US Bridges

I 95 NB/ST128 NB over ST 38 Wb/Main ST

Fair

Middlesex County, Massachusetts · Rt 128 at Rt 38 · Structure no. W430312F6DOTNBI

Built
1949
76 years old, rebuilt 1961
Condition
Fair
inspected January 2024
Type
Frame
Concrete
Length
71 ft
1 main span
Daily traffic
80,004
2024 count
Owner
State
State Highway Agency

About this bridge

I 95 NB/ST128 NB over ST 38 Wb/Main ST is a concrete frame carrying I 95 NB/ST128 NB over ST 38 Wb/Main ST in Middlesex County, Massachusetts. It was built in 1949 and reconstructed in 1961, so it is 76 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 6 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 80,004 vehicles a day, roughly 7% of them trucks, projected to reach 259,005 by 2033. The structure is 71 ft (21.6 m) long and 69 ft wide.

Location

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CarriesI 95 NB/ST128 NB
CrossesST 38 Wb/Main ST
LocationRt 128 at Rt 38
RouteInterstate 95
CountyMiddlesex County
StateMassachusetts
Coordinates42.49943, -71.15621
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
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment9: Superior to present desirable criteria
Operating rating92.6 US tons
Inventory rating55.6 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckNot applicable
Main spans1
Design loadH 20
Structure length71 ft (21.6 m)
Longest span64 ft (19.5 m)
Deck width69 ft (20.9 m)
Roadway width60 ft (18.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic80,004 (2024)
Projected traffic259,005 by 2033
Trucks7%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$2 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 95 NB/ST128 NB over ST 38 Wb/Main ST built?

It was built in 1949, making it 76 years old in 2025. It was reconstructed in 1961.

What condition is I 95 NB/ST128 NB over ST 38 Wb/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 January 2024.

How much traffic does I 95 NB/ST128 NB over ST 38 Wb/Main ST carry?

About 80,004 vehicles per day (2024 count), of which roughly 7% are trucks.

How long is I 95 NB/ST128 NB over ST 38 Wb/Main ST?

The structure is 71 ft (21.6 m) long with a longest span of 64 ft (19.5 m) and a deck 69 ft wide.

Who owns I 95 NB/ST128 NB over ST 38 Wb/Main ST?

It is owned by the State Highway Agency.