US Bridges

Bilby RD (cr 665) over Washington Secondary

Fair

Warren County, New Jersey · 1.3MI NE US46&CR517 JCT · Structure no. 2154171

Built
1973
52 years old
Condition
Fair
inspected September 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
133 ft
3 main spans
Daily traffic
6,705
2023 count
Owner
Unknown
Unknown

About this bridge

Bilby RD (cr 665) over Washington Secondary is a prestressed concrete box beam or girders - multiple carrying Bilby RD (cr 665) over Washington Secondary in Warren County, New Jersey. It was built in 1973, so it is 52 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 5 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 6,705 vehicles a day, roughly 4% of them trucks, projected to reach 8,181 by 2043. The structure is 133 ft (40.5 m) long and 36 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesBilby RD (cr 665)
CrossesWashington Secondary
Location1.3MI NE US46&CR517 JCT
RouteCounty Highway 665
CountyWarren County
StateNew Jersey
Coordinates40.86912, -74.8153
Functional classUrban Minor 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment6: Equal to present minimum criteria
Operating rating54 US tons
Inventory rating32 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length133 ft (40.5 m)
Longest span43 ft (13.1 m)
Deck width36 ft (11.1 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,705 (2023)
Projected traffic8,181 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerUnknown
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$348,000 (2023 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Bilby RD (cr 665) over Washington Secondary built?

It was built in 1973, making it 52 years old in 2025.

What condition is Bilby RD (cr 665) over Washington Secondary 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 September 2023.

How much traffic does Bilby RD (cr 665) over Washington Secondary carry?

About 6,705 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Bilby RD (cr 665) over Washington Secondary?

The structure is 133 ft (40.5 m) long with a longest span of 43 ft (13.1 m) and a deck 36 ft wide.

Who owns Bilby RD (cr 665) over Washington Secondary?

It is owned by the Unknown and maintained by the State Highway Agency.