US Bridges

Millbrook Court over Sawmill Brook

Good

Middlesex County, New Jersey · 0.6 Miles North of CR606 · Structure no. 123B233

Built
1998
27 years old
Condition
Good
inspected April 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
54 ft
1 main span
Daily traffic
8
2023 count
Owner
County
County Highway Agency

About this bridge

Millbrook Court over Sawmill Brook is a prestressed concrete box beam or girders - multiple carrying Millbrook Court over Sawmill Brook in Middlesex County, New Jersey. It was built in 1998, so it is 27 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 8 vehicles a day, roughly 1% of them trucks, projected to reach 10 by 2043. The structure is 54 ft (16.5 m) long and 32 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesMillbrook Court
CrossesSawmill Brook
Location0.6 Miles North of CR606
RouteCity Street 0
Coordinates40.44994, -74.40924
Functional classUrban Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length54 ft (16.5 m)
Longest span50 ft (15.2 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8 (2023)
Projected traffic10 by 2043
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Millbrook Court over Sawmill Brook built?

It was built in 1998, making it 27 years old in 2025.

What condition is Millbrook Court over Sawmill Brook in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2023.

How much traffic does Millbrook Court over Sawmill Brook carry?

About 8 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is Millbrook Court over Sawmill Brook?

The structure is 54 ft (16.5 m) long with a longest span of 50 ft (15.2 m) and a deck 32 ft wide.

Who owns Millbrook Court over Sawmill Brook?

It is owned by the County Highway Agency.