US Bridges

Furnace Road over Black River

Fair

Morris County, New Jersey · 0.6MLS.NE Route 24 · Structure no. 1401149

Built
1980
45 years old, rebuilt 1996
Condition
Fair
inspected July 2023
Type
Slab
Prestressed Concrete
Length
38 ft
1 main span
Daily traffic
1,815
2023 count
Owner
County
County Highway Agency

About this bridge

Furnace Road over Black River is a prestressed concrete slab carrying Furnace Road over Black River in Morris County, New Jersey. It was built in 1980 and reconstructed in 1996, so it is 45 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 1,815 vehicles a day, roughly 3% of them trucks, projected to reach 2,214 by 2043. The structure is 38 ft (11.6 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesFurnace Road
CrossesBlack River
Location0.6MLS.NE Route 24
RouteCity Street 0
CountyMorris County
StateNew Jersey
Coordinates40.78739, -74.71992
Functional classRural 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.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating110.1 US tons
Inventory rating64 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length38 ft (11.6 m)
Longest span33 ft (10.1 m)
Deck width31 ft (9.6 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,815 (2023)
Projected traffic2,214 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Furnace Road over Black River built?

It was built in 1980, making it 45 years old in 2025. It was reconstructed in 1996.

What condition is Furnace Road over Black River 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 July 2023.

How much traffic does Furnace Road over Black River carry?

About 1,815 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Furnace Road over Black River?

The structure is 38 ft (11.6 m) long with a longest span of 33 ft (10.1 m) and a deck 31 ft wide.

Who owns Furnace Road over Black River?

It is owned by the County Highway Agency.