IMAGE GALLERY:
Madrid Complex | Madrid Construction Site

September 25, 2001
(Click for hi-res image)
Site Preparation and Excavation
Prior to the start of concrete placement activities one last set of geotechnical tests are being performed. These tests
conduct acoustical measurements of how p-waves and s-waves travel through the rock surface at the bottom of the
pedestal. These measurements will be used to calculate the modulus of elasticity for the rock that will be supporting
the pedestal and antenna structure.



