Hit the brakes. USA has 10 extremely steep roads. Some of them are so steep that access is restricted to 4-wheel drive vehicles and people on foot.
The 10 steepest roads in America can only be found in three states (seven in California, two in Pennsylvania, and one in Hawaii). Here’s the list:
1. Waipio Rd. in Honokaa, HI -- 37% gradient
2. Canton Ave. in Pittsburgh, PA -- 33.30% gradient
3. Eldred St. in Los Angeles, CA -- 33% gradient
4. 28th St. in Los Angeles, CA -- 32% gradient
5. Baxter St. in Los Angeles, CA -- 32% gradient
6. Fargo St. in Los Angeles, CA -- 32% gradient
7. Maria Ave. in Spring Valley, CA -- 32% gradient
8. Dornbush St. in Pittsburgh, PA -- 31.98% gradient
9. 22nd St. in San Francisco, CA -- 31.50% gradient
10. Filbert St. in San Francisco, CA -- 31.50% gradient
Pic: By Lildobe at English Wikipedia, CC BY 3.0, https://commons.wikimedia.org/w/index.php?curid=8919260
