Nj 172 over Nj 18
GoodMiddlesex County, New Jersey · Nj 172 & Nj 18 Jct. · Structure no. 1229152
- Built
- 2009
- 16 years old
- Condition
- Good
- inspected March 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 106 ft
- 1 main span
- Daily traffic
- 17,471
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Nj 172 over Nj 18 is a steel stringer/multi-beam or girder carrying Nj 172 over Nj 18 in Middlesex County, New Jersey. It was built in 2009, so it is 16 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 17,471 vehicles a day, roughly 4% of them trucks, projected to reach 21,336 by 2043. The structure is 106 ft (32.3 m) long and 72 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 8 Very Good | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Nj 172 over Nj 18 built?
It was built in 2009, making it 16 years old in 2025.
What condition is Nj 172 over Nj 18 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 March 2023.
How much traffic does Nj 172 over Nj 18 carry?
About 17,471 vehicles per day (2023 count), of which roughly 4% are trucks.
How long is Nj 172 over Nj 18?
The structure is 106 ft (32.3 m) long with a longest span of 106 ft (32.3 m) and a deck 72 ft wide.
Who owns Nj 172 over Nj 18?
It is owned by the State Highway Agency.