There will also be a field trip to the Union Pacific on May 20. Specifically, the visit will include the Harriman Dispatch Center and an interlocking featuring high-speed switches at an important junction just north of Omaha. There is no charge for the site visit, but those interested in attending the trip must be prepared with safety shoes and personal protective equipment. Space is limited, so IRSE requests that anyone wishing to attend contact either David F. Thurston ( This e-mail address is being protected from spambots. You need JavaScript enabled to view it ) or Bill Scheerer ( This e-mail address is being protected from spambots. You need JavaScript enabled to view it ) to reserve space.