US Bridges

Nassau Road over RTE 908M

Fair

Nassau County, New York · 4 MI W JCT Ssp + Wsp · Structure no. 000000001059540

Built
1930
95 years old, rebuilt 2017
Condition
Fair
inspected November 2024
Type
Arch - Deck
Concrete
Length
66 ft
1 main span
Daily traffic
25,098
2019 count
Owner
State
State Highway Agency

About this bridge

Nassau Road over RTE 908M is a concrete arch - deck carrying Nassau Road over RTE 908M in Nassau County, New York. It was built in 1930 and reconstructed in 2017, so it is 95 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 25,098 vehicles a day, roughly 3% of them trucks, projected to reach 30,489 by 2041. The structure is 66 ft (20.1 m) long and 80 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesNassau Road
CrossesRTE 908M
Location4 MI W JCT Ssp + Wsp
RouteCounty Highway 0
CountyNassau County
StateNew York
Coordinates40.68668, -73.59425
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.3 US tons
Inventory rating25.4 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadUnknown
Structure length66 ft (20.1 m)
Longest span65 ft (19.8 m)
Deck width80 ft (24.4 m)
Roadway width60 ft (18.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25,098 (2019)
Projected traffic30,489 by 2041
Trucks3%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

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$6.3 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Nassau Road over RTE 908M built?

It was built in 1930, making it 95 years old in 2025. It was reconstructed in 2017.

What condition is Nassau Road over RTE 908M 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 2024.

How much traffic does Nassau Road over RTE 908M carry?

About 25,098 vehicles per day (2019 count), of which roughly 3% are trucks.

How long is Nassau Road over RTE 908M?

The structure is 66 ft (20.1 m) long with a longest span of 65 ft (19.8 m) and a deck 80 ft wide.

Who owns Nassau Road over RTE 908M?

It is owned by the State Highway Agency.