Blackwells Mlls RD over Delaware & Raritan Canal
FairPosted for loadSomerset County, New Jersey · 0.23 MI E of CR 533 JCT · Structure no. 3000164
- Built
- 1948
- 77 years old, rebuilt 1991
- Condition
- Fair
- inspected June 2023
- Type
- Stringer/Multi-beam or Girder
- Wood or Timber
- Length
- 47 ft
- 3 main spans
- Daily traffic
- 8,728
- 2023 count
- Owner
- State
- Other State Agency
About this bridge
Blackwells Mlls RD over Delaware & Raritan Canal is a wood or timber stringer/multi-beam or girder carrying Blackwells Mlls RD over Delaware & Raritan Canal in Somerset County, New Jersey. It was built in 1948 and reconstructed in 1991, so it is 77 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. Its operating status is: posted for load restriction.
It carries about 8,728 vehicles a day, roughly 1% of them trucks, projected to reach 10,649 by 2043. The structure is 47 ft (14.3 m) long and 44 ft wide. If it were closed, the detour would be 3.7 mi (6 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Blackwells Mlls RD over Delaware & Raritan Canal built?
It was built in 1948, making it 77 years old in 2025. It was reconstructed in 1991.
What condition is Blackwells Mlls RD over Delaware & Raritan Canal 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 June 2023.
How much traffic does Blackwells Mlls RD over Delaware & Raritan Canal carry?
About 8,728 vehicles per day (2023 count), of which roughly 1% are trucks.
How long is Blackwells Mlls RD over Delaware & Raritan Canal?
The structure is 47 ft (14.3 m) long with a longest span of 14 ft (4.3 m) and a deck 44 ft wide.
Who owns Blackwells Mlls RD over Delaware & Raritan Canal?
It is owned by the Other State Agency and maintained by the State Highway Agency.