US Bridges

RTE I495 over River RD

Fair

Suffolk County, New York · .4 MI N I495 + SH 24 · Structure no. 000000001056191

Built
1972
53 years old, rebuilt 2020
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
147 ft
1 main span
Daily traffic
10,907
2018 count
Owner
State
State Highway Agency

About this bridge

RTE I495 over River RD is a steel stringer/multi-beam or girder carrying RTE I495 over River RD in Suffolk County, New York. It was built in 1972 and reconstructed in 2020, so it is 53 years old, younger than the New York average of 53 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 10,907 vehicles a day, roughly 5% of them trucks, projected to reach 11,452 by 2041. The structure is 147 ft (44.8 m) long and 56 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesRTE I495
CrossesRiver RD
Location.4 MI N I495 + SH 24
RouteInterstate 495
Coordinates40.90917, -72.73707
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
Deck9 ExcellentNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.7 US tons
Inventory rating46.7 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length147 ft (44.8 m)
Longest span140 ft (42.6 m)
Deck width56 ft (17.1 m)
Roadway width53 ft (16.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,907 (2018)
Projected traffic11,452 by 2041
Trucks5%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 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 with deck rehabilitation or replacement
Estimated improvement cost$8.6 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was RTE I495 over River RD built?

It was built in 1972, making it 53 years old in 2025. It was reconstructed in 2020.

What condition is RTE I495 over River RD 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 September 2024.

How much traffic does RTE I495 over River RD carry?

About 10,907 vehicles per day (2018 count), of which roughly 5% are trucks.

How long is RTE I495 over River RD?

The structure is 147 ft (44.8 m) long with a longest span of 140 ft (42.6 m) and a deck 56 ft wide.

Who owns RTE I495 over River RD?

It is owned by the State Highway Agency.