US Bridges

Colony Avenue over Mill Brook

Fair

Bergen County, New Jersey · .2 MI E of Spring Vally R · Structure no. 020047B

Built
1972
53 years old
Condition
Fair
inspected April 2024
Type
Culvert
Concrete
Length
25 ft
1 main span
Daily traffic
1,000
2024 count
Owner
County
County Highway Agency

About this bridge

Colony Avenue over Mill Brook is a concrete culvert carrying Colony Avenue over Mill Brook in Bergen County, New Jersey. It was built in 1972, so it is 53 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 6 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 1,000 vehicles a day, roughly 1% of them trucks, projected to reach 1,220 by 2044. The structure is 25 ft (7.6 m) long and 44 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesColony Avenue
CrossesMill Brook
Location.2 MI E of Spring Vally R
RouteCity Street 0
CountyBergen County
StateNew Jersey
Coordinates41.04362, -74.04929
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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46 US tons
Inventory rating27 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20 + Mod
Structure length25 ft (7.6 m)
Longest span20 ft (6.1 m)
Deck width44 ft (13.4 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,000 (2024)
Projected traffic1,220 by 2044
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Colony Avenue over Mill Brook built?

It was built in 1972, making it 53 years old in 2025.

What condition is Colony Avenue over Mill 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 April 2024.

How much traffic does Colony Avenue over Mill Brook carry?

About 1,000 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Colony Avenue over Mill Brook?

The structure is 25 ft (7.6 m) long with a longest span of 20 ft (6.1 m) and a deck 44 ft wide.

Who owns Colony Avenue over Mill Brook?

It is owned by the County Highway Agency.