The speaker for our September 2018 meeting was Sergio Escobar from the California Department of Water Resources. Sergio spoke to our chapter about the massive reconstruction effort that has been in progress during the spring and summer of 2017 and 2018 on the Oroville Dam. As part of the project over 1000 people have been working on the dam for 7 days a week during the dry season. The construction team has placed over 1,000,000 cubic yards of concrete as part of the design improvements. Sergio’s presentation included photos showing the progress of work on the main spillway and emergency spillway over the course of the two dry seasons. At the conclusion of the project, Sergio shared some of his lessons from the project. The main lesson included the importance of open communication between design disciplines on the project, the importance of having management on the site, and  regular meetings between a facilitator, the design team, and the contract team. As a result of these good practices there has been no adverse construction claims and only two minor injuries for a project of this scale.