Rattlesnake Br. RD over I-78
GoodSomerset County, New Jersey · 4 MI West of I-287 · Structure no. 1816150
- Built
- 1965
- 60 years old, rebuilt 2020
- Condition
- Good
- inspected August 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 173 ft
- 2 main spans
- Daily traffic
- 10,441
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
Rattlesnake Br. RD over I-78 is a prestressed concrete stringer/multi-beam or girder carrying Rattlesnake Br. RD over I-78 in Somerset County, New Jersey. It was built in 1965 and reconstructed in 2020, so it is 60 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 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 10,441 vehicles a day, roughly 3% of them trucks, projected to reach 12,530 by 2044. The structure is 173 ft (52.7 m) long and 44 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 Rattlesnake Br. RD over I-78 built?
It was built in 1965, making it 60 years old in 2025. It was reconstructed in 2020.
What condition is Rattlesnake Br. RD over I-78 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 August 2024.
How much traffic does Rattlesnake Br. RD over I-78 carry?
About 10,441 vehicles per day (2024 count), of which roughly 3% are trucks.
How long is Rattlesnake Br. RD over I-78?
The structure is 173 ft (52.7 m) long with a longest span of 86 ft (26.2 m) and a deck 44 ft wide.
Who owns Rattlesnake Br. RD over I-78?
It is owned by the State Highway Agency.