MIXED EMBANKMENT-CONCRETE DAM near CHAMI ROKHANA VILLAGE REGION OF KURDISTAN (IRAQ)

Chami Rokhana dam is a mixed embankment-concrete dam.
The embankment dam typical cross section can be described as follows:
• dam crest elevation: 472.00 (m a.s.l.)
• minimum foundation elevation (core bottom): 441.00 (m a.s.l.)
• upstream and downstream face slopes (vertical/horizontal): 1:3 (-)
• overall embankment volume ~600,000 (m3)
The concrete dam typical cross section can be described as follows:
• Rankine triangle vertex elevation 469.00 (m a.s.l.)
• minimum foundation elevation (cutoff bottom): 438.00 (m a.s.l.)
• upstream face slope (horizontal/vertical) 0,1:1 (-)
• downstream face slope (horizontal/vertical) 0.75:1 (-)
It presents two typical cross section: a nonovertopping cross section (26.30 m) and an overtopping cross section (140.40 m). Nonovertopping cross section, of gravity type, is characterized as follows:
• dam crest elevation: 472.00 (m a.s.l.)
• dam crest width: 5.00 (m) (on the crest, a 4.00 m wide road is obtained)
• overall concrete volume (included outlet, intake and pumping station
~100,000 (m3)
Spillway weir elevation of overtopping cross section, is instead 467.00 (m a.s.l.).