US Bridges

Bernard Avenue over Mill Brook

Fair

Middlesex County, New Jersey · 350FT NE of I95/CR531 · Structure no. 121B112

Built
1950
75 years old
Condition
Fair
inspected March 2023
Type
Culvert
Concrete
Length
24 ft
2 main spans
Daily traffic
693
2023 count
Owner
County
County Highway Agency

About this bridge

Bernard Avenue over Mill Brook is a concrete culvert carrying Bernard Avenue over Mill Brook in Middlesex County, New Jersey. It was built in 1950, so it is 75 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 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 693 vehicles a day, roughly 1% of them trucks, projected to reach 846 by 2043. The structure is 24 ft (7.3 m) long and 50 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesBernard Avenue
CrossesMill Brook
Location350FT NE of I95/CR531
RouteCity Street 0
CountyMiddlesex County
StateNew Jersey
Coordinates40.52161, -74.35461
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57 US tons
Inventory rating34 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length24 ft (7.3 m)
Longest span12 ft (3.7 m)
Deck width50 ft (15.2 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic693 (2023)
Projected traffic846 by 2043
Trucks1%
Lanes on structure2
Traffic directionTwo-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 statusHistorical significance not determinable at this time
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$40,000 (2019 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Bernard Avenue over Mill Brook built?

It was built in 1950, making it 75 years old in 2025.

What condition is Bernard 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 March 2023.

How much traffic does Bernard Avenue over Mill Brook carry?

About 693 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is Bernard Avenue over Mill Brook?

The structure is 24 ft (7.3 m) long with a longest span of 12 ft (3.7 m) and a deck 50 ft wide.

Who owns Bernard Avenue over Mill Brook?

It is owned by the County Highway Agency.