Harper County Bridge Report Card

Harper County scores 71 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

C71 / 100

Local infrastructure snapshot

Harper County, Kansas

Harper County has 373 bridges in the National Bridge Inventory, with 32 rated poor and 9 rated scour-critical. Its poor-condition share of 8.6% is above the 5.2% statewide average. Poor-condition bridges carry about 1,846 daily vehicle crossings.

373Total Bridges

32Poor (8.6%)

242Fair (64.9%)

9Scour-Critical

Quote-Ready Local Facts

8.6%of county bridges are in poor condition, compared with 5.2% statewide and 6.7% nationally.

1,846daily vehicle crossings are on poor-condition bridges in the county.

9bridges are rated scour-critical, or 2.4% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Harper County a Bridge Condition Exposure Score of 71/100 (C). The county has 373 bridges in the National Bridge Inventory, including 32 in poor condition and 9 rated scour-critical. Poor-condition bridges carry about 1,846 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	8.6%	17.2
Poor-condition traffic exposure	25	2.6% of measured traffic	1.9
Scour-critical bridge share	20	2.4%	4.8
Average age vs national baseline	10	60 years vs 48 nationally	4.9
Traffic-data completeness	5	71,765 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	8.6%
State Poor-Condition Share	5.2%
National Poor-Condition Share	6.7%
County Scour-Critical Share	2.4%
Average Bridge Age	60 years
Poor-Condition Traffic Exposure	1,846 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeNW 60 RD over Camp Creek — 1,030 vehicles/day Oldest Listed BridgeMw. 30th Road over Spring Creek — built in 1912 All County BridgesBrowse every bridge record in Harper County.

Top Bridges to Watch in Harper County

Bridge	Reason	Condition	Daily Traffic	Year Built
SW 40th RD over Little Sandy Creek	Poor condition + traffic exposure	Poor	80	1930
NE 120 AVE over Stream	Poor condition + traffic exposure	Poor	10	1948
NW 60 RD over Camp Creek	Poor condition + traffic exposure	Poor	1,030	1924
NW 60 RD over Cottonwood Creek	Poor condition + traffic exposure	Poor	80	1918
NE 30 RD over Stream	Poor condition + traffic exposure	Poor	80	1930
Rs 302 NW 50th AVE over Stream	Poor condition + traffic exposure	Poor	80	1940
Rs 1485 40 AVE over Trib. To Silver Creek	Poor condition + traffic exposure	Poor	66	1925
Rs 1485 SE 40 AVE over Wildcat Creek	Poor condition + traffic exposure	Poor	55	1935
Local Rd. L.9-20.0 over Stream	Poor condition + traffic exposure	Poor	50	1978
SW 40 AVE over Stream	Poor condition + traffic exposure	Poor	40	1930

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.