U.S. Route 101
The nearly highway's northern terminus is in Tumwater, Washington: the route remains along the Olympic Peninsula's coastal perimeter west, north, and east; the northernmost point on the highway is in Port Angeles. The southern terminus of US 101 is in Los Angeles at the East Los Angeles Interchange, the world's busiest freeway interchange.
U.S. Route 301 in Maryland
Originally, the route went all the way along former MD 3 into Baltimore and ended near present-day Maryland Route 295 Russell Street. As US 301, it was upgraded into a four- and six-lane divided highway throughout in the 1940s and 1950s. In the 1960s, the route was rerouted along US 50 to the Eastern Shore where it split from US 50 and was routed from there up former Maryland Route 71 into Delaware. Today, Route 301 is a multi-lane highway throughout its path through the state with the exception of the Governor Harry W. Nice Memorial Bridge; the nine miles (14 km) of MD 3 between US 50 and Interstate 97 is also a four- and six-lane divided highway and is part of the same continuous physical route.