US Bridges

HWY So Sta Conn over I 93 Ramps Cc Kk D

Good

Suffolk County, Massachusetts · Unit 1 · Structure no. B166779QKMBTNBI

Built
2004
21 years old
Condition
Good
inspected January 2023
Type
Box Beam or Girders - Multiple
Steel Continuous
Length
2,333 ft
2 main spans
Daily traffic
350
2000 count
Owner
State
Other State Agency

About this bridge

HWY So Sta Conn over I 93 Ramps Cc Kk D is a steel continuous box beam or girders - multiple carrying HWY So Sta Conn over I 93 Ramps Cc Kk D in Suffolk County, Massachusetts. It was built in 2004, so it is 21 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 350 vehicles a day, roughly 6% of them trucks, projected to reach 553 by 2031. The structure is 2,333 ft (711 m) long and 669 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesHWY So Sta Conn
CrossesI 93 Ramps Cc Kk D
LocationUnit 1
RouteInterstate 93
Coordinates42.34858, -71.05867
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 inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38.3 US tons
Inventory rating22.9 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length2,333 ft (711 m)
Longest span1,627 ft (496 m)
Deck width669 ft (204 m)
Roadway width630 ft (192 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic350 (2000)
Projected traffic553 by 2031
Trucks6%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesOther
Detour if closed1.9 mi (3 km)
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$1,000 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was HWY So Sta Conn over I 93 Ramps Cc Kk D built?

It was built in 2004, making it 21 years old in 2025.

What condition is HWY So Sta Conn over I 93 Ramps Cc Kk D 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 January 2023.

How much traffic does HWY So Sta Conn over I 93 Ramps Cc Kk D carry?

About 350 vehicles per day (2000 count), of which roughly 6% are trucks.

How long is HWY So Sta Conn over I 93 Ramps Cc Kk D?

The structure is 2,333 ft (711 m) long with a longest span of 1,627 ft (496 m) and a deck 669 ft wide.

Who owns HWY So Sta Conn over I 93 Ramps Cc Kk D?

It is owned by the Other State Agency.