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Csah 21 over Stream

Washington County, Minnesota · rated Fair in the 2025 National Bridge Inventory

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

Csah 21 over Stream in Washington County, Minnesota, 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 1980, making it 45 years old at the 2025 inventory.
It carries about 1,277 vehicles a day (traffic count year 2022).
Its listed owner is the county highway agency.
It is one of 61 of the 113 inventoried bridges in Washington County rated fair (54.0%); 4 (3.5%) 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	Prestressed concrete tee beam
Length	about 78 ft
Location	3.4 Mi S of Jct Csah 20
NBI structure number	82509
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
I 494 over Mississippi R; UP RR	2008	51,236	Good
I 494 over Mississippi R; UP RR	2003	51,236	Fair
I 694 over I 94; Collector Roads	2020	45,534	Good
I 494 over Csah 25 (century Ave)	1960	45,500	Fair
I 694 over I 94; Collector Roads	2019	43,894	Good
I 94 over Th 95	1982	43,000	Fair