T470 Black Bear Rd over Conowingo Creek
Lancaster County, Pennsylvania · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- T470 Black Bear Rd over Conowingo Creek in Lancaster County, Pennsylvania, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the superstructure, rated 4 (poor condition) on the 0-9 scale.
- It was built in 1950, making it 75 years old at the 2025 inventory.
- It carries about 155 vehicles a day (traffic count year 2011).
- Its listed owner is a town or township highway agency.
- It is one of 87 of the 801 inventoried bridges in Lancaster County rated poor (10.9%); 87 (10.9%) are rated poor.
- Its traffic status in the 2025 inventory is closed to all traffic (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated July 2023, on a 24-month routine inspection cycle.
- A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.
View this bridge on a map → (39.81381, -76.17322)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 5 | 5 | Fair condition |
| Superstructure | 4 | 4 | Poor condition |
| Substructure | 4 | 4 | Poor condition |
Bridge details
| Structure | Steel stringer or multi-beam girder |
| Length | about 35 ft |
| Location | 500 East of Hensel Rd |
| NBI structure number | 000000000021907 |
| Condition class | Poor |
| Traffic status (item 41) | Closed to all traffic |
| Last inspection (item 90) | July 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.