CA 15 is a full freeway and ends at I-5, so why isn't it an Interstate? The answer is that it wasn't a full freeway until 2000, and there is one interchange upgrade project to go before California is ready to extend the red, white, and blue. Considering how recently the road opened, there's some nice old-looking button copy both ways. All photos were taken while traveling NB, so the SB photos are of spotty quality.

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Northbound


The last photo is on the Exit 2B ramp, which is the exit for CA 94. For an interchange that's about to be redone, CA 94 has all new signs. I guess that'd be considered a waste of money in most states.


The last two photos are on the left and right sides of the same gantry.


The last two photos are on the Exit 5A and Exit 5B ramps, respectively. The Exit 5B ramp is also used by traffic entering CA 15 NB from Exit 5A. This is because the newest part of CA 15 was wedged in next to 40th St. with a whole lot of lanes and little room to play with.


Still on that NB C-D road between Exits 5A and 5B, beneath a one-block park that was surely part of a compromise to get CA 15 finished. That turns the freeway into a tunnel and limits sign height.


The end of CA 15 and the beginning of I-15, never mind the reassurance shields for the state route. The last two photos are on the left and right sides of the same gantry.


The first two photos are on the Exit 6B ramp (alongside the freeway), and the third is the last sign on the mainline before passing under I-8 and magically becoming an Interstate. CA 274 no longer exists, but even when it did, it was never on Aero Drive.

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Southbound


The last photo is on the Exit 5B ramp. Let's see if exit numbers arrive before this becomes I-15.


Up to and on the ramp for Exit 5A.


The last photo is on the branch of CA 15 SB that continues to I-5 SB.

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Continue north on I-15 NB
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