when was the big walker mountain tunnel built
Big Walker Mountain Tunnel The 4,229-foot (1,288Â m) tunnel was first opened in 1972 after five years of construction labor. It carried a price tag of $50 million, which at the time was the most expensive single project undertaken on Virginia's interstate system.[1] The opening of the tunnel reduced the travel time from Wytheville to Bland County by 30 minutes.[2]
Lincoln Tunnel The Lincoln Tunnel was originally proposed in the late 1920s and early 1930s as the Midtown Hudson Tunnel. The tubes of the Lincoln Tunnel were constructed in stages between 1934 and 1957, having been delayed due to various reasons. The central tube, which originally lacked sufficient funding due to the Great Depression, started construction in 1934 and opened in 1937. The northern tube, which started construction in 1936, was delayed due to World War II-related material shortages and was opened in 1945. Although the original plans for the Lincoln Tunnel called for two tubes, a third tube to the south of the existing tunnels was planned in 1950 due to high traffic demand on the other two tubes. Due to disputes over tunnel approaches, construction on the third tube did not start until 1954, and the third tube opened in 1957. The Lincoln Tunnel underwent a series of gradual improvements in following decades, including changes to security and tolling methods.