US Bridges

I 93 over HWY Montvale Ave

Fair

Middlesex County, Massachusetts · 2 MI S Rt 128 · Structure no. W430362J3DOTNBI

Built
1958
67 years old, rebuilt 1972
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
180 ft
2 main spans
Daily traffic
208,231
2017 count
Owner
State
State Highway Agency

About this bridge

I 93 over HWY Montvale Ave is a steel stringer/multi-beam or girder carrying I 93 over HWY Montvale Ave in Middlesex County, Massachusetts. It was built in 1958 and reconstructed in 1972, so it is 67 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 208,231 vehicles a day, roughly 6% of them trucks, projected to reach 268,481 by 2031. The structure is 180 ft (54.9 m) long and 169 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesI 93
CrossesHWY Montvale Ave
Location2 MI S Rt 128
RouteInterstate 93
CountyMiddlesex County
StateMassachusetts
Coordinates42.47999, -71.11493
Functional classUrban Principal Arterial - Other Freeway or Expressway

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 inspectionDecember 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 alignment9: Superior to present desirable criteria
Operating rating56.9 US tons
Inventory rating40.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length180 ft (54.9 m)
Longest span88 ft (26.8 m)
Deck width169 ft (51.6 m)
Roadway width130 ft (39.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic208,231 (2017)
Projected traffic268,481 by 2031
Trucks6%
Lanes on structure8
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 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 statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$27.6 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 93 over HWY Montvale Ave built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 1972.

What condition is I 93 over HWY Montvale Ave 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 December 2024.

How much traffic does I 93 over HWY Montvale Ave carry?

About 208,231 vehicles per day (2017 count), of which roughly 6% are trucks.

How long is I 93 over HWY Montvale Ave?

The structure is 180 ft (54.9 m) long with a longest span of 88 ft (26.8 m) and a deck 169 ft wide.

Who owns I 93 over HWY Montvale Ave?

It is owned by the State Highway Agency.