Here's a (pre-repair) photo of those energy dissipator blocks at the bottom of the spillway, including people for scale:
http://media.fishreports.com/reports/img-20170303-78a7bb40.j...
Hard to comprehend how massive those blocks are...
http://media.fishreports.com/reports/img-20170303-78a7bb40.j...
Hard to comprehend how massive those blocks are...
Juan (blancolirio) posed a very good time-lapse/montage (including footage from the DWR) that shows the entire repair project. The audio has comments from Keiwit's executive project director of the repair project about the insane amount of material and work that was needed.