US Bridges

SR 3012(LR 39046) over Iron Run

Good

Lehigh County, Pennsylvania · Schantz Road · Structure no. 000000000023348

Built
1960
65 years old
Condition
Good
inspected June 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
43 ft
1 main span
Daily traffic
9,813
2024 count
Owner
State
State Highway Agency

About this bridge

SR 3012(LR 39046) over Iron Run is a prestressed concrete box beam or girders - multiple carrying SR 3012(LR 39046) over Iron Run in Lehigh County, Pennsylvania. It was built in 1960, so it is 65 years old, older than the Pennsylvania average of 54.8 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 9,813 vehicles a day, roughly 9% of them trucks, projected to reach 11,183 by 2032. The structure is 43 ft (13.1 m) long and 35 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesSR 3012(LR 39046)
CrossesIron Run
LocationSchantz Road
RouteState Highway 0
CountyLehigh County
StatePennsylvania
Coordinates40.56897, -75.62718
Functional classUrban Minor Arterial

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64 US tons
Inventory rating17 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length43 ft (13.1 m)
Longest span41 ft (12.5 m)
Deck width35 ft (10.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,813 (2024)
Projected traffic11,183 by 2032
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$390,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 3012(LR 39046) over Iron Run built?

It was built in 1960, making it 65 years old in 2025.

What condition is SR 3012(LR 39046) over Iron Run 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 June 2023.

How much traffic does SR 3012(LR 39046) over Iron Run carry?

About 9,813 vehicles per day (2024 count), of which roughly 9% are trucks.

How long is SR 3012(LR 39046) over Iron Run?

The structure is 43 ft (13.1 m) long with a longest span of 41 ft (12.5 m) and a deck 35 ft wide.

Who owns SR 3012(LR 39046) over Iron Run?

It is owned by the State Highway Agency.