US Bridges

HWY Babson ST over RR MBTA

Good

Suffolk County, Massachusetts · 1.2 KM NE OFJCTSR28&SR138 · Structure no. B161643H9DOT634

Built
1901
124 years old, rebuilt 2002
Condition
Good
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
142 ft
2 main spans
Daily traffic
10,000
2024 count
Owner
State
State Highway Agency

About this bridge

HWY Babson ST over RR MBTA is a steel continuous stringer/multi-beam or girder carrying HWY Babson ST over RR MBTA in Suffolk County, Massachusetts. It was built in 1901 and reconstructed in 2002, so it is 124 years old, older than the Massachusetts average of 63.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 10,000 vehicles a day, roughly 5% of them trucks, projected to reach 12,003 by 2031. The structure is 142 ft (43.3 m) long and 49 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesHWY Babson ST
CrossesRR MBTA
Location1.2 KM NE OFJCTSR28&SR138
RouteCity Street 0
Coordinates42.2744, -71.09209
Functional classUrban Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating87.7 US tons
Inventory rating52.6 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length142 ft (43.3 m)
Longest span77 ft (23.6 m)
Deck width49 ft (14.9 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,000 (2024)
Projected traffic12,003 by 2031
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$3.1 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was HWY Babson ST over RR MBTA built?

It was built in 1901, making it 124 years old in 2025. It was reconstructed in 2002.

What condition is HWY Babson ST over RR MBTA in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in December 2024.

How much traffic does HWY Babson ST over RR MBTA carry?

About 10,000 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is HWY Babson ST over RR MBTA?

The structure is 142 ft (43.3 m) long with a longest span of 77 ft (23.6 m) and a deck 49 ft wide.

Who owns HWY Babson ST over RR MBTA?

It is owned by the State Highway Agency.