SR 3012(LR 39046) over Iron Run
Lehigh County, Pennsylvania · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- SR 3012(LR 39046) over Iron Run in Lehigh County, Pennsylvania, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
- It was built in 1960, making it 65 years old at the 2025 inventory.
- It carries about 9,813 vehicles a day (traffic count year 2024).
- Its listed owner is the state highway agency.
- It is one of 113 of the 378 inventoried bridges in Lehigh County rated good (29.9%); 41 (10.8%) are rated poor.
- A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.
View this bridge on a map → (40.56897, -75.62718)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 7 | Good condition |
| Superstructure | 8 | Very good condition |
| Substructure | 7 | Good condition |
Bridge details
| Structure | Prestressed concrete multiple box beam |
| Length | about 42 ft |
| Location | Schantz Road |
| NBI structure number | 000000000023348 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Pennsylvania department of transportation.
Busiest bridges in Lehigh County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-78(LR 1045) over Pa 100(LR 672) | 1958 | 126,705 | Fair |
| I 78(LR 1045) over Norfolk/southern RR | 1988 | 126,705 | Fair |
| I-78 (lr 1045) over SR 3009 (ruppsville Rd) | 1988 | 126,705 | Good |
| US 22(LR 771) over T-638(irving St.) | 1952 | 92,608 | Good |
| US 22 (lr 771) over Lehigh River | 2017 | 92,608 | Good |
| US 22 (lr 771) over Leh. Canal SR 1007 NSR | 2017 | 92,608 | Good |
All bridges nearby: Lehigh County, PA bridge conditions · every bridge in Lehigh County · Pennsylvania bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.