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Interstate 29 over 13TH Ave S Interchange

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

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

Interstate 29 over 13TH Ave S Interchange in Cass 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 deck, rated 5 (fair condition) on the 0-9 scale.
It was built in 2002, making it 23 years old at the 2025 inventory.
It carries about 21,065 vehicles a day (traffic count year 2019).
Its listed owner is the state highway agency.
It is one of 159 of the 369 inventoried bridges in Cass County rated fair (43.1%); 12 (3.3%) 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 235 ft
Location	1 North of I-94 - Fargo
NBI structure number	0029064252 L
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
45TH Street Fargo over I-94/45TH Street Intchg.	1991	50,840	Fair
Ramp to I-94 EB over I-29 I-94	1993	49,800	Fair
Interstate 94 over US 81	1993	49,800	Fair
Interstate 94 over 5TH St Separation	1993	49,800	Fair
Interstate 94 over Interstate 29	2003	48,335	Fair
Interstate 94 over Interstate 29	2003	48,335	Good