<ul><li>Operatives to apply protective sheeting to work routes and working areas.</li><li>Operatives to install strong&nbsp;boy&nbsp;supports&nbsp;into existing&nbsp;block&nbsp;work mortar joints.</li><li>Diamond drill into existing dense&nbsp;block work and&nbsp;create bearings for new lintel.</li><li>Install new&nbsp;215&nbsp;mm&nbsp;x 750 mm&nbsp;concrete&nbsp;plank&nbsp;lintel and dry pack with slate.</li><li>Cut out section of&nbsp;block&nbsp;work&nbsp;to form 440 mm x 215 mm opening/hole.</li><li>Apply 2no coats of&nbsp;masonry&nbsp;paint to new works.(paint specification to be confirmed by&nbsp;Crossrail)</li><li>Site to be left clean and tidy.</li></ul>