In the U.S., the Interstate Highway System was bypassing U.S. Highways nationwide. The best-known example was the complete removal of Route 66 from the U.S. highway system in 1985 after it was bypassed (mostly by Interstate 40). U.S. 66 was particularly problematic as the old route number was often moved to the new road as soon as the bypasses were constructed, while Highway Beautification Act restrictions left existing properties with no means to obtain signage on the newly constructed Interstate. Some motels were demolished, converted to private residences, or used as storage space while others have been left to slowly fall apart.