Sioux Falls Scheduled Water System Test
The city will simulate a shutdown at a water connection on Benson Road to support infrastructure expansion.
Updated on Oct. 14, 2026 in Utilities

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Sioux Falls has scheduled a controlled water system simulation for October 14, 2026. This test at the Benson Road connection is necessary to prepare for the activation of a third Lewis and Clark Regional Water System connection.
Why it matters
The city is conducting this test to strengthen its drinking water supply as it works to accommodate ongoing population growth. The simulation ensures that upcoming infrastructure upgrades can be integrated safely.
The simulation will take place from 12:00 pm to 5:00 pm, while the upcoming construction project near 12th Street is expected to last approximately 10 days.
The players
Sioux Falls Fire Rescue
This department is the primary fire and emergency services agency for the city of Sioux Falls.
Lewis and Clark Regional Water System
This entity provides a reliable supply of drinking water to member cities and rural water systems across South Dakota, Iowa, and Minnesota.
The details
Crews will simulate a system shutdown on Benson Road to facilitate the future activation of a new connection. Sioux Falls Fire Rescue and affected commercial clients have been notified to coordinate on potential fire suppression system impacts.
Timeline
October 14, 2026, 12:00 pm to 5:00 pm
Mid-November 2026
Market Landscape
This project reflects the broader push for municipal infrastructure modernization to support sustained urban growth. It positions the city to maintain service capacity against rising demand while upgrading legacy network connections.
Residents and businesses in Foundation Park may experience temporary water pressure changes during the test. Water will remain safe to drink throughout the entire simulation window.
The takeaway
Residents should be aware that water pressure may fluctuate briefly during the afternoon hours on October 14. For inquiries regarding specific impacts on facilities, residents can contact the Public Works department at 605-367-8600.
What happens next
Construction of the third connection near 12th Street is scheduled to begin in mid-November 2026, with the project expected to span 10 days.
Further reading
For more information on infrastructure planning and maintenance, visit Utilities.
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