I-229 Southbound Ramps at Cliff Avenue to Reopen December 6th

Motorists in sioux Falls will have full access to Interstate 229 at Cliff Avenue starting Friday, December 6th, 2025. The southbound on- and off-ramps,which have been closed for construction,are scheduled to reopen to traffic. This restoration will improve traffic flow and connectivity for commuters and travelers in the area.

The closures were necessary to facilitate ongoing improvements to the I-229 corridor. These improvements aim to enhance safety and accommodate increasing traffic volumes. The South Dakota Department of Transportation (SDDOT) has been working diligently to complete the project as quickly and efficiently as possible.

Drivers should be aware that while the ramps are reopening, some lane restrictions may still be in place in the immediate vicinity as finishing work continues. Motorists are advised to exercise caution and be prepared for potential delays. Always adhere to posted speed limits and traffic control signage.

The reopening of these ramps marks a significant step in the completion of the I-229 project. The SDDOT anticipates further updates regarding any remaining construction activities will be provided as they become available.

Key Takeaways

• the southbound on- and off-ramps at I-229 and Cliff Avenue in Sioux Falls will reopen on December 6th, 2025.
• the closures were part of a larger project to improve safety and traffic flow on I-229.
• Motorists should expect potential lane restrictions and exercise caution in the area.
• The South Dakota Department of Transportation (SDDOT) is overseeing the project.

Source: South Dakota Department of Transportation