US Bridges

US 22 over Green Brook

Fair

Somerset County, New Jersey · 10 MI East of I-287 · Structure no. 1803159

Built
1998
27 years old
Condition
Fair
inspected October 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
62 ft
1 main span
Daily traffic
54,269
2023 count
Owner
State
State Highway Agency

About this bridge

US 22 over Green Brook is a prestressed concrete box beam or girders - multiple carrying US 22 over Green Brook in Somerset County, New Jersey. It was built in 1998, so it is 27 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 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.

It carries about 54,269 vehicles a day, roughly 4% of them trucks, projected to reach 66,218 by 2043. The structure is 62 ft (18.9 m) long and 112 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesUS 22
CrossesGreen Brook
Location10 MI East of I-287
RouteU.S. Route 22
CountySomerset County
StateNew Jersey
Coordinates40.64917, -74.40657
Functional classUrban Other Principal Arterial

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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating89.9 US tons
Inventory rating54 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length62 ft (18.9 m)
Longest span57 ft (17.4 m)
Deck width112 ft (34 m)
Roadway width100 ft (30.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic54,269 (2023)
Projected traffic66,218 by 2043
Trucks4%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 US 22 over Green Brook built?

It was built in 1998, making it 27 years old in 2025.

What condition is US 22 over Green 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 October 2023.

How much traffic does US 22 over Green Brook carry?

About 54,269 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is US 22 over Green Brook?

The structure is 62 ft (18.9 m) long with a longest span of 57 ft (17.4 m) and a deck 112 ft wide.

Who owns US 22 over Green Brook?

It is owned by the State Highway Agency.