The Armstrong Tunnel's chief engineer was Vernon R. Covell, an American Engineer with a number of works of historical significance.
The chief engineer was Vernon R. Covell of the Allegheny County Public Works Department. Vernon R. Covell was an American engineer. A number of his works are listed on the National Register of Historic Places. The National Register of Historic Places (NRHP) is the United States federal government's official list of districts, sites, buildings, structures and objects deemed worthy of preservation for their historical significance. 
