SR 8 Wattsburg Rd over over Alder Brook
Erie County, Pennsylvania · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- SR 8 Wattsburg Rd over over Alder Brook in Erie County, Pennsylvania, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1950, making it 75 years old at the 2025 inventory.
- It carries about 4,139 vehicles a day (traffic count year 2024).
- Its listed owner is the state highway agency.
- It is one of 235 of the 444 inventoried bridges in Erie County rated fair (52.9%); 42 (9.5%) are rated poor.
- 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 → (42.06029, -79.88194)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 7 | Good condition |
| Superstructure | 7 | Good condition |
| Substructure | 5 | Fair condition |
Bridge details
| Structure | Concrete tee beam |
| Length | about 39 ft |
| Location | Venango Township |
| NBI structure number | 000000000015853 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Pennsylvania department of transportation.
Busiest bridges in Erie County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| SR 90 Eb/wb over over Walnut Creek | 1959 | 36,476 | Fair |
| SR 90 Eb/wb over over Four Mile Creek | 1959 | 35,843 | Fair |
| SR 19 Peach St over over Walnut Creek | 1950 | 31,986 | Fair |
| SR 90 WB over over SR 0019 Peach St | 1996 | 22,023 | Good |
| SR 90 WB over over T-558 Old French Rd | 1996 | 22,023 | Good |
| SR 90 Eb/wb over over Twelvemile Creek | 1959 | 21,995 | Fair |
All bridges nearby: Erie County, PA bridge conditions · every bridge in Erie County · Pennsylvania bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.