Diamond St (t-519) over Mountain Run
Clearfield County, Pennsylvania · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Diamond St (t-519) over Mountain Run in Clearfield County, Pennsylvania, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1900 and reconstructed in 2013, making it 125 years old at the 2025 inventory.
- It carries about 45 vehicles a day (traffic count year 2021).
- Its listed owner is a town or township highway agency.
- It is one of 138 of the 294 inventoried bridges in Clearfield County rated fair (46.9%); 42 (14.3%) 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 September 2023, 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 → (41.19449, -78.60094)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 7 | 7 | Good condition |
| Substructure | 6 | 6 | Satisfactory condition |
Bridge details
| Structure | Timber |
| Length | about 29 ft |
| Location | 0.5 Mi N of SR 255 |
| NBI structure number | 000000000011922 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | September 2023 |
| 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 Clearfield County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| SR 80-i 80 over Moravian Run | 1967 | 19,286 | Fair |
| SR 879-pa 879 over Wolf Run | 1974 | 14,732 | Fair |
| SR 322- US 322 over Laurel Run | 2017 | 12,902 | Good |
| US 322 over Little Laurel Run | 2021 | 12,902 | Good |
| SR 80-i 80 over W Br Susquehanna River | 1967 | 12,800 | Good |
| SR 80-i 80 over SR 879-pa 879 | 2004 | 12,800 | Good |
All bridges nearby: Clearfield County, PA bridge conditions · every bridge in Clearfield County · Pennsylvania bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.