Allies of World War I
The road is named in honor of the Allies of World War I. The Boulevard of the Allies was rededicated on June 29, 2008 as part of the celebration of Pittsburgh's 250th anniversary. As part of the rededication, American flags have been added on both sides of the boulevard as it elevates toward the Liberty Bridge ramp and thirty temporary banners celebrating the Allies of World War I have been affixed, following the road to its end.