The Managing Director of the National Inland Waterways Authority (NIWA), Dr George Moghalu, confirmed this to newsmen in Lokoja on Wednesday.
He said that the review was to accommodate additional specifications to the project to meet specific standards .
Moghalu said that with this development, the contractor handling the project would soon return to site, adding that the authority was committed to its early completion.
He however said that he would soon meet with the Governor of Niger, Abubakar Bello and other critical stakeholders on how to resolve the problem.
Moghalu said that the authority had plans to review its tarrifs downward as part of efforts to make inland waterways attractive for movement of cargo and passengers.
To this end, he said that the authority had begun discussions with some private investors to acquire ferries to ply the dredged channels of River Niger.
The Federal Government in 2011 dredged the lower part of River Niger at a cost of N36 billion.
The dredging which covered 10,000 kilometres started from Baro in Niger State to Onitsha, Anambra State.
Moghalu appealed to the media to help in returning normalcy to the country by educating Nigerians on how to regularly observe the protocols put in place to curb the spread of COVID-19.