US Bridges

Taylors Mill Road over I-78

Fair

Hunterdon County, New Jersey · 6.7 MI East of Rt 31 JCT · Structure no. 1018165

Built
1965
60 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
172 ft
2 main spans
Daily traffic
545
2024 count
Owner
State
State Highway Agency

About this bridge

Taylors Mill Road over I-78 is a prestressed concrete stringer/multi-beam or girder carrying Taylors Mill Road over I-78 in Hunterdon County, New Jersey. It was built in 1965, so it is 60 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 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 545 vehicles a day, roughly 3% of them trucks, projected to reach 654 by 2044. The structure is 172 ft (52.4 m) long and 40 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesTaylors Mill Road
CrossesI-78
Location6.7 MI East of Rt 31 JCT
RouteCity Street 0
Coordinates40.6507, -74.76679
Functional classUrban Local

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating78 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length172 ft (52.4 m)
Longest span83 ft (25.3 m)
Deck width40 ft (12.3 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic545 (2024)
Projected traffic654 by 2044
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Taylors Mill Road over I-78 built?

It was built in 1965, making it 60 years old in 2025.

What condition is Taylors Mill Road 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 Taylors Mill Road over I-78 carry?

About 545 vehicles per day (2024 count), of which roughly 3% are trucks.

How long is Taylors Mill Road over I-78?

The structure is 172 ft (52.4 m) long with a longest span of 83 ft (25.3 m) and a deck 40 ft wide.

Who owns Taylors Mill Road over I-78?

It is owned by the State Highway Agency.