US Bridges

RTE 908M over Central Avenue

Fair

Nassau County, New York · .6 MI E NYC Line & Ssp · Structure no. 000000001059332

Built
1934
91 years old
Condition
Fair
inspected October 2024
Type
Frame
Concrete
Length
61 ft
1 main span
Daily traffic
91,558
2019 count
Owner
State
State Highway Agency

About this bridge

RTE 908M over Central Avenue is a concrete frame carrying RTE 908M over Central Avenue 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 91,558 vehicles a day, roughly 2% of them trucks, projected to reach 108,907 by 2041. The structure is 61 ft (18.6 m) long and 56 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesRTE 908M
CrossesCentral Avenue
Location.6 MI E NYC Line & Ssp
RouteState Highway 908M
Coordinates40.68668, -73.7153
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.
Last inspectionOctober 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 geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment7: Better than present minimum criteria
Operating rating61.8 US tons
Inventory rating24.7 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckNot applicable
Main spans1
Design loadH 20
Structure length61 ft (18.6 m)
Longest span58 ft (17.6 m)
Deck width56 ft (17.1 m)
Roadway width50 ft (15.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic91,558 (2019)
Projected traffic108,907 by 2041
Trucks2%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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$4.6 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was RTE 908M over Central Avenue built?

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

What condition is RTE 908M over Central Avenue 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 908M over Central Avenue carry?

About 91,558 vehicles per day (2019 count), of which roughly 2% are trucks.

How long is RTE 908M over Central Avenue?

The structure is 61 ft (18.6 m) long with a longest span of 58 ft (17.6 m) and a deck 56 ft wide.

Who owns RTE 908M over Central Avenue?

It is owned by the State Highway Agency.