US Bridges

I 90 EB over ST 27 N Main ST

Fair

Middlesex County, Massachusetts · 117.9 Mm Rt. 90 · Structure no. N030374PUDOTNBI

Built
1957
68 years old, rebuilt 1989
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
146 ft
3 main spans
Daily traffic
56,977
2021 count
Owner
State
State Highway Agency

About this bridge

I 90 EB over ST 27 N Main ST is a steel stringer/multi-beam or girder carrying I 90 EB over ST 27 N Main ST in Middlesex County, Massachusetts. It was built in 1957 and reconstructed in 1989, so it is 68 years old, older 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 5 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 56,977 vehicles a day, roughly 7% of them trucks, projected to reach 105,813 by 2032. The structure is 146 ft (44.5 m) long and 65 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesI 90 EB
CrossesST 27 N Main ST
Location117.9 Mm Rt. 90
RouteInterstate 90
CountyMiddlesex County
StateMassachusetts
Coordinates42.31436, -71.36061
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.2 US tons
Inventory rating36.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length146 ft (44.5 m)
Longest span66 ft (20 m)
Deck width65 ft (19.8 m)
Roadway width62 ft (18.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic56,977 (2021)
Projected traffic105,813 by 2032
Trucks7%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 km)
TollOn a toll road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$8.7 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 90 EB over ST 27 N Main ST built?

It was built in 1957, making it 68 years old in 2025. It was reconstructed in 1989.

What condition is I 90 EB over ST 27 N Main ST 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 April 2023.

How much traffic does I 90 EB over ST 27 N Main ST carry?

About 56,977 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is I 90 EB over ST 27 N Main ST?

The structure is 146 ft (44.5 m) long with a longest span of 66 ft (20 m) and a deck 65 ft wide.

Who owns I 90 EB over ST 27 N Main ST?

It is owned by the State Highway Agency.