US Bridges

I 90 WB Ramp Off over RR MBTA

Fair

Middlesex County, Massachusetts · At Int 16 S15 · Structure no. N120684QUDOTNBI

Built
1964
61 years old, rebuilt 1995
Condition
Fair
inspected January 2025
Type
Stringer/Multi-beam or Girder
Steel
Length
56 ft
1 main span
Daily traffic
8,500
2023 count
Owner
State
State Highway Agency

About this bridge

I 90 WB Ramp Off over RR MBTA is a steel stringer/multi-beam or girder carrying I 90 WB Ramp Off over RR MBTA in Middlesex County, Massachusetts. It was built in 1964 and reconstructed in 1995, so it is 61 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 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 8,500 vehicles a day, roughly 5% of them trucks, projected to reach 1,895 by 2031. The structure is 56 ft (17.1 m) long and 42 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesI 90 WB Ramp Off
CrossesRR MBTA
LocationAt Int 16 S15
RouteInterstate 90
CountyMiddlesex County
StateMassachusetts
Coordinates42.34746, -71.23523
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 2025
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 geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating101.5 US tons
Inventory rating60.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length56 ft (17.1 m)
Longest span49 ft (14.9 m)
Deck width42 ft (12.8 m)
Roadway width35 ft (10.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,500 (2023)
Projected traffic1,895 by 2031
Trucks5%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
Detour if closed8.1 mi (13 km)
TollOn a toll road
National Highway SystemNo

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$2.2 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 90 WB Ramp Off over RR MBTA built?

It was built in 1964, making it 61 years old in 2025. It was reconstructed in 1995.

What condition is I 90 WB Ramp Off over RR MBTA 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 January 2025.

How much traffic does I 90 WB Ramp Off over RR MBTA carry?

About 8,500 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is I 90 WB Ramp Off over RR MBTA?

The structure is 56 ft (17.1 m) long with a longest span of 49 ft (14.9 m) and a deck 42 ft wide.

Who owns I 90 WB Ramp Off over RR MBTA?

It is owned by the State Highway Agency.