US Bridges

Nj 284 over Branch of Wallkill River

Fair

Sussex County, New Jersey · 3.04 Mi. No.Of Nj 23 · Structure no. 1907152

Built
1921
104 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
38 ft
1 main span
Daily traffic
3,837
2024 count
Owner
State
State Highway Agency

About this bridge

Nj 284 over Branch of Wallkill River is a steel stringer/multi-beam or girder carrying Nj 284 over Branch of Wallkill River in Sussex County, New Jersey. It was built in 1921, so it is 104 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 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 3,837 vehicles a day, roughly 4% of them trucks, projected to reach 4,681 by 2044. The structure is 38 ft (11.6 m) long and 32 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesNj 284
CrossesBranch of Wallkill River
Location3.04 Mi. No.Of Nj 23
RouteState Highway 284
CountySussex County
StateNew Jersey
Coordinates41.245, -74.57833
Functional classRural 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating110.1 US tons
Inventory rating67 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length38 ft (11.6 m)
Longest span32 ft (9.8 m)
Deck width32 ft (9.9 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,837 (2024)
Projected traffic4,681 by 2044
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$62,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nj 284 over Branch of Wallkill River built?

It was built in 1921, making it 104 years old in 2025.

What condition is Nj 284 over Branch of Wallkill River 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 April 2024.

How much traffic does Nj 284 over Branch of Wallkill River carry?

About 3,837 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is Nj 284 over Branch of Wallkill River?

The structure is 38 ft (11.6 m) long with a longest span of 32 ft (9.8 m) and a deck 32 ft wide.

Who owns Nj 284 over Branch of Wallkill River?

It is owned by the State Highway Agency.