Directions Directions from 6th Avenue:drive north onto Johnson Road at the light at 6th Avenue. Go past the Administration and Courts Building and make your first left onto Jefferson County Parkway. Continue heading east and you will see the Dakota Building on your left. If you have reached 6th Avenue again you have gone too far. Park on the east side of the parking lot and enter through the glass door labeled Number 5. Directions from C-470 heading north: take the 6th Avenue exit and then the 6th Avenue east exit. Drive straight through the light (you are now on Johnson Road). Take your first right at the Dakota Building and park on the east side of the parking lot and enter through the glass door labeled Number 5. Hours of Operation Monday through Friday 8 a.m. to 5:30 p.m. Closed Sheriff's Office facilities are closed to the public on all legal holidays.