May 21, 2020: Updated by Ian Martin: Bridge has been replaced
  • April 28, 2020: New photos from Geoff Hubbs

Sources 

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