US Bridges

Southfield Road over Bear Brook

Fair

Mercer County, New Jersey · 0.67 MI South of CR 571 · Structure no. 1107628

Built
1997
28 years old
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
38 ft
1 main span
Daily traffic
4,290
2023 count
Owner
County
County Highway Agency

About this bridge

Southfield Road over Bear Brook is a steel stringer/multi-beam or girder carrying Southfield Road over Bear Brook in Mercer County, New Jersey. It was built in 1997, so it is 28 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 4,290 vehicles a day, roughly 3% of them trucks, projected to reach 5,131 by 2043. The structure is 38 ft (11.6 m) long and 39 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesSouthfield Road
CrossesBear Brook
Location0.67 MI South of CR 571
RouteCity Street 0
CountyMercer County
StateNew Jersey
Coordinates40.28191, -74.58774
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to 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 alignment8: Equal to present desirable criteria
Operating rating55 US tons
Inventory rating33 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length38 ft (11.6 m)
Longest span33 ft (10.1 m)
Deck width39 ft (11.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,290 (2023)
Projected traffic5,131 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 Southfield Road over Bear Brook built?

It was built in 1997, making it 28 years old in 2025.

What condition is Southfield Road over Bear 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 February 2023.

How much traffic does Southfield Road over Bear Brook carry?

About 4,290 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Southfield Road over Bear Brook?

The structure is 38 ft (11.6 m) long with a longest span of 33 ft (10.1 m) and a deck 39 ft wide.

Who owns Southfield Road over Bear Brook?

It is owned by the County Highway Agency.