US Bridges

18th Avenue over Garden ST Pkwy NB & SB

Fair

Essex County, New Jersey · 0.6 MI South of CR 510 · Structure no. 361455T

Built
1954
71 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
133 ft
2 main spans
Daily traffic
8,634
2023 count
Owner
Toll Authority
State Toll Authority

About this bridge

18th Avenue over Garden ST Pkwy NB & SB is a steel stringer/multi-beam or girder carrying 18th Avenue over Garden ST Pkwy NB & SB in Essex County, New Jersey. It was built in 1954, so it is 71 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 8,634 vehicles a day, roughly 4% of them trucks, projected to reach 10,536 by 2043. The structure is 133 ft (40.5 m) long and 56 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

No coordinates are recorded for this structure.

Carries18th Avenue
CrossesGarden ST Pkwy NB & SB
Location0.6 MI South of CR 510
RouteCity Street 0
CountyEssex County
StateNew Jersey
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
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 rating51 US tons
Inventory rating39.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length133 ft (40.5 m)
Longest span64 ft (19.5 m)
Deck width56 ft (17.1 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,634 (2023)
Projected traffic10,536 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.2 mi (2 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$3.1 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was 18th Avenue over Garden ST Pkwy NB & SB built?

It was built in 1954, making it 71 years old in 2025.

What condition is 18th Avenue over Garden ST Pkwy NB & SB 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 2023.

How much traffic does 18th Avenue over Garden ST Pkwy NB & SB carry?

About 8,634 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is 18th Avenue over Garden ST Pkwy NB & SB?

The structure is 133 ft (40.5 m) long with a longest span of 64 ft (19.5 m) and a deck 56 ft wide.

Who owns 18th Avenue over Garden ST Pkwy NB & SB?

It is owned by the State Toll Authority.