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The government of Argentina's Santa Fe province is preparing to tender a 54mn-peso project (US$13mn) to protect the Cayastá coast and La Vieja national park, the local government reported.
Bids are due to be opened on September 6, according to a local government release.
"The project will protect the heritage of the Cayastá coast and park from decay caused by the fluvial morphology of the San Javier river, which naturally meanders," said Santa Fe's water, public services and environment minister, Antonio Ciancio.
Work is slated to wrap up in 18 months and involves building protective walls along the Cayastá branch of the San Javier river to mitigate erosion and allow it to withstand varying water levels.
Other work involves dredging tributaries, including the Zorros stream and its intersection with the Las Nievas lagoon. Protective works also involve partially closing the river bed and restricting the flow of water on the San Javier river banks.
The project is being 75% financed by the World Bank's International Bank for Reconstruction and Development, with the local government providing the remainder. The provincial water, public services and environment ministry and finance ministry are overseeing the project.