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Nd Highway 21 over Creek

Grant County, North Dakota · rated Fair in the 2025 National Bridge Inventory

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled

View this bridge on a map → (46.41821, -101.48286)

Component ratings

ComponentRating (2024)Rating (2025)FHWA scale meaning
Culvert66Satisfactory condition

Bridge details

StructureConcrete culvert
Lengthabout 34 ft
Location4 East of Carson
NBI structure number0021094150
Condition classFair
Traffic status (item 41)Open, no restriction
Last inspection (item 90)July 2024
Inspection interval (item 91)48 months
Scour (item 113)8: foundations stable, scour above the top of the footing

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

Busiest bridges in Grant County

BridgeBuiltVehicles/dayCondition
Nd Highway over Creek1950950Fair
Nd Highway over Branch-antelope Creek1952700Fair
Nd Highway 49 over Antelope Creek1988580Good
Nd Highway 31 over Dogtooth Creek2024420Good
Nd Highway 49 over Cannonball River1970420Fair
Nd Highway 49 over Creek1970380Good

All bridges nearby: Grant County, ND bridge conditions · every bridge in Grant County · North Dakota bridges.

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