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C2003 over Mill Brook

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

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

C2003 over Mill Brook in Chittenden County, Vermont, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 6 (satisfactory condition) on the 0-9 scale.
It was built in 1939 and reconstructed in 1980, making it 86 years old at the 2025 inventory.
It carries about 880 vehicles a day (traffic count year 2019).
Its listed owner is a town or township highway agency.
It is one of 90 of the 184 inventoried bridges in Chittenden County rated fair (48.9%); 4 (2.2%) 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 53 ft
Location	Jct of CL2 TH3 & CL3 TH26
NBI structure number	100409001404091
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 Winooski River	1962	56,400	Good
I 00089 Ml over Winooski River	1962	56,400	Good
I 00089 Ml over I 89 over Necrr	1962	56,400	Good
I 00089 Ml over I 89 over Necrr	1962	56,400	Good
I 00089 Ml over I 89 over Vt 15	1962	56,400	Fair
I 00089 Ml over I 89 over Vt 15	1962	56,400	Fair