Poweshiek County Bridge Report Card

Poweshiek County scores 50 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

F50 / 100

Local infrastructure snapshot

Poweshiek County, Iowa

Poweshiek County has 243 bridges in the National Bridge Inventory, with 95 rated poor and 2 rated scour-critical. Its poor-condition share of 39.1% is above the 18.6% statewide average. Poor-condition bridges carry about 26,253 daily vehicle crossings.

243Total Bridges

95Poor (39.1%)

82Fair (33.7%)

2Scour-Critical

Quote-Ready Local Facts

39.1%of county bridges are in poor condition, compared with 18.6% statewide and 6.7% nationally.

26,253daily vehicle crossings are on poor-condition bridges in the county.

2bridges are rated scour-critical, or 0.8% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Poweshiek County a Bridge Condition Exposure Score of 50/100 (F). The county has 243 bridges in the National Bridge Inventory, including 95 in poor condition and 2 rated scour-critical. Poor-condition bridges carry about 26,253 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	39.1%	40.0
Poor-condition traffic exposure	25	9.2% of measured traffic	6.9
Scour-critical bridge share	20	0.8%	1.6
Average age vs national baseline	10	50 years vs 48 nationally	1.0
Traffic-data completeness	5	286,201 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	39.1%
State Poor-Condition Share	18.6%
National Poor-Condition Share	6.7%
County Scour-Critical Share	0.8%
Average Bridge Age	50 years
Poor-Condition Traffic Exposure	26,253 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeI 80 WB over Iowa 21 — 13,300 vehicles/day Oldest Listed BridgeOrchard ST over Little Bear Creek — built in 1912 All County BridgesBrowse every bridge record in Poweshiek County.

Top Bridges to Watch in Poweshiek County

Bridge	Reason	Condition	Daily Traffic	Year Built
FM over Big Bear Creek	Poor condition + traffic exposure	Poor	60	1955
Local over Stony Creek	Poor condition + traffic exposure	Poor	15	1971
I 80 WB over Iowa 21	Poor condition + traffic exposure	Poor	13,300	1963
US 6 over Stony Creek	Poor condition + traffic exposure	Poor	2,080	1954
FM over Buck Creek	Poor condition + traffic exposure	Poor	2,000	1969
FM over Small Stream	Poor condition + traffic exposure	Poor	2,000	1969
FM over Little Bear Creek	Poor condition + traffic exposure	Poor	770	1977
FM over Stream	Poor condition + traffic exposure	Poor	750	1924
FM over North Walnut Creek	Poor condition + traffic exposure	Poor	650	1990
FM over Walnut Creek	Poor condition + traffic exposure	Poor	650	1990

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.