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Nh 9 Nh 10 Nh 12 over West Street

Cheshire County, New Hampshire · rated Good in the 2025 National Bridge Inventory

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

Nh 9 Nh 10 Nh 12 over West Street in Cheshire County, New Hampshire, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
It was built in 1967 and reconstructed in 2014, making it 58 years old at the 2025 inventory.
It carries about 16,222 vehicles a day (traffic count year 2023).
Its listed owner is the state highway agency.
It is one of 82 of the 194 inventoried bridges in Cheshire County rated good (42.3%); 22 (11.3%) 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 88 ft
Location	1.0 Mi to Keene Center
NBI structure number	013601200007600
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
Nh 12 NH101 over Ashuelot River Ped Trail	1961	22,780	Fair
Nh 9 over Ash Swamp Brook	2006	22,417	Good
Nh 12 over Beaver Brook	2019	17,831	Good
Nh 12 over Branch River	1994	17,831	Good
West Street over Ashuelot River	1952	16,605	Fair
Nh 12 over Troy Brook	1970	13,156	Fair