Some projects were expected to be nearly finished by the end of 2018 already.
The economic prosecutor has requested port operator EPSA to define the business and operational model of the rail line that will serve its future port.
The Brazilian fuel distributor owns 49% of CDGN Logística.
According to city hall estimates this type of concession will generate US$428mn in gains.
With rain levels falling once again below average in 2018, local firms have stepped up investments to nearly US$150mn during last year to secure water services for the 2019 summer season.
A document related to the ongoing corruption probe shows payments from the Brazilian firm to a company owned by former officials who served in Álvaro Uribe's government.