US Bridges

I 90 Ex 106 I 11A over I 90

Fair

Middlesex County, Massachusetts · Mm 106.2 · Structure no. H230134NVDOTNBI

Built
1968
57 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
275 ft
2 main spans
Daily traffic
25,892
2022 count
Owner
State
State Highway Agency

About this bridge

I 90 Ex 106 I 11A over I 90 is a steel stringer/multi-beam or girder carrying I 90 Ex 106 I 11A over I 90 in Middlesex County, Massachusetts. It was built in 1968, so it is 57 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 25,892 vehicles a day, roughly 6% of them trucks, projected to reach 15,793 by 2033. The structure is 275 ft (83.9 m) long and 52 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesI 90 Ex 106 I 11A
CrossesI 90
LocationMm 106.2
RouteInterstate 90
CountyMiddlesex County
StateMassachusetts
Coordinates42.26453, -71.56952
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2024
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 geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.6 US tons
Inventory rating41 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length275 ft (83.9 m)
Longest span90 ft (27.4 m)
Deck width52 ft (15.9 m)
Roadway width46 ft (14 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25,892 (2022)
Projected traffic15,793 by 2033
Trucks6%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 km)
TollOn a toll road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate 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$13 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 90 Ex 106 I 11A over I 90 built?

It was built in 1968, making it 57 years old in 2025.

What condition is I 90 Ex 106 I 11A over I 90 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 February 2024.

How much traffic does I 90 Ex 106 I 11A over I 90 carry?

About 25,892 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is I 90 Ex 106 I 11A over I 90?

The structure is 275 ft (83.9 m) long with a longest span of 90 ft (27.4 m) and a deck 52 ft wide.

Who owns I 90 Ex 106 I 11A over I 90?

It is owned by the State Highway Agency.