Perry County Bridge Report Card

Perry County scores 37 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

F37 / 100
Local infrastructure snapshot

Perry County, Missouri

Perry County has 122 bridges in the National Bridge Inventory, with 21 rated poor and 5 rated scour-critical. Its poor-condition share of 17.2% is above the 8.8% statewide average. Poor-condition bridges carry about 28,395 daily vehicle crossings.

122Total Bridges
21Poor (17.2%)
66Fair (54.1%)
5Scour-Critical

Quote-Ready Local Facts

17.2%of county bridges are in poor condition, compared with 8.8% statewide and 6.7% nationally.
28,395daily vehicle crossings are on poor-condition bridges in the county.
5bridges are rated scour-critical, or 4.1% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Perry County a Bridge Condition Exposure Score of 37/100 (F). The county has 122 bridges in the National Bridge Inventory, including 21 in poor condition and 5 rated scour-critical. Poor-condition bridges carry about 28,395 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

FactorWeightCounty ValuePenalty
Poor-condition bridge share4017.2%34.4
Poor-condition traffic exposure2521.6% of measured traffic16.2
Scour-critical bridge share204.1%8.2
Average age vs national baseline1059 years vs 48 nationally4.6
Traffic-data completeness5131,245 measured daily crossings0.0

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 Share17.2%
State Poor-Condition Share8.8%
National Poor-Condition Share6.7%
County Scour-Critical Share4.1%
Average Bridge Age59 years
Poor-Condition Traffic Exposure28,395 vehicles/day

Bridges to Watch

Top Bridges to Watch in Perry County

BridgeReasonConditionDaily TrafficYear Built
Mo 51 S over Kaskaskia ST MississiPoor condition + traffic exposurePoor3,8061942
Mo 51 S over Horse Island ChutePoor condition + traffic exposurePoor3,8061942
Mo 51 S over Is 55Poor condition + traffic exposurePoor10,7611970
RT T E over Is 55Poor condition + traffic exposurePoor4,7171970
RT T E over Saline CRPoor condition + traffic exposurePoor1,2481933
RT B S over Is 55Poor condition + traffic exposurePoor1,1531970
RT K S over Apple CRPoor condition + traffic exposurePoor9951960
RT O E over Apple CRPoor condition + traffic exposurePoor3861958
RT Nn E over Saline CRPoor condition + traffic exposurePoor3641956
RT Nn E over Is 55Poor condition + traffic exposurePoor3641970

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.