US Bridges

Hog Hollow Road over Nishisakawick Creek

Fair

Hunterdon County, New Jersey · 1/4 MI So of CR 513 · Structure no. 1000A65

Built
1981
44 years old
Condition
Fair
inspected May 2023
Type
Slab
Wood or Timber
Length
36 ft
1 main span
Daily traffic
1,550
2023 count
Owner
County
County Highway Agency

About this bridge

Hog Hollow Road over Nishisakawick Creek is a wood or timber slab carrying Hog Hollow Road over Nishisakawick Creek in Hunterdon County, New Jersey. It was built in 1981, so it is 44 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 1,550 vehicles a day, roughly 3% of them trucks, projected to reach 1,892 by 2043. The structure is 36 ft (11 m) long and 37 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesHog Hollow Road
CrossesNishisakawick Creek
Location1/4 MI So of CR 513
CountyHunterdon County
StateNew Jersey
Coordinates40.56808, -75.01306
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating47 US tons
Inventory rating31 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadUnknown
Structure length36 ft (11 m)
Longest span34 ft (10.4 m)
Deck width37 ft (11.3 m)
Roadway width31 ft (9.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,550 (2023)
Projected traffic1,892 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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Hog Hollow Road over Nishisakawick Creek built?

It was built in 1981, making it 44 years old in 2025.

What condition is Hog Hollow Road over Nishisakawick Creek 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 Hog Hollow Road over Nishisakawick Creek carry?

About 1,550 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Hog Hollow Road over Nishisakawick Creek?

The structure is 36 ft (11 m) long with a longest span of 34 ft (10.4 m) and a deck 37 ft wide.

Who owns Hog Hollow Road over Nishisakawick Creek?

It is owned by the County Highway Agency.