Local traffic must be able to pass freely. The speed limit is 55 unless other wise marked for certain curves. Around the bridge, it is lowered to 45. We don't recommend that you park on the side of the road. The causeway was constructed on a waterway and is always nearly saturated.
Wind driven high tides or even a little rain can cause hazardous soft spots.
Animal burrows and tunnels can sink, leaving a vehicle immobilized. There is also a hazard when car doors swing out into traffic. It is best to stop at the observation deck, mentioned below. When you come to the sign that lowers the speed limit to 45, you are approaching the bridge which crosses Corey's Ditch. It was built in 1936.