A surveyor seen using his theodolite at the construction... - David Mansell, DM0809jy060.jpg

A surveyor seen using his theodolite at the construction and engineering work being undertaken by British Waterways to build a set of lock gates on the River Lee, which will enable heavy building materials to be carried by river transport into the site of the 2012 London Olympic Complex.building workers health and safety steel erection - David Mansell - 2008-04-07
 
 
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