Here’s a great photo from the SDSU Archives looking of the U.S. 80/College Avenue interchange, looking south at then-San Diego State College in probably 1961. A giveaway to the date is the under-construction San Diego State Engineering Building, which was completed in mid-1962.

It wouldn’t become Interstate 8 until later in the 1960s, so U.S. 80 it was, running through Mission Valley west to Rosecrans Street. Through most of its life, U.S. 80 in this area was a couple of miles south, running along El Cajon Boulevard.

The College Avenue interchange today has wider roads, but still has its 1950s-vintage design. Drivers today heading south on College to I-8 still use this circular ramp to enter eastbound I-8. ⚙


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