Home › North Dakota › Mountrail County › County Highway over Cottonwood Lake

County Highway over Cottonwood Lake

Mountrail County, North Dakota · rated Poor in the 2025 National Bridge Inventory

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

County Highway over Cottonwood Lake in Mountrail County, North Dakota, is rated in poor condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the superstructure, rated 4 (poor condition) on the 0-9 scale.
It was built in 1946, making it 79 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 1 of the 28 inventoried bridges in Mountrail County rated poor (3.6%); 1 (3.6%) are rated poor.
A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.

Component ratings


Structure	Steel stringer or multi-beam girder
Length	about 85 ft
Location	6 North 1 East Manitou
NBI structure number	000000031114080
Condition class	Poor

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

Bridge	Built	Vehicles/day	Condition
Irrfb Nd Hiway 23 over Crane Creek	2012	7,340	Good
Irrfb Nd Hiway 23 over Creek	1995	5,510	Good
Irrfb Nd Hiway 23 over Shell Creek	2012	4,885	Good
Irrfb Nd Hwy 23 over Creek	2013	3,165	Good
Irrfb Nd Hiway 23 over Creek	1993	2,600	Good
Nd Highway 8 over Little Knife River	1985	2,110	Good