The flood of the polder Land van Maas en Waal in 1805

Provided by: H. J. A. Berendsen (Utrecht University)

Total Time: = 1'07" (2.6 Mb)

The flood of the polder Land van Maas en Waal in 1805 was simulated (Ph.D. study by A.W. Hesselink) using the FLS-model of Delft Hydraulics (WL). The model was calibrated using historical data of the flood. The four pictures below show the situation:

(Above) Just after the dike breach on February 13, 1805, 6:00 AM.

(Above) At 5:00 PM that same day, most of the eastern part of the polder was flooded, with the exception of the Late Pleistocene eolian dunes, that reach up to 20 m above sealevel (most of the polder is at 10 m above sealevel or lower).

(Above) Shows the situation on February 14, at 9:00 AM.

(Above) Shows the situation on February 17 at 12:00 AM.

The floodwaters first followed the ditches and canals. The curve at the bottom in each picture shows the water level fluctuation over time.

The .avi file is a movie showing the dike breach and subsequent flooding.

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