US Bridges

RTE I495 over Liewb Conn to Nsp

Fair

Nassau County, New York · .5 MI E RTE 495+RTE 106 · Structure no. 000000001049179

Built
1961
64 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
75 ft
1 main span
Daily traffic
141,478
2020 count
Owner
State
State Highway Agency

About this bridge

RTE I495 over Liewb Conn to Nsp is a steel stringer/multi-beam or girder carrying RTE I495 over Liewb Conn to Nsp in Nassau County, New York. It was built in 1961, so it is 64 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 141,478 vehicles a day, roughly 14% of them trucks, projected to reach 148,551 by 2041. The structure is 75 ft (22.9 m) long and 149 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesRTE I495
CrossesLiewb Conn to Nsp
Location.5 MI E RTE 495+RTE 106
RouteInterstate 495
CountyNassau County
StateNew York
Coordinates40.78794, -73.52476
Functional classUrban Principal Arterial - Interstate

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating59 US tons
Inventory rating33 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length75 ft (22.9 m)
Longest span74 ft (22.5 m)
Deck width149 ft (45.5 m)
Roadway width143 ft (43.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic141,478 (2020)
Projected traffic148,551 by 2041
Trucks14%
Lanes on structure10
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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$19.1 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was RTE I495 over Liewb Conn to Nsp built?

It was built in 1961, making it 64 years old in 2025.

What condition is RTE I495 over Liewb Conn to Nsp 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 September 2024.

How much traffic does RTE I495 over Liewb Conn to Nsp carry?

About 141,478 vehicles per day (2020 count), of which roughly 14% are trucks.

How long is RTE I495 over Liewb Conn to Nsp?

The structure is 75 ft (22.9 m) long with a longest span of 74 ft (22.5 m) and a deck 149 ft wide.

Who owns RTE I495 over Liewb Conn to Nsp?

It is owned by the State Highway Agency.