US Bridges

Carmans Road over RTE 908M

Fair

Nassau County, New York · 1.5 MI E JCT Rts 107+SSP · Structure no. 000000001059730

Built
1933
92 years old
Condition
Fair
inspected March 2024
Type
Arch - Deck
Concrete
Length
66 ft
1 main span
Daily traffic
11,656
2020 count
Owner
State
State Highway Agency

About this bridge

Carmans Road over RTE 908M is a concrete arch - deck carrying Carmans Road over RTE 908M in Nassau County, New York. It was built in 1933, so it is 92 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 11,656 vehicles a day, roughly 2% of them trucks, projected to reach 14,159 by 2041. The structure is 66 ft (20.1 m) long and 53 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesCarmans Road
CrossesRTE 908M
Location1.5 MI E JCT Rts 107+SSP
CountyNassau County
StateNew York
Coordinates40.70579, -73.43326
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 inspectionMarch 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 rating61.6 US tons
Inventory rating22.4 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadH 20
Structure length66 ft (20.1 m)
Longest span60 ft (18.2 m)
Deck width53 ft (16.2 m)
Roadway width41 ft (12.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,656 (2020)
Projected traffic14,159 by 2041
Trucks2%
Lanes on structure2
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$4.4 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Carmans Road over RTE 908M built?

It was built in 1933, making it 92 years old in 2025.

What condition is Carmans 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 March 2024.

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

About 11,656 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Carmans Road over RTE 908M?

The structure is 66 ft (20.1 m) long with a longest span of 60 ft (18.2 m) and a deck 53 ft wide.

Who owns Carmans Road over RTE 908M?

It is owned by the State Highway Agency.