Whipple Dam Road over Laurel Run
Huntingdon County, Pennsylvania · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Whipple Dam Road over Laurel Run in Huntingdon County, Pennsylvania, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1936 and reconstructed in 1984, making it 89 years old at the 2025 inventory.
- It carries about 50 vehicles a day (traffic count year 2024).
- It is one of 118 of the 239 inventoried bridges in Huntingdon County rated fair (49.4%); 24 (10.0%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated May 2024, on a 24-month routine inspection cycle.
- A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.
View this bridge on a map → (40.6826, -77.8659)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 6 | 6 | Satisfactory condition |
| Superstructure | 6 | 6 | Satisfactory condition |
| Substructure | 6 | 6 | Satisfactory condition |
Bridge details
| Structure | Steel stringer or multi-beam girder |
| Length | about 24 ft |
| Location | 500 W of Laurel Run Rd |
| NBI structure number | 000000000018971 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | May 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 4: foundations stable, field review says exposed foundations need protection |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Pennsylvania department of transportation.
Busiest bridges in Huntingdon County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Pa Tpk (I-76)WB over T-300 & Service Rd | 1969 | 21,197 | Poor |
| Pa Tpk (I-76) EB over T-300& Srvce.rd | 1969 | 21,197 | Fair |
| US 22 over Private Road | 1948 | 12,868 | Fair |
| US 22 over Pikes Run | 1988 | 12,868 | Good |
| US 22(POBSTOR) over US Silica Quarry Road | 1972 | 11,068 | Fair |
| US 22 over Trib.juniata River | 1948 | 10,982 | Fair |
All bridges nearby: Huntingdon County, PA bridge conditions · every bridge in Huntingdon County · Pennsylvania bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.