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Rte 20A over Tonawanda Creek

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

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

Rte 20A over Tonawanda Creek in Wyoming 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 deck, rated 5 (fair condition) on the 0-9 scale.
It was built in 1985, making it 40 years old at the 2025 inventory.
It carries about 3,581 vehicles a day (traffic count year 2021).
Its listed owner is the state highway agency.
It is one of 75 of the 136 inventoried bridges in Wyoming County rated fair (55.1%); 21 (15.4%) 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	Prestressed concrete multiple box beam
Length	about 111 ft
Location	0.1 Mi W Jct Rts 20A + 98
NBI structure number	000000001016130
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 39 over Station Drive Arcade &	1976	12,235	Poor
Rte 98 over Clear Creek	1990	7,278	Fair
Rte 20A over Oatka Creek	1998	5,838	Good
Rte 20A over Stony Creek	2007	5,838	Good
Rte 19 over Relyea Creek	1950	5,691	Fair
Rte 19 over Oatka Creek	1961	5,691	Fair