President of masonry contractor pleads guilty to bribing former Amtrak employee in exchange for millions of dollars in extra work on 30th Street Station

May 1, 2025

PHILADELPHIA — The president and sole owner of a masonry restoration contractor hired by Amtrak for façade restoration and repair at 30th Street Station pleaded guilty Wednesday to conspiracy to commit federal program bribery and making and presenting a false claim, according to the U.S. Attorney’s Office (USAO), Eastern District of Pennsylvania.

Mark Snedden, 69, of Munster, Indiana, admitted to conspiring with Lee Maniatis, Khaled Dallo, and Donald Seefeldt—vice presidents with Snedden’s company—to bribe a former Amtrak project manager with approximately $323,686 worth of paid vacations, jewelry, cash, dinners, entertainment, transportation, and other items of value. In exchange, the former project manager approved over $52 million in additional change orders and contract modifications and provided the contractor with internal information about the project.

Maniatis, Dallo, and Seefeldt were previously charged for their alleged participation in the scheme, and Seefeldt pleaded guilty to conspiracy to commit federal program bribery in February 2025. All three men were suspended by the Federal Railroad Administration from participating in all federal funded procurement and non-procurement programs and activities.

As a result of the scheme, Amtrak was overbilled by more than $2 million for completion of the repair and restoration work. Federal funding supplied 90 percent of the money Amtrak used to pay the contractor for the façade project.

Snedden is scheduled to be sentenced August 13 and faces a maximum possible term of 10 years’ imprisonment, the USAO said in a press release.

In addition to Amtrak’s Office of Inspector General, the case was investigated by the FBI and the U.S. Department of Transportation OIG. Assistant United States Attorney Jason Grenell is prosecuting the case.

Reports of fraud, waste, or abuse; criminal or unethical acts affecting Amtrak’s property or operations; or mismanagement in Amtrak programs or operations can be made 24 hours a day via the Amtrak OIG Hotline at 1-800-468-5469 or online at https://direc.to/hPAu.
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