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Atlantic Hwy over Smo RR (allens Siding)

Lincoln County, Maine · rated Good in the 2025 National Bridge Inventory

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

Atlantic Hwy over Smo RR (allens Siding) in Lincoln County, Maine, 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 1997, making it 28 years old at the 2025 inventory.
It carries about 12,960 vehicles a day (traffic count year 2016).
Its listed owner is the state highway agency.
It is one of 15 of the 63 inventoried bridges in Lincoln County rated good (23.8%); 7 (11.1%) 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

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

Bridge	Built	Vehicles/day	Condition
Route 1 over Sheepscot River	1983	17,897	Fair
Route 1 over Cod Cove	1958	17,204	Fair
Route 1 over Montsweag Brook	1931	16,559	Fair
Main St over Damariscotta River	1952	14,450	Fair
Atlantic Hwy over Medomak River	1932	13,870	Fair
Route 1 over Marsh River	1962	13,710	Fair