US Bridges

I 90 over Other Aqdct at Wllsly ST

Fair

Middlesex County, Massachusetts · 4 KM W. ST 128&I 95 L38 · Structure no. W290414Q2DOTNBI

Built
1957
68 years old
Condition
Fair
inspected April 2024
Type
Culvert
Concrete
Length
60 ft
1 main span
Daily traffic
134,822
2024 count
Owner
State
State Highway Agency

About this bridge

I 90 over Other Aqdct at Wllsly ST is a concrete culvert carrying I 90 over Other Aqdct at Wllsly ST in Middlesex County, Massachusetts. It was built in 1957, 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 134,822 vehicles a day, roughly 7% of them trucks, projected to reach 157,076 by 2031. The structure is 60 ft (18.3 m) long and 133 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI 90
CrossesOther Aqdct at Wllsly ST
Location4 KM W. ST 128&I 95 L38
RouteInterstate 90
CountyMiddlesex County
StateMassachusetts
Coordinates42.33531, -71.30792
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
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79 US tons
Inventory rating47.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length60 ft (18.3 m)
Longest span60 ft (18.3 m)
Deck width133 ft (40.6 m)
Roadway width125 ft (38.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic134,822 (2024)
Projected traffic157,076 by 2031
Trucks7%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesOther
Detour if closed1.2 mi (2 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$6.8 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 90 over Other Aqdct at Wllsly ST built?

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

What condition is I 90 over Other Aqdct at Wllsly 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 2024.

How much traffic does I 90 over Other Aqdct at Wllsly ST carry?

About 134,822 vehicles per day (2024 count), of which roughly 7% are trucks.

How long is I 90 over Other Aqdct at Wllsly ST?

The structure is 60 ft (18.3 m) long with a longest span of 60 ft (18.3 m) and a deck 133 ft wide.

Who owns I 90 over Other Aqdct at Wllsly ST?

It is owned by the State Highway Agency.