US Bridges

Opie Road over S. Branch Raritan River

Good

Somerset County, New Jersey · South of Riverside Drive · Structure no. 18C0605

Built
2001
24 years old
Condition
Good
inspected October 2023
Type
Truss - Thru
Steel
Length
176 ft
2 main spans
Daily traffic
1,895
2023 count
Owner
County
County Highway Agency

About this bridge

Opie Road over S. Branch Raritan River is a steel truss - thru carrying Opie Road over S. Branch Raritan River in Somerset County, New Jersey. It was built in 2001, so it is 24 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 1,895 vehicles a day, roughly 1% of them trucks, projected to reach 2,274 by 2043. The structure is 176 ft (53.6 m) long and 32 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesOpie Road
CrossesS. Branch Raritan River
LocationSouth of Riverside Drive
RouteCity Street 0
Coordinates40.51793, -74.72142
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating97 US tons
Inventory rating58 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length176 ft (53.6 m)
Longest span85 ft (25.9 m)
Deck width32 ft (9.8 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,895 (2023)
Projected traffic2,274 by 2043
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Opie Road over S. Branch Raritan River built?

It was built in 2001, making it 24 years old in 2025.

What condition is Opie Road over S. Branch Raritan River 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 October 2023.

How much traffic does Opie Road over S. Branch Raritan River carry?

About 1,895 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is Opie Road over S. Branch Raritan River?

The structure is 176 ft (53.6 m) long with a longest span of 85 ft (25.9 m) and a deck 32 ft wide.

Who owns Opie Road over S. Branch Raritan River?

It is owned by the County Highway Agency.