US Bridges

I 93 Ramp K over Comb I90&I93RMP Cc&amtk

Fair

Suffolk County, Massachusetts · Unit 1 · Structure no. B166629Q4DOTNBI

Built
2005
20 years old
Condition
Fair
inspected May 2023
Type
Segmental Box Girder
Prestressed Concrete Continuous
Length
234 ft
2 main spans
Daily traffic
1,200
2023 count
Owner
State
State Highway Agency

About this bridge

I 93 Ramp K over Comb I90&I93RMP Cc&amtk is a prestressed concrete continuous segmental box girder carrying I 93 Ramp K over Comb I90&I93RMP Cc&amtk in Suffolk County, Massachusetts. It was built in 2005, so it is 20 years old, younger than the Massachusetts average of 63.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 1,200 vehicles a day, roughly 5% of them trucks. The structure is 234 ft (71.2 m) long and 26 ft wide.

CarriesI 93 Ramp K
CrossesComb I90&I93RMP Cc&amtk
LocationUnit 1
RouteInterstate 93
Coordinates42.34591, -71.06019
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating68.5 US tons

Structure

Structure typeSegmental Box Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length234 ft (71.2 m)
Longest span117 ft (35.7 m)
Deck width26 ft (7.9 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deck0 ft (0 m)

Traffic and service

Average daily traffic1,200 (2023)
Projected traffic—
Trucks5%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and railroad
Detour if closed—
TollOn a free road
National Highway SystemNo
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$9.7 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 93 Ramp K over Comb I90&I93RMP Cc&amtk built?

It was built in 2005, making it 20 years old in 2025.

What condition is I 93 Ramp K over Comb I90&I93RMP Cc&amtk in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in May 2023.

How much traffic does I 93 Ramp K over Comb I90&I93RMP Cc&amtk carry?

About 1,200 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is I 93 Ramp K over Comb I90&I93RMP Cc&amtk?

The structure is 234 ft (71.2 m) long with a longest span of 117 ft (35.7 m) and a deck 26 ft wide.

Who owns I 93 Ramp K over Comb I90&I93RMP Cc&amtk?

It is owned by the State Highway Agency.