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HomeKansasHarper County › NW 20 Ave P-1.8 over Sand Creek

NW 20 Ave P-1.8 over Sand Creek

Harper County, Kansas · rated Fair in the 2025 National Bridge Inventory

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled

View this bridge on a map → (37.37331, -98.07639)

Component ratings

ComponentRating (2025)FHWA scale meaning
Deck6Satisfactory condition
Superstructure6Satisfactory condition
Substructure6Satisfactory condition

Bridge details

StructureConcrete through arch
Lengthabout 89 ft
Location0.8S of Duquoin
NBI structure number000390739006608
Condition classFair

Source: FHWA National Bridge Inventory, 2025 data as reported by the Kansas department of transportation.

Busiest bridges in Harper County

BridgeBuiltVehicles/dayCondition
K2 Hwy over Spring Creek Drainage19593,406Good
K-2 Hwy over East Sand Creek Drainage19922,657Good
K2 Hwy over East Sand Creek Drainage19372,616Good
K2 Hwy over East Spring Creek19372,616Good
K2 Hwy over Chikaskia River19902,616Good
K-2 Hwy over BNSF Railroad19922,544Good

All bridges nearby: Harper County, KS bridge conditions · every bridge in Harper County · Kansas bridges.

Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.