Beginning on Friday (Dec. 5, 2025) the southbound on- and off-ramps at Cliff Avenue (exit 4) on Interstate 229 are scheduled to reopen to traffic. Motorists are advised that while the southbound on-ramp will reopen, it will only be accessible from southbound Cliff Avenue.
Drivers using the southbound off-ramp will be able to access both northbound and southbound Cliff Avenue. These ramps were fully reconstructed as part of the overall interchange reconstruction project at Cliff Avenue (exit 4). Motorists are reminded to use caution and reduce their speed while workers and equipment are present.
The overall completion date for this $48 million project is June 2027.
Find additional information about this project on the SDDOT website at https://dot.sd.gov/i229exit4.
For the latest on road and weather conditions, road closures, construction work zones, commercial vehicle restrictions, and traffic incidents, please visit https://sd511.org or dial 511.
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