After Nurnburg this morning, we enjoyed an onboard lecture this afternoon about this amazing canal system and actually had our guide/lecturerer with us as we experienced the highest lock at elevation
1332 ft. above sea level. This is the highest elevation on earth that transports commercial water traffic.
A canal connecting these waterways is not a new idea as Charlemagne tried it in the 8th Century, Napoleon also tried, but not until nearly two centuries later was the Main-Danube Canal between Bamberg and Kelheim completed. This 106 mile stretch was needed to complete a nearly 2200 mile long waterway transversing 13 countries between Rotterdam in the Netherlands and Constanta in Romania and the Black Sea. You really need to study your geography map to truly appreciate the impact of this waterway for commercial purposes and now for the tourism industry. About 5,000 commercial vessels use this waterway each year and this accounts for only 10 % of the waterway capacity. As we have often waited to transverse the 68 locks, we can't imagine 100% capacity. The rivers would be wall- to- wall ships and barges.
To appreciate the lock system, you need to envision our ship rising the 1332 feet from Amsterdam via a series of " water steps". Each step ( lock ) lifting our ship a distance of 25-94 feet each time. The lifting continues until we reach the European Contintental Divide at 1332 feet altitude. We traverse a few miles at this altitude until we start down toward the Danube River and now each step ( lock) lowers us 25-55 feet each step.
This illustration shows our ship entering at the lower level.
The lock filling with water......
And we exit 25-94 feet higher and continue our journey.
Look closely as Chuck
is in the photo at the bottom, giving you some perspective
as to the size and scope of the locks. This one is probably 94 feet lift.
The entire system is an engineering marvel and if you want more technical information how this actually works, how much water it takes, where the water comes from and how long it takes for each lock, google Main-Danube Canal. Each lock is 620 feet long and 39 feet wide, which as you can easily see, dictates the width of our ship. There is about 6" clearance on each side. If you are in your cabin while the ship is in the lock, it becomes eerily dark and the lock walls look like some kind of medieval prison.