ALTON – An outdoor shopping center in Alton home to Panera Bread, Dollar Tree, and more recently sold for over $9 million.Oakwood Plaza, located at 1837 Homer M. Adams Parkway in Alton, was sold last week for a total of $9.3 million, according to real estate brokerage firm Marcus & Millichap.The 45,400 square foot Class A retail space was built in 2005 on 8.96 acres just off Homer M. Adams Parkway and contains 16 suites for a mix of retail and restaurant tenants.Marcus & Millichap ...