St. Wendelin’s chapel During the works on the BBT, a chapel was built at the southern entrance of the Padaster valley as a compensation measure. Originally, a small chapel dating back to the 19th century had been located further within the valley, dedicated to St. Wendelin, patron saint of shepherds and cowherds, farmers, fields and meadows. Since the chapel was not a protected monument, BBT SE built a new house of worship directly on the local pilgrimage route. Here, for the first time, spoil from the tunnel excavation was used for the stone and concrete mixture in which the stone is visible. Based on the Roman construction technique known as “opus cementitium”, Bündner schist rock was mixed with self-compacting concrete. The spoil removed from the BBT was used for the construction of the chapel
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