US Bridges

CR 512 over Lamington River

Poor

Hunterdon County, New Jersey · 2.5 Miles West of US 206 · Structure no. 1000146

Built
1934
91 years old, rebuilt 1980
Condition
Poor
inspected May 2023
Type
Girder and Floorbeam System
Steel
Length
81 ft
1 main span
Daily traffic
4,193
2023 count
Owner
County
County Highway Agency

About this bridge

CR 512 over Lamington River is a steel girder and floorbeam system carrying CR 512 over Lamington River in Hunterdon County, New Jersey. It was built in 1934 and reconstructed in 1980, so it is 91 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 4,193 vehicles a day, roughly 3% of them trucks, projected to reach 5,031 by 2043. The structure is 81 ft (24.7 m) long and 29 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCR 512
CrossesLamington River
Location2.5 Miles West of US 206
RouteCounty Highway 512
Coordinates40.71525, -74.72043
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating56 US tons
Inventory rating33 US tons

Structure

MaterialSteel
DeckOpen grating
Main spans1
Design loadUnknown
Structure length81 ft (24.7 m)
Longest span78 ft (23.8 m)
Deck width29 ft (8.8 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,193 (2023)
Projected traffic5,031 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.7 million (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was CR 512 over Lamington River built?

It was built in 1934, making it 91 years old in 2025. It was reconstructed in 1980.

What condition is CR 512 over Lamington River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in May 2023.

How much traffic does CR 512 over Lamington River carry?

About 4,193 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is CR 512 over Lamington River?

The structure is 81 ft (24.7 m) long with a longest span of 78 ft (23.8 m) and a deck 29 ft wide.

Who owns CR 512 over Lamington River?

It is owned by the County Highway Agency.