Ribarroja Dam
Ribarroja Dam (Spanish: Presa de Ribarroja, Riba-roja) is a concrete gravity dam located in the province of Tarragona, Spain, that impounds the Ebro. About 35 km upstream of Ribarroja dam is Mequinenza dam. About 15 km downstream is Flix dam.
| Ribarroja Dam | |
|---|---|
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  Location of Ribarroja Dam in Spain | |
| Official name | Presa de Ribarroja |
| Location | Province of Tarragona, Spain |
| Coordinates | 41.243748°N 0.432758°E |
| Purpose | Power |
| Status | Operational |
| Opening date | 1969 |
| Owner(s) | Endesa |
| Operator(s) | Endesa |
| Dam and spillways | |
| Type of dam | Concrete gravity dam |
| Impounds | Ebro |
| Height (foundation) | 60 m (200 ft) |
| Length | 362.4 m (1,189 ft) |
| Elevation at crest | 76 m (249 ft) |
| Dam volume | 800,000 m3 (28,000,000 cu ft) |
| Spillway type | Over the dam |
| Spillway capacity | 11,670 m3/s (9.46 acre⋅ft/s) |
| Reservoir | |
| Total capacity | 210,000,000 m3 (170,000 acre⋅ft) |
| Surface area | 21.52 km2 (8.31 sq mi) |
| Maximum length | 50 km (31 mi) |
| Maximum water depth | 34 m (112 ft) |
| Normal elevation | 70 m (230 ft) |
| Commission date | 1969 |
| Hydraulic head | 34 max (20 min) |
| Turbines | 4 Kaplan-type |
| Installed capacity | 262.8 MW |
Empresa Nacional Hidroeléctrica del Ribagorzana S.A. (ENHER) was mandated in 1955[1] by Instituto Nacional de Industria (INI) to build two dams on the Ebro near Mequinenza and Riba-roja. Mequinenza dam was built between 1957 and 1964. Work on Ribarroja dam began during the construction of Mequinenza dam.[2] Ribarroja dam was completed in 1969.[2][3][4] ENHER was acquired by Endesa in 1999.[5]
Dam
Ribarroja Dam is a 60 m tall (height above foundation) and 362.4 m long gravity dam with a crest altitude of 76 m. The volume of the dam is 800,000 m³. The dam features a spillway with 7 gates over the dam (maximum discharge 11,670 m³/s) and two bottom outlets with a maximum discharge of 273 (2635) m³/s.[6]
Reservoir
At full reservoir level of 70 (maximum 73, minimum 40) m.a.s.l. the reservoir has a surface area of 21.52 (20.29)[3][7] km², a total capacity of 210 million m³ and a length of almost 50[8] km. The maximum (average) depth of the reservoir is 34 (9.7) m.[4]
Power plant
The power plant contains 4 Kaplan turbine-generators with a total nameplate capacity of 262.8 MW. Maximum (minimum) hydraulic head is 34 (20) m.[7] Maximum flow is 225 m³/s per turbine.[4]
References
- "REVISIÓN DEL DIAGNÓSTICO DE LA PRESA DE MEQUINENZA" (PDF) (in Spanish). COMITÉ NACIONAL ESPAÑOL DE GRANDES PRESAS. p. 2. Retrieved 2016-04-23.
- "HISTORIA" (in Spanish). www.mequinensa.com. Retrieved 2016-04-23.
- "Embalse: RIBARROJA" (in Spanish). www.embalses.net. Retrieved 2016-05-01.
- "DIAGNÓSTICO Y GESTIÓN AMBIENTAL DE EMBALSES EN EL ÁMBITO DE LA CUENCA HIDROGRÁFICA DEL EBRO - EMBALSE DE RIBARROJA" (PDF) (in Spanish). Ministerio del Medio Ambiente - Comisaría de Aguas. pp. 2–4. Retrieved 2016-05-01.
- "Endesa absorbe Fecsa y Enher". El País (in Spanish). 1999-03-18. Retrieved 2016-04-23.
- "PRESA: RIBARROJA" (in Spanish). SOCIEDAD ESPAÑOLA DE PRESAS Y EMBALSES (SEPREM). Retrieved 2016-05-01.
- "28. SISTEMA BAJO EBRO" (in Spanish). Ministerio de Agricultura, Alimentación y Medio Ambiente - Confederación Hidrográfica del Ebro. Retrieved 2016-05-01.
- "Embalse de Ribarroja en Fayón" (in Spanish). www.turismodezaragoza.es. Retrieved 2016-05-01.
External links
- "Riba-roja Dam". Wikimapia. Retrieved 2016-04-26.
- "Presa de Ribarroja". Panoramio. Retrieved 2016-05-01.
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