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Rte 3 over Mohawk Adir & No

Lewis County, New York · rated Good in the 2025 National Bridge Inventory

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

Rte 3 over Mohawk Adir & No in Lewis County, New York, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the superstructure, rated 7 (good condition) on the 0-9 scale.
It was built in 1960 and reconstructed in 2019, making it 65 years old at the 2025 inventory.
It carries about 2,690 vehicles a day (traffic count year 2021).
Its listed owner is the state highway agency.
It is one of 59 of the 169 inventoried bridges in Lewis County rated good (34.9%); 26 (15.4%) 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.

Component ratings


Structure	Steel stringer or multi-beam girder
Length	about 58 ft
Location	6.7 Mi NE Jct SH3 & SH 3A
NBI structure number	000000001000630
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
Rte 12 over Mill Creek	1913	11,108	Fair
East State Street over Mill Creek	1963	6,160	Fair
Rte 12 over Mohawk Adirondack & Nort	1950	5,391	Fair
Rte 12 over Whetstone Creek	1989	5,059	Fair
Rte 12 over Roaring Brook	1989	5,059	Fair
Rte 12 over House Creek	1964	4,976	Good