US Bridges

Davidsons Mill Rd. over Oakleys Brook

Fair

Middlesex County, New Jersey · 0.2 Mile East of US 130 · Structure no. 124B034

Built
2005
20 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
27 ft
1 main span
Daily traffic
2,077
2023 count
Owner
County
County Highway Agency

About this bridge

Davidsons Mill Rd. over Oakleys Brook is a prestressed concrete stringer/multi-beam or girder carrying Davidsons Mill Rd. over Oakleys Brook in Middlesex County, New Jersey. It was built in 2005, so it is 20 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 2,077 vehicles a day, roughly 3% of them trucks, projected to reach 2,534 by 2043. The structure is 27 ft (8.2 m) long and 40 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesDavidsons Mill Rd.
CrossesOakleys Brook
Location0.2 Mile East of US 130
RouteCity Street 0
CountyMiddlesex County
StateNew Jersey
Coordinates40.41822, -74.49783
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 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 evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be 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 rating110.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length27 ft (8.2 m)
Longest span23 ft (7 m)
Deck width40 ft (12.1 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,077 (2023)
Projected traffic2,534 by 2043
Trucks3%
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 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 Davidsons Mill Rd. over Oakleys Brook built?

It was built in 2005, making it 20 years old in 2025.

What condition is Davidsons Mill Rd. over Oakleys 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 Davidsons Mill Rd. over Oakleys Brook carry?

About 2,077 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Davidsons Mill Rd. over Oakleys Brook?

The structure is 27 ft (8.2 m) long with a longest span of 23 ft (7 m) and a deck 40 ft wide.

Who owns Davidsons Mill Rd. over Oakleys Brook?

It is owned by the County Highway Agency.