US Bridges

I 93 over HWY West ST

Fair

Middlesex County, Massachusetts · 0.96 KM Nly Rt 128 · Structure no. R030102HLDOTNBI

Built
1959
66 years old, rebuilt 1985
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
158 ft
3 main spans
Daily traffic
158,200
2024 count
Owner
State
State Highway Agency

About this bridge

I 93 over HWY West ST is a prestressed concrete stringer/multi-beam or girder carrying I 93 over HWY West ST in Middlesex County, Massachusetts. It was built in 1959 and reconstructed in 1985, so it is 66 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 158,200 vehicles a day, roughly 10% of them trucks, projected to reach 244,792 by 2031. The structure is 158 ft (48.2 m) long and 155 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesI 93
CrossesHWY West ST
Location0.96 KM Nly Rt 128
RouteInterstate 93
CountyMiddlesex County
StateMassachusetts
Coordinates42.509, -71.12356
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 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 geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.6 US tons
Inventory rating30.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length158 ft (48.2 m)
Longest span68 ft (20.6 m)
Deck width155 ft (47.2 m)
Roadway width140 ft (42.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic158,200 (2024)
Projected traffic244,792 by 2031
Trucks10%
Lanes on structure8
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed8.7 mi (14 km)
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$22.5 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 93 over HWY West ST built?

It was built in 1959, making it 66 years old in 2025. It was reconstructed in 1985.

What condition is I 93 over HWY West 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 May 2024.

How much traffic does I 93 over HWY West ST carry?

About 158,200 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is I 93 over HWY West ST?

The structure is 158 ft (48.2 m) long with a longest span of 68 ft (20.6 m) and a deck 155 ft wide.

Who owns I 93 over HWY West ST?

It is owned by the State Highway Agency.