Rte 318 over Black Brook
Seneca County, New York · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Rte 318 over Black Brook in Seneca County, New York, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1962, making it 63 years old at the 2025 inventory.
- It carries about 8,694 vehicles a day (traffic count year 2021).
- Its listed owner is the state highway agency.
- It is one of 25 of the 60 inventoried bridges in Seneca County rated fair (41.7%); 16 (26.7%) 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 → (42.953, -76.80953)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 5 | Fair condition |
Bridge details
| Structure | Aluminum or iron culvert |
| Length | about 29 ft |
| Location | 1.9 Mi N of Seneca Falls |
| NBI structure number | 000000001074340 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the New York department of transportation.
Busiest bridges in Seneca County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Rte I90 over Old Seneca River | 1954 | 30,538 | Fair |
| Rte I90 over Black Brook | 1953 | 30,538 | Fair |
| Rte I90 over Cayuga-seneca Canal | 1953 | 16,708 | Fair |
| Rte I90 over Seneca River | 1953 | 15,269 | Fair |
| Rte 5 over Cay & Sen Canal | 1932 | 12,332 | Poor |
| Rte 96A over Cayuga-seneca Canal | 1962 | 9,979 | Fair |
All bridges nearby: Seneca County, NY bridge conditions · every bridge in Seneca County · New York bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.