US Bridges

CR 6 (amboy Avenue over Matawan Creek

Good

Monmouth County, New Jersey · Near Keyport Harbor · Structure no. 130MA14

Built
2018
7 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
352 ft
4 main spans
Daily traffic
6,816
2023 count
Owner
County
County Highway Agency

About this bridge

CR 6 (amboy Avenue over Matawan Creek is a steel stringer/multi-beam or girder carrying CR 6 (amboy Avenue over Matawan Creek in Monmouth County, New Jersey. It was built in 2018, so it is 7 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 6,816 vehicles a day, roughly 3% of them trucks, projected to reach 8,179 by 2043. The structure is 352 ft (107.3 m) long and 47 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesCR 6 (amboy Avenue
CrossesMatawan Creek
LocationNear Keyport Harbor
RouteCounty Highway 6
CountyMonmouth County
StateNew Jersey
Coordinates40.4355, -74.21409
Functional classUrban Collector

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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating98 US tons
Inventory rating59 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4 (+2 approach)
Design loadHL 93
Structure length352 ft (107.3 m)
Longest span100 ft (30.5 m)
Deck width47 ft (14.4 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,816 (2023)
Projected traffic8,179 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was CR 6 (amboy Avenue over Matawan Creek built?

It was built in 2018, making it 7 years old in 2025.

What condition is CR 6 (amboy Avenue over Matawan Creek 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 May 2023.

How much traffic does CR 6 (amboy Avenue over Matawan Creek carry?

About 6,816 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is CR 6 (amboy Avenue over Matawan Creek?

The structure is 352 ft (107.3 m) long with a longest span of 100 ft (30.5 m) and a deck 47 ft wide.

Who owns CR 6 (amboy Avenue over Matawan Creek?

It is owned by the County Highway Agency.