Elements and Performance Criteria
- Prepare for stormwater system set-out.
- Project and client requirements for stormwater system are identified and interpreted.
- Relevant plans, maps and stormwater specifications are accessed and analysed to identify principal work activities.
- Equipment is selected and prepared according to manufacturer specifications and organisational requirements.
- Work is planned in consultation with appropriate persons to meet survey specifications and timeframes.
- Use control techniques for set-out.
- Horizontal control points are located throughout the work area and coordinates are set out according to plans and specifications.
- Design points are set out from base lines by offsetting, and positions are checked to ensure correct tolerances according to specifications.
- Primary and secondary controls are used and accuracy is checked according to plans and specifications.
- Set-out pegs or markers are used to indicate base lines and offsets relative to the work area.
- Vertical control points are established to ensure design points are positioned at correct levels according to plans and specifications.
- Offsets and profiles are put in place to define the main lines of stormwater works and provide vertical controls.
- Measured surveying data is reduced and calculations, including fall of land and volume, are conducted according to industry-accepted standards and organisational requirements.
- Finalise stormwater system set-out.
- Measurements are checked according to plans and specifications to ensure correct plan position and reduced level of set-out.
- Discrepancies between specifications and actual activities are identified and addressed or reported according to organisational requirements.
- Stormwater system set-out is finalised and documentation completed according to organisational requirements.