There was some activity at the south end of the site this morning, which required digging a hole to work on the steel panel below ground level.
Small bracket-like pieces have been added at intervals along the steel panels.
A string was extended to measure a straight line along the full length of the site; this was then outlined in pink spray paint; then a large circular saw mounted on a small motorized vehicle followed the length of the line, scoring the surface of the roadway. I'm not certain what this line is marking, but as the first picture below shows, it extends a few feet beyond the original wall into what had been the paved street.
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This blog exists for one purpose: to follow the progress of the CTA substation project. Your comments relevant to that topic are very welcome.