US Bridges

US 1 Ramp Ct over Comb I93 SB &rmps& MBTA

Fair

Suffolk County, Massachusetts · I93/US1 Interchange · Structure no. B166108YFDOTNBI

Built
2001
24 years old
Condition
Fair
inspected September 2022
Type
Segmental Box Girder
Prestressed Concrete Continuous
Length
688 ft
5 main spans
Daily traffic
26,663
2021 count
Owner
State
State Highway Agency

About this bridge

US 1 Ramp Ct over Comb I93 SB &rmps& MBTA is a prestressed concrete continuous segmental box girder carrying US 1 Ramp Ct over Comb I93 SB &rmps& MBTA in Suffolk County, Massachusetts. It was built in 2001, so it is 24 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 26,663 vehicles a day, roughly 8% of them trucks, projected to reach 32,534 by 2031. The structure is 688 ft (209.8 m) long and 40 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesUS 1 Ramp Ct
CrossesComb I93 SB &rmps& MBTA
LocationI93/US1 Interchange
RouteInterstate 93
CountySuffolk County
StateMassachusetts
Coordinates42.37221, -71.06947
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating95.2 US tons
Inventory rating56.8 US tons

Structure

Structure typeSegmental Box Girder
MaterialPrestressed Concrete Continuous
DeckOther
Main spans5
Design loadHS 25 or greater
Structure length688 ft (209.8 m)
Longest span196 ft (59.7 m)
Deck width40 ft (12.1 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic26,663 (2021)
Projected traffic32,534 by 2031
Trucks8%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and railroad
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$640,000 (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 1 Ramp Ct over Comb I93 SB &rmps& MBTA built?

It was built in 2001, making it 24 years old in 2025.

What condition is US 1 Ramp Ct over Comb I93 SB &rmps& MBTA 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 September 2022.

How much traffic does US 1 Ramp Ct over Comb I93 SB &rmps& MBTA carry?

About 26,663 vehicles per day (2021 count), of which roughly 8% are trucks.

How long is US 1 Ramp Ct over Comb I93 SB &rmps& MBTA?

The structure is 688 ft (209.8 m) long with a longest span of 196 ft (59.7 m) and a deck 40 ft wide.

Who owns US 1 Ramp Ct over Comb I93 SB &rmps& MBTA?

It is owned by the State Highway Agency.