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Csah 1 over Pisgah Reservoir

Otter Tail County, Minnesota · rated Good in the 2025 National Bridge Inventory

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

Csah 1 over Pisgah Reservoir in Otter Tail County, Minnesota, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the superstructure, rated 7 (good condition) on the 0-9 scale.
It was built in 2011, making it 14 years old at the 2025 inventory.
It carries about 4,700 vehicles a day (traffic count year 2019).
Its listed owner is the county highway agency.
It is one of 59 of the 148 inventoried bridges in Otter Tail County rated good (39.9%); 11 (7.4%) 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	Prestressed concrete stringer or multi-beam girder
Length	about 460 ft
Location	0.5 Mi NE Jct Isth 94
NBI structure number	56539
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
I 94 over Otter Tail River	1960	17,300	Fair
Msas 104 over Ottertail River	2002	11,700	Good
I 94 over Csah 88	1964	9,100	Fair
Msas 104 over Otv Railroad	1939	8,700	Fair
US 10 over Otter Tail River	1972	8,640	Good
I 94 over Csah 88	1964	8,156	Fair