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I229 N over Big Sioux Rv

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

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

I229 N over Big Sioux Rv in Minnehaha 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 2001, making it 24 years old at the 2025 inventory.
It carries about 14,649 vehicles a day (traffic count year 2024).
Its listed owner is the state highway agency.
It is one of 195 of the 394 inventoried bridges in Minnehaha County rated fair (49.5%); 36 (9.1%) 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	Continuous prestressed concrete stringer or multi-beam girder
Length	about 431 ft
Location	0.4 N Rice St Interch
NBI structure number	000000050219192
Condition class	Fair

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