US Bridges

I 93 NB over Other Relief

Fair

Suffolk County, Massachusetts · 0.0 M S I-90 WB B16702 U2 · Structure no. B167028W4DOTNBI

Built
2002
23 years old
Condition
Fair
inspected March 2023
Type
Slab
Prestressed Concrete
Length
107 ft
10 main spans
Daily traffic
77,653
2021 count
Owner
State
State Highway Agency

About this bridge

I 93 NB over Other Relief is a prestressed concrete slab carrying I 93 NB over Other Relief in Suffolk County, Massachusetts. It was built in 2002, so it is 23 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 77,653 vehicles a day, roughly 7% of them trucks, projected to reach 136,262 by 2032. The structure is 107 ft (32.5 m) long and 60 ft wide.

Location

Open in Google Maps
CarriesI 93 NB
CrossesOther Relief
Location0.0 M S I-90 WB B16702 U2
RouteInterstate 93
CountySuffolk County
StateMassachusetts
Coordinates42.3474, -71.05837
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 inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating76.4 US tons
Inventory rating45.7 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans10
Design loadHS 25 or greater
Structure length107 ft (32.5 m)
Longest span12 ft (3.7 m)
Deck width60 ft (18.2 m)
Roadway width56 ft (17 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic77,653 (2021)
Projected traffic136,262 by 2032
Trucks7%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesOther
Detour if closed—
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$1.1 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 93 NB over Other Relief built?

It was built in 2002, making it 23 years old in 2025.

What condition is I 93 NB 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 March 2023.

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

About 77,653 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is I 93 NB over Other Relief?

The structure is 107 ft (32.5 m) long with a longest span of 12 ft (3.7 m) and a deck 60 ft wide.

Who owns I 93 NB over Other Relief?

It is owned by the State Highway Agency.