|Yellow bull noses|
|In the lock chamber|
When the final water level is reached the front lock doors will open slowly. Do not paddle out of the lock yet. Wait again for the toot of the horn and the change of the traffic light. If there is any barge waiting on the other side the lock master will inform you and usually radio ahead so that the barge captain is looking out for you. If the dam releases water when you are leaving the lock this will create huge waves. Be prepared to paddle fast to get out of the danger zone and don't get too close to the outside lock wall. The waves will calm down after a couple of hundred metres.
here. If you don't have these phone numbers your only way of attracting the lock master's attention is by pulling the cord in the lock wall. But for various reasons you might not be able to get there. The water might be too choppy to reach or you might get stuck behind a barge. Also if in doubt about what to do always call the lock master and ask for instructions. For example you might approach the lock together with a barge. If in doubt do not proceed but call ahead. Commercial barge traffic always has priority over paddlers but usually the lock masters will try to squeeze you in - after radioing the barge for permission to do so.
If you arrive at a lock behind a barge you will be stuck. Single or short barges take only 20 minutes to get locked through, but the normal double barges have to be taken apart and the whole process takes two hours. The lock master will tell you where to wait and how long it will take. The lock masters and their assistants are usually very friendly towards paddlers - as long as you follow the rules.