Neckar Canal Kochendorf
| Neckar Canal Kochendorf | |
|---|---|
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| Basic data | |
| Water code : | DE / 238594 |
| Start: | Bad Friedrichshall , Baden-Wuerttemberg |
| The End: |
Neckarsulm , near the A 6 motorway bridge, Baden-Württemberg |
| Use: | channel |
| Construction year: | 1923 |
| Waterway: | Neckar |
| Waterway kilometers: | 102.85 |
| Technical specifications | |
| Congestion destination above sea level: | 150.86 m |
| Water depth: | 3.00 m |
| Width: | 36.00 m |
| Total length of the channel: | 4.00 km |
The Neckar Canal Kochendorf is a side canal of the Neckar in the southern part of the city of Bad Friedrichshall , the water level of which is regulated by the Neckarsulm weir system . Seen in the direction of flow, it extends from the motorway bridge of the A6 at the level of Heilbronn harbor to the mouth of the Kocher not far from the Kochendorf lock . In the 1960s, due to the increased shipping traffic, the original trapezoidal profile of the side channel was changed on the right-hand side, seen in the direction of the Neckar, by adding a sheet pile wallinto a rectangular profile. At the same time, the bottom of the canal was lowered to a depth of 3 m. The left bank has remained unchanged to this day.
Due to limited fairway widths, curve radii and shallow water depths, it is still only possible to navigate the Neckar Canal Kochendorf in sections with restrictions.
On the left bank, a dam densely covered with grasses, trees and shrubs separates the side canal from the Altneckar.
Construction work
With the increasing size of the ships and the subsequent upgrading of the Neckar for 135 m ships up to the port of Heilbronn, the required safety distances between ships and between ship and bank can no longer be maintained for a short time. The bank is already exposed to greater stress and is being damaged as a result. The resulting undercuts impair the stability of the embankment and the side embankment. Therefore measures to secure the left bank of the side canal are urgently required.
Channel cross-section
The construction measure therefore includes the installation of a bank sheet pile wall, seen against the direction of flow of the Neckar, starting from the wing wall of the Kochendorf power plant over a length of 2.90 km. This converts the existing trapezoidal profile of the side channel into a rectangular profile. The installation of the sheet pile wall also increases the water level (from bank to bank) to up to 42 m and the canal-side embankment is secured. Furthermore, the installation of a sheet pile wall in the middle of the embankment with an associated additional increase in the stability of the embankment and the embankment in the event of high water levels is part of the construction project. As an additional stability measure for the embankment, the embankment is nailed on the Neckar side with ground anchors and a surface reinforcement, viewed in the direction of flow of the Neckar, starting from the heavyweight wall in front of the Neckarsulm weir over a length of 800 m.
Lowering the channel bottom
Since in the past there were repeated groundings in the event of ship encounters, the WSA Heidelberg has issued a ban on encounters. The ban on encounters leads to loss of time and represents an unacceptable impairment for shipping. For this reason, the source of danger is defused by lowering the canal floor to a depth of at least 3.50 m. To create the required water depth in front of the bank wall, parts of the existing slope seal made of concrete or natural stone paving are removed. A new 30 cm thick concrete seal is applied to the bottom and connected to the new bank wall as well as to the remainder of the existing bottom seal.
In addition, exit ladders are attached to the bank sheet pile wall every 50 m.
The widening and deepening of the fairway in accordance with the guidelines for standard cross-sections of shipping canals increases the safety and ease of shipping and serves to maintain the shipping route.
Estimated construction time
This construction project is expected to be implemented between 2014 and 2016.
Overview
For other structures see the list of Neckar barrages .
Web links
Coordinates: 49 ° 11 ′ 45.6 ″ N , 9 ° 13 ′ 0.5 ″ E