US Bridges

Executive Avenue over Mill Brook

Fair

Middlesex County, New Jersey · 0.62 Miles E. of Mill RD · Structure no. 121B133

Built
2012
13 years old
Condition
Fair
inspected November 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
50 ft
1 main span
Daily traffic
1,922
2023 count
Owner
County
County Highway Agency

About this bridge

Executive Avenue over Mill Brook is a prestressed concrete box beam or girders - multiple carrying Executive Avenue over Mill Brook in Middlesex County, New Jersey. It was built in 2012, so it is 13 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 1,922 vehicles a day, roughly 1% of them trucks, projected to reach 2,345 by 2043. The structure is 50 ft (15.2 m) long and 40 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesExecutive Avenue
CrossesMill Brook
Location0.62 Miles E. of Mill RD
RouteCity Street 0
CountyMiddlesex County
StateNew Jersey
Coordinates40.49547, -74.38112
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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating69 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length50 ft (15.2 m)
Longest span45 ft (13.7 m)
Deck width40 ft (12.1 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,922 (2023)
Projected traffic2,345 by 2043
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.7 mi (6 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 Executive Avenue over Mill Brook built?

It was built in 2012, making it 13 years old in 2025.

What condition is Executive 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 November 2023.

How much traffic does Executive Avenue over Mill Brook carry?

About 1,922 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is Executive Avenue over Mill Brook?

The structure is 50 ft (15.2 m) long with a longest span of 45 ft (13.7 m) and a deck 40 ft wide.

Who owns Executive Avenue over Mill Brook?

It is owned by the County Highway Agency.