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123RD Ave over Knife River

Billings County, North Dakota · rated Good in the 2025 National Bridge Inventory

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

123RD Ave over Knife River in Billings County, North Dakota, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
It was built in 1982, making it 43 years old at the 2025 inventory.
It carries about 80 vehicles a day (traffic count year 2018).
Its listed owner is the county highway agency.
It is one of 37 of the 60 inventoried bridges in Billings County rated good (61.7%); 2 (3.3%) are rated poor.
A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.

Component ratings


Structure	Prestressed concrete single box beam
Length	about 71 ft
Location	6 East 3 North Fairfield
NBI structure number	000000004127060
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
Interstate 94 over Sheep Creek	1964	2,600	Fair
Interstate 94 over West River Rd. Int.	1968	1,525	Fair
Interstate 94 over West River Rd. Int.	1968	1,525	Fair
Interstate 94 over Little Missouri R.	1964	1,300	Fair
Interstate 94 over Little Missouri R.	1964	1,300	Fair
Interstate 94 over Sheep Creek	1964	1,300	Fair