US Bridges

Caldwell Avenue over Slippery Rock Brook

Fair

Passaic County, New Jersey · 0.2 E of Mcbride AV-CR639 · Structure no. 1600096

Built
1987
38 years old
Condition
Fair
inspected March 2023
Type
Slab
Prestressed Concrete
Length
24 ft
1 main span
Daily traffic
877
2023 count
Owner
County
County Highway Agency

About this bridge

Caldwell Avenue over Slippery Rock Brook is a prestressed concrete slab carrying Caldwell Avenue over Slippery Rock Brook in Passaic County, New Jersey. It was built in 1987, so it is 38 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 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 877 vehicles a day, roughly 1% of them trucks, projected to reach 1,170 by 2043. The structure is 24 ft (7.3 m) long and 50 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesCaldwell Avenue
CrossesSlippery Rock Brook
Location0.2 E of Mcbride AV-CR639
RouteCity Street 0
CountyPassaic County
StateNew Jersey
Coordinates40.90916, -74.18822
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.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 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 geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74 US tons
Inventory rating44 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length24 ft (7.3 m)
Longest span21 ft (6.4 m)
Deck width50 ft (15.2 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic877 (2023)
Projected traffic1,170 by 2043
Trucks1%
Lanes on structure1
Traffic directionOne-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 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 Caldwell Avenue over Slippery Rock Brook built?

It was built in 1987, making it 38 years old in 2025.

What condition is Caldwell Avenue over Slippery 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 March 2023.

How much traffic does Caldwell Avenue over Slippery Rock Brook carry?

About 877 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is Caldwell Avenue over Slippery Rock Brook?

The structure is 24 ft (7.3 m) long with a longest span of 21 ft (6.4 m) and a deck 50 ft wide.

Who owns Caldwell Avenue over Slippery Rock Brook?

It is owned by the County Highway Agency.