US Bridges

RTE 25 over Long Island- M.L.

Fair

Suffolk County, New York · .8 MI W JCT I495 & SH25 · Structure no. 000000001060870

Built
1924
101 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
304 ft
5 main spans
Daily traffic
8,700
2018 count
Owner
State
State Highway Agency

About this bridge

RTE 25 over Long Island- M.L. is a steel stringer/multi-beam or girder carrying RTE 25 over Long Island- M.L. in Suffolk County, New York. It was built in 1924, so it is 101 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 8,700 vehicles a day, roughly 5% of them trucks, projected to reach 10,568 by 2041. The structure is 304 ft (92.7 m) long and 50 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesRTE 25
CrossesLong Island- M.L.
Location.8 MI W JCT I495 & SH25
RouteState Highway 25
CountySuffolk County
StateNew York
Coordinates40.91629, -72.70956
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.1 US tons
Inventory rating37 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans5
Design loadH 20
Structure length304 ft (92.7 m)
Longest span60 ft (18.2 m)
Deck width50 ft (15.2 m)
Roadway width47 ft (14.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,700 (2018)
Projected traffic10,568 by 2041
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed3.7 mi (6 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$13 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was RTE 25 over Long Island- M.L. built?

It was built in 1924, making it 101 years old in 2025.

What condition is RTE 25 over Long Island- M.L. 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 2023.

How much traffic does RTE 25 over Long Island- M.L. carry?

About 8,700 vehicles per day (2018 count), of which roughly 5% are trucks.

How long is RTE 25 over Long Island- M.L.?

The structure is 304 ft (92.7 m) long with a longest span of 60 ft (18.2 m) and a deck 50 ft wide.

Who owns RTE 25 over Long Island- M.L.?

It is owned by the State Highway Agency.