Twice a year the sunrise lines up with the street grid downtown which runs east-west. The date corresponds to the equinox when the length of the day and night are equal. They mark the beginning of the spring (vernal equinox) and fall seasons (autumnal equinox).
I had been planning this shot during the spring equinox for a few years but had always missed it due to either there being too much cloud cover on the horizon or hosting visitors and being unable to get away. I cannot shoot during the fall equinox because I always travel to visit my family in Canada. So this time when I woke up, and I saw there were finally clear skies I was so excited for the opportunity to get this shot that I've been chasing for some time.