US Bridges

I 495 NB over ST 2

Good

Middlesex County, Massachusetts · 2 Mi.Nth.Of ST.111 · Structure no. L13022BAXDOTNBI

Built
2015
10 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
158 ft
2 main spans
Daily traffic
59,444
2024 count
Owner
State
State Highway Agency

About this bridge

I 495 NB over ST 2 is a steel continuous stringer/multi-beam or girder carrying I 495 NB over ST 2 in Middlesex County, Massachusetts. It was built in 2015, so it is 10 years old, younger than the Massachusetts average of 63.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 59,444 vehicles a day, roughly 7% of them trucks. The structure is 158 ft (48.1 m) long and 56 ft wide.

CarriesI 495 NB
CrossesST 2
Location2 Mi.Nth.Of ST.111
RouteInterstate 495
Coordinates42.52083, -71.50814
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating78.6 US tons
Inventory rating60.7 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length158 ft (48.1 m)
Longest span79 ft (24 m)
Deck width56 ft (17 m)
Roadway width52 ft (15.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic59,444 (2024)
Projected traffic—
Trucks7%
Lanes on structure3
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 statusHistorical significance not determinable at this time
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$2.9 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 495 NB over ST 2 built?

It was built in 2015, making it 10 years old in 2025.

What condition is I 495 NB over ST 2 in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2024.

How much traffic does I 495 NB over ST 2 carry?

About 59,444 vehicles per day (2024 count), of which roughly 7% are trucks.

How long is I 495 NB over ST 2?

The structure is 158 ft (48.1 m) long with a longest span of 79 ft (24 m) and a deck 56 ft wide.

Who owns I 495 NB over ST 2?

It is owned by the State Highway Agency.