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N Main St over Mill Stream (cove Brook)

Waldo County, Maine · rated Fair in the 2025 National Bridge Inventory

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

N Main St over Mill Stream (cove Brook) in Waldo County, Maine, 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 1979, making it 46 years old at the 2025 inventory.
It carries about 7,491 vehicles a day (traffic count year 2016).
Its listed owner is the state highway agency.
It is one of 62 of the 92 inventoried bridges in Waldo County rated fair (67.4%); 15 (16.3%) 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 97 ft
Location	0.6 Mi S of Hampden
NBI structure number	2186
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
Searsport Av over Passagassawaukeag + RR	1963	18,553	Fair
Searsport Av over Goose River	2021	12,663	Good
Route 1 Byp over Route 3 (belmont Av)	1973	7,983	Fair
Atlantic Hwy over Little River	1944	7,764	Poor
Atlantic Hwy over Frohock Brook	2004	6,734	Good
Route 1 over Stower Brook	2020	6,180	Good