Todd is the Executive Director for the Colorado Stone, Sand & Gravel Association. Prior to that, Todd spent many years in the construction, aggregate mining and the concrete industries . His experience includes managing businesses and operations in both the U.S. and Canada.
![part-46-training](https://minesafetyinstitute.org/wp-content/uploads/2017/12/Todd-R.-Ohlheiser-e1513384402644.jpg)