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463RD Avenue over Creek

Roberts County, South Dakota · rated Fair in the 2025 National Bridge Inventory

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled

View this bridge on a map → (45.40858, -96.94395)

Component ratings

ComponentRating (2024)Rating (2025)FHWA scale meaning
Deck66Satisfactory condition
Superstructure55Fair condition
Substructure66Satisfactory condition

Bridge details

StructureSteel stringer or multi-beam girder
Lengthabout 36 ft
Location4.3W of Wilmot
NBI structure number000000055140363
Condition classFair
Traffic status (item 41)Posted for load
Last inspection (item 90)June 2024
Inspection interval (item 91)24 months
Scour (item 113)U: unknown foundation, not evaluated for scour

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

Busiest bridges in Roberts County

BridgeBuiltVehicles/dayCondition
Irr SD010 over Ck20197,072Good
Irr SD010 over Ck19796,275Fair
458TH Avenue over Creek19415,850Fair
458TH Avenue over Creek19415,850Fair
459TH Avenue over Creek19415,850Good
Irr I029 over Big Spring Ck19785,340Fair

All bridges nearby: Roberts County, SD bridge conditions · every bridge in Roberts County · South Dakota bridges.

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