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Every bridge in Sanilac County, Michigan

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

170 inventoried bridges, busiest first

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

Sanilac County, Michigan, has 170 bridges in the 2025 National Bridge Inventory: 50 rated good, 95 fair, and 25 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
M-90 over Black River	2023	8,400	Good
M-90 over Mills Creek	2023	8,400	Good
M-25 over Mill Creek	2016	7,775	Good
M-46 over Black River	1947	5,462	Poor
M-90 over E Br Mills Creek	2000	5,001	Good
M-90 over Spring Creek	2000	5,001	Good
M-90 over W Br Mills Creek	2006	5,001	Good
Deckerville Road over Black River I/c Drain	1985	4,630	Good
M-19 over Br of Elk Creek	2000	4,553	Good
M-19 over Elk Creek	2000	4,553	Fair
M-19 over Hale Creek	2002	4,553	Good
M-53 over White Creek	2006	4,415	Good
M-53 over N Br Cass River	1985	4,062	Fair
M-53 over Greenman Creek	1927	3,600	Poor
M-53 over S Br Cass River	1977	3,600	Fair
M-25 over Forester Creek	1934	3,500	Fair
M-46 over N Branch White Creek	1932	3,484	Fair
M-46 over S Br Cass River	2007	3,484	Good
Ruth Road over Black River I/c Drain	1952	3,325	Fair
M-25 over Cherry Creek	1934	3,294	Fair
M-25 over Carmody Creek	1942	2,969	Fair
M-25 over Sherman Creek	1939	2,969	Fair
Marlette Road over S Br Cass River I/c Drn	1930	2,754	Poor
M-90 over Potts Drain	1961	2,600	Good
Wildcat Road over Br of Birch Creek	2000	2,060	Good
Applegate Road over Black River	1979	2,025	Fair
Galbraith Line Rd over Birch Creek	2003	2,020	Good
Deckerville Road over Middle Br Drain	1992	1,825	Fair
Galbraith Line Rd over Black River	1985	1,761	Poor
M-19 over Br Cass River	2007	1,718	Good
M-19 over Br Cass River	1952	1,718	Fair
M-19 over Middle Br Cass River	1952	1,718	Fair
M-19 over S Fork Cass River	1957	1,600	Poor
Shephard Road over Elk Creek Drain	1960	1,600	Fair
Galbraith Line Rd over Black Creek	2007	1,590	Fair
Peck Road over Elk Creek Drain	2023	1,538	Good
Harrington Road over Black River	1929	1,500	Fair
M-25 over (no Name)creek	1948	1,173	Fair
M-25 over Big Creek	1934	1,173	Fair
M-25 over Indian Creek	1949	1,173	Fair
Todd Road over Black Creek Drain	2007	1,170	Fair
Deckerville Road over S Br Cass River I/c Drn	1930	1,023	Fair
Snover Road over S Br Cass River I/c Drn	1983	967	Poor
Germania Road over Duff Drain	2001	966	Fair
French Line Road over Elk Creek Drain	1988	958	Good
Bay City-forestvil over Tyre I/c Drain Extn	1985	948	Poor
Black River Road over Black Creek	1962	919	Poor
Snover Road over White Creek I/c Drain	1983	875	Fair
Sanborn Street over Black River	1974	850	Poor
Marlette Road over Potts Drain	1996	840	Good
Shephard Road over Setter I/c Drain	1970	835	Fair
M-25 over Mill Creek	1934	788	Fair
Snover Road over Middle Br Drain	1930	742	Poor
Marlette Road over Elk Creek Drain	1983	725	Good
Germania Road over N Br Cass River	1974	658	Fair
French Line Road over Beals & Frizzle Drain	1930	610	Fair
French Line Road over Smalldon Drain	1930	610	Fair
Melvin Road over Elk Creek Drain	1930	565	Fair
Bricker Road over Jackson Creek I/c Drain	1976	540	Fair
Melvin Rd over Mc Donald Drain	2018	532	Good
Germania Road over S Fork of N Br Cass Riv	1976	522	Fair
Germania Road over Evergreen-austin Drain	1986	514	Good
Germania Road over Middle Br Cass River	1987	514	Fair
French Line Road over Black River I/c Drain	1992	510	Fair
Argyle Road over Evergreen-austin Drain	1976	454	Fair
Germania Road over S Br Cass River I/c Drn	1983	437	Fair
French Line Road over Duff Drain	2001	435	Fair
French Line Road over Duff Drain	2001	435	Fair
Forester Road over Black River I/c Drain	1979	380	Good
French Line Road over Duff Drain	2001	375	Good
Stilson Road over Elk Creek Drain	1978	371	Good
Stilson Road over Potts Drain	1991	320	Fair
French Line Road over Carter Drain	1994	314	Good
French Line Road over S Br Cass River I/c Drn	1986	314	Good
Church Road over Black River I/c Drain	2004	310	Fair
Aitken Road over Black River I/c Drain	2005	305	Good
Fetting Road over Elk Creek Drain	1983	302	Good
Burns Line Road over Mill Creek	1950	300	Fair
Cash Road over Elk Creek Drain	2004	300	Fair
Downington Road over Black River I/c Drain	1986	300	Fair
Harrington Road over Elk Creek Drain	1991	300	Good
Harrington Road over Speaker-maple Valley Drn	1960	300	Fair
Wheeler Road over S Fork of N Br Cass Riv	1950	300	Fair
Shabbona Road over S Br Cass River I/c Drn	1950	290	Fair
Montgomery Road over S Br Cass River I/c Drn	1977	265	Fair
