US Bridges

RTE I495 over William Floyd Pky Willi

Fair

Suffolk County, New York · 5.7 MI E Rts 112+495 · Structure no. 000000001064191

Built
1970
55 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
204 ft
4 main spans
Daily traffic
39,829
2009 count
Owner
State
State Highway Agency

About this bridge

RTE I495 over William Floyd Pky Willi is a steel stringer/multi-beam or girder carrying RTE I495 over William Floyd Pky Willi in Suffolk County, New York. It was built in 1970, so it is 55 years old, older 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 39,829 vehicles a day, roughly 13% of them trucks. The structure is 204 ft (62.2 m) long and 99 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesRTE I495
CrossesWilliam Floyd Pky Willi
Location5.7 MI E Rts 112+495
RouteInterstate 495
CountySuffolk County
StateNew York
Coordinates40.84405, -72.89076
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
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 rating71 US tons
Inventory rating42 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length204 ft (62.2 m)
Longest span63 ft (19.2 m)
Deck width99 ft (30.1 m)
Roadway width92 ft (28.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic39,829 (2009)
Projected traffic—
Trucks13%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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$14 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was RTE I495 over William Floyd Pky Willi built?

It was built in 1970, making it 55 years old in 2025.

What condition is RTE I495 over William Floyd Pky Willi 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 November 2023.

How much traffic does RTE I495 over William Floyd Pky Willi carry?

About 39,829 vehicles per day (2009 count), of which roughly 13% are trucks.

How long is RTE I495 over William Floyd Pky Willi?

The structure is 204 ft (62.2 m) long with a longest span of 63 ft (19.2 m) and a deck 99 ft wide.

Who owns RTE I495 over William Floyd Pky Willi?

It is owned by the State Highway Agency.