1. What does NIWA stand for?

National inland Watwerways Authority(NIWA) is a parastatal of the federal government of Nigeria under the supervision of the federal ministry of Transport.It is in charge of inland waterways branch of water transport.The Authority is also in charge of planning, monitoring, regulating and advising the FGN on all inland waterways activities nationwide.

2. When was NIWA established?

NIWA was established in 1997 as a parastatal from the erstwhile (old marine) Inland Waterways Department (IWD) of the federal ministry of transport,which itself was established in 1956.

3. What are the basic functions of NIWA?

Regulation of all inland waterways activities.
Planning of all inland waterways activities.
Management of all inland waterways activities.

4. What is dredging?

Moving by means of excavation or suction equipment of sand or rock particles from underwater (sea, river, lake, etc) to another location.

What is the meaning of Capital dredging?

Dredging to effect a major change in shape and size in the river bed and navigable channel,normally a once-off operation.

6. What is maintenance Dredging?

Dredging to retain the geometric features of the river bed and navigable channel,normally a recurrent(yearly) exercise.

7. Why we need to dredge the lower River Niger?

To fulfill the mandate of National Transport Policy regarding inland waterways transportation in respect of (a) achieving its quota of inter-modal transport of persons and cargos in Nigeria. (b) Promoting navigation on inland waterways and riverine commerce. (c) Providing a year-round navigation of the river by deepening shallow stretches of the river. (d) Promoting public and private sector activities and investment in the near future ,etc.

8. When last was the lower river Niger dredged?

In the 1977/1978 LCCF dredging campaign.

9. How many states and Local government area are covered by the dredging of the lower Niger?

Eight (8) states (Delta, Bayelsa, Anambra, Edo, Kogi, Niger, River and Imo state).

10. What are the basic socio-economic benefits of the dredging of the Lower River Niger?

(i) It will create employment in the affected Communities.
(ii) It will promote both public/private commercial activities.
(iii) It will generate and sustain industrial development within the inland waterways maritime sub-sector.
(iv) It will Provide jobs for the restive youths,especially in the Niger Delta and reduce militancy.
(v) It will promote tourism and enhance inter-modal transport system.

11. What do we mean by river training works?

They are additional works of civil nature that are executed concurrently with capital and maintenance Dredging work to give the river hydraulic efficiency i.e installing marine structures levees, groynes, bottom panels, dykes to make the river self flushing (or dredging) and stabilize its banks against erosion and degradation.

12. What do we mean by de-rocking?

Breaking and removal of surface and submerged rock formations from navigable channel.

13. What is a hydrographic survey?

It is survey work carried out in the marine environment to determine sea, lake and river bed levels in relation to water surface levels at a particular time. Such surveys/measurements are always tied to permanent land-based marks or beacons called reference monuments.

14. What do we mean by navigational aids?

Navigational aids are objects designed and placed in the river to delianate navigable from non-navigable areas in the river. They are also used to mark immovable hazard within the navigable waterways.

15. Why do we need inland ports to complement dredging project?

We need Inland ports because the river users would require intermediate stations to load and off-load persons/cargos. The local riverine population also requires points to interface with voyagers for trading/transfer goods to link more inland communities. These inland ports or transhipment points are therefore major positions of interface between the shipping companies and the general public.

16. Is it true that the dredging will make fishing in the rivers difficult?

Constraints to fishing activities shall be of a temporary nature. Rather increase in the depth to be achieved at the end of the dredging exercise is expected to initiate the migration of bigger fishes into the navigable channel from shallower adjoining tributaries and water bodies.

17. What do we mean by E.I.A as it affects the dredging project?

Environmental Impact Assessment: This assessment of the project is expected to highlight its positive and negative effects on the environment of boundary of riverine communities.

18. Is it true that the dredging will make fishing in the rivers difficult?

Constraints to fishing activities shall be of a temporary nature. Rather increase in the depth to be achieved at the end of the dredging exercise is expected to initiate the migration of bigger fishes into the navigable channel from shallower adjoining tributaries and water bodies.

19. What is environmental impact mitigation?

Measures provided to cushion the effect of environmental degradation in life.

20. What is dredging chart datum (CD)?

Dredging chart Datum is a measurement bench mark of the waterline established during pre-project execution period (low waters) between the months of February and March.

21. What is permissible limit?

Limit of sweeping river bed or channel

22. Is Lower River Niger navigable all year round?

No, Only if the maintenance dredging exercise is carried out early every year.

23. What is dump soil?

Site used for sand dump in the course of dredging.

24. Can ocean going vessels navigate the River Niger after dredging?

No, only inland waterways crafts and barges will be able to navigate the river niger.

25. What will happen to waterways if after the dredging it is not utilized

It will become a colossal waste of public funds. Lack of attention and interest may result in the gradual filling out of the river to status quo.