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Summit Avenue over Trib Chautauqua L

Chautauqua County, New York · rated Poor in the 2025 National Bridge Inventory

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled August 20, 2026

Summit Avenue over Trib Chautauqua L in Chautauqua County, New York, is rated in poor condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the substructure, rated 4 (poor condition) on the 0-9 scale.
It was built in 1940, making it 85 years old at the 2025 inventory.
It carries about 2,366 vehicles a day (traffic count year 2021).
Its listed owner is the county highway agency.
It is one of 52 of the 559 inventoried bridges in Chautauqua County rated poor (9.3%); 52 (9.3%) are rated poor.
A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.

Component ratings

Source: FHWA National Bridge Inventory, 2025 data as reported by the New York department of transportation.

Bridge	Built	Vehicles/day	Condition
Rte I90 over Cattaraugus Creek	1954	24,417	Fair
Rte I90 over Buffalo Rd	1956	24,362	Fair
Rte I90 over Scott Creek	1956	22,749	Fair
Rte I90 over Beaver Creek	1956	22,749	Fair
Rte 5 over Cattaraugus Creek	2015	17,962	Good
Rte I90 over Slippery Rock Creek	1958	16,888	Fair