US Bridges

Bloomfield Avenue over Den Brook

Fair

Morris County, New Jersey · 0.4MI E of US46&NJ53 JCT · Structure no. 1400937

Built
1921
104 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
37 ft
1 main span
Daily traffic
40,533
2023 count
Owner
County
County Highway Agency

About this bridge

Bloomfield Avenue over Den Brook is a steel stringer/multi-beam or girder carrying Bloomfield Avenue over Den Brook in Morris 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 40,533 vehicles a day, roughly 1% of them trucks, projected to reach 49,458 by 2043. The structure is 37 ft (11.3 m) long and 32 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesBloomfield Avenue
CrossesDen Brook
Location0.4MI E of US46&NJ53 JCT
RouteCity Street 0
CountyMorris County
StateNew Jersey
Coordinates40.88983, -74.47097
Functional classUrban Local

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 rating68 US tons
Inventory rating40 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length37 ft (11.3 m)
Longest span36 ft (11 m)
Deck width32 ft (9.9 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40,533 (2023)
Projected traffic49,458 by 2043
Trucks1%
Lanes on structure2
Traffic directionOne-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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Bloomfield Avenue over Den Brook built?

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

What condition is Bloomfield Avenue 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 July 2023.

How much traffic does Bloomfield Avenue over Den Brook carry?

About 40,533 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is Bloomfield Avenue over Den Brook?

The structure is 37 ft (11.3 m) long with a longest span of 36 ft (11 m) and a deck 32 ft wide.

Who owns Bloomfield Avenue over Den Brook?

It is owned by the County Highway Agency.