Must have been San Francisco,
Below is a listing of at least some of the streets in the US which are steeper than the steepest San Francisco streets.
1. Honokaa-Waipio Road (near Waipio, HI, maximum grade 45%)*
2. Canton Avenue (between Coast and Hampshire, Pittsburgh, PA, 37%)
3. 28th Street (between Gaffey and Peck, Los Angeles, CA, 33.3%)
4. Eldred Street (west of Avenue 48, Los Angeles, CA, 33%)
5. Baxter Street (between Alvarado and Allesandro, Los Angeles, CA, 32%)
5. Fargo Street (between Alvarado and Allesandro, Los Angeles, CA, 32%)
5. Maria Avenue (north of Chestnut, Spring Valley (near San Diego), CA, 32%)
8. Dornbush Street (between Bricelyn and Vidette, Pittsburgh, PA, 31.98%)
VC didn't even make the list...I've been on #'s 3, 4, both 5's. SF's worst (vehicles allowed)
are at 31% grades...
or in LA...
Stick anyone?