Browse Items (1 total) Tags: Jasper Street Addition Browse All Browse by Tag Search Items Sort by: Title Creator Date Added Photo of Houses under construction Jasper Street Addition. Photograph of homes under construction, Jasper Street Addition, Decatur, IL. Tags: Decatur IL., Jasper Street Addition, New Homes, Photo File: Streets, Under Construction Featured Item Sangamon Valley School District Collection Finding Aid This is the finding aid for the Sangamon Valley School District Collection.