Jackson County Bridge Report Card

Jackson County scores 68 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

D68 / 100

Local infrastructure snapshot

Jackson County, Iowa

Jackson County has 252 bridges in the National Bridge Inventory, with 36 rated poor and 2 rated scour-critical. Its poor-condition share of 14.3% is at or below the 18.6% statewide average. Poor-condition bridges carry about 3,706 daily vehicle crossings.

252Total Bridges

36Poor (14.3%)

138Fair (54.8%)

2Scour-Critical

Quote-Ready Local Facts

14.3%of county bridges are in poor condition, compared with 18.6% statewide and 6.7% nationally.

3,706daily 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 Jackson County a Bridge Condition Exposure Score of 68/100 (D). The county has 252 bridges in the National Bridge Inventory, including 36 in poor condition and 2 rated scour-critical. Poor-condition bridges carry about 3,706 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	14.3%	28.6
Poor-condition traffic exposure	25	2.2% of measured traffic	1.7
Scour-critical bridge share	20	0.8%	1.6
Average age vs national baseline	10	39 years vs 48 nationally	0.0
Traffic-data completeness	5	167,671 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	14.3%
State Poor-Condition Share	18.6%
National Poor-Condition Share	6.7%
County Scour-Critical Share	0.8%
Average Bridge Age	39 years
Poor-Condition Traffic Exposure	3,706 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeFM over S Copper Creek — 1,070 vehicles/day Oldest Listed BridgeLocal over Creek — built in 1900 All County BridgesBrowse every bridge record in Jackson County.

Top Bridges to Watch in Jackson County

Bridge	Reason	Condition	Daily Traffic	Year Built
Local over Small Creek	Poor condition + traffic exposure	Poor	11	1940
FM over S Copper Creek	Poor condition + traffic exposure	Poor	1,070	1974
FM over Duck Creek	Poor condition + traffic exposure	Poor	500	1950
FM over N Fork Maquoketa River	Poor condition + traffic exposure	Poor	400	1952
FM over Maquoketa River	Poor condition + traffic exposure	Poor	330	1950
Local over Prairie Creek	Poor condition + traffic exposure	Poor	130	1971
FM over Creek	Poor condition + traffic exposure	Poor	120	1977
Local over Creek	Poor condition + traffic exposure	Poor	110	1938
FM over Small	Poor condition + traffic exposure	Poor	80	1980
FM over S Fork Maquoketa River	Poor condition + traffic exposure	Poor	80	1982

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.