Babcock Road over Birch Creek	2015	259	Good
Washington Road over Black River I/c Drain	1987	256	Fair
St Clair Road over Birch Creek	1970	250	Fair
Mills Road over Black River & Smercz Drn	2017	246	Good
Cooper Road over S Br Cass River I/c Drn	2005	240	Good
Hoadley Road over N Br Cass River	1991	240	Fair
Burns Line Road over Mill Creek	2005	230	Good
Stilson Road over Mcdonald Drain	1981	230	Fair
Aitken Road over Potts Drain	1930	225	Fair
Arnold Road over S Br Cass River I/c Drn	1988	225	Fair
Custer Road over Berry Drain	1981	225	Fair
Custer Road over Black River I/c Drain	1996	225	Fair
Harrington Road over Potts Drain	1991	225	Fair
Miller Road over S Br Cass River I/c Drn	1986	225	Good
Morris Road over Beals & Frizzle Drain	1910	225	Fair
Range Line Road over Berry Drain	1982	225	Fair
Range Line Road over Fye Drain	1982	225	Poor
School Road over Speaker-maple Valley Drn	1970	225	Fair
Shabbona Road over Black River I/c Drain	1986	225	Good
Stone Road over Black River I/c Drain	1991	225	Good
Walker Road over S Br Cass River I/c Drn	1981	225	Fair
Washington Road over Elk Creek Drain	1983	225	Fair
Applegate Road over Elk Creek Drain	1983	222	Good
Banner Road over Elk Creek Drain	1983	222	Good
Cribbins Road over Black Creek Drain	1987	210	Fair
Stilson Road over Mcdonald Drain	1950	201	Poor
Berkshire Road over Berry Drain	1945	200	Fair
Fisher Rd over Sanilac & St Clair Drain	2016	200	Good
Fisher Road over Jackson Creek I/c Drain	2016	200	Good
Freiberger Road over Middle Br Drain	1970	200	Poor
Mushroom Road over White Creek I/c Drain	1970	200	Fair
Paldi Road over Speaker-maple Valley Drn	1969	200	Fair
Richmondville Road over Black River I/c Drain	1981	200	Poor
Berkshire Road over Fye Drain	1977	195	Fair
Wheeler Road over Middle Br Cass River Drn	1981	190	Fair
Lamton Road over Greenman I/c Drain	2004	185	Good
Banner Road over Dwight Drain	1983	180	Fair
Custer Road over Fye Drain	1990	180	Poor
Custer Road over Fye Drain	1983	180	Fair
Downington Road over Middle Br Drain	1969	180	Fair
Shabbona Road over Middle Br Drain	1993	180	Good
Snover Road over Black River I/c Drain	1980	180	Fair
Brown Road over Jackson Creek I/c Drain	1980	170	Fair
Comstock Road over Jackson Creek I/c Drain	1983	170	Fair
Fargo Road over Black Creek	2000	170	Fair
Kilgore Road over Black Creek Drain	1920	170	Fair
Nicol Road over Black River I/c Drain	2005	170	Good
Stilson Road over Setter Drain	1979	170	Poor
Wellman Line Road over Jackson Creek I/c Drain	1984	170	Fair
Aitken Road over Elk Creek Drain	1985	165	Good
Carroll Road over Elk Creek Drain	1991	165	Good
Hoadley Road over White Creek I /c Drain	1978	165	Good
Hoadley Road over White Creek I/c Drain	1986	165	Good
Paldi Road over Elk Creek Drain	1950	165	Fair
Walker Road over Elk Creek Drain	1983	165	Fair
Downington Road over Cherry Creek	1995	160	Fair
Downington Road over S Br Cass River I/c Drn	1999	160	Fair
Freiberger Road over S Fork of N Br Cass Riv	1985	160	Poor
Leslie Road over Middle Br Cass River	1905	160	Fair
Applegate Road over Beals & Frizzle Drain	2001	155	Fair
Mushroom Road over S Br Cass River I/c Drn	2001	155	Good
Arnold Road over Middle Br Cass River	1907	150	Fair
Bad Axe Road over S Fork of N Br Cass Riv	1990	150	Poor
Bad Axe Road over Tyre I/c Drain Extn	1988	150	Poor
Brooks Road over Elk Creek Drain	1994	150	Poor
Eddy Road over Dwight Drain	1983	150	Fair
Moore Road over S Br Cass River I/c Drn	1930	150	Fair
Moriartey Road over White Creek I/c Drain	1980	150	Good
Mowerson Road over Elk Creek Drain	1980	150	Poor
Mushroom Road over Middle Br Drain	1984	150	Poor
Patterson Road over S Fork of N Br Cass Riv	1985	150	Fair
Richards Road over White Creek I/c Drain	1973	150	Fair
Shelden Road over Brice Drain	1930	150	Fair
Stringer Road over Dwight Drain	1984	150	Fair
Adams Road over White Creek I/c Drain	1980	135	Fair
Decker Road over S Br Cass River I/c Drn	1969	135	Fair
Hall Road over Potts Drain	1980	135	Good
Wood Road over Duff Drain	2001	130	Fair
Sullivan Road over S Br Cass River I/c Drn	1972	125	Poor
Day Road over Forester Creek	1982	120	Fair
Setter Road over Setter I/c Drain	1980	120	Fair
Leslie Road over S Br Cass River I/c Drn	1991	115	Fair
Millan Road over Setter I/c Drain	1999	110	Fair
Mowerson Road over Mcdonald Drain	1988	90	Poor
Huron Line Road over Tyre I/c Drain Ext	1974	40	Poor

Source: FHWA National Bridge Inventory, 2025.

Sanilac County bridge conditions · Michigan bridges by county.

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