US Bridges

HWY So Sta Conn over Comb MBTA & Relief

Good

Suffolk County, Massachusetts · South Station · Structure no. B16677BQ7MBTNBI

Built
1995
30 years old
Condition
Good
inspected September 2021
Type
Box Beam or Girders - Multiple
Steel
Length
77 ft
1 main span
Daily traffic
—
Owner
State
Other State Agency

About this bridge

HWY So Sta Conn over Comb MBTA & Relief is a steel box beam or girders - multiple carrying HWY So Sta Conn 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 77 ft (23.4 m) long and 69 ft wide.

CarriesHWY So Sta Conn
CrossesComb MBTA & Relief
LocationSouth Station
RouteInterstate 0
Coordinates42.34882, -71.05687
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 inspectionSeptember 2021
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment0: Immediate repair necessary to put back in service
Operating rating73.2 US tons
Inventory rating44 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length77 ft (23.4 m)
Longest span77 ft (23.4 m)
Deck width69 ft (21 m)
Roadway width65 ft (19.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic—
Projected traffic—
Trucks0%
Lanes on structure4
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$8.9 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

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

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

What condition is HWY So Sta Conn 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 September 2021.

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

No traffic count is recorded for this structure.

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

The structure is 77 ft (23.4 m) long with a longest span of 77 ft (23.4 m) and a deck 69 ft wide.

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

It is owned by the Other State Agency.