US Bridges

RTE 908K over Long Island-Main

Fair

Suffolk County, New York · 4.9 MI S JCT SH454 & SH25 · Structure no. 000000001058949

Built
1952
73 years old, rebuilt 2010
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
57 ft
1 main span
Daily traffic
89,019
2019 count
Owner
State
State Highway Agency

About this bridge

RTE 908K over Long Island-Main is a steel stringer/multi-beam or girder carrying RTE 908K over Long Island-Main in Suffolk County, New York. It was built in 1952 and reconstructed in 2010, so it is 73 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 89,019 vehicles a day, roughly 1% of them trucks, projected to reach 105,888 by 2041. The structure is 57 ft (17.4 m) long and 68 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

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CarriesRTE 908K
CrossesLong Island-Main
Location4.9 MI S JCT SH454 & SH25
RouteCity Street 908K
CountySuffolk County
StateNew York
Coordinates40.77259, -73.27994
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating89 US tons
Inventory rating53 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length57 ft (17.4 m)
Longest span53 ft (16.1 m)
Deck width68 ft (20.8 m)
Roadway width52 ft (16 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic89,019 (2019)
Projected traffic105,888 by 2041
Trucks1%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed2.5 mi (4 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byRailroad
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$7.3 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was RTE 908K over Long Island-Main built?

It was built in 1952, making it 73 years old in 2025. It was reconstructed in 2010.

What condition is RTE 908K over Long Island-Main 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 August 2024.

How much traffic does RTE 908K over Long Island-Main carry?

About 89,019 vehicles per day (2019 count), of which roughly 1% are trucks.

How long is RTE 908K over Long Island-Main?

The structure is 57 ft (17.4 m) long with a longest span of 53 ft (16.1 m) and a deck 68 ft wide.

Who owns RTE 908K over Long Island-Main?

It is owned by the State Highway Agency and maintained by the Railroad.