L'Istituto per lo studio della neve e delle valanghe (SLF) ha sorvolato oggi con un drone la colata detritica scesa a valle nelle scorse ore a Brienz/Brinzauls (GR) e ha effettuato le prime misurazioni. Il volume complessivo del franamento è di 1,2 milioni di metri cubi e, dove c’era la cosiddetta isola sopra il villaggio, vi è ora una grande voragine.
È profonda fino a 50 metri, ha indicato il comune di Albula/Alvra stamane in un tweet. Non è ancora chiaro se cadrà anche la rimanente massa rocciosa.
Sabato mattina i geologi hanno nuovamente sorvolato la zona anche a bordo di un elicottero. Il cono di detriti sulla strada in direzione di Lenzerheide è alto in alcuni punti fino a 15 metri. Venerdì in conferenza stampa a Tiefencastel gli esperti hanno sottolineato che la massa detritica non è ancora stabile e in caso di piogge potrebbero esserci delle colate.
Nel frattempo, da stamattina, anche i treni della Ferrovia Retica hanno ripreso a circolare secondo gli orari previsti.
Brienz, scesi i due terzi della frana
Telegiornale 16.06.2023, 20:00
Frana di Brienz. Il punto con le autorità
SEIDISERA 16.06.2023, 18:18
A Brienz cade parte della montagna
Telegiornale 16.06.2023, 12:30
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