I-78 WB over Mulhockaway Creek
FairHunterdon County, New Jersey · 1.1 MI W of I-78 Exit 12 · Structure no. 1015150
- Built
- 1952
- 73 years old, rebuilt 1968
- Condition
- Fair
- inspected December 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 72 ft
- 1 main span
- Daily traffic
- 51,927
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
I-78 WB over Mulhockaway Creek is a steel stringer/multi-beam or girder carrying I-78 WB over Mulhockaway Creek in Hunterdon County, New Jersey. It was built in 1952 and reconstructed in 1968, so it is 73 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 6 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 51,927 vehicles a day, roughly 14% of them trucks, projected to reach 85,526 by 2042. The structure is 72 ft (21.9 m) long and 56 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-78 WB over Mulhockaway Creek built?
It was built in 1952, making it 73 years old in 2025. It was reconstructed in 1968.
What condition is I-78 WB over Mulhockaway Creek 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 December 2023.
How much traffic does I-78 WB over Mulhockaway Creek carry?
About 51,927 vehicles per day (2022 count), of which roughly 14% are trucks.
How long is I-78 WB over Mulhockaway Creek?
The structure is 72 ft (21.9 m) long with a longest span of 67 ft (20.4 m) and a deck 56 ft wide.
Who owns I-78 WB over Mulhockaway Creek?
It is owned by the State Highway Agency.