ST 1 A/nb over Other Relief

Fair Condition75 years old29,117 vehicles/day

Location

StateMassachusetts
CountySuffolk
Location2000 Ft NE Callahan Tun
CarriesST 1 A/nb
CrossesOther Relief
Coordinates42.37253, -71.03428

Condition Ratings

Overall ConditionFair
Deck7 (Good)
Superstructure6 (Satisfactory)
Substructure5 (Fair)
Scour CriticalNot applicable

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length204.1 ft (62.2 m)
Max Span74.1 ft (22.6 m)
Deck Width44.9 ft (13.7 m)
Deck Area852.1 sq m
Main Spans3
Year Built1951 (reconstructed 2005)

Traffic

Avg Daily Traffic29,117 (2023)
Truck Traffic4%
Lanes On Bridge2

Inspection & Ownership

Last InspectionDecember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure NumberB1623539VDOTNBI

Nearby Bridges

HWY Porter ST over Other Pedestrian Wlkwy 0.0 mi Fair ST 1 A/sb over Other Relief & Ped Walkw 0.0 mi Fair ST 1 A NB over Other Relief 0.1 mi Fair ST 1 A over HWY Chelsea & Bremen S 0.1 mi Fair ST 1 A/sb over Other Relief 0.1 mi Fair ST 1 A/sb over Other Relief 0.2 mi Fair ST 1 A/rp E-1asb over Comb ST 1a NB & Blue L 0.2 mi Good ST 1 A/sb over Other Relief 0.2 mi Good HWY Meridian ST over ST 1 A/nb 0.2 mi Fair HWY Maverick ST over Other Pedestrian Wlkwy 0.3 mi Fair