US Bridges

CR 4(SOUTH Street) over Willow Brook

Fair

Monmouth County, New Jersey · 0.7 Ml NE of Nj 34 · Structure no. 1300H30

Built
1965
60 years old
Condition
Fair
inspected April 2023
Type
Slab
Prestressed Concrete
Length
46 ft
3 main spans
Daily traffic
5,183
2023 count
Owner
County
County Highway Agency

About this bridge

CR 4(SOUTH Street) over Willow Brook is a prestressed concrete slab carrying CR 4(SOUTH Street) over Willow Brook in Monmouth County, New Jersey. It was built in 1965, so it is 60 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 fair condition with a lowest component rating of 5 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 5,183 vehicles a day, roughly 4% of them trucks, projected to reach 6,220 by 2043. The structure is 46 ft (14 m) long and 34 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCR 4(SOUTH Street)
CrossesWillow Brook
Location0.7 Ml NE of Nj 34
RouteCounty Highway 4
CountyMonmouth County
StateNew Jersey
Coordinates40.3381, -74.18713
Functional classUrban Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating22 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadUnknown
Structure length46 ft (14 m)
Longest span15 ft (4.6 m)
Deck width34 ft (10.4 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,183 (2023)
Projected traffic6,220 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
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 statusHistorical significance not determinable at this time
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$121,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was CR 4(SOUTH Street) over Willow Brook built?

It was built in 1965, making it 60 years old in 2025.

What condition is CR 4(SOUTH Street) over Willow 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 April 2023.

How much traffic does CR 4(SOUTH Street) over Willow Brook carry?

About 5,183 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is CR 4(SOUTH Street) over Willow Brook?

The structure is 46 ft (14 m) long with a longest span of 15 ft (4.6 m) and a deck 34 ft wide.

Who owns CR 4(SOUTH Street) over Willow Brook?

It is owned by the County Highway Agency.