US 1 over Millstone River
GoodMercer County, New Jersey · 5.2 MI North of I-295 · Structure no. 1103155
- Built
- 2010
- 15 years old
- Condition
- Good
- inspected December 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 112 ft
- 1 main span
- Daily traffic
- 93,321
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 1 over Millstone River is a prestressed concrete box beam or girders - multiple carrying US 1 over Millstone River in Mercer County, New Jersey. It was built in 2010, so it is 15 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 93,321 vehicles a day, roughly 4% of them trucks, projected to reach 111,986 by 2043. The structure is 112 ft (34.1 m) long and 130 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 8 Very Good | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 1 over Millstone River built?
It was built in 2010, making it 15 years old in 2025.
What condition is US 1 over Millstone River 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 December 2023.
How much traffic does US 1 over Millstone River carry?
About 93,321 vehicles per day (2023 count), of which roughly 4% are trucks.
How long is US 1 over Millstone River?
The structure is 112 ft (34.1 m) long with a longest span of 108 ft (32.9 m) and a deck 130 ft wide.
Who owns US 1 over Millstone River?
It is owned by the State Highway Agency.