US Bridges

Readington Road over Chambers Brook

Poor

Somerset County, New Jersey · 0.71 MI S of US 22 · Structure no. 18D0902

Built
1930
95 years old, rebuilt 1965
Condition
Poor
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
35 ft
1 main span
Daily traffic
8,509
2023 count
Owner
County
County Highway Agency

About this bridge

Readington Road over Chambers Brook is a steel stringer/multi-beam or girder carrying Readington Road over Chambers Brook in Somerset County, New Jersey. It was built in 1930 and reconstructed in 1965, so it is 95 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 8,509 vehicles a day, roughly 4% of them trucks, projected to reach 10,211 by 2043. The structure is 35 ft (10.7 m) long and 43 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesReadington Road
CrossesChambers Brook
Location0.71 MI S of US 22
RouteCounty Highway 637
Coordinates40.59433, -74.6973
Functional classUrban Minor Arterial

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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating61.9 US tons
Inventory rating37 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length35 ft (10.7 m)
Longest span32 ft (9.8 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,509 (2023)
Projected traffic10,211 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-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 statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$2.4 million (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Readington Road over Chambers Brook built?

It was built in 1930, making it 95 years old in 2025. It was reconstructed in 1965.

What condition is Readington Road over Chambers Brook 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 August 2023.

How much traffic does Readington Road over Chambers Brook carry?

About 8,509 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Readington Road over Chambers Brook?

The structure is 35 ft (10.7 m) long with a longest span of 32 ft (9.8 m) and a deck 43 ft wide.

Who owns Readington Road over Chambers Brook?

It is owned by the County Highway Agency.