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Tr 00th6 over Th No 6 over I 89

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

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

Tr 00th6 over Th No 6 over I 89 in Orange County, Vermont, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the superstructure, rated 7 (good condition) on the 0-9 scale.
It was built in 1968, making it 57 years old at the 2025 inventory.
It carries about 200 vehicles a day (traffic count year 2019).
Its listed owner is the state highway agency.
It is one of 99 of the 209 inventoried bridges in Orange County rated good (47.4%); 4 (1.9%) 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 99 ft
Location	5.5 Mi N Exit 4
NBI structure number	200903D31S09031
Condition class	Good

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