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Fee Tpk N&S Ramps over Salmon Brook

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

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

Fee Tpk N&S Ramps over Salmon Brook in Hillsborough 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 culvert, rated 7 (good condition) on the 0-9 scale.
It was built in 1955 and reconstructed in 1996, making it 70 years old at the 2025 inventory.
It carries about 128,889 vehicles a day (traffic count year 2023).
It is one of 201 of the 385 inventoried bridges in Hillsborough County rated good (52.2%); 31 (8.1%) 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

Component	Rating (2025)	FHWA scale meaning
Culvert	7	Good condition

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

Bridge	Built	Vehicles/day	Condition
Fee Tpk over Greeley Street	1993	78,063	Good
Fee Tpk over Souhegan River	1953	75,081	Good
Fee Tpk over Baboosic Brook	1954	75,081	Good
US 3 Fee Tpk NB over Nashua River	1955	73,979	Fair
US 3 Fee Tpk SB over Nashua River	1959	71,221	Good
I-293 Fee Tpk over N Br Piscataquog River	2016	69,164	Good