US Bridges

Mowder Hill Road over Musconetcong River

Good

Hunterdon County, New Jersey · 0.2 Mi. West of CR 645 · Structure no. 10XXL95

Built
2002
23 years old
Condition
Good
inspected May 2023
Type
Truss - Thru
Steel
Length
80 ft
1 main span
Daily traffic
196
2023 count
Owner
County
County Highway Agency

About this bridge

Mowder Hill Road over Musconetcong River is a steel truss - thru carrying Mowder Hill Road over Musconetcong River in Hunterdon County, New Jersey. It was built in 2002, so it is 23 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 196 vehicles a day, roughly 3% of them trucks, projected to reach 236 by 2043. The structure is 80 ft (24.4 m) long and 27 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesMowder Hill Road
CrossesMusconetcong River
Location0.2 Mi. West of CR 645
Coordinates40.75414, -74.92753
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating55 US tons
Inventory rating33 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadHS 25 or greater
Structure length80 ft (24.4 m)
Longest span75 ft (22.9 m)
Deck width27 ft (8.2 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic196 (2023)
Projected traffic236 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 Mowder Hill Road over Musconetcong River built?

It was built in 2002, making it 23 years old in 2025.

What condition is Mowder Hill Road over Musconetcong River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2023.

How much traffic does Mowder Hill Road over Musconetcong River carry?

About 196 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Mowder Hill Road over Musconetcong River?

The structure is 80 ft (24.4 m) long with a longest span of 75 ft (22.9 m) and a deck 27 ft wide.

Who owns Mowder Hill Road over Musconetcong River?

It is owned by the County Highway Agency.