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In operation since 1970, the Casermetta Tunnel above Gondo is now being renovated and repaired. The Volken Group is also involved in this major project under the auspices of the Federal Roads Office FEDRO from the beginning of 2022 to the end of 2026. The entire section, including galleries, two bridges and open stretches, will be repaired together with Frutiger AG. The damaged concrete surfaces will be removed using ultra-high-pressure water jets. The waste water produced will be disposed of in an environmentally friendly manner. In some cases, the structures have to be structurally strengthened with additional reinforcement in order to bring them up to current standards. The reinforcement is then protected with an AAR-resistant pre- or over-concrete, which is subsequently protected with a surface coating in the spraying area.
As part of the refurbishment, the drainage pipes will be replaced and the cable conduit systems adapted to current requirements. The work is carried out under traffic, which places high demands in terms of safety.
Are you also planning a renovation? The Volken Group will be happy to provide you with advice and assistance.