US Bridges

HWY West ST over I 93

Fair

Middlesex County, Massachusetts · 0.25 MI S Rt 129 · Structure no. W380302MBDOTNBI

Built
1957
68 years old, rebuilt 1994
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
296 ft
4 main spans
Daily traffic
6,300
2024 count
Owner
State
State Highway Agency

About this bridge

HWY West ST over I 93 is a steel continuous stringer/multi-beam or girder carrying HWY West ST over I 93 in Middlesex County, Massachusetts. It was built in 1957 and reconstructed in 1994, 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 6,300 vehicles a day, roughly 11% of them trucks, projected to reach 8,212 by 2031. The structure is 296 ft (90.2 m) long and 50 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesHWY West ST
CrossesI 93
Location0.25 MI S Rt 129
RouteCity Street 0
CountyMiddlesex County
StateMassachusetts
Coordinates42.53328, -71.13562
Functional classUrban Minor Arterial

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 inspectionJune 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating60.5 US tons
Inventory rating36.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length296 ft (90.2 m)
Longest span110 ft (33.5 m)
Deck width50 ft (15.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deck16 ft (4.9 m)

Traffic and service

Average daily traffic6,300 (2024)
Projected traffic8,212 by 2031
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

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$13.4 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was HWY West ST over I 93 built?

It was built in 1957, making it 68 years old in 2025. It was reconstructed in 1994.

What condition is HWY West ST over I 93 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 2024.

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

About 6,300 vehicles per day (2024 count), of which roughly 11% are trucks.

How long is HWY West ST over I 93?

The structure is 296 ft (90.2 m) long with a longest span of 110 ft (33.5 m) and a deck 50 ft wide.

Who owns HWY West ST over I 93?

It is owned by the State Highway Agency.