US Bridges

Old Bridge Road over LIRR Pt Jeff Brch

Fair

Suffolk County, New York · 1.5 MI E of E Northport · Structure no. 000000002261120

Built
1990
35 years old
Condition
Fair
inspected July 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
132 ft
3 main spans
Daily traffic
3,590
2017 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Old Bridge Road over LIRR Pt Jeff Brch is a prestressed concrete continuous box beam or girders - multiple carrying Old Bridge Road over LIRR Pt Jeff Brch in Suffolk County, New York. It was built in 1990, so it is 35 years old, younger 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 3,590 vehicles a day, roughly 3% of them trucks, projected to reach 4,441 by 2041. The structure is 132 ft (40.2 m) long and 45 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesOld Bridge Road
CrossesLIRR Pt Jeff Brch
Location1.5 MI E of E Northport
Coordinates40.88183, -73.30024
Functional classUrban Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20
Structure length132 ft (40.2 m)
Longest span44 ft (13.4 m)
Deck width45 ft (13.7 m)
Roadway width37 ft (11.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,590 (2017)
Projected traffic4,441 by 2041
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$3 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Old Bridge Road over LIRR Pt Jeff Brch built?

It was built in 1990, making it 35 years old in 2025.

What condition is Old Bridge Road over LIRR Pt Jeff Brch 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 July 2024.

How much traffic does Old Bridge Road over LIRR Pt Jeff Brch carry?

About 3,590 vehicles per day (2017 count), of which roughly 3% are trucks.

How long is Old Bridge Road over LIRR Pt Jeff Brch?

The structure is 132 ft (40.2 m) long with a longest span of 44 ft (13.4 m) and a deck 45 ft wide.

Who owns Old Bridge Road over LIRR Pt Jeff Brch?

It is owned by the Town or Township Highway Agency.