ST 3 A/morrsy Blv over Comb Neponset Ave&river

Fair Condition56 years old76,500 vehicles/day

Location

StateMassachusetts
CountySuffolk
Location.2 Mi E Of I 93
CarriesST 3 A/morrsy Blv
CrossesComb Neponset Ave&river
Coordinates42.28444, -71.03953

Condition Ratings

Overall ConditionFair
Deck7 (Good)
Superstructure6 (Satisfactory)
Substructure7 (Good)
Channel/Waterway7 (Good)
Scour Critical8 — Stable, low risk

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length1018.0 ft (310.3 m)
Max Span175.9 ft (53.6 m)
Deck Width98.8 ft (30.1 m)
Deck Area9340.0 sq m
Main Spans9
Year Built1970 (reconstructed 2012)

Traffic

Avg Daily Traffic76,500 (2019)
Truck Traffic2%
Lanes On Bridge6
Lanes Under Bridge1

Inspection & Ownership

Last Inspection423
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure NumberB163904F7DOTNBI

Nearby Bridges