Global InformationHerrenwieser Schwallung information
| Herrenwieser Schwallung | |
|---|---|
 Downstream side | |
| Location | Forbach, county of Rastatt, Baden-Württemberg, Germany; Northern Black Forest |
| Coordinates | 48°39′20″N 8°17′25″E / 48.65569°N 8.29027°E |
| Construction began | 1844 |
| Dam and spillways | |
| Impounds | Schwarzenbach |
| Reservoir | |
| Total capacity | 25,000 m3 |
| Catchment area | 9.6 km2 |
The Herrenwieser Schwallung is a splash dam, built in 1844–47 of bunter sandstone, near Herrenwies in the Black Forest, which impounds the waters of the Schwarzenbach stream into a pond. In the days of timber rafting it was periodically opened and washed the fallen logs or timber rafts downstream into the valley. Today the dam acts as a bridge over the Schwarzenbach.