Portal:U.S. roads/Did you know/April 2012

Launch of Discovery on February 24, 2011

...that Florida State Road 528 was the site of a 40-mile (64 km) backup near Cape Canaveral from sightseers wishing to view the final launch (pictured) of the Space Shuttle Discovery in 2011?
... that U.S. Route 102 was the first US Highway designation to be decommissioned in 1928?
... that U.S. Route 63 and U.S. Route 163 are separated by 1,000 miles (1,600 km)?
...that the Route 4 bypass around Charlotte, North Carolina is numbered as such because the loop has a radius of about 4 miles (6.4 km)?
...that Maryland Route 135 once had a sign that suggested to truck drivers "If Brakes Fail Ditch Truck Immediately" on the highway's steep descent of Backbone Mountain?