US Bridges

Jones Road over Flat Rock Brook

Fair

Bergen County, New Jersey · 0.1 Mi. N of Nj 4 · Structure no. 020015H

Built
1968
57 years old
Condition
Fair
inspected May 2024
Type
Slab
Prestressed Concrete
Length
30 ft
1 main span
Daily traffic
11,329
2024 count
Owner
County
County Highway Agency

About this bridge

Jones Road over Flat Rock Brook is a prestressed concrete slab carrying Jones Road over Flat Rock Brook in Bergen County, New Jersey. It was built in 1968, so it is 57 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 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 11,329 vehicles a day, roughly 3% of them trucks, projected to reach 13,596 by 2044. The structure is 30 ft (9.1 m) long and 54 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesJones Road
CrossesFlat Rock Brook
Location0.1 Mi. N of Nj 4
RouteCity Street 0
CountyBergen County
StateNew Jersey
Coordinates40.87454, -73.97233
Functional classUrban Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56 US tons
Inventory rating34 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length30 ft (9.1 m)
Longest span27 ft (8.2 m)
Deck width54 ft (16.5 m)
Roadway width36 ft (10.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,329 (2024)
Projected traffic13,596 by 2044
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Jones Road over Flat Rock Brook built?

It was built in 1968, making it 57 years old in 2025.

What condition is Jones Road over Flat Rock Brook 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 May 2024.

How much traffic does Jones Road over Flat Rock Brook carry?

About 11,329 vehicles per day (2024 count), of which roughly 3% are trucks.

How long is Jones Road over Flat Rock Brook?

The structure is 30 ft (9.1 m) long with a longest span of 27 ft (8.2 m) and a deck 54 ft wide.

Who owns Jones Road over Flat Rock Brook?

It is owned by the County Highway Agency.