Nj 18 NB over Southern Secondary
GoodMonmouth County, New Jersey · 0.7 MI North of Gsp JCT · Structure no. 1323155
- Built
- 1979
- 46 years old
- Condition
- Good
- inspected June 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 150 ft
- 1 main span
- Daily traffic
- 20,800
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Nj 18 NB over Southern Secondary is a steel stringer/multi-beam or girder carrying Nj 18 NB over Southern Secondary in Monmouth County, New Jersey. It was built in 1979, so it is 46 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 20,800 vehicles a day, roughly 5% of them trucks, projected to reach 25,000 by 2043. The structure is 150 ft (45.7 m) long and 48 ft wide. If it were closed, the detour would be 1.9 mi (3 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Nj 18 NB over Southern Secondary built?
It was built in 1979, making it 46 years old in 2025.
What condition is Nj 18 NB over Southern Secondary in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2023.
How much traffic does Nj 18 NB over Southern Secondary carry?
About 20,800 vehicles per day (2023 count), of which roughly 5% are trucks.
How long is Nj 18 NB over Southern Secondary?
The structure is 150 ft (45.7 m) long with a longest span of 148 ft (45.1 m) and a deck 48 ft wide.
Who owns Nj 18 NB over Southern Secondary?
It is owned by the State Highway Agency.