HARRISBURG — Prosecutors say the president of an engineering and surveying services firm has pleaded guilty to bid rigging after they say his firm received thousands of dollars through improper and illegal contracts with the state Department of Transportation.

The Attorney General’s office says Christopher Czop pleaded guilty to the felony count Wednesday.

Eight others have pleaded guilty or been accepted into a first-time offender program.

Authorities say millions of taxpayer dollars were lost in the scheme.