Atchison County Bridge Report Card

Atchison County scores 81 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

B81 / 100

Local infrastructure snapshot

Atchison County, Missouri

Atchison County has 190 bridges in the National Bridge Inventory, with 14 rated poor and 1 rated scour-critical. Its poor-condition share of 7.4% is at or below the 8.8% statewide average. Poor-condition bridges carry about 10,256 daily vehicle crossings.

190Total Bridges

14Poor (7.4%)

70Fair (36.8%)

1Scour-Critical

Quote-Ready Local Facts

7.4%of county bridges are in poor condition, compared with 8.8% statewide and 6.7% nationally.

10,256daily vehicle crossings are on poor-condition bridges in the county.

1bridges are rated scour-critical, or 0.5% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Atchison County a Bridge Condition Exposure Score of 81/100 (B). The county has 190 bridges in the National Bridge Inventory, including 14 in poor condition and 1 rated scour-critical. Poor-condition bridges carry about 10,256 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	7.4%	14.7
Poor-condition traffic exposure	25	4.9% of measured traffic	3.7
Scour-critical bridge share	20	0.5%	1.1
Average age vs national baseline	10	40 years vs 48 nationally	0.0
Traffic-data completeness	5	208,430 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	7.4%
State Poor-Condition Share	8.8%
National Poor-Condition Share	6.7%
County Scour-Critical Share	0.5%
Average Bridge Age	40 years
Poor-Condition Traffic Exposure	10,256 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeUS 136 E over Rock CR — 2,887 vehicles/day Oldest Listed BridgeN AVE over Rock CR — built in 1910 All County BridgesBrowse every bridge record in Atchison County.

Top Bridges to Watch in Atchison County

Bridge	Reason	Condition	Daily Traffic	Year Built
US 136 E over Missouri Rvr Abandoned	Poor condition + traffic exposure	Poor	2,100	1938
US 136 E over Rock CR	Poor condition + traffic exposure	Poor	2,887	1970
US 136 E over Is 29	Poor condition + traffic exposure	Poor	2,350	1969
US 59 S over CR	Poor condition + traffic exposure	Poor	1,739	1922
US 275 S over E Fk High CR	Poor condition + traffic exposure	Poor	753	1929
US 275 S over W Fk High CR	Poor condition + traffic exposure	Poor	226	1929
RT W S over Is 29	Poor condition + traffic exposure	Poor	75	1973
RT F S over Rock CR	Poor condition + traffic exposure	Poor	46	1962
T AVE over Trib Of Tarkio Rvr	Poor condition + traffic exposure	Poor	25	1940
K AVE over Rock CR	Poor condition + traffic exposure	Poor	20	2010

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.