US Bridges

RTE 135 over Demott Ave

Fair

Nassau County, New York · .7 MI S JCT Rts 105+135 · Structure no. 000000001053249

Built
1970
55 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
63 ft
1 main span
Daily traffic
50,146
2019 count
Owner
State
State Highway Agency

About this bridge

RTE 135 over Demott Ave is a steel stringer/multi-beam or girder carrying RTE 135 over Demott Ave in Nassau County, New York. It was built in 1970, so it is 55 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 50,146 vehicles a day, roughly 6% of them trucks, projected to reach 59,648 by 2041. The structure is 63 ft (19.2 m) long and 105 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesRTE 135
CrossesDemott Ave
Location.7 MI S JCT Rts 105+135
RouteState Highway 135
CountyNassau County
StateNew York
Coordinates40.68047, -73.49523
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.
Substructure7 GoodSome minor problems.
Last inspectionJune 2024
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 alignment7: Better than present minimum criteria
Operating rating91.1 US tons
Inventory rating54 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length63 ft (19.2 m)
Longest span58 ft (17.6 m)
Deck width105 ft (32.1 m)
Roadway width97 ft (29.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50,146 (2019)
Projected traffic59,648 by 2041
Trucks6%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
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$9.4 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was RTE 135 over Demott Ave built?

It was built in 1970, making it 55 years old in 2025.

What condition is RTE 135 over Demott Ave 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 June 2024.

How much traffic does RTE 135 over Demott Ave carry?

About 50,146 vehicles per day (2019 count), of which roughly 6% are trucks.

How long is RTE 135 over Demott Ave?

The structure is 63 ft (19.2 m) long with a longest span of 58 ft (17.6 m) and a deck 105 ft wide.

Who owns RTE 135 over Demott Ave?

It is owned by the State Highway Agency.