Mitchell County Bridge Report Card

Mitchell County scores 77 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

C77 / 100

Local infrastructure snapshot

Mitchell County, Iowa

Mitchell County has 167 bridges in the National Bridge Inventory, with 16 rated poor and 0 rated scour-critical. Its poor-condition share of 9.6% is at or below the 18.6% statewide average. Poor-condition bridges carry about 3,182 daily vehicle crossings.

167Total Bridges

16Poor (9.6%)

70Fair (41.9%)

0Scour-Critical

Quote-Ready Local Facts

9.6%of county bridges are in poor condition, compared with 18.6% statewide and 6.7% nationally.

3,182daily vehicle crossings are on poor-condition bridges in the county.

0bridges are rated scour-critical, or 0.0% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Mitchell County a Bridge Condition Exposure Score of 77/100 (C). The county has 167 bridges in the National Bridge Inventory, including 16 in poor condition and 0 rated scour-critical. Poor-condition bridges carry about 3,182 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	9.6%	19.2
Poor-condition traffic exposure	25	5.3% of measured traffic	4.0
Scour-critical bridge share	20	0.0%	0.0
Average age vs national baseline	10	45 years vs 48 nationally	0.0
Traffic-data completeness	5	59,688 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	9.6%
State Poor-Condition Share	18.6%
National Poor-Condition Share	6.7%
County Scour-Critical Share	0.0%
Average Bridge Age	45 years
Poor-Condition Traffic Exposure	3,182 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeLancer AVE over Small Natural Stream — 1,011 vehicles/day Oldest Listed BridgePrimrose AVE over Little Cedar River — built in 1908 All County BridgesBrowse every bridge record in Mitchell County.

Top Bridges to Watch in Mitchell County

Bridge	Reason	Condition	Daily Traffic	Year Built
Lancer AVE over Small Natural Stream	Poor condition + traffic exposure	Poor	1,011	1925
Walnut AVE over Wapsipinicon River	Poor condition + traffic exposure	Poor	462	1940
430th over Creek	Poor condition + traffic exposure	Poor	403	1953
320th over Little Cedar River	Poor condition + traffic exposure	Poor	226	1931
320th over Fish Creek	Poor condition + traffic exposure	Poor	226	1965
390th over Rock Creek	Poor condition + traffic exposure	Poor	216	1973
480th over Small Stream	Poor condition + traffic exposure	Poor	216	1984
Lawrence ST over Drainage	Poor condition + traffic exposure	Poor	167	1950
440th over Deer Creek	Poor condition + traffic exposure	Poor	59	1950
Rampart AVE over Small Stream	Poor condition + traffic exposure	Poor	59	1974

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.