This past Saturday, J.T. Wimsatt granted us an inside look at construction on 820 Olive Street, a 49-story high-rise development now underway in Downtown Los Angeles.

Between 8:00 am and 5:30 pm, a 50-man crew worked with four pumps to pour approximately 4,600 cubic yards of concrete, or 460 truck loads.  This averaged out to approximately 537 cubic yards per hour.

820 Olive Street, also known as 825 Hill Street, will include a total of 516 dwelling units and 4,500 square feet of ground-floor commercial space.  When completed, the 637-foot tower will be among the tallest residential buildings in California.

Check the process out in the video below, with footage provided by architectural photographer Hunter Kerhart.