The County does not expect the speed limit to change. Speed limits are determined by Minnesota state laws and the state Commissioner of Transportation, not by county officials. Drivers choose speeds based on their available sightlines and abilities to react to potential hazards. Posting a higher or lower speed limit has not been shown to significantly affect prevailing speeds. It is standard Washington County practice to request a new speed study after any major project is complete to ensure that the posted speed limit is appropriate for the new conditions.