Rockafellows Mill over S.Branch Raritan River
GoodPosted for loadHunterdon County, New Jersey · 0.35 MI North of US 202 · Structure no. 10RQ164
- Built
- 1900
- 125 years old, rebuilt 2010
- Condition
- Good
- inspected June 2023
- Type
- Truss - Thru
- Aluminum, Wrought Iron, or Cast Iron
- Length
- 143 ft
- 1 main span
- Daily traffic
- 616
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
Rockafellows Mill over S.Branch Raritan River is a aluminum, wrought iron, or cast iron truss - thru carrying Rockafellows Mill over S.Branch Raritan River in Hunterdon County, New Jersey. It was built in 1900 and reconstructed in 2010, so it is 125 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. Its operating status is: posted for load restriction.
It carries about 616 vehicles a day, roughly 3% of them trucks, projected to reach 739 by 2043. The structure is 143 ft (43.6 m) long and 16 ft wide. If it were closed, the detour would be 8.7 mi (14 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. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Rockafellows Mill over S.Branch Raritan River built?
It was built in 1900, making it 125 years old in 2025. It was reconstructed in 2010.
What condition is Rockafellows Mill over S.Branch Raritan 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 June 2023.
How much traffic does Rockafellows Mill over S.Branch Raritan River carry?
About 616 vehicles per day (2023 count), of which roughly 3% are trucks.
How long is Rockafellows Mill over S.Branch Raritan River?
The structure is 143 ft (43.6 m) long with a longest span of 138 ft (42.1 m) and a deck 16 ft wide.
Who owns Rockafellows Mill over S.Branch Raritan River?
It is owned by the County Highway Agency.