US Bridges

I 93 over HWY Fallon Road

Fair

Middlesex County, Massachusetts · 1.4 KM Sly Montvale Ave · Structure no. S270072HNDOTNBI

Built
1958
67 years old, rebuilt 1972
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
125 ft
3 main spans
Daily traffic
176,618
2024 count
Owner
State
State Highway Agency

About this bridge

I 93 over HWY Fallon Road is a steel stringer/multi-beam or girder carrying I 93 over HWY Fallon Road 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 176,618 vehicles a day, roughly 8% of them trucks, projected to reach 285,222 by 2031. The structure is 125 ft (38 m) long and 166 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesI 93
CrossesHWY Fallon Road
Location1.4 KM Sly Montvale Ave
RouteInterstate 93
CountyMiddlesex County
StateMassachusetts
Coordinates42.46935, -71.10737
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.
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 inspectionOctober 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 alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating66.9 US tons
Inventory rating40.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length125 ft (38 m)
Longest span57 ft (17.4 m)
Deck width166 ft (50.6 m)
Roadway width150 ft (45.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic176,618 (2024)
Projected traffic285,222 by 2031
Trucks8%
Lanes on structure8
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 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$19.2 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 93 over HWY Fallon Road 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 Fallon Road 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 October 2024.

How much traffic does I 93 over HWY Fallon Road carry?

About 176,618 vehicles per day (2024 count), of which roughly 8% are trucks.

How long is I 93 over HWY Fallon Road?

The structure is 125 ft (38 m) long with a longest span of 57 ft (17.4 m) and a deck 166 ft wide.

Who owns I 93 over HWY Fallon Road?

It is owned by the State Highway Agency.