Walnut St (PA 23) over Millcross Rd (T-548)
Lancaster County, Pennsylvania · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Walnut St (PA 23) over Millcross Rd (T-548) in Lancaster County, Pennsylvania, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 8 (very good condition) on the 0-9 scale.
- It was built in 2023, making it 2 years old at the 2025 inventory.
- It carries about 300 vehicles a day (traffic count year 2023).
- Its listed owner is the state highway agency.
- It is one of 242 of the 801 inventoried bridges in Lancaster County rated good (30.2%); 87 (10.9%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- It does not appear under this structure number in the 2024 inventory (a new or renumbered structure).
- Its most recent inspection on record is dated December 2023, on a 24-month routine inspection cycle.
- 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 → (40.059, -76.25488)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 8 | Very good condition |
| Superstructure | 9 | Excellent condition |
| Substructure | 8 | Very good condition |
Bridge details
| Structure | Continuous steel stringer or multi-beam girder |
| Length | about 166 ft |
| Location | Walnut St Extension |
| NBI structure number | 000000000068409 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | December 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 5: foundations stable, scour within the limits of the footing or piles |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Pennsylvania department of transportation.
Busiest bridges in Lancaster County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 30 ; SR 0030 over Fruitville Pk; SR 4011 | 2000 | 141,059 | Fair |
| US 30; SR 0030 over Conestoga River | 1953 | 114,612 | Fair |
| US 30; SR 0030 over Pa 23 Walnut St | 1992 | 114,612 | Fair |
| US 30 over Pitney Rd | 2002 | 114,612 | Good |
| US 30; SR 0030 over Homeland Drive | 2002 | 114,612 | Good |
| U.S. 30 SR0030 over Nor/south&amtrak | 2002 | 103,831 | Good |
All bridges nearby: Lancaster County, PA bridge conditions · every bridge in Lancaster County · Pennsylvania bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.