Legacy at Millennium Park Land Surveys
Gremley and Biedermann were contracted to do Alta/ NSPS surveys, Air Rights Division, historical facade location, building/ damage control and skybridge locations. The historical facade was to remain as construction of the 73 story building took place behind.
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The Following life story was taken from a document found in the PLCS archives which was preserved by Chicago Guarantee Survey Company. Said archive dates back to the mid to late 1800s.
Survey of lot 4 and the East 12′ of lot 5.
This one seems kind of overwhelming at first. The pages are so battered and torn that it is hard to decipher some of what is going on.
I believe this survey to be done by Eckstein for Stein and Baumgarth of lot 8 in Nutts subdivision of lots 1,2, and 3 in block 64 of a subdivision of the Southwest quarter of section 21-39-14.
Here we see a survey done of lot one in block 3 in Ashland addition to Chicago, being a re subdivision of the overall Chicago subdivision. This survey seems to also require a vertical component in the Chicago City Vertical Datum system. I am sure I will cover more on CCD, or Chicago City Datum, in later posts as they arise.
PLCS was asked to calculate the height of the tallest stack of mattresses for the Guiness book of World Records.
James Schaeffer and Schimming were contracted to provide layout control for all aspects of the project. From laying out the building control to anchor bolt locations JSS equipped the entire site with the precision and accurate structural placement it took to complete the job