Adjusted shoreline and breakwaters
added historical attributes to Hangar 1, Naval Air Station Glenview
added historical attributes to Chicago Harbor Light
Added features to Lock #1 of Appleton Lock 1-3 Historic District.
Added historical attributes to Lock #1 of Appleton Lock 1-3 Historic District.
Added features to Lock #2 of Appleton Lock 1-3 Historic District.
Added historical attributes to Lock #2 of Appleton Lock 1-3 Historic District.
Added features to Lock #3 of Appleton Lock 1-3 Historic District.
Added historical attributes to Lock #3 of Appleton Lock 1-3 Historic District.
Added features to Appleton Lock 4 Historic District.
Added historical attributes to Appleton Lock 4 Historic District.
Added historical attributes to Cedars Lock and Dam Historic District.
Added historical attributes to Guard Lock in Little Chute Locks and Canal Historic District.