US Bridges

Davidsons Mill Rd. over Lawrence Brook

Fair

Middlesex County, New Jersey · 0.4 MI S of US 130 JCT · Structure no. 124B031

Built
2000
25 years old
Condition
Fair
inspected June 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
47 ft
1 main span
Daily traffic
2,080
2023 count
Owner
County
County Highway Agency

About this bridge

Davidsons Mill Rd. over Lawrence Brook is a prestressed concrete box beam or girders - multiple carrying Davidsons Mill Rd. over Lawrence Brook in Middlesex County, New Jersey. It was built in 2000, so it is 25 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 2,080 vehicles a day, roughly 3% of them trucks, projected to reach 2,538 by 2043. The structure is 47 ft (14.3 m) long and 40 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesDavidsons Mill Rd.
CrossesLawrence Brook
Location0.4 MI S of US 130 JCT
RouteCity Street 0
CountyMiddlesex County
StateNew Jersey
Coordinates40.41636, -74.4937
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 protection8 Very GoodNo problems noted.
Last inspectionJune 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 adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating93 US tons
Inventory rating56 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length47 ft (14.3 m)
Longest span44 ft (13.4 m)
Deck width40 ft (12.1 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,080 (2023)
Projected traffic2,538 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 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 Lawrence Brook built?

It was built in 2000, making it 25 years old in 2025.

What condition is Davidsons Mill Rd. over Lawrence 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 June 2023.

How much traffic does Davidsons Mill Rd. over Lawrence Brook carry?

About 2,080 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Davidsons Mill Rd. over Lawrence Brook?

The structure is 47 ft (14.3 m) long with a longest span of 44 ft (13.4 m) and a deck 40 ft wide.

Who owns Davidsons Mill Rd. over Lawrence Brook?

It is owned by the County Highway Agency.