groundbreaking in its day, but is now indanger of breaking apart.The Old Concrete Road up the face of Mill Mountain is included on a list often endangered historic sites. The list wasreleased today by Preservation Virginia. The road was built in the 19- 20's. At the time, it wasthe longest, continuous concrete road built on a 6 to 10 percent grade. It also had the only "loop- the- loop bridge, east of theRocky Mountains. It's now used as a foot path, and the retaining walls aredetereorating, according to Preservation Virginia.Other endangered sites from our areaon the list include the Town of Pamplin in Appomattox County, the Hook- Powell Moorman farm nearBooker T. Washington NationalMonument in Franklin County and the Phlegar Buildingin Christiansburg. You can find the complete list on our website.