US Bridges

Lamington Road over Rockaway Creek

FairPosted for load

Hunterdon County, New Jersey · 1.0 MI North of US 22 · Structure no. 10XXR20

Built
1890
135 years old, rebuilt 2000
Condition
Fair
inspected June 2023
Type
Girder and Floorbeam System
Steel
Length
60 ft
1 main span
Daily traffic
978
2023 count
Owner
County
County Highway Agency

About this bridge

Lamington Road over Rockaway Creek is a steel girder and floorbeam system carrying Lamington Road over Rockaway Creek in Hunterdon County, New Jersey. It was built in 1890 and reconstructed in 2000, so it is 135 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 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 978 vehicles a day, roughly 3% of them trucks, projected to reach 1,173 by 2043. The structure is 60 ft (18.3 m) long and 16 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesLamington Road
CrossesRockaway Creek
Location1.0 MI North of US 22
CountyHunterdon County
StateNew Jersey
Coordinates40.63014, -74.73628
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating55 US tons
Inventory rating33 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length60 ft (18.3 m)
Longest span58 ft (17.7 m)
Deck width16 ft (4.9 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deck12 ft (3.7 m)

Traffic and service

Average daily traffic978 (2023)
Projected traffic1,173 by 2043
Trucks3%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
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 statusEligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.3 million (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Lamington Road over Rockaway Creek built?

It was built in 1890, making it 135 years old in 2025. It was reconstructed in 2000.

What condition is Lamington Road over Rockaway Creek 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 June 2023.

How much traffic does Lamington Road over Rockaway Creek carry?

About 978 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Lamington Road over Rockaway Creek?

The structure is 60 ft (18.3 m) long with a longest span of 58 ft (17.7 m) and a deck 16 ft wide.

Who owns Lamington Road over Rockaway Creek?

It is owned by the County Highway Agency.