Martin County Bridge Report Card

Martin County scores 38 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

F38 / 100

Local infrastructure snapshot

Martin County, Minnesota

Martin County has 162 bridges in the National Bridge Inventory, with 39 rated poor and 15 rated scour-critical. Its poor-condition share of 24.1% is above the 4.5% statewide average. Poor-condition bridges carry about 6,637 daily vehicle crossings.

162Total Bridges

39Poor (24.1%)

48Fair (29.6%)

15Scour-Critical

Quote-Ready Local Facts

24.1%of county bridges are in poor condition, compared with 4.5% statewide and 6.7% nationally.

6,637daily vehicle crossings are on poor-condition bridges in the county.

15bridges are rated scour-critical, or 9.3% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Martin County a Bridge Condition Exposure Score of 38/100 (F). The county has 162 bridges in the National Bridge Inventory, including 39 in poor condition and 15 rated scour-critical. Poor-condition bridges carry about 6,637 daily vehicle crossings. Poor condition does not mean unsafe; bridges judged unsafe are closed or restricted by transportation agencies.

Download all county report-card scores as CSV.

How the Score Breaks Down

Factor	Weight	County Value	Penalty
Poor-condition bridge share	40	24.1%	40.0
Poor-condition traffic exposure	25	3.5% of measured traffic	2.6
Scour-critical bridge share	20	9.3%	18.5
Average age vs national baseline	10	49 years vs 48 nationally	0.6
Traffic-data completeness	5	189,745 measured daily crossings	0.0

Score = 100 minus weighted penalties. The score is a comparative research signal, not an official safety rating. Read the full methodology.

County Comparisons

County Poor-Condition Share	24.1%
State Poor-Condition Share	4.5%
National Poor-Condition Share	6.7%
County Scour-Critical Share	9.3%
Average Bridge Age	49 years
Poor-Condition Traffic Exposure	6,637 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeCsah 27 over Elm Creek — 1,456 vehicles/day Oldest Listed BridgeCR 140 over Elm Creek — built in 1912 All County BridgesBrowse every bridge record in Martin County.

Top Bridges to Watch in Martin County

Bridge	Reason	Condition	Daily Traffic	Year Built
Csah 27 over Elm Creek	Poor condition + traffic exposure	Poor	1,456	1977
Csah 39 over Elm Creek	Poor condition + traffic exposure	Poor	1,153	1966
Csah 38 over Elm Creek	Poor condition + traffic exposure	Poor	530	1964
Csah 8 over Tuttle Lake Outlet	Poor condition + traffic exposure	Poor	480	1959
Csah 18 over South Creek	Poor condition + traffic exposure	Poor	435	1971
Csah 33 over Elm Creek	Poor condition + traffic exposure	Poor	128	1965
CR 125 over E Fk Des Moines River	Poor condition + traffic exposure	Poor	100	1972
CR 107 over Cr.107 Over Elm Creek	Poor condition + traffic exposure	Poor	99	1975
CR 107 over E Fk Des Moines River	Poor condition + traffic exposure	Poor	77	1977
CR 123 over E Fk Des Moines River	Poor condition + traffic exposure	Poor	50	1966

Important safety note

Poor condition does not mean a bridge is unsafe. It means at least one major component has significant deterioration and the bridge is a priority for maintenance, repair, or replacement. Bridges judged unsafe are closed or restricted by transportation agencies.