South Dakota is changing speed limits on several highways in Brown County to improve safety. The most significant change reduces the speed limit on a 4.35-mile stretch of U.S. Highway 12 east of Aberdeen from 55 mph, and eliminates a 3.27-mile segment that previously allowed 65 mph. The rule also makes minor formatting updates (writing out numbers like "fifty-five" instead of using numerals) and adjusts speed limits on other county routes, though most speeds remain the same or similar to current limits.
AI-generated from the adopted rule text — verify against the official documents.
The department is proposing amendment to ARSD 70:01:02:03 - Brown County speed zone rule. The proposed rule amendments will reduce the speed limit on U.S. Highway 12 from the east side of Aberdeen to Bath. The purpose of this rule change is to enhance safety.