After spending the past few days exploring the countryside of Western New York, Northeast Ohio and Western Pennsylvania, I decided that this week's Throwback Thursday would pay homage to an August 2004 trip that I made to the Keystone State. I had taken PA 28 on my way northeast from Pittsburgh and encountered a bunch of old signage along the way from Pittsburgh to Kittanning. The aging, button copy signs have since been replaced. This particular example is on PA 28 northbound at the Blawnox exit, near Aspinwall and Blawnox. It even looks like the Exit 9 may have been tacked on the sign as an afterthought.
One of the more intriguing mysteries of the early US Route System in California is where the original south terminus of US Route 91 was intended to be located in the Mojave Desert. This blog is a little different than my usual behind the wheel fare and explores why US Route 91 ultimately ended at US Route 66 in Daggett instead of Bannock. What ultimately became the US Route System was first discussed during the American Association of State Highway Officials ("AASHO") during their annual 1924 meeting. Ultimately the AASHO recommended to the Department of Agriculture to work with the States to develop a system of Interstate Highways to replace the many Auto Trails in use. The Joint Board on Interstate Highways was ultimately commissioned by the Department of Agriculture and it's branch agency the Bureau of Public Roads in March of 1925. The Joint Board on Interstate Highways first met in April of 1925 and decided on the new interstate road network would be known a