The Washington County Board of Developmental Disabilities and the Ewing School are located at 1701 Colegate Drive, Marietta, Ohio 45750.

General Contacts

  • Main Phone: 740-373-3781
  • Fax Number: 740-373-1373
  • Transportation: 740-373-3781 Ext. 11

SSA Contacts

  • SSA Regular Hours: 740-373-5147
  • After Hours Emergency Phone: 740-516-5970
  • SSA Fax Number: 740-373-1386

Ewing School Contacts

  • Main Phone: 740-373-3781
  • Transportation: 740-373-3781 Ext. 11


For Media inquiries or more information about anything on this website please contact Austin Schock at

For all other inquiries, please use the below contact form and we will respond as quickly as possible.

Theme: Overlay by Kaira 740-373-3781| FAX: 740-373-1373
1701 COLEGATE DRIVE, MARIETTA, OHIO 45750 PHONE: 740-373-3781| FAX: 740-373-1373

Due to COVID-19, please see our RESTART PLAN for more information on how we are protecting students and staff