US Bridges

HWY So Sta Conn over HWY Infield Access

Good

Suffolk County, Massachusetts · .5 KM E of I93 · Structure no. B166909ARDOTNBI

Built
2003
22 years old
Condition
Good
inspected February 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
78 ft
1 main span
Daily traffic
3,362
2024 count
Owner
State
State Highway Agency

About this bridge

HWY So Sta Conn over HWY Infield Access is a prestressed concrete stringer/multi-beam or girder carrying HWY So Sta Conn over HWY Infield Access in Suffolk County, Massachusetts. It was built in 2003, so it is 22 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.

It carries about 3,362 vehicles a day, roughly 15% of them trucks. The structure is 78 ft (23.7 m) long and 75 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesHWY So Sta Conn
CrossesHWY Infield Access
Location.5 KM E of I93
RouteInterstate 93
Coordinates42.34879, -71.05975
Functional classUrban Principal Arterial - Interstate

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 inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.3 US tons
Inventory rating46.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length78 ft (23.7 m)
Longest span78 ft (23.7 m)
Deck width75 ft (22.9 m)
Roadway width57 ft (17.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,362 (2024)
Projected traffic—
Trucks15%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesOther
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 statusHistorical significance not determinable at this time
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$2.6 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was HWY So Sta Conn over HWY Infield Access built?

It was built in 2003, making it 22 years old in 2025.

What condition is HWY So Sta Conn over HWY Infield Access 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 February 2024.

How much traffic does HWY So Sta Conn over HWY Infield Access carry?

About 3,362 vehicles per day (2024 count), of which roughly 15% are trucks.

How long is HWY So Sta Conn over HWY Infield Access?

The structure is 78 ft (23.7 m) long with a longest span of 78 ft (23.7 m) and a deck 75 ft wide.

Who owns HWY So Sta Conn over HWY Infield Access?

It is owned by the State Highway Agency.