Home › Vermont › Orange County › I 00091 Ml over I 91 over Th No 4

I 00091 Ml over I 91 over Th No 4

Orange County, Vermont · rated Fair in the 2025 National Bridge Inventory

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

I 00091 Ml over I 91 over Th No 4 in Orange County, Vermont, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the substructure, rated 6 (satisfactory condition) on the 0-9 scale.
It was built in 1973, making it 52 years old at the 2025 inventory.
It carries about 6,000 vehicles a day (traffic count year 2018).
Its listed owner is the state highway agency.
It is one of 106 of the 209 inventoried bridges in Orange County rated fair (50.7%); 4 (1.9%) 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 127 ft
Location	4.5 Mi S I91 Exit 17
NBI structure number	200091064S09072
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
I 00089 Ml over I 89 over Vt 64	1970	20,400	Fair
I 00089 Ml over I 89 over Vt 64	1970	20,400	Fair
I 00089 Ml over I 89 over Th No 6	1968	16,700	Good
I 00089 Ml over I 89 over Th No 1	1970	16,700	Poor
I 00089 Ml over I 89 over Th No 1	1970	16,700	Fair
I 00091 Ml over I 91 over Th No 14	1971	10,200	Good