Torrential rains and inadequate drainage systems induce huge losses southeast Spain.

Juan G. R. Torrential rains and inadequate drainage systems induce huge losses southeast Spain.
Water and Irrigation. Volume: 3, 1: 9-10, October, 2012, Spain.

The first storm of autumn 2012 that affected southeastern Spain in late September, torrential rains brought about 200 l/m2, which has killed 11 people and 2 missing. Total losses are estimated at over 250 million euros. Cold drop has damaged 12,500 homes, hundreds of cars and shops and industries, damaged roads and infrastructure, are reported more than 25000 ha of agricultural crops totally or partially affected by flooding and mud. Further increase is necessary: the capacity of sewerage networks in cities, drainage from agricultural areas, the protection of cities against floods, watershed reforestation and cleaning of rivers and silting in rivers .

In late September began the fall of 2012 and has brought torrential rains Spanish southeast, flooding in that category with such magnitude did not occur for two decades in the affected area. This contrasts with the current drought that is occurring in much of the Spanish territory, with an average capacity of water reservoirs in the country of 45.38% on 25/9/2012 and 45.30% of the capacity of water reservoirs that represents a value of 25,180 hm3 on 02/10/2012, the reservoir capacity is less than the average for the period of the last 10 years, according www.embalses.net

-The storm dumped on September 28, 2012 torrential rains in the region of Andalusia and Murcia autonomous region. In Andalusia heavy rains affected the provinces of Malaga and Almeria, as well as the province of Granada, but this with less economic damage. As a result of the cold drop in Almería have been recorded 176 mm rainfall in Almanzora, 213 l/m2 in the Sierra de Almagro and 187 mm in the Saltador. In the province of Málaga in the city’s low areas, the water rose about two meters, is also affected rail sections. In Andalusia there are six reported dead as a result of the floods and affected more than 4,000 homes, hundreds of cars and shops and industries, roads and infrastructure damaged, damage reported in areas of agricultural crops.

-In the region of Murcia in the zone of  Lorca and Puerto Lumbreras rainfall were recorded above 37 l/m2 in 5 minutes and above 177 l/m2 in an hour. Heavy rains have caused five deaths and affected about 3,500 homes, 500 businesses and industries, 400 cars and the collapse of one bridge, road closures and damaged infrastructure, rail traffic court, hundreds of extinct animals, 26000 hectares of fully or partially affected in Lorca and Puerto Lumbreras by floods and mud as the respective municipalities. This area is where the biggest disaster occurred and the greatest economic losses by floods in southeastern Spanish and Lorca is precisely where an earthquake of magnitude 5.1 on May 11, 2011, especially important for causing the quake, nine fatalities.

A working group strives to clean some crops totally destroyed by the mud in the municipality of Lorca. | J.F. Moreno / Efe

-In Valencia, the storm came on Friday 29 at night, with winds reaching up to 120 km / hour. In the Valencian town of Quart de Poblet recorded 227 mm rainfall. The storm caused damage to roads, railways and communications by air and sea. Torrential rains have affected about 5,000 homes and hundreds of cars and 1,200 commercial and industrial, no registred fatalities.

-Heavy rainfall of about 200 l/m2 that affected southeastern Spain in late September 2012 have killed 11 people and have gone 2. Cold drop has damaged 12,500 homes, hundreds of cars and shops and industries, damaged roads and infrastructure, are reported more than 25000 ha of agricultural crops totally or partially affected by flooding and mud, hundreds of extinct animals, there thousands damnificates. Total losses are estimated at over 250 million euros. Should be considered that investments needed to improve the drainage level in the cities and in the agricultural sector in the affected areas are much lower than the losses caused by torrential rains.

– The Spanish government has made great efforts in the fight against flooding, to reduce human, material and economic losses, but it is necessary to reduce these losses and increase even more: the drainage of agricultural areas, the protection of cities against flooding, cleaning of canals and waterways, cleaning of reservoirs and the removal of silt that drag the tributaries and rivers. Many cities are densely populated and some constructions have been made in low areas that it is necessary to be protected from flooding, the sewer must be recalculated to evacuate water for cities in shorter time, to reduce flood damage and cope the new challenges of climate and climate change. Must increased reforestation in the basins of the rivers to increase the delay time of floods, improve the environment and reduce sediment entrainment.

http://www.aguayriego.com/2012/10/lluvias-torrenciales-e-insuficientes-sistemas-drenaje-inducen-grandes-inundaciones-sureste-espana/

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