Cascade Sierra Solutions opened two new locations where they will help administer clean truck programs at the ports of Charleston, S.C. and Tacoma, Wash.

The Charleston Green Trucking Center staff includes branch manager Harry Johnson II and technical advisor Erin Griesemer.

Harry Johnson II joins CSS with 10 years of transportation and sales experience. He holds a B.S. degree in Management and Logistics from Clemson University. He has held postions as a transit driver, fleet manager, and operations director at a logistics company.

Erin Griesemer has a wealth of experience relating to the Port of Charleston, drayage operations, and the transportation industry. She is an experienced dispatcher with an Associate of Business degree from Trident Technical College in North Charleston.

In Tacoma, technical advisor Ben Holcomb brings his experience and knowledge of fleet operations management, logistics coordination and transportation brokerage to the new CSS facility there. Holcomb was the branch manager for the first CRST location in Portland, Ore. He holds a B.S. degree in Merchandise Management from Oregon State University.