US Bridges

Muddy Run Road over Muddy Run

Fair

Hunterdon County, New Jersey · 0.3S of Barbertn Pt Bz RD · Structure no. 1000082

Built
1919
106 years old, rebuilt 2004
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
33 ft
1 main span
Daily traffic
44
2023 count
Owner
County
County Highway Agency

About this bridge

Muddy Run Road over Muddy Run is a steel stringer/multi-beam or girder carrying Muddy Run Road over Muddy Run in Hunterdon County, New Jersey. It was built in 1919 and reconstructed in 2004, so it is 106 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 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 44 vehicles a day, roughly 3% of them trucks, projected to reach 53 by 2043. The structure is 33 ft (10.1 m) long and 19 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesMuddy Run Road
CrossesMuddy Run
Location0.3S of Barbertn Pt Bz RD
RouteCity Street 0
CountyHunterdon County
StateNew Jersey
Coordinates40.48259, -75.01076
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
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 inspectionApril 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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating88 US tons
Inventory rating52 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length33 ft (10.1 m)
Longest span30 ft (9.1 m)
Deck width19 ft (5.8 m)
Roadway width18 ft (5.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic44 (2023)
Projected traffic53 by 2043
Trucks3%
Lanes on structure1
Traffic directionOne-lane bridge for two-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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Muddy Run Road over Muddy Run built?

It was built in 1919, making it 106 years old in 2025. It was reconstructed in 2004.

What condition is Muddy Run Road over Muddy 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 April 2023.

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

About 44 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Muddy Run Road over Muddy Run?

The structure is 33 ft (10.1 m) long with a longest span of 30 ft (9.1 m) and a deck 19 ft wide.

Who owns Muddy Run Road over Muddy Run?

It is owned by the County Highway Agency.