US Bridges

Hillcrest Road over Hollands Brook

Fair

Hunterdon County, New Jersey · 50 Ft.S. of Co. Rt. 620 · Structure no. 1000139

Built
1997
28 years old
Condition
Fair
inspected April 2023
Type
Slab
Prestressed Concrete
Length
40 ft
1 main span
Daily traffic
2,203
2023 count
Owner
County
County Highway Agency

About this bridge

Hillcrest Road over Hollands Brook is a prestressed concrete slab carrying Hillcrest Road over Hollands Brook in Hunterdon County, New Jersey. It was built in 1997, so it is 28 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 2,203 vehicles a day, roughly 3% of them trucks, projected to reach 2,687 by 2043. The structure is 40 ft (12.2 m) long and 39 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesHillcrest Road
CrossesHollands Brook
Location50 Ft.S. of Co. Rt. 620
RouteCity Street 0
CountyHunterdon County
StateNew Jersey
Coordinates40.56847, -74.73806
Functional classRural 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating99 US tons
Inventory rating66 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length40 ft (12.2 m)
Longest span37 ft (11.3 m)
Deck width39 ft (11.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,203 (2023)
Projected traffic2,687 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 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 Hillcrest Road over Hollands Brook built?

It was built in 1997, making it 28 years old in 2025.

What condition is Hillcrest Road over Hollands 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 Hillcrest Road over Hollands Brook carry?

About 2,203 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Hillcrest Road over Hollands Brook?

The structure is 40 ft (12.2 m) long with a longest span of 37 ft (11.3 m) and a deck 39 ft wide.

Who owns Hillcrest Road over Hollands Brook?

It is owned by the County Highway Agency.