US Bridges

Southard Street over US 1 and Conrail

Good

Mercer County, New Jersey · 0.23 MI N of Perry St. · Structure no. 1100049

Built
2006
19 years old
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
374 ft
3 main spans
Daily traffic
9,730
2023 count
Owner
County
County Highway Agency

About this bridge

Southard Street over US 1 and Conrail is a steel continuous stringer/multi-beam or girder carrying Southard Street over US 1 and Conrail in Mercer County, New Jersey. It was built in 2006, so it is 19 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 9,730 vehicles a day, roughly 4% of them trucks, projected to reach 11,637 by 2043. The structure is 374 ft (114 m) long and 54 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSouthard Street
CrossesUS 1 and Conrail
Location0.23 MI N of Perry St.
RouteCity Street 0
Coordinates40.22767, -74.75617
Functional classUrban Minor Arterial

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating47.8 US tons
Inventory rating36.8 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length374 ft (114 m)
Longest span144 ft (43.9 m)
Deck width54 ft (16.4 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,730 (2023)
Projected traffic11,637 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway and railroad
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 statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Southard Street over US 1 and Conrail built?

It was built in 2006, making it 19 years old in 2025.

What condition is Southard Street over US 1 and Conrail 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 March 2023.

How much traffic does Southard Street over US 1 and Conrail carry?

About 9,730 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Southard Street over US 1 and Conrail?

The structure is 374 ft (114 m) long with a longest span of 144 ft (43.9 m) and a deck 54 ft wide.

Who owns Southard Street over US 1 and Conrail?

It is owned by the County Highway Agency.