US Bridges

Old Northport RD over 908K908K07011091 RTE 90

Fair

Suffolk County, New York · 1.7 MI S Smsp+rte 25A · Structure no. 000000001059020

Built
1955
70 years old
Condition
Fair
inspected February 2024
Type
Frame
Concrete
Length
76 ft
1 main span
Daily traffic
5,049
2020 count
Owner
State
State Highway Agency

About this bridge

Old Northport RD over 908K908K07011091 RTE 90 is a concrete frame carrying Old Northport RD over 908K908K07011091 RTE 90 in Suffolk County, New York. It was built in 1955, so it is 70 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 5 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 5,049 vehicles a day, roughly 18% of them trucks, projected to reach 6,247 by 2041. The structure is 76 ft (23.2 m) long and 49 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesOld Northport RD
Crosses908K908K07011091 RTE 90
Location1.7 MI S Smsp+rte 25A
CountySuffolk County
StateNew York
Coordinates40.87543, -73.27947
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 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 geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.7 US tons
Inventory rating25.4 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckNot applicable
Main spans1
Design loadH 20
Structure length76 ft (23.2 m)
Longest span66 ft (20.1 m)
Deck width49 ft (14.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,049 (2020)
Projected traffic6,247 by 2041
Trucks18%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
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$3.7 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Old Northport RD over 908K908K07011091 RTE 90 built?

It was built in 1955, making it 70 years old in 2025.

What condition is Old Northport RD over 908K908K07011091 RTE 90 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 February 2024.

How much traffic does Old Northport RD over 908K908K07011091 RTE 90 carry?

About 5,049 vehicles per day (2020 count), of which roughly 18% are trucks.

How long is Old Northport RD over 908K908K07011091 RTE 90?

The structure is 76 ft (23.2 m) long with a longest span of 66 ft (20.1 m) and a deck 49 ft wide.

Who owns Old Northport RD over 908K908K07011091 RTE 90?

It is owned by the State Highway Agency.