Buchanan County Bridge Report Card

Buchanan County scores 85 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

B85 / 100

Local infrastructure snapshot

Buchanan County, Iowa

Buchanan County has 320 bridges in the National Bridge Inventory, with 20 rated poor and 0 rated scour-critical. Its poor-condition share of 6.2% is at or below the 18.6% statewide average. Poor-condition bridges carry about 10,444 daily vehicle crossings.

320Total Bridges

20Poor (6.2%)

161Fair (50.3%)

0Scour-Critical

Quote-Ready Local Facts

6.2%of county bridges are in poor condition, compared with 18.6% statewide and 6.7% nationally.

10,444daily 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 Buchanan County a Bridge Condition Exposure Score of 85/100 (B). The county has 320 bridges in the National Bridge Inventory, including 20 in poor condition and 0 rated scour-critical. Poor-condition bridges carry about 10,444 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	6.2%	12.5
Poor-condition traffic exposure	25	3.3% of measured traffic	2.5
Scour-critical bridge share	20	0.0%	0.0
Average age vs national baseline	10	40 years vs 48 nationally	0.0
Traffic-data completeness	5	315,295 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	6.2%
State Poor-Condition Share	18.6%
National Poor-Condition Share	6.7%
County Scour-Critical Share	0.0%
Average Bridge Age	40 years
Poor-Condition Traffic Exposure	10,444 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeRacine AVE over Drainage Ditch — 2,671 vehicles/day Oldest Listed BridgeConcord ST over Drainage — built in 1900 All County BridgesBrowse every bridge record in Buchanan County.

Top Bridges to Watch in Buchanan County

Bridge	Reason	Condition	Daily Traffic	Year Built
Racine AVE over Drainage Ditch	Poor condition + traffic exposure	Poor	2,671	1953
Racine AVE over Small Natural Stream	Poor condition + traffic exposure	Poor	2,671	1954
FM over Wapsipinicon River	Poor condition + traffic exposure	Poor	1,390	1962
FM over Small Stream	Poor condition + traffic exposure	Poor	790	1952
FM over Br Buffalo Creek	Poor condition + traffic exposure	Poor	776	1962
220th ST over Drainage Ditch	Poor condition + traffic exposure	Poor	760	1927
330th ST over Bear Creek	Poor condition + traffic exposure	Poor	648	1951
Concord ST over Drainage	Poor condition + traffic exposure	Poor	220	1900
Loc 150th ST over Otter CR	Poor condition + traffic exposure	Poor	130	1953
Parrish AVE over Pine CR	Poor condition + traffic exposure	Poor	80	1960

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.