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122ND Street over Crow Creek Ditch

Brown County, South Dakota · rated Good in the 2025 National Bridge Inventory

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

122ND Street over Crow Creek Ditch in Brown County, South 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 2012, making it 13 years old at the 2025 inventory.
It carries about 98 vehicles a day (traffic count year 2022).
Its listed owner is the county highway agency.
It is one of 55 of the 170 inventoried bridges in Brown County rated good (32.4%); 20 (11.8%) 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 tee beam
Length	about 55 ft
Location	5.5E & 0.5N of Columbia
NBI structure number	000000007255220
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
US012 over Moccasin Ck	1954	21,635	Poor
Second Street over First Ave NW	2003	11,055	Fair
Second Street over Burlington Northern RR	2003	11,055	Fair
Second Street over Railroad Ave SW	2003	11,055	Fair
3RD Avenue SE over Moccasin Creek	2019	5,087	Good
US281 over BNSF Railroad	2001	4,468	Fair