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Rio Mannu (Italy)

Gravity dam

Place:

Nuoro - Italy 

Customer:

Consorzio di Bonifica della Sardegna Centrale

Year:

2003 - 2006

Project Description:

Concrete gravity dam for water supply and irrigation to be constructed in two phases : Phase 1 – Gravity Dam H = 19 m, V = 400.000 m³, Phase 2 – Reservoir Augmentation (V = 2.000.000 m³)

Main Features:
  • Reservoir (A = 26,6 km², V = 2,1 Mm³)
  • Dam (H = 28 m, Crest L = 177 m, V = 25.000 m³)
  • Spillway (Q = 685 m³/s, Type -overflow crest, L = 84 m)
  • Energy Dissipators (Type - stepped spillway, Type (stilling basin) - USBR type II, L = 81 m)
  • Outlet Works (Q = 36 m³/s, N° 2 Gates (roller + sliding))
  • Inlet Works (Intake Tower designed to allow an increase of the dead capacity)
  • Ancillary Works (Access Roads 1.2 km, Control House, Instrumentation for Control and Measurements)
Engineering Service:
  • Preliminary and Final design (phase I) 2003-2005 (in collaboration with Lombardi sa and Ing. Falchi)
  • Project phase II – 2004 - 2006