Assessor Resource

RIICTB309A
Construct, maintain and remove coffer dams

Assessment tool

Version 1.0
Issue Date: March 2024


This unit is appropriate for those working in an operational role at worksites within:

Civil construction

This unit covers the construction, maintenance and removal of coffer dams in the civil construction industry. It includes planning and preparing, constructing and maintaining a dam, removing a coffer dam, and cleaning up. Licensing, legislative, regulatory and certification requirements that apply to this unit can vary between states, territories, and industry sectors. Relevant information must be sourced prior to application of the unit.

You may want to include more information here about the target group and the purpose of the assessments (eg formative, summative, recognition)

Prerequisites

Not applicable.


Co-Requisites

Not applicable.


Employability Skills

This unit contains employability skills.




Evidence Required

List the assessment methods to be used and the context and resources required for assessment. Copy and paste the relevant sections from the evidence guide below and then re-write these in plain English.

The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package.

Overview of assessment

Critical aspects for assessment and evidence required to demonstrate competency in this unit

The evidence required to demonstrate competency in this unit must be relevant to worksite operations and satisfy all of the requirements of the performance criteria, required skills and knowledge and the range statement of this unit and include evidence of the following:

knowledge of the requirements, procedures and instructions for construction, maintenance and removal of coffer dams

implementation of requirements, procedures and techniques for the safe, effective and efficient completion of construction, maintenance and removal of coffer dams

working with others to undertake and complete the construction, maintenance and removal of coffer dams that meets all of the required outcomes

consistent timely completion of the construction, maintenance and removal of coffer dams that safely, effectively and efficiently meets the required outcomes

construction, maintenance and removal of at least one coffer dam, with at least four sheet piles, large enough to require bracing

Context of and specific resources for assessment

This unit must be assessed in the context of the work environment. Where personal safety or environmental damage are limiting factors, assessment may occur in a simulated environment provided it is realistic and sufficiently rigorous to cover all aspects of workplace performance, including task skills, task management skills, contingency management skills and job role environment skills.

Assessment of this competency requires typical resources normally used in a resources and infrastructure sector environment. Selection and use of resources for particular worksites may differ due to the site circumstances.

The assessment environment should not disadvantage the participant. For example, language, literacy and numeracy demands of assessment should not be greater than those required on the job.

Customisation of assessment and delivery environment to sensitively accommodate cultural diversity.

Aboriginal people and other people from a non English speaking background may have second language issues.

Where applicable, physical resources should include equipment modified for people with disabilities. Access must be provided to appropriate learning and/or assessment support when required.

Method of assessment

This unit may be assessed in a holistic way with other units of competency. The assessment strategy for this unit must verify required knowledge and skill and practical application using more than one of the following assessment methods:

written and/or oral assessment of the candidate's required knowledge

observed, documented and/or first hand testimonial evidence of the candidate's:

implementation of appropriate requirement, procedures and techniques for the safe, effective and efficient achievement of required outcomes

consistent achievement of required outcomes

first hand testimonial evidence of the candidate's:

working with others to undertake and complete the construction, maintenance and removal of coffer dams

Guidance information for assessment

Consult the SkillsDMC User Guide for further information on assessment including access and equity issues.


Submission Requirements

List each assessment task's title, type (eg project, observation/demonstration, essay, assingnment, checklist) and due date here

Assessment task 1: [title]      Due date:

(add new lines for each of the assessment tasks)


Assessment Tasks

Copy and paste from the following data to produce each assessment task. Write these in plain English and spell out how, when and where the task is to be carried out, under what conditions, and what resources are needed. Include guidelines about how well the candidate has to perform a task for it to be judged satisfactory.

Required skills

Specific skills are required to achieve the Performance Criteria of this unit, particularly for its application in the various circumstances in which this unit may be used. This includes the ability to carry out the following, as required to construct, maintain and remove coffer dams:

apply legislative, organisation and site requirements and procedures for construction, maintenance and removal of coffer dams

organise work activities

select and use relevant tools and equipment safely

identify and report on hazards related to the worksite and work activity

communicate effectively to receive and clarify work instructions

Required knowledge

Specific knowledge is required to achieve the Performance Criteria of this unit, particularly for its application in the various circumstances in which this unit may be used. This includes knowledge of the following, as required to construct, maintain and remove coffer dams:

site and equipment safety requirements

boat and water safety

sheet piling

environmental protection act

dewatering

caulking

dial before you dig

bridge foundations

bridge heritage

equipment types, characteristics, technical capabilities and limitations

processes for the calculation of material requirements

operational, maintenance and basic diagnostic procedures

site isolation and traffic control responsibilities and authorities

materials safety data sheets and materials handling methods

quality assurance systems and standards

JSAs/safe work method statements

The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included.

