Home › South Dakota › Brown County › Second Street over First Ave NW

Second Street over First Ave NW

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

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

Second Street over First Ave NW in Brown County, South Dakota, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 6 (satisfactory condition) on the 0-9 scale.
It was built in 2003, making it 22 years old at the 2025 inventory.
It carries about 11,055 vehicles a day (traffic count year 2022).
Its listed owner is a city or municipal highway agency.
It is one of 95 of the 170 inventoried bridges in Brown County rated fair (55.9%); 20 (11.8%) 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	Steel stringer or multi-beam girder
Length	about 61 ft
Location	0.6 N Jct US12 - Aberdeen
NBI structure number	000000007112325
Condition class	Fair

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 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
US281 over Foot Ck	1971	3,968	Fair