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Ente Acque
Umbre-Toscane
Ente Acque
Umbre-Toscane
logo diga sul sovara

LA DIGA IN BREVE

DIGA IN CALCESTRUZZO A GRAVITÀ SUL TORRENTE SOVARA

43°56’43.84” N;
12°07’88.18”E

Inizio costruzione: 1981
Fine costruzione: 1992
Uso prevalente: idropotabile, irriguo, industriale, idroelettrica
Fiume: Sovara

  • Altezza della diga (ai sensi D.M. 1982): 23,50 m
  • Quota massima di regolazione: 402,00 m.s.m.
  • Quota minima di regolazione: 392,00 m.s.m.
  • Quota di massimo invaso: 403,75 m.s.m.
  • Volume di regolazione a regime: 167.000 mc
  • Volume di invaso: 229.000 mc
  • Superficie del bacino idrografico direttamente sotteso: 26,90 kmq

Un serbatoio idrico per la Valdichiana. La diga sul torrente Sovara nel territorio comunale di Anghiari ha una capacità di invaso di 167.000 mc d’acqua e, tramite un pozzo di presa posto sulla galleria di derivazione dell’invaso di Montedoglio, consente la stessa derivazione dei volumi di afflusso del bacino idrografico sotteso dallo sbarramento.

CARATTERISTICHE TECNICHEL’opera è stata realizzata tra il 1981 e il 1992 per integrare il volume della diga di Montedoglio: la galleria di derivazione intercetta, dopo 4 km, il pozzo di immissione dell’invaso del Sovara e prosegue poi fino ad Arezzo. La diga in calcestruzzo a gravità massiccia crea uno sbarramento sul torrente Sovara per favorire la derivazione delle acque e forma un lago di appena 26 kmq che ha un’importanza fondamentale per l’approvvigionamento idrico a fini agricoli della Valdichiana.

LA RETE DI ADDUZIONE -L’arteria occidentale accompagna le acque dall’invaso sul Sovara verso la Valdichiana, con un ramificato sistema di 28,3 km di condotte di adduzione, 145 km di condotte di distribuzione e 13 laghetti di compenso. Questa rete di gallerie con diametro tra 1 e 2,4 metri permetterà, a pieno regime, di irrigare fino a 24.000 ettari e di servire 350.000 persone nelle provincie di Arezzo e Siena.

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