US Bridges

Nj 18 NB over Nj 33

Fair

Monmouth County, New Jersey · 1.56 Mi. South of Nj 66 · Structure no. 1328150

Built
1965
60 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
157 ft
3 main spans
Daily traffic
21,140
2022 count
Owner
State
State Highway Agency

About this bridge

Nj 18 NB over Nj 33 is a steel stringer/multi-beam or girder carrying Nj 18 NB over Nj 33 in Monmouth County, New Jersey. It was built in 1965, so it is 60 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 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 21,140 vehicles a day, roughly 5% of them trucks, projected to reach 29,840 by 2042. The structure is 157 ft (47.9 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesNj 18 NB
CrossesNj 33
Location1.56 Mi. South of Nj 66
RouteState Highway 18
CountyMonmouth County
StateNew Jersey
Coordinates40.20599, -74.05262
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 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 geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment7: Better than present minimum criteria
Operating rating64 US tons
Inventory rating38 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length157 ft (47.9 m)
Longest span99 ft (30.2 m)
Deck width45 ft (13.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,140 (2022)
Projected traffic29,840 by 2042
Trucks5%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$1,000 (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Nj 18 NB over Nj 33 built?

It was built in 1965, making it 60 years old in 2025.

What condition is Nj 18 NB over Nj 33 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 Nj 18 NB over Nj 33 carry?

About 21,140 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is Nj 18 NB over Nj 33?

The structure is 157 ft (47.9 m) long with a longest span of 99 ft (30.2 m) and a deck 45 ft wide.

Who owns Nj 18 NB over Nj 33?

It is owned by the State Highway Agency.