US Bridges

Long Bridge Road over Willow Brook

Fair

Monmouth County, New Jersey · 1 M North of Laird Road · Structure no. 1300A54

Built
1961
64 years old
Condition
Fair
inspected April 2023
Type
Slab
Concrete Continuous
Length
75 ft
4 main spans
Daily traffic
1,634
2023 count
Owner
County
County Highway Agency

About this bridge

Long Bridge Road over Willow Brook is a concrete continuous slab carrying Long Bridge Road over Willow Brook in Monmouth County, New Jersey. It was built in 1961, so it is 64 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 1,634 vehicles a day, roughly 3% of them trucks, projected to reach 1,994 by 2043. The structure is 75 ft (22.9 m) long and 22 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesLong Bridge Road
CrossesWillow Brook
Location1 M North of Laird Road
CountyMonmouth County
StateNew Jersey
Coordinates40.32622, -74.15957
Functional classUrban Local

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 protection7 GoodSome minor problems.
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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating47 US tons
Inventory rating28 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadUnknown
Structure length75 ft (22.9 m)
Longest span18 ft (5.5 m)
Deck width22 ft (6.7 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,634 (2023)
Projected traffic1,994 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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$979,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Long Bridge Road over Willow Brook built?

It was built in 1961, making it 64 years old in 2025.

What condition is Long Bridge Road 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 Long Bridge Road over Willow Brook carry?

About 1,634 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Long Bridge Road over Willow Brook?

The structure is 75 ft (22.9 m) long with a longest span of 18 ft (5.5 m) and a deck 22 ft wide.

Who owns Long Bridge Road over Willow Brook?

It is owned by the County Highway Agency.