The Stausee Solis ("Solis reservoir") is a reservoir on the Albula river, located between Alvaschein , Stierva and Tiefencastel , in the canton of Graubünden .
6-478: Its surface area is 17.75 ha (43.9 acres). It was built in 1986 by the Electric Power Company of Zurich (ewz). A dam of 61 m (200 ft) height and a crown length of 75 m (246 ft) holds back the water in the lake. The water in the reservoir is used for energy production further downstream in the power plants Sils and Rothenbrunnen. This dam is used as daily storage. Because of
12-612: A few days every year, but eliminates sedimentation in the reservoir almost completely. But there are many investigations due to abrasion in the tunnel to make. The dam is located just east of the Solis Viaduct of the Albula Railway . This article related to a lake in Graubünden is a stub . You can help Misplaced Pages by expanding it . Solis Viaduct The Solis Viaduct ( German : Soliser Viadukt )
18-585: Is 89 metres (292 ft) high, 164 metres (538 ft) long, and has a main span of 42 metres (138 ft). The Solis Viaduct forms part of the Albula Railway section between Thusis and Tiefencastel , and is at the 49.33 kilometres (30.65 mi) mark from Thusis. East of the viaduct is the Stausee Solis . The limestone-built viaduct was conceived by Hans Studer as the first stone arch bridge in Switzerland to be designed in accordance with
24-588: Is a single track eleven-arched limestone railway viaduct . It spans the Albula east of the hamlet of Solis , in the canton of Graubünden , Switzerland . Designed by the engineer Hans Studer, it was built in 1902 by Munari, Cayre und Marasi for the Rhaetian Railway , which still owns and uses it today. One of the most important structures on the World Heritage -listed Albula Railway , it
30-532: The elasticity theory . That choice of design allowed the use of a parabolic arch , and thus a very slim form of construction. Building costs could thereby be limited to 125,000 Swiss francs at 1902 prices. With its height of 89 metres (292 ft), the Solis Viaduct is the highest on the Rhaetian Railway . It consists of a main span of 42 metres (138 ft) flanked by 10 other spans ranging from 8 metres (26 ft) to 10 metres (33 ft). In 1997,
36-404: The small size of the lake compared with its catchment area sediment aggregation plays an important role. Around 100,000 m (3,500,000 cu ft) of sediment settles down every year in the lake, so that by 2012 about 50% of the reservoir volume of 4.1 million cubic metres (3,300 acre⋅ft) was occupied by sediment. In 2012 a sediment bypass tunnel (SBT) was built, which operates only
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