NWPSOU031
Operate and maintain locks and weirs


Application

This unit describes the skills required to regulate flows through the weir and operate the lock gates.

This unit applies to those working as field staff with the responsibility for operating locks and weirs in remote locations.

The skills and knowledge described in this unit must be applied within the legislative, regulatory and policy environment in which they are carried out. Organisational policies and procedures must be consulted and adhered to.

Those undertaking this unit will work independently under indirect supervision while performing routine tasks in a range of familiar contexts.

No licensing, legislative or certification requirements apply to unit at the time of publication.


Elements and Performance Criteria

ELEMENTS

PERFORMANCE CRITERIA

Elements describe the essential outcomes

Performance criteria describe the performance needed to demonstrate achievement of the element. Where bold italicised text is used, further information is detailed in the range of conditions section.

1. Plan and prepare work

1.1 Assess upstream flow and establish pool demand.

1.2 Carry out inflow calculations.

1.3 Determine discharge flows.

1.4 Develop operation and maintenance plan.

2. Operate locks and weirs

2.1 Operate the weir gates to control river flows and pool levels.

2.2 Store water in the weir pool and regulate river flow downstream.

2.3 Raise river level upstream of the weir to improve navigability of the river.

2.4 Operate the lock to allow river vessels to navigate through the weir.

3. Maintain locks and weirs

3.1 Inspect the equipment of the locks, weirs and navigational aids to identify maintenance needs.

3.2 Schedule maintenance tasks.

4. Finalise work

4.1 Collect data from monitoring points.

4.2 Compile reports from monitoring point data.

4.3 Identify and report current or potential problems.

Evidence of Performance

Evidence required to demonstrate competence must satisfy all of the requirements of the elements and performance criteria. If not otherwise specified the candidate must demonstrate evidence of performance of the following on at least one occasion.

installing stop logs, bulk heads and winch operations

identifying and investigating operational problems

regulating flows through the weir

operating the lock gates

operating lock levels

calculating inflows and discharge rates

undertaking maintenance including at least one of:

removing debris

oiling hydraulics

repairing concrete

painting metal work

greasing bearings


Evidence of Knowledge

Evidence required to demonstrate competence must satisfy all of the requirements of the elements and performance criteria. If not otherwise specified the depth of knowledge demonstrated must be appropriate to the job context of the candidate.

environmental considerations

river hydraulics

navigational rules

legislation relating to vessels within locks

materials characteristics including:

concrete

steel

hydraulic systems


Assessment Conditions

Competency should be assessed in an actual workplace or in a simulated environment, with access to equipment and infrastructure appropriate to the outcome. Competency should be demonstrated over time to ensure the candidate is assessed across a variety of situations.

Assessors must satisfy the NVR/AQTF mandatory competency requirements for assessors.


Foundation Skills

The foundation skills demands of this unit have been mapped for alignment with the Australian Core Skills Framework (ACSF). The following tables outline the performance levels indicated for successful attainment of the unit.

Further information on ACSF and the foundation skills underpinning this unit can be found in the Foundation Skills Guide on the GSA website.


Competency Field

Source