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River Boulevard over Big Sioux River

Minnehaha County, South Dakota · rated Poor in the 2025 National Bridge Inventory

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

River Boulevard over Big Sioux River in Minnehaha County, South Dakota, is rated in poor condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 4 (poor condition) on the 0-9 scale.
It was built in 1975 and reconstructed in 1989, making it 50 years old at the 2025 inventory.
It carries about 5,300 vehicles a day (traffic count year 2022).
Its listed owner is a city or municipal highway agency.
It is one of 36 of the 394 inventoried bridges in Minnehaha County rated poor (9.1%); 36 (9.1%) 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	Continuous prestressed concrete girder and floorbeam
Length	about 407 ft
Location	W of Southeastern Avenue
NBI structure number	000000050214215
Condition class	Poor

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

Bridge	Built	Vehicles/day	Condition
I229 over Ck	1959	43,830	Fair
West 12TH Street over Big Sioux River	1997	40,100	Good
E 10TH St over I229	1995	35,954	Fair
I229 over W 57TH St	1995	34,780	Good
I029 S over Skunk Ck	1989	33,310	Fair
I029 N over Skunk Ck	1989	33,310	Fair