US Bridges

US 1 NB over Raritan River &local Rds

Fair

Middlesex County, New Jersey · 0.5 MI N of Rt 18 & 1 JCT · Structure no. 1203150

Built
1929
96 years old, rebuilt 1975
Condition
Fair
inspected May 2023
Type
Arch - Deck
Concrete
Length
1,902 ft
6 main spans
Daily traffic
61,830
2023 count
Owner
State
State Highway Agency

About this bridge

US 1 NB over Raritan River &local Rds is a concrete arch - deck carrying US 1 NB over Raritan River &local Rds in Middlesex County, New Jersey. It was built in 1929 and reconstructed in 1975, so it is 96 years old, older 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 5 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 61,830 vehicles a day, roughly 4% of them trucks, projected to reach 74,196 by 2043. The structure is 1,902 ft (579.7 m) long and 66 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesUS 1 NB
CrossesRaritan River &local Rds
Location0.5 MI N of Rt 18 & 1 JCT
RouteU.S. Route 1
CountyMiddlesex County
StateNew Jersey
Coordinates40.48975, -74.41335
Functional classUrban Other Principal Arterial

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating75.9 US tons
Inventory rating45 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckConcrete, cast-in-place
Main spans6 (+9 approach)
Design loadUnknown
Structure length1,902 ft (579.7 m)
Longest span202 ft (61.6 m)
Deck width66 ft (20 m)
Roadway width50 ft (15.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic61,830 (2023)
Projected traffic74,196 by 2043
Trucks4%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesHighway and waterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was US 1 NB over Raritan River &local Rds built?

It was built in 1929, making it 96 years old in 2025. It was reconstructed in 1975.

What condition is US 1 NB over Raritan River &local Rds 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 May 2023.

How much traffic does US 1 NB over Raritan River &local Rds carry?

About 61,830 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is US 1 NB over Raritan River &local Rds?

The structure is 1,902 ft (579.7 m) long with a longest span of 202 ft (61.6 m) and a deck 66 ft wide.

Who owns US 1 NB over Raritan River &local Rds?

It is owned by the State Highway Agency.