US Bridges

Belle Mead CR 601 over Rock Brook

Good

Somerset County, New Jersey · 0.23 MI North CR 518 · Structure no. 18C0208

Built
2001
24 years old
Condition
Good
inspected August 2023
Type
Truss - Thru
Steel
Length
59 ft
1 main span
Daily traffic
11,166
2023 count
Owner
County
County Highway Agency

About this bridge

Belle Mead CR 601 over Rock Brook is a steel truss - thru carrying Belle Mead CR 601 over Rock Brook in Somerset County, New Jersey. It was built in 2001, so it is 24 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 11,166 vehicles a day, roughly 3% of them trucks, projected to reach 13,399 by 2043. The structure is 59 ft (18 m) long and 39 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesBelle Mead CR 601
CrossesRock Brook
Location0.23 MI North CR 518
RouteCounty Highway 601
CountySomerset County
StateNew Jersey
Coordinates40.41151, -74.70235
Functional classUrban Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.9 US tons
Inventory rating18 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length59 ft (18 m)
Longest span54 ft (16.5 m)
Deck width39 ft (11.8 m)
Roadway width35 ft (10.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,166 (2023)
Projected traffic13,399 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Belle Mead CR 601 over Rock Brook built?

It was built in 2001, making it 24 years old in 2025.

What condition is Belle Mead CR 601 over Rock Brook 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 2023.

How much traffic does Belle Mead CR 601 over Rock Brook carry?

About 11,166 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Belle Mead CR 601 over Rock Brook?

The structure is 59 ft (18 m) long with a longest span of 54 ft (16.5 m) and a deck 39 ft wide.

Who owns Belle Mead CR 601 over Rock Brook?

It is owned by the County Highway Agency.