Nothing Hits the Floor: Lean for Safety and Efficiency (Greater Des Moines CoP)


Lean is generally thought of in relation to scheduling or productivity, but it doesn’t have to stop there. Lean principles can also contribute directly to a safe jobsite. In 2016, Weitz piloted the “Nothing Hits the Floor” program on two jobsites before taking it company-wide, and have continued to refine it since. This presentation will cover lessons learned and best practices for a safe and efficient jobsite through Nothing Hits the Floor.

This meeting will be held at the newly renovated Weitz offices which were toured during construction as part of the July 2021 Lean CoP presentation.


  • Jenny Herrera – The Weitz Company
    Jenny  is an assistant project manager. She has worked for Weitz since graduating from Iowa State and currently serves on the Greater Des Moines Lean Community of Practice core member group.
  • Tim Hurley – The Weitz Company
    Tim is a project superintendent. He began his career with Pepper Construction in Chicago and worked for various general contractors before joining the Weitz team six years ago, and also served as the Carpenter’s Union Business Agent in Des Moines. He has been implementing Lean principles on projects for the past nine years.