US Bridges

Pleasant Hill Road over Black River

Fair

Morris County, New Jersey · 3 Mi.So.Of Flanders G.C. · Structure no. 1401141

Built
1925
100 years old, rebuilt 1954
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
38 ft
1 main span
Daily traffic
2,416
2023 count
Owner
County
County Highway Agency

About this bridge

Pleasant Hill Road over Black River is a steel stringer/multi-beam or girder carrying Pleasant Hill Road over Black River in Morris County, New Jersey. It was built in 1925 and reconstructed in 1954, so it is 100 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 2,416 vehicles a day, roughly 3% of them trucks, projected to reach 2,947 by 2043. The structure is 38 ft (11.6 m) long and 34 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesPleasant Hill Road
CrossesBlack River
Location3 Mi.So.Of Flanders G.C.
RouteCity Street 0
CountyMorris County
StateNew Jersey
Coordinates40.80261, -74.69706
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.
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 inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating42 US tons
Inventory rating25 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length38 ft (11.6 m)
Longest span35 ft (10.7 m)
Deck width34 ft (10.5 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,416 (2023)
Projected traffic2,947 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$317,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Pleasant Hill Road over Black River built?

It was built in 1925, making it 100 years old in 2025. It was reconstructed in 1954.

What condition is Pleasant Hill 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 Pleasant Hill Road over Black River carry?

About 2,416 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Pleasant Hill Road over Black River?

The structure is 38 ft (11.6 m) long with a longest span of 35 ft (10.7 m) and a deck 34 ft wide.

Who owns Pleasant Hill Road over Black River?

It is owned by the County Highway Agency.