US Bridges

I 495 SB over Water Snake River

Fair

Bristol County, Massachusetts · 1.7 MI E of Norton Tl · Structure no. T010593RVDOTNBI

Built
1980
45 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
160 ft
1 main span
Daily traffic
38,969
2022 count
Owner
State
State Highway Agency

About this bridge

I 495 SB over Water Snake River is a steel stringer/multi-beam or girder carrying I 495 SB over Water Snake River in Bristol County, Massachusetts. It was built in 1980, so it is 45 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 6 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 38,969 vehicles a day, roughly 4% of them trucks, projected to reach 63,962 by 2031. The structure is 160 ft (48.8 m) long and 56 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesI 495 SB
CrossesWater Snake River
Location1.7 MI E of Norton Tl
RouteInterstate 495
CountyBristol County
StateMassachusetts
Coordinates41.96078, -71.09969
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating83.4 US tons
Inventory rating50 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length160 ft (48.8 m)
Longest span155 ft (47.2 m)
Deck width56 ft (17.2 m)
Roadway width53 ft (16.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic38,969 (2022)
Projected traffic63,962 by 2031
Trucks4%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$2.4 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was I 495 SB over Water Snake River built?

It was built in 1980, making it 45 years old in 2025.

What condition is I 495 SB over Water Snake River 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 April 2024.

How much traffic does I 495 SB over Water Snake River carry?

About 38,969 vehicles per day (2022 count), of which roughly 4% are trucks.

How long is I 495 SB over Water Snake River?

The structure is 160 ft (48.8 m) long with a longest span of 155 ft (47.2 m) and a deck 56 ft wide.

Who owns I 495 SB over Water Snake River?

It is owned by the State Highway Agency.