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C3030 over Marshfield Brook

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

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

C3030 over Marshfield Brook in Washington County, Vermont, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
It was built in 1991, making it 34 years old at the 2025 inventory.
It carries about 20 vehicles a day (traffic count year 2019).
Its listed owner is a town or township highway agency.
It is one of 113 of the 248 inventoried bridges in Washington County rated good (45.6%); 11 (4.4%) 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	Timber stringer or multi-beam girder
Length	about 32 ft
Location	0.25 Mi to Jct W CL3 TH9
NBI structure number	101209001212091
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 Little River	1961	28,200	Fair
I 00089 Ml over Little River	1961	28,200	Fair
I 00089 Ml over I 89 over Th No 7	1961	28,200	Fair
I 00089 Ml over I 89 over Th No 7	1961	28,200	Fair
I 00089 Ml over I 89 over US 2	1961	28,200	Good
I 00089 Ml over I 89 over US 2	1961	28,200	Good