Seaway Bank and Trust Company, Michigan Avenue Facility Basic Info Reviews Routing Numbers Map & Direction Name: Seaway Bank and Trust Company, Michigan Avenue Facility Main Office: No Service: Full Service Brick and Mortar Office Location: 11108 South Michigan Avenue Chicago, Illinois 60628 Cook County View other branches Phone: 773-660-8950 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer071001216YY071921707YN075017853YN From: To: