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Interstate 94 over Bn Railroad Separation

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

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

Interstate 94 over Bn Railroad Separation in Kidder 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 superstructure, rated 5 (fair condition) on the 0-9 scale.
It was built in 1958 and reconstructed in 1988, making it 67 years old at the 2025 inventory.
It carries about 3,150 vehicles a day (traffic count year 2020).
Its listed owner is the state highway agency.
It is one of 9 of the 10 inventoried bridges in Kidder County rated fair (90.0%); 0 (0.0%) 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	Continuous prestressed concrete stringer or multi-beam girder
Length	about 242 ft
Location	6 West of Nd 30
NBI structure number	0094222290 R
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
Interstate 94 over Bn Railroad Separation	1958	3,150	Fair
Nd Highway 3 over I-94/STEELE Interchange	1966	700	Fair
Nd Highway 3 South over I-94/DAWSON Interchange	1966	650	Fair
County Highway over I 94-tappen Interchange	1958	250	Fair
County Highway over I 94-crystal Springs Int	1958	130	Fair
County Highway over I94/LONG Lake Inter	1966	110	Fair