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I 91 SB over Hwy River St

Franklin County, Massachusetts · rated Fair in the 2025 National Bridge Inventory

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

I 91 SB over Hwy River St in Franklin County, Massachusetts, 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 1960 and reconstructed in 1977, making it 65 years old at the 2025 inventory.
It carries about 10,562 vehicles a day (traffic count year 2018).
Its listed owner is the state highway agency.
It is one of 176 of the 314 inventoried bridges in Franklin County rated fair (56.1%); 39 (12.4%) 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	Steel stringer or multi-beam girder
Length	about 164 ft
Location	Mm 49.7 on I-91 SB
NBI structure number	B100210WWDOTNBI
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
I 91 & Nashs Mill over Water Nashs Mill Brook	1962	36,983	Fair
ST116 Sunderland R over Water Connecticut River	1937	35,300	Fair
St 2 over Water Fall River	1931	28,448	Good
St 2 A/main St over RR Gwrr	1847	26,700	Poor
I 91 over Water Mill Brook	1964	26,573	Fair
I 91 NB over RR Gwrr	2024	24,960	Good