Rating:
1 vote

ST - West Main Street Overpass

Photo 

West Main Street Railroad Bridge

Photo taken by Ian Martin in January 2015

Enlarge

BH Photo #311564

Map 

Street View 

Description 

The Peterborough & Shirley Railroad was incorporated in 1845, opening for public use from Groton Junction (now Ayer) to West Townsend in January 1848, and to the state line during the year 1850. In 1847, prior to its opening, the line was leased to the Fitchburg Railroad. The Fitchburg itself was acquired by the Boston & Maine Railroad in 1900. The Greenville Branch as far as the NH line was purchased by the MBTA from the B&M in 1976. Originally 23.00 miles, Ayer, Mass. to Greenville, New Hampshire, today the single track line is in service from Ayer only as far as Vose (West Groton).

The thru plate girder span, along with the companion span over Mill Street, were both constructed in 1897 by the Edge Moor Bridge Works, of Wilmington, Delaware. The 55-foot length of the West Main Street span makes it the longest of the four plate-girder bridges on the Greenville Branch.

-P.H. Stott, MBTA Historical Property Survey Phase II, 12/1987

Facts 

Overview
Pony/through plate girder bridge over West Main Street on B&M Greenville Branch
Location
Ayer, Middlesex County, Massachusetts
Status
Open to traffic
History
Built 1897
Builder
- Edge Moor Bridge Works of Wilmington, Delaware
Railroads
- Boston & Maine Railroad (B&M; BM)
- Fitchburg Railroad
- Guilford Rail System (GRS)
- Pan Am Railways (PAR)
- Springfield Terminal Railway (ST)
Design
Pony plate girder
Dimensions
Length of largest span: 53.5 ft.
Total length: 55.0 ft.
Deck width: 14.0 ft.
Skew angle
16 degrees
Approximate latitude, longitude
+42.56022, -71.59183   (decimal degrees)
42°33'37" N, 71°35'31" W   (degrees°minutes'seconds")
Approximate UTM coordinates
19/287237/4715235 (zone/easting/northing)
Quadrangle map:
Ayer
Inventory number
BH 65204 (Bridgehunter.com ID)

Update Log 

  • January 2, 2015: New Street View added by Ian Martin

Sources 

  • Ian Martin