[Repeal The 17th]

They have to place the RCC in 2 foot ‘lifts’, is that right?

[EarthResearcher333]

Photographs show a "lift" height closer to 1 foot on the sloped spillway grade (KJ_oroville_0710_09_19_17.jpg). If the Horizontal "lift" corresponds, then the lift value would be closer to a 1 foot height average. Yet in the distance in this photo, it shows a lift height that is higher than 1 foot near the thick sidewalls.

Kiewit may be doing a variable application based on the equipment compression (roller compactor verses the excavator "shaping" flat plate for the spillway slope).

Other info: They were placing RCC, compacting it, and raising the large "football field" size area about 5 feet per day. This was close to where they placed a record amount of 3,143 cubic yards of RCC in one 12 hour shift.

Currently they are close to 70 percent of the estimated 350,000 cubic yards of RCC that makes up the middle section. Kiewit has stated that they have placed 230,000 cubic yards of RCC to date and have 85 vertical feet to go (as of Oct 4).