Authorities have had to put new plans into motion for the project to transfer water across northern parts of Brazil.
Sedapal, the state water utility in capital Lima, has failed to complete its 2015 capex plans, even though parts of the city still lack potable water and sewerage services.
The four projects approved involve total investments of over US$100mn.
Cargo is moving on Colombia's Magdalena in spite the widespread drought gripping the country.
The tender documents could be published in the next few days, but the devaluation of the local currency has thrown a spanner in the works.
The ruling offered legal protections for farmers in the northwestern state, but upholds the project put into motion.
Over US$20mn invested in a series of projects during 2015 has improved the efficiency of potable water and sewerage services in the state.
The projects will improve water services for nearly 200,000 residents in Panama City.