US Bridges

RTE 25B over RTE 908G

Fair

Nassau County, New York · RTE 25B+NSP EB · Structure no. 000000001018399

Built
1934
91 years old
Condition
Fair
inspected March 2023
Type
Arch - Deck
Concrete
Length
65 ft
1 main span
Daily traffic
12,715
2020 count
Owner
State
State Highway Agency

About this bridge

RTE 25B over RTE 908G is a concrete arch - deck carrying RTE 25B over RTE 908G in Nassau County, New York. It was built in 1934, so it is 91 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 12,715 vehicles a day, roughly 3% of them trucks, projected to reach 14,670 by 2041. The structure is 65 ft (19.8 m) long and 78 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesRTE 25B
CrossesRTE 908G
LocationRTE 25B+NSP EB
RouteState Highway 25B
CountyNassau County
StateNew York
Coordinates40.76, -73.62378
Functional classUrban Other Principal 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 inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating86 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadH 20
Structure length65 ft (19.8 m)
Longest span60 ft (18.2 m)
Deck width78 ft (23.7 m)
Roadway width56 ft (17.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,715 (2020)
Projected traffic14,670 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 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$6.8 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was RTE 25B over RTE 908G built?

It was built in 1934, making it 91 years old in 2025.

What condition is RTE 25B over RTE 908G 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 March 2023.

How much traffic does RTE 25B over RTE 908G carry?

About 12,715 vehicles per day (2020 count), of which roughly 3% are trucks.

How long is RTE 25B over RTE 908G?

The structure is 65 ft (19.8 m) long with a longest span of 60 ft (18.2 m) and a deck 78 ft wide.

Who owns RTE 25B over RTE 908G?

It is owned by the State Highway Agency.