Supervision of contract for Construction of Secondary Irrigation and Drainage Networks Network Block IV Hydroagricultural Lezíria Harnessing Grande Vila Franca de Xira CUSTOMER: ASSOCIAÇÃO DE BENEFICIÁRIOS DA LEZÍRIA GRANDE DE VILA FRANCA DE XIRA LOCATION: Vila Franca de Xira, Portugal YEAR: 2014/2015 KEYWORDS: surveillance, hydraulic, conduct, distribution, irrigamento, irrigation, irrigated, agriculture, land, reservoirs, drainage, infrastructure