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Rte I90 over Walnut Creek

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

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

Rte I90 over Walnut Creek in Chautauqua County, New York, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the superstructure, rated 6 (satisfactory condition) on the 0-9 scale.
It was built in 1956 and reconstructed in 2015, making it 69 years old at the 2025 inventory.
It carries about 11,375 vehicles a day (traffic count year 2020).
It is one of 269 of the 559 inventoried bridges in Chautauqua County rated fair (48.1%); 52 (9.3%) 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.

Component ratings


Structure	Continuous concrete deck arch
Length	about 255 ft
Location	4.3 Mi SW of Silvr Ck Int
NBI structure number	000000005511512
Condition class	Fair

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