Swain Hill Road over Trib East Valley
Allegany County, New York · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Swain Hill Road over Trib East Valley in Allegany County, New York, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 7 (good condition) on the 0-9 scale.
- It was built in 1989, making it 36 years old at the 2025 inventory.
- It carries about 216 vehicles a day (traffic count year 2020).
- Its listed owner is a town or township highway agency.
- It is one of 153 of the 403 inventoried bridges in Allegany County rated good (38.0%); 27 (6.7%) are rated poor.
- A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.
View this bridge on a map → (42.16809, -77.80663)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 8 | Very good condition |
| Superstructure | 8 | Very good condition |
| Substructure | 7 | Good condition |
Bridge details
| Structure | Timber slab |
| Length | about 29 ft |
| Location | 1.3 Mi W Andover |
| NBI structure number | 000000002254610 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the New York department of transportation.
Busiest bridges in Allegany County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Rte 417 over Crowner Brook | 2007 | 11,348 | Good |
| Rte 417 over Genesee River | 1988 | 11,348 | Fair |
| Rte 19 over Dyke Creek | 1975 | 7,848 | Fair |
| County Road 20 over N Br Van Campen C | 2010 | 7,246 | Good |
| Rte 19 over Vandermark Creek | 1996 | 6,706 | Fair |
| Rte 21 over Karr Valley Creek | 1990 | 6,130 | Fair |
All bridges nearby: Allegany County, NY bridge conditions · every bridge in Allegany County · New York bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.