US Bridges

Klockner Road over Miry Run

Fair

Mercer County, New Jersey · 500 North of E. State ST · Structure no. 1100022

Built
1983
42 years old
Condition
Fair
inspected February 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
49 ft
1 main span
Daily traffic
4,700
2023 count
Owner
County
County Highway Agency

About this bridge

Klockner Road over Miry Run is a prestressed concrete box beam or girders - multiple carrying Klockner Road over Miry Run in Mercer County, New Jersey. It was built in 1983, so it is 42 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 5 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 4,700 vehicles a day, roughly 4% of them trucks, projected to reach 5,735 by 2043. The structure is 49 ft (14.9 m) long and 43 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesKlockner Road
CrossesMiry Run
Location500 North of E. State ST
RouteCity Street 0
CountyMercer County
StateNew Jersey
Coordinates40.24927, -74.71116
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 rating110.1 US tons
Inventory rating66 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length49 ft (14.9 m)
Longest span44 ft (13.4 m)
Deck width43 ft (13 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,700 (2023)
Projected traffic5,735 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 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 Klockner Road over Miry Run built?

It was built in 1983, making it 42 years old in 2025.

What condition is Klockner Road over Miry 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 February 2023.

How much traffic does Klockner Road over Miry Run carry?

About 4,700 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Klockner Road over Miry Run?

The structure is 49 ft (14.9 m) long with a longest span of 44 ft (13.4 m) and a deck 43 ft wide.

Who owns Klockner Road over Miry Run?

It is owned by the County Highway Agency.