US Bridges

Buffalo Hollow RD over Raritan Valley Line

FairPosted for load

Hunterdon County, New Jersey · 3.05 MI NW NJ31 & I78 JCT · Structure no. 1061154

Built
2000
25 years old
Condition
Fair
inspected January 2023
Type
Truss - Thru
Steel
Length
44 ft
1 main span
Daily traffic
440
2023 count
Owner
Unknown
Unknown

About this bridge

Buffalo Hollow RD over Raritan Valley Line is a steel truss - thru carrying Buffalo Hollow RD over Raritan Valley Line in Hunterdon County, New Jersey. It was built in 2000, so it is 25 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. Its operating status is: posted for load restriction.

It carries about 440 vehicles a day, roughly 3% of them trucks, projected to reach 600 by 2043. The structure is 44 ft (13.4 m) long and 13 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesBuffalo Hollow RD
CrossesRaritan Valley Line
Location3.05 MI NW NJ31 & I78 JCT
RouteCity Street 0
CountyHunterdon County
StateNew Jersey
Coordinates40.67746, -74.91232
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating34 US tons
Inventory rating20 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckSteel plate
Main spans1
Design loadHS 20
Structure length44 ft (13.4 m)
Longest span40 ft (12.2 m)
Deck width13 ft (3.9 m)
Roadway width12 ft (3.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic440 (2023)
Projected traffic600 by 2043
Trucks3%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesRailroad
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerUnknown
Maintained byOther State 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 Buffalo Hollow RD over Raritan Valley Line built?

It was built in 2000, making it 25 years old in 2025.

What condition is Buffalo Hollow RD over Raritan Valley Line 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 January 2023.

How much traffic does Buffalo Hollow RD over Raritan Valley Line carry?

About 440 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Buffalo Hollow RD over Raritan Valley Line?

The structure is 44 ft (13.4 m) long with a longest span of 40 ft (12.2 m) and a deck 13 ft wide.

Who owns Buffalo Hollow RD over Raritan Valley Line?

It is owned by the Unknown and maintained by the Other State Agency.