US Bridges

Openaki Road over Den Brook

FairPosted for load

Morris County, New Jersey · 2.75MI W of NJ10&NJ53 JCT · Structure no. 1400779

Built
1924
101 years old, rebuilt 1992
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
54 ft
3 main spans
Daily traffic
4,517
2023 count
Owner
County
County Highway Agency

About this bridge

Openaki Road over Den Brook is a steel continuous stringer/multi-beam or girder carrying Openaki Road over Den Brook in Morris County, New Jersey. It was built in 1924 and reconstructed in 1992, so it is 101 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. Its operating status is: posted for load restriction.

It carries about 4,517 vehicles a day, roughly 3% of them trucks, projected to reach 6,005 by 2043. The structure is 54 ft (16.5 m) long and 15 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesOpenaki Road
CrossesDen Brook
Location2.75MI W of NJ10&NJ53 JCT
RouteCity Street 0
Coordinates40.85652, -74.52677
Functional classUrban Collector

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.
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.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment2: Basically intolerable, requiring high priority of replacement
Operating rating37 US tons
Inventory rating22 US tons

Structure

MaterialSteel Continuous
DeckCorrugated steel
Main spans3
Design loadUnknown
Structure length54 ft (16.5 m)
Longest span18 ft (5.5 m)
Deck width15 ft (4.6 m)
Roadway width15 ft (4.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,517 (2023)
Projected traffic6,005 by 2043
Trucks3%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.9 million (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Openaki Road over Den Brook built?

It was built in 1924, making it 101 years old in 2025. It was reconstructed in 1992.

What condition is Openaki Road over Den 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 June 2023.

How much traffic does Openaki Road over Den Brook carry?

About 4,517 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Openaki Road over Den Brook?

The structure is 54 ft (16.5 m) long with a longest span of 18 ft (5.5 m) and a deck 15 ft wide.

Who owns Openaki Road over Den Brook?

It is owned by the County Highway Agency.