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78th Avenue over Branch Knife River

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

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

78th Avenue over Branch Knife River in Stark County, North Dakota, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the substructure, rated 6 (satisfactory condition) on the 0-9 scale.
It was built in 1960, making it 65 years old at the 2025 inventory.
It carries about 20 vehicles a day (traffic count year 2018).
Its listed owner is the county highway agency.
It is one of 87 of the 156 inventoried bridges in Stark County rated fair (55.8%); 8 (5.1%) are rated poor.
A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.

Component ratings


Structure	Prestressed concrete multiple box beam
Length	about 40 ft
Location	10 E 4 N of Richardton
NBI structure number	000000045154050
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
State Highway 22 over I-94/ND 22 Interchange	1964	19,000	Fair
Nd Highway 22 over Creek	1953	15,940	Fair
Nd Highway 22 over Heart River	1931	9,940	Fair
I-94 Business Loop over Creek	1949	8,690	Fair
Nd Highway 22 over Green River	2012	7,155	Good
Interstate 94 over Co Hwy/zenith Separation	2016	5,205	Good