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I 00091 Ml over I 91 NB over Maple St

Windham County, Vermont · rated Good in the 2025 National Bridge Inventory

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

I 00091 Ml over I 91 NB over Maple St in Windham County, Vermont, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the substructure, rated 7 (good condition) on the 0-9 scale.
It was built in 1960 and reconstructed in 2011, making it 65 years old at the 2025 inventory.
It carries about 19,400 vehicles a day (traffic count year 2018).
Its listed owner is the state highway agency.
It is one of 149 of the 338 inventoried bridges in Windham County rated good (44.1%); 23 (6.8%) 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	Continuous prestressed concrete tee beam
Length	about 142 ft
Location	0.7 Mi N Exit 1
NBI structure number	200091005N13022
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
I 00091 Ml over I 91 over Th No 5	2017	24,200	Good
I 00091 Ml over I 91 over Vt 30 Westr	2017	24,200	Good
I 00091 Ml over I 91 SB over Maple St	1960	19,400	Good
I 00091 Ml over I 91 over Williams St	2012	19,400	Good
I 00091 Ml over I 91 over Williams St	2012	19,400	Good
I 00091 Ml over I 91 over Th No 29	1958	18,300	Good