US Bridges

Hillsdale Avenue over Garden State Parkway

Fair

Bergen County, New Jersey · 4.75 MI N of GSP&NJ17 JCT · Structure no. 361680T

Built
1956
69 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
251 ft
5 main spans
Daily traffic
17,558
2024 count
Owner
Toll Authority
State Toll Authority

About this bridge

Hillsdale Avenue over Garden State Parkway is a prestressed concrete stringer/multi-beam or girder carrying Hillsdale Avenue over Garden State Parkway in Bergen County, New Jersey. It was built in 1956, so it is 69 years old, older than the New Jersey average of 58.5 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 17,558 vehicles a day, roughly 4% of them trucks, projected to reach 21,069 by 2044. The structure is 251 ft (76.5 m) long and 54 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesHillsdale Avenue
CrossesGarden State Parkway
Location4.75 MI N of GSP&NJ17 JCT
RouteCounty Highway 112
Coordinates41.0069, -74.07008
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.
Substructure7 GoodSome minor problems.
Last inspectionMay 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 rating52.5 US tons
Inventory rating30.8 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadH 20
Structure length251 ft (76.5 m)
Longest span57 ft (17.4 m)
Deck width54 ft (16.5 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,558 (2024)
Projected traffic21,069 by 2044
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Toll Authority
Maintained byState Toll Authority
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Hillsdale Avenue over Garden State Parkway built?

It was built in 1956, making it 69 years old in 2025.

What condition is Hillsdale Avenue over Garden State Parkway 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 May 2024.

How much traffic does Hillsdale Avenue over Garden State Parkway carry?

About 17,558 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is Hillsdale Avenue over Garden State Parkway?

The structure is 251 ft (76.5 m) long with a longest span of 57 ft (17.4 m) and a deck 54 ft wide.

Who owns Hillsdale Avenue over Garden State Parkway?

It is owned by the State Toll Authority.