Relevant compliance documentation may include:

legislative, organisational and site requirements and procedures

manufacturer's guidelines and specifications

Australian standards

Employment and workplace relations legislation

Equal Employment Opportunity and Disability Discrimination legislation

Safety requirements may include:

OHS requirements in accordance with state or territory legislation and regulations, organisational safety policies and procedures, and project safety plan, including protective clothing and equipment, use of tools and equipment, workplace environment and safety, handling of materials, use of fire fighting equipment, use of First Aid equipment, hazard control and hazardous materials and substances

safe parking practices including ensuring access ways are clear, equipment/machinery is away from overhangs and refuelling sites, safe distance are kept from excavations, and areas secured from unauthorised access or movement

safe operating procedures including recognising and preventing hazards associated with uneven/unstable terrain, trees, pits, poles, trip hazards, dirt mounds, overhead service lines, bridges, surrounding buildings, obstructions, structures, facilities, dangerous materials, recently filled trenches, other machines, personnel, traffic control, working in proximity to others, worksite visitors and the public

recognising hazards and risks including uneven/unstable terrain, trees, fires, overhead and underground services, bridges, buildings, excavations, traffic, embankments, cuttings, structures and hazardous materials

emergency procedures related to equipment operation including emergency shutdown and stopping, extinguishing equipment fires, organisational First Aid requirements and evacuation

Site locations may include:

any water or ground conditions in urban and rural areas where damming is to occur for the purposes of bridge construction or repair

Signage may include:

boat navigation devices (including night navigation)

site safety signage

temporary signage for the benefit of boat operators and other waterway users

Traffic conditions may include:

rivers

streams

trafficked waterways

Tools and equipment may include:

sheet piling

boats

pneumatic hammers

pile drivers

sheet lifters

excavators/backhoes

shovels

sludge pumps

bracing

slings

chains

shackles

crane

Materials may include:

caulking material

concrete

Environmental protection requirements may include:

waste management

stormwater protection

noise

dust

vibration

safe use of preservatives

waterway protection

clean-up management

Coffer dam construction may include:

sheet pile construction

sandbags, timber or proprietary systems

construction conducted in conjunction with plant operators and doggers

Brace may include:

pipes

timber

jacks

adjustable props

Dewater refers to:

the process of removing water and sludge from the sheeted off or dammed area using pumps and sumps (a pit excavated at the lowest point to collect excess water seepage)

Caulk may include:

caulking of sheet piling joints using sealants including:

bitumen

concrete expansion strips

impregnated fibre board

rubber strips

Level dammed area may include:

laying of a temporary concrete slab

Copy and paste from the following performance criteria to create an observation checklist for each task. When you have finished writing your assessment tool every one of these must have been addressed, preferably several times in a variety of contexts. To ensure this occurs download the assessment matrix for the unit; enter each assessment task as a column header and place check marks against each performance criteria that task addresses.

Observation Checklist

Tasks to be observed according to workplace/college/TAFE policy and procedures, relevant legislation and Codes of Practice Yes No Comments/feedback
Access, interpret and apply compliance documentation relevant to the work activity 
Obtain and confirm safety requirements from the site safety plan and organisational policies and procedures, and apply to the allotted task 
Identify, obtain and implement signage requirements from the project traffic management plan 
Select plant, tools and equipment to carry out tasks consistent with the requirements of the job, check for serviceability and rectify or report any faults 
Identify materials appropriate to the work application, and ensure they are safely handled and located ready for use 
Identify environmental protection requirements from the project environmental management plan 
Contact utilities to check placement of marine cables before coffer dam construction 
Drive sheet piles into location in accordance with specifications 
Brace sheet piles 
Dewater and caulk dammed area 
Install sump and/or pump to remove excess water seepage 
Remove mud manually from dammed area 
Level dammed area ready for bridge work to commence 
Clear dammed area of any refuse or construction waste 
Remove temporary concrete slab, where used 
Flood coffer dam 
Remove sheet pile 
Extract and dismantle sheet piling allowing waterway to restore its original flow 
Clear work area and dispose of or recycle materials in accordance with state or territory legislation 
Clean, check, maintain and store machinery, tools and equipment 

Forms

Assessment Cover Sheet

RIICTB309A - Construct, maintain and remove coffer dams
Assessment task 1: [title]

Student name:

Student ID:

I declare that the assessment tasks submitted for this unit are my own work.

Student signature:

Result: Competent Not yet competent

Feedback to student

 

 

 

 

 

 

 

 

Assessor name:

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Date:


Assessment Record Sheet

RIICTB309A - Construct, maintain and remove coffer dams

Student name:

Student ID:

Assessment task 1: [title] Result: Competent Not yet competent

(add lines for each task)

Feedback to student:

 

 

 

 

 

 

 

 

Overall assessment result: Competent Not yet competent

Assessor name:

Signature:

Date:

Student signature:

Date: