Arch (9,419)
Boston, Massachusetts (30)
Built 1917 (395)
Built during 1910s (6,729)
Charles River (16)
Deck arch (8,700)
Flared (407)
Massachusetts (431)
Middlesex County, Massachusetts (97)
| Navigable waterway (1,448)
Open (28,310)
Owned by state (9,808)
Skewed (4,080)
Span length 75-100 feet (4,718)
Suffolk County, Massachusetts (39)
Total length 175-250 feet (2,789)
US 20 (49)
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