US Bridges

RTE 908J over State Boat Channel 908J

Fair

Suffolk County, New York · At Fire Island Inlet · Structure no. 000000001058792

Built
1967
58 years old, rebuilt 1993
Condition
Fair
inspected October 2024
Type
Movable - Bascule
Steel
Length
812 ft
1 main span
Daily traffic
8,443
2021 count
Owner
State
State Highway Agency

About this bridge

RTE 908J over State Boat Channel 908J is a steel movable - bascule carrying RTE 908J over State Boat Channel 908J in Suffolk County, New York. It was built in 1967 and reconstructed in 1993, so it is 58 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 8,443 vehicles a day, roughly 2% of them trucks, projected to reach 10,043 by 2041. The structure is 812 ft (247.5 m) long and 45 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesRTE 908J
CrossesState Boat Channel 908J
LocationAt Fire Island Inlet
RouteState Highway 908J
CountySuffolk County
StateNew York
Coordinates40.64254, -73.26331
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating73 US tons
Inventory rating53 US tons

Structure

Structure typeMovable - Bascule
MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+13 approach)
Design loadHS 20
Structure length812 ft (247.5 m)
Longest span150 ft (45.7 m)
Deck width45 ft (13.7 m)
Roadway width36 ft (11 m)
Vertical clearance over deck107 ft (32.7 m)

Traffic and service

Average daily traffic8,443 (2021)
Projected traffic10,043 by 2041
Trucks2%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesHighway and waterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes

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$58.2 million (2024 estimate)
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was RTE 908J over State Boat Channel 908J built?

It was built in 1967, making it 58 years old in 2025. It was reconstructed in 1993.

What condition is RTE 908J over State Boat Channel 908J 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 October 2024.

How much traffic does RTE 908J over State Boat Channel 908J carry?

About 8,443 vehicles per day (2021 count), of which roughly 2% are trucks.

How long is RTE 908J over State Boat Channel 908J?

The structure is 812 ft (247.5 m) long with a longest span of 150 ft (45.7 m) and a deck 45 ft wide.

Who owns RTE 908J over State Boat Channel 908J?

It is owned by the State Highway Agency.