US Bridges

I 93 SB over Other Relief

Fair

Suffolk County, Massachusetts · Albany ST / Frontage RD · Structure no. B1665491EDOTNBI

Built
1997
28 years old
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
189 ft
3 main spans
Daily traffic
45,270
2021 count
Owner
State
State Highway Agency

About this bridge

I 93 SB over Other Relief is a prestressed concrete continuous stringer/multi-beam or girder carrying I 93 SB over Other Relief in Suffolk County, Massachusetts. It was built in 1997, so it is 28 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 45,270 vehicles a day, roughly 7% of them trucks, projected to reach 118,785 by 2032. The structure is 189 ft (57.5 m) long and 86 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

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CarriesI 93 SB
CrossesOther Relief
LocationAlbany ST / Frontage RD
RouteInterstate 93
CountySuffolk County
StateMassachusetts
Coordinates42.34023, -71.06374
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 inspectionFebruary 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 rating67.6 US tons
Inventory rating40.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3 (+1 approach)
Design loadHS 25 or greater
Structure length189 ft (57.5 m)
Longest span60 ft (18.4 m)
Deck width86 ft (26.3 m)
Roadway width82 ft (24.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic45,270 (2021)
Projected traffic118,785 by 2032
Trucks7%
Lanes on structure7
Traffic directionOne-way traffic
CarriesHighway
CrossesOther
Detour if closed2.5 mi (4 km)
TollOn a free road
National Highway SystemYes

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$11.3 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 93 SB over Other Relief built?

It was built in 1997, making it 28 years old in 2025.

What condition is I 93 SB 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 February 2023.

How much traffic does I 93 SB over Other Relief carry?

About 45,270 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is I 93 SB over Other Relief?

The structure is 189 ft (57.5 m) long with a longest span of 60 ft (18.4 m) and a deck 86 ft wide.

Who owns I 93 SB over Other Relief?

It is owned by the State Highway Agency.