US Bridges

Spruce Run Road over Spruce Run

Fair

Hunterdon County, New Jersey · 0.7 MI North of CR 628 · Structure no. 100L044

Built
1987
38 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
44 ft
1 main span
Daily traffic
222
2023 count
Owner
County
County Highway Agency

About this bridge

Spruce Run Road over Spruce Run is a wood or timber stringer/multi-beam or girder carrying Spruce Run Road over Spruce Run in Hunterdon County, New Jersey. It was built in 1987, so it is 38 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 222 vehicles a day, roughly 3% of them trucks, projected to reach 266 by 2043. The structure is 44 ft (13.4 m) long and 28 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesSpruce Run Road
CrossesSpruce Run
Location0.7 MI North of CR 628
CountyHunterdon County
StateNew Jersey
Coordinates40.71631, -74.93027
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 alignment7: Better than present minimum criteria
Operating rating38 US tons
Inventory rating23 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadUnknown
Structure length44 ft (13.4 m)
Longest span41 ft (12.5 m)
Deck width28 ft (8.4 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic222 (2023)
Projected traffic266 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Spruce Run Road over Spruce Run built?

It was built in 1987, making it 38 years old in 2025.

What condition is Spruce Run Road over Spruce Run 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 March 2023.

How much traffic does Spruce Run Road over Spruce Run carry?

About 222 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Spruce Run Road over Spruce Run?

The structure is 44 ft (13.4 m) long with a longest span of 41 ft (12.5 m) and a deck 28 ft wide.

Who owns Spruce Run Road over Spruce Run?

It is owned by the County Highway Agency.