US Bridges

I 495 NB over I 95

Fair

Essex County, Massachusetts · At End of I495 · Structure no. S020092XLDOTNBI

Built
1969
56 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
336 ft
4 main spans
Daily traffic
23,253
2024 count
Owner
State
State Highway Agency

About this bridge

I 495 NB over I 95 is a steel stringer/multi-beam or girder carrying I 495 NB over I 95 in Essex County, Massachusetts. It was built in 1969, so it is 56 years old, younger 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 23,253 vehicles a day, roughly 14% of them trucks, projected to reach 59,066 by 2033. The structure is 336 ft (102.4 m) long and 44 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI 495 NB
CrossesI 95
LocationAt End of I495
RouteInterstate 495
CountyEssex County
StateMassachusetts
Coordinates42.85651, -70.89659
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 inspectionFebruary 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 geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.6 US tons
Inventory rating37.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length336 ft (102.4 m)
Longest span122 ft (37.2 m)
Deck width44 ft (13.4 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23,253 (2024)
Projected traffic59,066 by 2033
Trucks14%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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$13.4 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 495 NB over I 95 built?

It was built in 1969, making it 56 years old in 2025.

What condition is I 495 NB over I 95 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 February 2024.

How much traffic does I 495 NB over I 95 carry?

About 23,253 vehicles per day (2024 count), of which roughly 14% are trucks.

How long is I 495 NB over I 95?

The structure is 336 ft (102.4 m) long with a longest span of 122 ft (37.2 m) and a deck 44 ft wide.

Who owns I 495 NB over I 95?

It is owned by the State Highway Agency.