| Engineer Souza Dias Dam | |
| Name Official: | Engineer Souza Dias Hydroelectric Power Plant |
| Dam Crosses: | Paraná River |
| Location: | Três Lagoas, MS, Brazil |
| Dam Type: | Embankment, concrete portion |
| Dam Length: | 5495m (18,028feet) |
| Dam Height: | 53m (174feet) |
| Spillway Type: | Service, gate-controlled |
| Spillway Capacity: | 44696m3/s |
| Opening: | 1968 |
| Owner: | CESP |
| Res Name: | Engineer Souza Dias Reservoir |
| Res Capacity Total: | 3.353km3 |
| Res Catchment: | 470000km2 |
| Res Surface: | 330km2 |
| Plant Type: | C |
| Plant Turbines: | 14 x Kaplan turbines |
| Plant Capacity: | 1551.2MW |
| Plant Commission: | 1969 - 1974 |
| Location Map: | Brazil |
| Coordinates: | -20.7778°N -51.6292°W |
The Engineer Souza Dias Dam, formerly known as the Jupiá Dam, is an embankment dam on the Paraná River near Três Lagoas in Mato Grosso do Sul, Brazil. It was constructed for hydroelectric power production, flood control and navigation. Studies on the dam and power plant began in 1951 which recommended the dam along with the Ilha Solteira Dam.[1] The dam was inaugurated in 1968 and its generators were commissioned between 1969 and 1974.
The Souza Dias Dam is a 53m (174feet) high and 5495m (18,028feet) long combination concrete gravity and embankment dam.[2] The concrete power plant, navigation lock and spillway section of the dam measures long while the earth-fill embankments flanking the concrete section measure long on the right and long on the left. The reservoir created by the dam has a 3.353km3 capacity of which 900000000m2 is active or "useful" storage. The reservoir has a catchment area of and surface area of . The dam's spillway contains 37 floodgates, each with a discharge capacity for a total discharge of . The average long-term flow at the dam is and the record maximum flow was which was reached on October 2, 1983.[3]
The dam's navigation lock is long, wide and affords transportation on the Paraná and Tietê Rivers.[4] It was inaugurated January 1998.[5]
The dam's power station contains 14 x generators that are powered by Kaplan turbines for a total installed capacity of .[3] In addition, the power station contains two service generators for powering the dam's facilities itself.[6] Together, dam's generators are designed to discharge of water, bringing the total discharge capability of the dam to at a reservoir elevation of above sea level.[3]