The longest street in Los Angeles County is Sepulveda Boulevard which runs 42.8 miles between Mission Hills in the San Fernando Valley and Long Beach (26.4 miles through the City of Los Angeles).
The shortest street in Los Angeles is Powers Place (shown in photo above), located in the Alvarado Terrace Historic District, just west of Downtown Los Angeles. It extends a mere 13 feet, between Alvarado Terrace and Bonnie Brae.
The steepest grade in Los Angeles (at 33.3 percent) is Eldred Street in Highland Park. It is the third steepest street in the nation. Incidentally, besides Eldred Street, there are three other Los Angeles streets steeper than any streets in San Francisco: 28th Street (San Pedro) at 33 percent, Baxter Street (Echo Park) and Fargo Street (Silver Lake), both at 32 percent. They rank 3, 4 and 5 in the nation, respectively. San Francisco’s steepest streets (ranking nationally 9 and 10) are 22nd and Filbert Streets, both at 31.5 percent.