US Bridges

US 1 & 9 over I-78

Fair

Essex County, New Jersey · 0.8 MI N of 1-9-21-22 JCT · Structure no. 0703150

Built
1970
55 years old, rebuilt 1999
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
432 ft
6 main spans
Daily traffic
137,135
2024 count
Owner
State
State Highway Agency

About this bridge

US 1 & 9 over I-78 is a steel stringer/multi-beam or girder carrying US 1 & 9 over I-78 in Essex County, New Jersey. It was built in 1970 and reconstructed in 1999, so it is 55 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 137,135 vehicles a day, roughly 5% of them trucks, projected to reach 167,331 by 2044. The structure is 432 ft (131.7 m) long and 158 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 1 & 9
CrossesI-78
Location0.8 MI N of 1-9-21-22 JCT
RouteU.S. Route 1
Coordinates40.70929, -74.16092
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating82 US tons
Inventory rating49.1 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length432 ft (131.7 m)
Longest span102 ft (31.1 m)
Deck width158 ft (48.3 m)
Roadway width147 ft (44.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic137,135 (2024)
Projected traffic167,331 by 2044
Trucks5%
Lanes on structure9
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
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 statusHistorical significance not determinable at this time
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$2 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 1 & 9 over I-78 built?

It was built in 1970, making it 55 years old in 2025. It was reconstructed in 1999.

What condition is US 1 & 9 over I-78 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 April 2024.

How much traffic does US 1 & 9 over I-78 carry?

About 137,135 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is US 1 & 9 over I-78?

The structure is 432 ft (131.7 m) long with a longest span of 102 ft (31.1 m) and a deck 158 ft wide.

Who owns US 1 & 9 over I-78?

It is owned by the State Highway Agency.