Butler County Bridge Report Card

Butler County scores 60 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

D60 / 100

Local infrastructure snapshot

Butler County, Iowa

Butler County has 287 bridges in the National Bridge Inventory, with 35 rated poor and 13 rated scour-critical. Its poor-condition share of 12.2% is at or below the 18.6% statewide average. Poor-condition bridges carry about 9,745 daily vehicle crossings.

287Total Bridges

35Poor (12.2%)

77Fair (26.8%)

13Scour-Critical

Quote-Ready Local Facts

12.2%of county bridges are in poor condition, compared with 18.6% statewide and 6.7% nationally.

9,745daily vehicle crossings are on poor-condition bridges in the county.

13bridges are rated scour-critical, or 4.5% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Butler County a Bridge Condition Exposure Score of 60/100 (D). The county has 287 bridges in the National Bridge Inventory, including 35 in poor condition and 13 rated scour-critical. Poor-condition bridges carry about 9,745 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	12.2%	24.4
Poor-condition traffic exposure	25	8.7% of measured traffic	6.5
Scour-critical bridge share	20	4.5%	9.1
Average age vs national baseline	10	39 years vs 48 nationally	0.0
Traffic-data completeness	5	111,667 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	12.2%
State Poor-Condition Share	18.6%
National Poor-Condition Share	6.7%
County Scour-Critical Share	4.5%
Average Bridge Age	39 years
Poor-Condition Traffic Exposure	9,745 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeTraer ST over Ovrflw Shell Rock River — 1,902 vehicles/day Oldest Listed BridgeTraer ST over Ovrflw Shell Rock River — built in 1900 All County BridgesBrowse every bridge record in Butler County.

Top Bridges to Watch in Butler County

Bridge	Reason	Condition	Daily Traffic	Year Built
FM over West Fork Cedar River	Poor condition + traffic exposure	Poor	79	1920
Local over Hartgrave Ck	Poor condition + traffic exposure	Poor	59	1952
Local over Maynes Creek	Poor condition + traffic exposure	Poor	26	1900
Quail AVE over Flood Creek	Poor condition + traffic exposure	Poor	26	1910
Local over Beaver Creek	Poor condition + traffic exposure	Poor	21	1910
Local over Small Stream	Poor condition + traffic exposure	Poor	11	1970
Traer ST over Ovrflw Shell Rock River	Poor condition + traffic exposure	Poor	1,902	1900
Cherry ST over Drainage	Poor condition + traffic exposure	Poor	1,429	1900
C33 over Small Stream	Poor condition + traffic exposure	Poor	1,002	1966
FM over Landphere Creek	Poor condition + traffic exposure	Poor	890	1972

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.