US Bridges

Harlan School Road over Chambers Brook

Good

Somerset County, New Jersey · 0.2 MI E of CR 637 · Structure no. 18C0804

Built
2009
16 years old
Condition
Good
inspected September 2023
Type
Slab
Wood or Timber
Length
31 ft
1 main span
Daily traffic
913
2023 count
Owner
County
County Highway Agency

About this bridge

Harlan School Road over Chambers Brook is a wood or timber slab carrying Harlan School Road over Chambers Brook in Somerset County, New Jersey. It was built in 2009, so it is 16 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 913 vehicles a day, roughly 1% of them trucks, projected to reach 1,095 by 2043. The structure is 31 ft (9.4 m) long and 44 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

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CarriesHarlan School Road
CrossesChambers Brook
Location0.2 MI E of CR 637
RouteCity Street 0
CountySomerset County
StateNew Jersey
Coordinates40.58291, -74.70987
Functional classUrban Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.1 US tons
Inventory rating45 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadHS 25 or greater
Structure length31 ft (9.4 m)
Longest span27 ft (8.2 m)
Deck width44 ft (13.4 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic913 (2023)
Projected traffic1,095 by 2043
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed6.2 mi (10 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 Harlan School Road over Chambers Brook built?

It was built in 2009, making it 16 years old in 2025.

What condition is Harlan School Road over Chambers Brook in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2023.

How much traffic does Harlan School Road over Chambers Brook carry?

About 913 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is Harlan School Road over Chambers Brook?

The structure is 31 ft (9.4 m) long with a longest span of 27 ft (8.2 m) and a deck 44 ft wide.

Who owns Harlan School Road over Chambers Brook?

It is owned by the County Highway Agency.