MileCheckUS 16A closed near Keystone for bridge removal
Scheduled. Not closed yet. SD511 lists it. Last checked Sep 30, 2026.
From October 5, 2026, no reopening date posted. Removing the old bridge.
| Road | US 16A, South Dakota |
| Where | US 16A near Keystone in the Black Hills, mile 56.9 |
| Mile markers | 56.9 to 57 |
| Direction | Both directions |
| Source | SD511, record SD-12907881 |
Getting around it
SDDOT says a detour will be posted.
When is US 16A closed?
From October 5, 2026. SDDOT has not posted a reopening date. Dates come from SD511, the South Dakota DOT feed, and can change.
Where is the US 16A closure?
US 16A, US 16A near Keystone in the Black Hills, mile 56.9, South Dakota. Both directions.
How do I get around it?
SDDOT says a detour will be posted.
Before you drive
Dates on long closures move. Check SD511 for changes. For everything else on the road today, see South Dakota road conditions and the road closures map.
This page comes from the same state DOT feed the MileCheck app uses. The app shows your mile marker as you drive, so you know how far you are from a closure like this one.