US Bridges

I 93 NB Ramp C-L over Other Relief

Fair

Suffolk County, Massachusetts · Ramp N. of Gilmore Bridge · Structure no. B166029DLDOTNBI

Built
1999
26 years old
Condition
Fair
inspected August 2023
Type
Box Beam or Girders - Multiple
Steel Continuous
Length
700 ft
5 main spans
Daily traffic
17,800
2022 count
Owner
State
State Highway Agency

About this bridge

I 93 NB Ramp C-L over Other Relief is a steel continuous box beam or girders - multiple carrying I 93 NB Ramp C-L over Other Relief in Suffolk County, Massachusetts. It was built in 1999, so it is 26 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 17,800 vehicles a day, roughly 5% of them trucks. The structure is 700 ft (213.5 m) long and 40 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

Open in Google Maps
CarriesI 93 NB Ramp C-L
CrossesOther Relief
LocationRamp N. of Gilmore Bridge
RouteInterstate 93
CountySuffolk County
StateMassachusetts
Coordinates42.38038, -71.07655
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating91.8 US tons
Inventory rating55.1 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 25 or greater
Structure length700 ft (213.5 m)
Longest span154 ft (46.9 m)
Deck width40 ft (12.2 m)
Roadway width36 ft (11 m)
Vertical clearance over deck16 ft (4.9 m)

Traffic and service

Average daily traffic17,800 (2022)
Projected traffic—
Trucks5%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
Detour if closed2.5 mi (4 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$502,000 (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 93 NB Ramp C-L over Other Relief built?

It was built in 1999, making it 26 years old in 2025.

What condition is I 93 NB Ramp C-L over Other Relief 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 August 2023.

How much traffic does I 93 NB Ramp C-L over Other Relief carry?

About 17,800 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is I 93 NB Ramp C-L over Other Relief?

The structure is 700 ft (213.5 m) long with a longest span of 154 ft (46.9 m) and a deck 40 ft wide.

Who owns I 93 NB Ramp C-L over Other Relief?

It is owned by the State Highway Agency.