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Dorchester Avenue Bridge


Street View 


The Dorchester Avenue Bridge was originally a truss rolling drawbridge over the Fort Point Channel. The section of the channel which it crosses has now been partially filled in with railroad tracks, but when the original bridge opened, it was a navigable waterway.

When the old drawbridge was replaced, Dorchester Avenue was still a through street for all traffic. However, the section south of the Summer Street Bridge was closed to all traffic during the Big Dig due to the Fort Point Channel Tunnel on I-90 passing directly underneath the bridge. Following the completion of the Big Dig, the southern section of Dorchester Avenue remained closed indefinitely to public traffic due to its close proximity to the Massachusetts State US Postal Service headquarters.


Girder bridge over Fort Point Channel on Dorchester Avenue (Private section)
Boston, Suffolk County, Massachusetts
Open to authorized vehicles only
Built to replace an original drawbridge; closed indefinitely to through traffic due to security concerns with its proximity to USPS headquarters
Approximate latitude, longitude
+42.34576, -71.05681   (decimal degrees)
42°20'45" N, 71°03'25" W   (degrees°minutes'seconds")
Approximate UTM coordinates
19/330581/4690215 (zone/easting/northing)
Quadrangle map:
Boston South
Inventory number
BH 78990 (Bridgehunter.com ID)

Update Log 

  • October 24, 2017: New Street View added by Matthew