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County Highway over South Branch Park River

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

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

County Highway over South Branch Park River in Walsh 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 1988, making it 37 years old at the 2025 inventory.
It carries about 145 vehicles a day (traffic count year 2017).
Its listed owner is the county highway agency.
It is one of 68 of the 257 inventoried bridges in Walsh County rated good (26.5%); 54 (21.0%) 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	Continuous prestressed concrete single box beam
Length	about 94 ft
Location	5 West of Grafton
NBI structure number	000000050136081
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
Nd Highway 17 over Creek	1981	3,870	Good
Nd Highway 17 over Drain	2018	3,870	Good
US Highway 81 over Park River	1971	3,270	Fair
US Highway 81 over Grafton Flood Deversion	2018	3,270	Good
US Highway 81 over Drainage Ditch	1995	2,550	Good
US Highway 81 over Creek	1951	2,490	Fair