Portal:U.S. roads/Did you know/July 2019

...there is a sign (pictured) at the terminus of U.S. Route 50 in Ocean City, Maryland listing the distance to Sacramento, California?
...the construction of the Eisenhower Tunnel became an event in the history of the women's rights movement when Janet Bonnema, the lone female engineering technician on the project, was initially not allowed to enter the tunnel and sued for the right to do the same work as her male counterparts?
... that the portion of U.S. Route 209 in New York had five different designations over a span of 10 years in the 1920s and 1930s?
... that Washington State Route 99 passes under downtown Seattle in a tunnel that was excavated by the world's largest tunnel boring machine?
...that a controversy occurred when the Daniel Boone Parkway in Kentucky was renamed to the Hal Rogers Parkway, after a congressman who had secured funding to get tolls removed from the road?