US Bridges

HWY So Sta Conn over HWY Frontage RD

Good

Suffolk County, Massachusetts · South Station · Structure no. B166779PHMBTNBI

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

About this bridge

HWY So Sta Conn over HWY Frontage RD is a steel box beam or girders - multiple carrying HWY So Sta Conn over HWY Frontage RD 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 262 ft (79.8 m) long and 67 ft wide.

CarriesHWY So Sta Conn
CrossesHWY Frontage RD
LocationSouth Station
RouteInterstate 93
Coordinates42.34846, -71.05722
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 inspectionMay 2021
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43 US tons
Inventory rating26.5 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 25 or greater
Structure length262 ft (79.8 m)
Longest span86 ft (26.3 m)
Deck width67 ft (20.4 m)
Roadway width61 ft (18.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic—
Projected traffic—
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$15.9 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was HWY So Sta Conn over HWY Frontage RD built?

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

What condition is HWY So Sta Conn over HWY Frontage RD 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 May 2021.

How much traffic does HWY So Sta Conn over HWY Frontage RD carry?

No traffic count is recorded for this structure.

How long is HWY So Sta Conn over HWY Frontage RD?

The structure is 262 ft (79.8 m) long with a longest span of 86 ft (26.3 m) and a deck 67 ft wide.

Who owns HWY So Sta Conn over HWY Frontage RD?

It is owned by the Other State Agency.