Casco Bay Steel Structures, Inc., has used commercial loans from Bangor Savings Bank to expand business and increase productivity. Dana Ouellette, who was the second employee hired and has worked at the company for 18 years, grinds splice blades for bridge construction. Casco Bay Steel Structures, Inc., has used commercial loans from Bangor Savings Bank to expand business and increase productivity. Dana Ouellette, who was the second employee hired and has worked at the company for 18 years, grinds splice blades for bridge construction.