US Bridges

Strimples Mill Rd. over Lockatong Creek

FairPosted for load

Hunterdon County, New Jersey · .8 Miles SW of CR 519 · Structure no. 10XX481

Built
1897
128 years old, rebuilt 2005
Condition
Fair
inspected July 2023
Type
Truss - Thru
Aluminum, Wrought Iron, or Cast Iron
Length
95 ft
1 main span
Daily traffic
126
2023 count
Owner
County
County Highway Agency

About this bridge

Strimples Mill Rd. over Lockatong Creek is a aluminum, wrought iron, or cast iron truss - thru carrying Strimples Mill Rd. over Lockatong Creek in Hunterdon County, New Jersey. It was built in 1897 and reconstructed in 2005, so it is 128 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. Its operating status is: posted for load restriction.

It carries about 126 vehicles a day, roughly 3% of them trucks, projected to reach 151 by 2043. The structure is 95 ft (29 m) long and 16 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesStrimples Mill Rd.
CrossesLockatong Creek
Location.8 Miles SW of CR 519
Coordinates40.43705, -75.01186
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating33 US tons
Inventory rating21.1 US tons

Structure

Structure typeTruss - Thru
MaterialAluminum, Wrought Iron, or Cast Iron
DeckCorrugated steel
Main spans1
Design loadOther
Structure length95 ft (29 m)
Longest span93 ft (28.3 m)
Deck width16 ft (4.9 m)
Roadway width15 ft (4.5 m)
Vertical clearance over deck13 ft (4 m)

Traffic and service

Average daily traffic126 (2023)
Projected traffic151 by 2043
Trucks3%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$2.1 million (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Strimples Mill Rd. over Lockatong Creek built?

It was built in 1897, making it 128 years old in 2025. It was reconstructed in 2005.

What condition is Strimples Mill Rd. over Lockatong 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 July 2023.

How much traffic does Strimples Mill Rd. over Lockatong Creek carry?

About 126 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Strimples Mill Rd. over Lockatong Creek?

The structure is 95 ft (29 m) long with a longest span of 93 ft (28.3 m) and a deck 16 ft wide.

Who owns Strimples Mill Rd. over Lockatong Creek?

It is owned by the County Highway Agency.