Speaking of carbon copying signs, perhaps it is about time that Interstate 10 guide signs in Mobile County, Alabama reflect Biloxi and/or New Orleans? Pascagoula made sense when Interstate 10 was originally built, because the freeway defaulted onto U.S. 90 at the state line for many years before Mississippi completed its portion. Nowadays, Pascagoula makes little sense, as Interstate 10 travels through Moss Point, Pascagoula’s neighbor to the north, and U.S. 90, the route that still travels to the coastal city, is not directly accessible from the freeway anymore. Yet all these years, little thought has been given into changing the control city to something else.

1974 Alabama official highway map.

Furthermore, Interstate 10 gains the control city of Mobile along eastbound from Gulfport and Biloxi through Moss Point. There’s no mention of Pascagoula outside of exit signs for Mississippi 613 and 63.

1971 Gousha Alabama/Georgia highway map.

The same can be said for Interstate 10’s control point from Slidell, Louisiana, which features the U.S. 90 city of Bay St. Louis. When Interstate 10 ended at Mississippi 607 (Exit 2) from Louisiana, it made sense to have Bay St. Louis, since MS 607 to U.S. 90 carried motorists directly into the Hancock County city. Nowadays Interstate 10 bypasses the community well to the north.

1971 Mississippi Gousha Mississippi highway map.

Throughout the years the same cities are carbon copied without any thought to updating the signs. However it is possible to change such designations. Texas officials altered signs in 2007 for U.S. 75 leading north from Dallas that replaced Sherman with McKinney…