Washington Electric Cooperative, Inc. Share: Electric Washington Electric Cooperative, Inc. Visit Website 440 Highland Ridge Road P. O. Box 800 Marietta, OH 45750 (740) 373-2141 (740) 885-5916 (fax) About Rep Info Map About electric distribution cooperative Whom to Contact Jeff Triplett General Manager What's Nearby? Distance: 5 10 15 20 25 50 mi. Upcoming Events view all events The Riverview Building 100 Front Street Marietta Ohio 45750(740) 373-5176