US Bridges

Sycamore Ave (13A) over Garden State Parkway

Fair

Monmouth County, New Jersey · 2.16 Mi. N. of 18/GSP JCT · Structure no. 361083T

Built
1972
53 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
482 ft
6 main spans
Daily traffic
16,937
2024 count
Owner
Toll Authority
State Toll Authority

About this bridge

Sycamore Ave (13A) over Garden State Parkway is a prestressed concrete stringer/multi-beam or girder carrying Sycamore Ave (13A) over Garden State Parkway in Monmouth County, New Jersey. It was built in 1972, so it is 53 years old, younger 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 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 16,937 vehicles a day, roughly 4% of them trucks, projected to reach 20,667 by 2044. The structure is 482 ft (146.9 m) long and 40 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesSycamore Ave (13A)
CrossesGarden State Parkway
Location2.16 Mi. N. of 18/GSP JCT
RouteCounty Highway 13A
CountyMonmouth County
StateNew Jersey
Coordinates40.31085, -74.09513
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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating32.2 US tons
Inventory rating14.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans6
Design loadH 20
Structure length482 ft (146.9 m)
Longest span77 ft (23.5 m)
Deck width40 ft (12.2 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,937 (2024)
Projected traffic20,667 by 2044
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed3.1 mi (5 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$1 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Sycamore Ave (13A) over Garden State Parkway built?

It was built in 1972, making it 53 years old in 2025.

What condition is Sycamore Ave (13A) 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 August 2024.

How much traffic does Sycamore Ave (13A) over Garden State Parkway carry?

About 16,937 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is Sycamore Ave (13A) over Garden State Parkway?

The structure is 482 ft (146.9 m) long with a longest span of 77 ft (23.5 m) and a deck 40 ft wide.

Who owns Sycamore Ave (13A) over Garden State Parkway?

It is owned by the State Toll Authority.