Home › North Dakota › Grant County › 64th St SW over Antelope Creek

64th St SW over Antelope Creek

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

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled August 20, 2026

64th St SW over Antelope Creek in Grant County, North Dakota, is rated in poor condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the substructure, rated 4 (poor condition) on the 0-9 scale.
It was built in 1967, making it 58 years old at the 2025 inventory.
It carries about 10 vehicles a day (traffic count year 2018).
Its listed owner is the county highway agency.
It is one of 6 of the 59 inventoried bridges in Grant County rated poor (10.2%); 6 (10.2%) are rated poor.
A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.

Component ratings


Structure	Prestressed concrete multiple box beam
Length	about 40 ft
Location	3 North 2 West of Carson
NBI structure number	000000019123170
Condition class	Poor

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

Bridge	Built	Vehicles/day	Condition
Nd Highway over Creek	1950	950	Fair
Nd Highway over Branch-antelope Creek	1952	700	Fair
Nd Highway 21 over Creek	1994	590	Fair
Nd Highway 49 over Antelope Creek	1988	580	Good
Nd Highway 31 over Dogtooth Creek	2024	420	Good
Nd Highway 49 over Cannonball River	1970	420	Fair