US Bridges

I 90 WB & RP1ASB over Other Relief

Good

Suffolk County, Massachusetts · Segment 3 · Structure no. B16588585DOTNBI

Built
1999
26 years old
Condition
Good
inspected May 2023
Type
Segmental Box Girder
Prestressed Concrete Continuous
Length
150 ft
1 main span
Daily traffic
60,129
2023 count
Owner
State
State Highway Agency

About this bridge

I 90 WB & RP1ASB over Other Relief is a prestressed concrete continuous segmental box girder carrying I 90 WB & RP1ASB 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 60,129 vehicles a day, roughly 8% of them trucks, projected to reach 17,576 by 2032. The structure is 150 ft (45.6 m) long and 58 ft wide.

Location

Open in Google Maps
CarriesI 90 WB & RP1ASB
CrossesOther Relief
LocationSegment 3
RouteInterstate 90
CountySuffolk County
StateMassachusetts
Coordinates42.37601, -71.02916
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating91.3 US tons
Inventory rating54.6 US tons

Structure

Structure typeSegmental Box Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length150 ft (45.6 m)
Longest span150 ft (45.6 m)
Deck width58 ft (17.7 m)
Roadway width54 ft (16.4 m)
Vertical clearance over deck0 ft (0 m)

Traffic and service

Average daily traffic60,129 (2023)
Projected traffic17,576 by 2032
Trucks8%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesOther
Detour if closed—
TollOn a toll road
National Highway SystemYes

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$17 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 90 WB & RP1ASB over Other Relief built?

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

What condition is I 90 WB & RP1ASB over Other Relief in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2023.

How much traffic does I 90 WB & RP1ASB over Other Relief carry?

About 60,129 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is I 90 WB & RP1ASB over Other Relief?

The structure is 150 ft (45.6 m) long with a longest span of 150 ft (45.6 m) and a deck 58 ft wide.

Who owns I 90 WB & RP1ASB over Other Relief?

It is owned by the State Highway Agency.