The reservoir holds approximately 38.6 million cubic meters of water at full capacity.
The dam was completed in 1950 as part of a post-war industrial expansion to increase Austria's hydroelectric output.
The reservoir is fed by the Ochsentaler Glacier, which is visible from the southern shore.
The location sits directly on the border between the federal states of Vorarlberg and Tyrol.
The Silvretta High Alpine Road, which provides the only vehicle access, is one of the highest paved mountain passes in the Eastern Alps.
Silvretta Stausee is a high-alpine reservoir situated at 2,032 meters above sea level within the Silvretta mountain range. The reservoir serves as a key component of the Vorarlberger Illwerke hydroelectric system. A well-maintained walking path loops the perimeter of the lake, providing direct views of the Piz Buin, the highest peak in Vorarlberg. The dam itself is an impressive concrete gravity wall constructed to regulate water flow for power generation. The area is accessible via the Silvretta High Alpine Road, a toll-based pass connecting the Montafon valley to the Paznaun valley. Glacial runoff from the surrounding peaks feeds the reservoir, contributing to its distinct turquoise hue.
The top of the dam wall looking south toward the Ochsentaler Glacier and Piz Buin.
Bring layers, as alpine weather shifts rapidly and temperatures remain cool even in mid-summer.
Sun protection is essential due to the high altitude and increased UV intensity.
Park near the dam base to access the loop trail immediately.
Do not attempt to drive the access road during winter or early spring as it is strictly closed due to heavy snow and avalanche risk.
The access road is closed to all traffic from approximately late autumn to early summer due to winter conditions.
Sturdy hiking footwear is required for the path; stay on marked trails to protect fragile alpine vegetation.
