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Bridge conditions in Martin County, Minnesota

162 inventoried bridges · 39 rated poor · 2025 National Bridge Inventory

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

Martin County has 39 bridges rated poor out of 162 inventoried, a 24.1% share that puts it well above the national rate of about 7%.

39 of the 162 bridges in Martin County, Minnesota, are rated in poor condition (24.1%) in the 2025 National Bridge Inventory, as of August 20, 2026.
75 bridges (46.3%) are rated good and 48 (29.6%) fair.
The median Martin County bridge was built in 1976.
The busiest poor-rated bridge is Csah 27 over Elm Creek (built 1977), carrying about 1,456 vehicles a day.

Good 46.3% · Fair 29.6% · Poor 24.1% of 162 bridges

Bridges rated poor

Every bridge in the county with a poor rating, busiest first. Poor means a major component is rated 4 or lower on FHWA's 0-9 scale; it is a repair flag, not a closure notice.

Bridge	Built	Vehicles/day	Condition
Csah 27 over Elm Creek	1977	1,456	Poor
Csah 39 over Elm Creek	1966	1,153	Poor
Csah 53 over Center Creek	1930	1,089	Poor
Csah 38 over Elm Creek	1964	530	Poor
Csah 8 over Tuttle Lake Outlet	1959	480	Poor
Csah 18 over South Creek	1971	435	Poor
Csah 33 over Elm Creek	1965	128	Poor
CR 125 over E Fk Des Moines River	1972	100	Poor
CR 107 over CR.107 over Elm Creek	1975	99	Poor
T 188 over Co Ditch # 1	1938	88	Poor
Csah 119 over E Fk Des Moines River	1977	85	Poor
Csah 9 over Cedar Run	1957	85	Poor
CR 107 over E Fk Des Moines River	1977	77	Poor
Csah 21 over Elm Creek	1953	70	Poor
T 40 over Center Creek	1918	58	Poor
T 200 over E Fk Des Moines River	1931	54	Poor
CR 123 over E Fk Des Moines River	1966	50	Poor
T 18 over Elm Creek	1976	49	Poor
CR 122 over over E Fk Des Mo	1966	45	Poor
T 11 over Elm Creek	1979	43	Poor
T 298 over Lily Creek	1973	40	Poor
T 67 over E Fk Des Moines River	1977	40	Poor
T 67 over E Fk Des Moines River	1977	30	Poor
T 176 over Elm Creek	1977	30	Poor
T 180 over Elm Creek	1982	30	Poor
T 3 over Cedar Run	1975	28	Poor
CR 159 over Center Creek	1965	27	Poor
T 12 over Elm Creek	1979	26	Poor
T 200 over Co Ditch # 11	1981	24	Poor
T 69 over Ditch	1914	24	Poor
T 69 over E Fk Des Moines River	1977	23	Poor
T 75 over Co Ditch # 11	1977	22	Poor
T 198 over Co Ditch # 11	1980	22	Poor
CR 140 over Elm Creek	1912	18	Poor
T 38 over Elm Creek	1913	16	Poor
T 165 over South Creek	1918	16	Poor
T 329 over Elm Creek	1924	16	Poor
T 329 over Elm Creek	1925	16	Poor
T 107 over South Creek	1952	15	Poor

Busiest bridges in the county

Bridge	Built	Vehicles/day	Condition
Mn 15 over Center Creek	1973	11,176	Good
I 90 over E Fk Des Moines River	1973	8,600	Fair
I 90 over E Fk Des Moines River	1972	8,600	Fair
I 90 over Stream	1972	8,600	Good
I 90 over E Fk Des Moines River	1973	8,600	Good
I 90 over South Creek	1972	8,111	Fair
I 90 over Im Rail	1973	5,100	Fair
I 90 over Im Rail	1973	5,100	Fair
I 90 over Center Creek	1973	5,100	Fair
I 90 over Center Creek	1973	5,100	Fair

Source: FHWA National Bridge Inventory, 2025. Counts cover inventoried highway bridges over 20 feet; ratings are reported by the state DOT.

Every bridge in Martin County → - all 162, busiest first, each with its own condition record.

All of Minnesota: Minnesota bridge conditions by county · every download on the data page.

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