The Steinbach barrage (Main km 200.80) has a retaining length of 18.79 km (main section). It consists of (from left to right in the direction of flow) a large shipping lock, a boat lock with an adjacent fish ladder, a movable weir, and a hydroelectric power plant. The left and right banks are connected by a weir bridge accessible to the public.

The weir was commissioned in 1939 and consists of three bays, each 30 m wide. The weir is regulated by three different weir gates. The left weir bay contains a standard roller gate, the middle weir bay contains a three-barrel gate with a flap, and the right weir bay also contains a standard roller gate. The maximum head is 5.14 m.

The theoretical service life of the weir of 80 years has already been exceeded. For years, there has been increasing damage and signs of wear to the solid structure, the weir gates, and the electrical and control systems. Investigations conducted in recent years show that the weir requires comprehensive overhaul, including the replacement of all closures.

The Steinbach weir is one of a group of six weirs on the Main River that urgently require action. Planning for the Erlabrunn, Harrbach, Rothenfels, Freudenberg, and Faulbach weirs is ongoing in parallel.

Further studies have shown that a complete overhaul of the weir, including the replacement of the closures with pressure segment closures, is more economical than a new construction or other comprehensive overhaul options. This will ensure that the weir is fit for a further 100 years of operation.

Source: wna-aschaffenburg.wsv.de/Webs/WNA/WNA-Aschaffenburg/DE/Projekte/Projekte_am_Main/Wehre/SB_2_Wehr_Steinbach/steinbach_node.html

Translated by Google •

Jasmin Kohlhepp

July 10, 2020

July

Translated by Google •

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Elevation 200 m

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Monday 29 December

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Max wind speed: 10.0 km/h

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Location: Lohr a. Main, Main-Spessart, Lower Franconia, Bavaria, Germany

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1. Schönrain Ruins – Lohr am Main Old Town loop from Nantenbach

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