Froschgrundsee
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.
| Froschgrundsee | |
|---|---|
Froschgrundsee in 2009 with the Froschgrundsee Bridge in the background | |
| Coordinates | 50°21′0″N 11°1′42″E |
| Construction began | 1982 |
| Opening date | 1986 |
| Dam and spillways | |
| Height (foundation) | 18 m |
| Height (thalweg) | 3407 m |
| Length | 350 m |
| Elevation at crest | 359 m |
| Width (crest) | 9 m |
| Dam volume | 420000 m3 |
| Reservoir | |
| Total capacity | 69 Mio. m3 |
| Active capacity | 66 Mio. m3 |
| Catchment area | 11084 km2 |
| Surface area | 94 ha |
| Normal elevation | 3445 m |
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