Nsi & Sni Roadways over Millstone River
FairMercer County, New Jersey · 1.2 MI North of Int. 8 · Structure no. M068750
- Built
- 1950
- 75 years old, rebuilt 1956
- Condition
- Fair
- inspected April 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 111 ft
- 3 main spans
- Daily traffic
- 99,482
- 2023 count
- Owner
- Toll Authority
- State Toll Authority
About this bridge
Nsi & Sni Roadways over Millstone River is a steel stringer/multi-beam or girder carrying Nsi & Sni Roadways over Millstone River in Mercer County, New Jersey. It was built in 1950 and reconstructed in 1956, so it is 75 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 99,482 vehicles a day, roughly 1% of them trucks, projected to reach 195,752 by 2043. The structure is 111 ft (33.8 m) long and 128 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 | 7 Good | Some minor problems. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Nsi & Sni Roadways over Millstone River built?
It was built in 1950, making it 75 years old in 2025. It was reconstructed in 1956.
What condition is Nsi & Sni Roadways over Millstone River 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 April 2023.
How much traffic does Nsi & Sni Roadways over Millstone River carry?
About 99,482 vehicles per day (2023 count), of which roughly 1% are trucks.
How long is Nsi & Sni Roadways over Millstone River?
The structure is 111 ft (33.8 m) long with a longest span of 47 ft (14.3 m) and a deck 128 ft wide.
Who owns Nsi & Sni Roadways over Millstone River?
It is owned by the State Toll Authority.