Big Sioux River at Sioux Falls Western Avenue

1. 20.00 ftMany of the remaining levees between Skunk Creek and Western Ave are overtopped resulting in catastrophic flooding.
2. 19.00 ftThe lowest portions of 57th St begin to flood with significant flooding ongoing in southern Sioux Falls in areas nearest the river.
3. 18.50 ftThe lower levees below Skunk Creek and above the Western Avenue gage will be overtopped.
4. 16.50 ftNumerous homes in southern Sioux Falls, especially between Minnesota Ave and S Phillips Ave, are in danger of flooding. The on and off ramps of I-229 at Cliff Ave begin to flood.
5. 14.50 ftSome houses in the W Twin Oaks Rd and Rose Street areas near South Minnesota Avenue may be at risk to begin flooding.
6. 14.00 ftThe bridge into Yankton Trail Park off of 57th St may be overtopped.
7. 13.50 ftWater approaches Cliff Ave north of the bridge and may begin to flood the lowest portions.
8. 11.00 ftThe entrances to Yankton Trail and Spencer Parks begin to flood.
9. 10.00 ftCity parks in southern Sioux Falls begin to have significant flooding.
10. 9.00 ftThe camp south of 26th St begins to flood as does portions of Tomar Park.
11. 8.00 ftFlooding begins to affect Spencer Dog Park and the lower portions of Tuthill Park in southern Sioux Falls. The access road under 26th St begins to flood.
12. 6.50 ftThe lowest portion of the bike trail near Spencer Dog Park may begin to flood as well as the lowest portions of the recreation fields off of 57th and Western Ave.

Most recent crests

• July 10, 2025: 3.65 ft
• June 22, 2024: 15.44 ft
• April 9, 2023: 5.56 ft
• August 7, 2022: 5.73 ft
• August 28, 2021: 8.94 ft
• March 28, 2020: 5.45 ft
• March 14, 2019: 16.90 ft
• September 21, 2018: 12.00 ft
• August 21, 2017: 8.04 ft
• September 15, 2016: 8.98 ft

• UpstreamBig Sioux River at Sioux Falls Maple Street
• DownstreamBig Sioux River at Sioux Falls N. Cliff Avenue
• Skunk Creek at Sioux Falls
• Silver Creek at Sioux Falls
• Big Sioux River at Sioux Falls I-90
• Big Sioux River
• Willow Creek at Crooks
• Big Sioux River at Brandon

Forecasts by the Missouri Basin River Forecast Center. Forecasts are not available. Only observed stages are available for this point. No forecasts are available for this location Gauge reading may be affected by ice.

Stage, flood stages, impacts and crest history from NOAA’s National Water Prediction Service. Streamflow and the daily record from the U.S. Geological Survey.