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Every bridge in Knox County, Maine

Name: Every bridge in Knox County, Maine
Creator: Bridge Report Card
License: https://creativecommons.org/publicdomain/zero/1.0/

54 inventoried bridges, busiest first

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

Knox County, Maine, has 54 bridges in the 2025 National Bridge Inventory: 15 rated good, 30 fair, and 9 poor (as of August 20, 2026).
This index lists every one of them, busiest first; each links to its own condition record.

Bridge	Built	Vehicles/day	Condition
Main St over Mill Creek	1924	16,917	Fair
Main St over Megunticook River	1931	11,473	Poor
Atlantic Hwy over ST. George River	1991	8,570	Fair
Belfast Rd over Spring Brook	2025	6,960	Good
Heald Hwy over St George River	1960	6,940	Poor
Camden Rd over St George River	1961	5,596	Fair
Rockland Rd over Medomak River	1931	4,890	Fair
Wadsworth St over St.george River	2016	4,779	Good
Pascal Av over Goose River	1951	4,760	Poor
Augusta Rd over Davis Stream	1932	4,410	Fair
Main St over Mill Stream	1959	4,273	Fair
Main St over Mill Stream	1959	4,273	Fair
Washington St over Megunticook River	1933	4,050	Good
Spruce Head Rd over Weskeag River	2017	3,910	Good
Washington St over Megunticook River	1999	2,720	Good
Wadsworth St over Maine Central Railroad	1932	2,507	Fair
Western Rd over Back River	1941	2,180	Fair
Western Rd over Fuller Brook	1947	2,150	Poor
S Union Rd over Brown Brook	1959	2,108	Fair
Knowlton St over Megunticook River	1935	1,920	Poor
Oyster River Rd over Oyster River	2008	1,900	Good
Depot St over St George River	1947	1,872	Fair
Common Rd over St George River	1936	1,570	Fair
Beachwood St over Oyster River	1971	1,255	Fair
Waldoboro Rd over Goose River	1952	1,240	Fair
Island Rd over Atlantic Ocean	2010	900	Good
Fitch Rd over St George River	1920	870	Fair
Main St over Saint George River	1939	846	Poor
Rawson Av over Megunticook River	1935	830	Poor
Jefferson Rd over Davis Stream	1934	778	Fair
Inv 1301439 Rd over Fox Islands Thoroughfare	2012	776	Fair
Camden Rd over St George River	1953	720	Fair
Pulpit Harbor Rd over Mill Stream	2017	630	Good
Mill St over Oyster River	2016	573	Good
Burkettville Rd over Medomak River	1937	530	Fair
Vinalhaven Ferry over Carvers Harbor	2012	528	Fair
Middle Rd over St.george River	1936	520	Fair
Wottons Mill Rd over Quiggle Brook	2001	504	Good
Shepard Hill Rd over Medomak River	1966	474	Fair
Mount Battie St over Megunticook River	1987	442	Fair
Razorville Rd over Jackson Str. (davis Str.	1947	340	Poor
Island Av over Tide Water	1971	300	Good
W Meadow Rd over Meadow Brook	2023	280	Good
Miller Rd over Payson Brook	1999	267	Fair
Payson Rd over Mill Stream	1929	200	Poor
Sandy Shores Rd over Back River	2019	176	Good
Thompson Meadow Dr over Meadow Brook	2019	124	Good
Lanes Island Rd over Tidal Flow	1954	116	Fair
Skidmore Rd over Medomak River	2001	100	Fair
Fitch Rd over Jackson Mill Str	2020	90	Good
Ferry Rd over Matinicus Harbor	2012	82	Fair
Fairgrounds Ln over St George River	1923	80	Fair
Pulpit Harbor Rd over Pulpit Harbor Cove	2013	73	Fair
Ferry Slip over Lermond Cove	2008	38	Fair

Source: FHWA National Bridge Inventory, 2025.

Knox County bridge conditions · Maine bridges by county.

Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.