Millstone Road over Millstone River
PoorMercer County, New Jersey · 0.5 MI N.Of County Rt 615 · Structure no. 1107604
- Built
- 1967
- 58 years old
- Condition
- Poor
- inspected February 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 84 ft
- 1 main span
- Daily traffic
- 8,435
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
Millstone Road over Millstone River is a steel stringer/multi-beam or girder carrying Millstone Road over Millstone River in Mercer County, New Jersey. It was built in 1967, so it is 58 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 8,435 vehicles a day, roughly 4% of them trucks, projected to reach 10,290 by 2043. The structure is 84 ft (25.6 m) long and 38 ft wide. If it were closed, the detour would be 3.1 mi (5 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Millstone Road over Millstone River built?
It was built in 1967, making it 58 years old in 2025.
What condition is Millstone Road over Millstone River in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in February 2023.
How much traffic does Millstone Road over Millstone River carry?
About 8,435 vehicles per day (2023 count), of which roughly 4% are trucks.
How long is Millstone Road over Millstone River?
The structure is 84 ft (25.6 m) long with a longest span of 80 ft (24.4 m) and a deck 38 ft wide.
Who owns Millstone Road over Millstone River?
It is owned by the County Highway Agency.