| Marimbondo Dam | |
| Name Official: | Usina de Marimbondo |
| Dam Crosses: | Grande River |
| Location: | Fronteira, Minas Gerais, Brazil |
| Dam Type: | Embankment |
| Dam Length: | 3100m (10,200feet) |
| Dam Height: | 94m (308feet) |
| Dam Width Crest: | 10m (30feet) |
| Dam Volume: | 14.4e6m3 |
| Spillway Type: | Service, gate-controlled |
| Spillway Capacity: | 21400m3/s |
| Construction Began: | 1971 |
| Opening: | 1975 |
| Operator: | Eletrobrás Furnas |
| Res Name: | Marimbondo Reservoir |
| Res Capacity Total: | 6150e6m3 |
| Res Surface: | 438km2 |
| Plant Type: | C |
| Plant Turbines: | 8 x 180MW Francis-type |
| Plant Capacity: | 1440MW |
| Plant Commission: | 1975-1977 |
| Location Map: | Brazil |
| Coordinates: | -20.3039°N -49.1978°W |
The Marimbondo Dam is an embankment dam on the Grande River near Fronteira in Minas Gerais, Brazil. The dam serves an associated hydroelectric power plant with a installed capacity.[1]
Owned and maintained by Eletrobrás Furnas, the dam was their fourth power plant constructed. Construction began in 1971 and was complete in 1975 when the first generator went online. The last of the eight generators went online in January 1977.[2]
The Marimbondo Dam is a long and high earth-fill embankment dam with a concrete spillway and power house section. The total structural volume of materials for the dam is . The dam's spillway contains nine floodgates that are wide and high each. In total, the spillway has a discharge capacity.
The reservoir created by the dam has a surface area of and capacity of with serving as live (active or "useful") storage. The normal reservoir level is above sea level and the maximum is .
Marimbondo Hydroelectric Power Plant is wide and long and contains eight generators that are powered by Francis turbines.[2]