US Bridges

I 90 WB over ST126 Concord ST

Fair

Middlesex County, Massachusetts · Mm 115.8 W of Ex 117 · Structure no. F070584P6DOTNBI

Built
1957
68 years old, rebuilt 1989
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
125 ft
3 main spans
Daily traffic
52,861
2022 count
Owner
State
State Highway Agency

About this bridge

I 90 WB over ST126 Concord ST is a steel stringer/multi-beam or girder carrying I 90 WB over ST126 Concord 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 52,861 vehicles a day, roughly 8% of them trucks, projected to reach 86,862 by 2032. The structure is 125 ft (38.1 m) long and 64 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI 90 WB
CrossesST126 Concord ST
LocationMm 115.8 W of Ex 117
RouteInterstate 90
CountyMiddlesex County
StateMassachusetts
Coordinates42.31557, -71.40088
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionJune 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 rating60.5 US tons
Inventory rating36.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length125 ft (38.1 m)
Longest span62 ft (19 m)
Deck width64 ft (19.5 m)
Roadway width61 ft (18.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic52,861 (2022)
Projected traffic86,862 by 2032
Trucks8%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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$7.4 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 90 WB over ST126 Concord ST built?

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

What condition is I 90 WB over ST126 Concord 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 June 2023.

How much traffic does I 90 WB over ST126 Concord ST carry?

About 52,861 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is I 90 WB over ST126 Concord ST?

The structure is 125 ft (38.1 m) long with a longest span of 62 ft (19 m) and a deck 64 ft wide.

Who owns I 90 WB over ST126 Concord ST?

It is owned by the State Highway Agency.