Ordinances are listed sequentially along the line, along with further commentary.
Union Street to Robey St.
July 7, 1902
Ordinance for elevation of paralleling Burlington Route and Chicago & North Western South Branch and Chicago Terminal & Transfer Railroad from Union Street to Robey St. (Damen Ave.). Ordinance also for raising of Metropolitan West Side Elevated Railway bridge at 16th St. over these railroads. Deadline for completion December 31, 1908. Ordinance amended December 14, 1908, extending deadline for completion to December 31, 1909. Ordinance amended June 20, 1910, extending deadline for completion to August 1, 1910.
Robey St. to Washtenaw Ave.
September 3, 1907
Ordinance for elevation of paralleling Burlington Route and Chicago & North Western South Branch and Chicago Terminal & Transfer Railroad from Robey St. (Damen Ave.) to Washtenaw Ave. on Burlington Route, and to 12th St. (Roosevelt Rd.) on other two railroads, and elevation of paralleling Chicago Terminal & Transfer Railroad and Pittsburgh Cincinnati Chicago & St. Louis and Chicago Junction Railway from 12th St. (Roosevelt Rd.) to Marshall Blvd. (31st Blvd.) Ordinance also for raising of Metropolitan West Side Elevated Railway bridge at Campbell Ave. over several of these railroads. Deadline for completion December 31, 1910. Ordinance amended December 19, 1910, extending deadline for completion to December 31, 1911.
Washtenaw Ave. to 44th Ave.
January 24, 1898
Ordinance for elevation of Burlington Route from Washtenaw Ave. to 44th Ave. (now Kostner Ave.). Deadline for completion December 31, 1902.
In 1895, the first Laramie Ave. viaduct was constructed.
By 1920's, railroad elevated at Austin Blvd.
A grade separation project in Aurora was started in 1915 and completed in 1923.