Manville Causeway over Delaware & Raritan Canal
GoodSomerset County, New Jersey · 1.7 MI N CR 533 & 623 JCT · Structure no. 3000166
- Built
- 2014
- 11 years old
- Condition
- Good
- inspected September 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 56 ft
- 1 main span
- Daily traffic
- 4,940
- 2024 count
- Owner
- State
- Other State Agency
About this bridge
Manville Causeway over Delaware & Raritan Canal is a steel stringer/multi-beam or girder carrying Manville Causeway over Delaware & Raritan Canal in Somerset County, New Jersey. It was built in 2014, so it is 11 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 4,940 vehicles a day, roughly 3% of them trucks, projected to reach 6,028 by 2044. The structure is 56 ft (17.1 m) long and 39 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 8 Very Good | No problems noted. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Manville Causeway over Delaware & Raritan Canal built?
It was built in 2014, making it 11 years old in 2025.
What condition is Manville Causeway over Delaware & Raritan Canal 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 September 2024.
How much traffic does Manville Causeway over Delaware & Raritan Canal carry?
About 4,940 vehicles per day (2024 count), of which roughly 3% are trucks.
How long is Manville Causeway over Delaware & Raritan Canal?
The structure is 56 ft (17.1 m) long with a longest span of 53 ft (16.2 m) and a deck 39 ft wide.
Who owns Manville Causeway over Delaware & Raritan Canal?
It is owned by the Other State Agency and maintained by the State Highway Agency.