Beginning at a point at the center of the intersection of the main channel of the Mississippi River and Orange Street extended, thence northerly along the centerline of Orange Street to the center of the intersection of Seventh Street, thence westerly along the centerline of Seventh Street to the center of the intersection with Chestnut Street, thence southeasterly along the centerline with Chestnut Street to the center of the intersection with Fifth Street, thence westerly along the centerline of Fifth Street to the center of the intersection with Whicher Street, thence southeasterly along the centerline of Cherry Street to the center of the intersection with Third Street, thence westerly along the centerline of Third Street to the center of the intersection with Green Street, thence southerly along the centerline of Green Street becoming Grandview Avenue to the intersection with Canal Street,