In the 1950’s, a section of what is now the 15 in San Diego was built. Known then as the Wabash Freeway, it ran from Harbor Blvd to 40th St in the City Heights area. Today, it is known as the 15 freeway and has been upgraded significantly. Access to the old freeway was a bit different than today. Nile Street in North Park used to have a direct connection with the freeway. Today, Nile Street ends in a park. A section of the old ramp still exists, however, as an access to the park.