US Bridges

I 90 EB & RP1ANB over Comb ST 1A NB & Blue L

Good

Suffolk County, Massachusetts · Segment 2 · Structure no. B16586588MPANBI

Built
2002
23 years old
Condition
Good
inspected March 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
437 ft
3 main spans
Daily traffic
—
Owner
State
State Highway Agency

About this bridge

I 90 EB & RP1ANB over Comb ST 1A NB & Blue L is a prestressed concrete continuous box beam or girders - single or spread carrying I 90 EB & RP1ANB over Comb ST 1A NB & Blue L 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 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.

No traffic count is recorded. The structure is 437 ft (133.2 m) long and 50 ft wide.

CarriesI 90 EB & RP1ANB
CrossesComb ST 1A NB & Blue L
LocationSegment 2
RouteInterstate 90
Coordinates42.37574, -71.02911
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 inspectionMarch 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 rating65.4 US tons
Inventory rating46.6 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckOther
Main spans3
Design loadHS 20
Structure length437 ft (133.2 m)
Longest span159 ft (48.5 m)
Deck width50 ft (15.2 m)
Roadway width46 ft (14 m)
Vertical clearance over deck0 ft (0 m)

Traffic and service

Average daily traffic—
Projected traffic—
Trucks0%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and railroad
Detour if closed—
TollOn a toll road
National Highway SystemNo

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$22.7 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 90 EB & RP1ANB over Comb ST 1A NB & Blue L built?

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

What condition is I 90 EB & RP1ANB over Comb ST 1A NB & Blue L 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 March 2023.

How much traffic does I 90 EB & RP1ANB over Comb ST 1A NB & Blue L carry?

No traffic count is recorded for this structure.

How long is I 90 EB & RP1ANB over Comb ST 1A NB & Blue L?

The structure is 437 ft (133.2 m) long with a longest span of 159 ft (48.5 m) and a deck 50 ft wide.

Who owns I 90 EB & RP1ANB over Comb ST 1A NB & Blue L?

It is owned by the State Highway Agency.