US Bridges

Holland Brook Road over Holland Brook

Fair

Hunterdon County, New Jersey · 50 Ft East of Cole Road · Structure no. 1000138

Built
1955
70 years old, rebuilt 1990
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
26 ft
1 main span
Daily traffic
169
2023 count
Owner
County
County Highway Agency

About this bridge

Holland Brook Road over Holland Brook is a steel stringer/multi-beam or girder carrying Holland Brook Road over Holland Brook in Hunterdon County, New Jersey. It was built in 1955 and reconstructed in 1990, so it is 70 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 169 vehicles a day, roughly 3% of them trucks, projected to reach 206 by 2043. The structure is 26 ft (7.9 m) long and 17 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesHolland Brook Road
CrossesHolland Brook
Location50 Ft East of Cole Road
RouteCity Street 0
CountyHunterdon County
StateNew Jersey
Coordinates40.5783, -74.77432
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating97 US tons
Inventory rating58 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length26 ft (7.9 m)
Longest span24 ft (7.3 m)
Deck width17 ft (5.2 m)
Roadway width16 ft (5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic169 (2023)
Projected traffic206 by 2043
Trucks3%
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 statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$332,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Holland Brook Road over Holland Brook built?

It was built in 1955, making it 70 years old in 2025. It was reconstructed in 1990.

What condition is Holland Brook Road over Holland 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 2023.

How much traffic does Holland Brook Road over Holland Brook carry?

About 169 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Holland Brook Road over Holland Brook?

The structure is 26 ft (7.9 m) long with a longest span of 24 ft (7.3 m) and a deck 17 ft wide.

Who owns Holland Brook Road over Holland Brook?

It is owned by the County Highway Agency.