There is only one spur of
Interstate 5 called the 605. It is located in the
Los Angeles area and is called the
San Gabriel River Freeway, since it parallels the river's course for the most part. Its northern end is at
Interstate 210 in
Monrovia and its southern end is at
Interstate 405 in
Long Beach. It was completed in 1971 and for some strange reason
CalTrans decided to never put a single
control city for any of the signs for this freeway. All they say are "
North," "
South," "Thru Traffic," and "
Freeway." It is 27.5 miles long.