Froschgrundsee, also known as Schönstädtspeicher, is a retention basin to protect the city of Coburg in Bavaria from the flooding of the Itz, Effelder, and the Grümpen. It lies in the municipality of Rödental in Upper Franconia. Froschgrundsee was completed in 1986 after four years of construction and cost 43 million DM in operations.[1]

Froschgrundsee
Froschgrundsee in 2009 with the Froschgrundsee Bridge in the background
Coordinates50°21′0″N 11°1′42″E / 50.35000°N 11.02833°E / 50.35000; 11.02833
Construction began1982
Opening date1986
Dam and spillways
Height (foundation)18 m
Height (thalweg)3407 m
Length350 m
Elevation at crest359 m
Width (crest)9 m
Dam volume420000 m3
Reservoir
Total capacity69 Mio. m3
Active capacity66 Mio. m3
Catchment area11084 km2
Surface area94 ha
Normal elevation3445 m


References

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  1. ^ "Archived copy" (PDF). Archived from the original (PDF) on 2016-03-04. Retrieved 2016-12-07.{{cite web}}: CS1 maint: archived copy as title (link)