US Bridges

HWY So Sta Buswy over Comb MBTA & Relief

Good

Suffolk County, Massachusetts · South Station · Structure no. B16677BQ9MBTNBI

Built
1995
30 years old
Condition
Good
inspected October 2021
Type
Box Beam or Girders - Multiple
Steel
Length
110 ft
2 main spans
Daily traffic
—
2000 count
Owner
State
Other State Agency

About this bridge

HWY So Sta Buswy over Comb MBTA & Relief is a steel box beam or girders - multiple carrying HWY So Sta Buswy over Comb MBTA & Relief in Suffolk County, Massachusetts. It was built in 1995, so it is 30 years old, younger 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.

No traffic count is recorded. The structure is 110 ft (33.4 m) long and 40 ft wide.

CarriesHWY So Sta Buswy
CrossesComb MBTA & Relief
LocationSouth Station
RouteInterstate 0
Coordinates42.34903, -71.05675
Functional classUrban Local

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 inspectionOctober 2021
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment0: Immediate repair necessary to put back in service
Operating rating83.2 US tons
Inventory rating49.6 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length110 ft (33.4 m)
Longest span78 ft (23.8 m)
Deck width40 ft (12.3 m)
Roadway width36 ft (11.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic—
Projected traffic—
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerOther State Agency
Maintained byOther State Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of relocation of road
Estimated improvement cost$6.1 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was HWY So Sta Buswy over Comb MBTA & Relief built?

It was built in 1995, making it 30 years old in 2025.

What condition is HWY So Sta Buswy over Comb MBTA & Relief 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 October 2021.

How much traffic does HWY So Sta Buswy over Comb MBTA & Relief carry?

No traffic count is recorded for this structure.

How long is HWY So Sta Buswy over Comb MBTA & Relief?

The structure is 110 ft (33.4 m) long with a longest span of 78 ft (23.8 m) and a deck 40 ft wide.

Who owns HWY So Sta Buswy over Comb MBTA & Relief?

It is owned by the Other State Agency.