Years ago, there used to be a dip on 680 south of Walnut Creek I think it was. Everyone knew about it, too, because it was fun to hit at 75mph.
[as Liz points out in the comments, it was just south of the Benicia Bridge]
Well... 120 out of Benton Springs connects US-6 to my beloved US-395. So when a sign announced dips next 5 miles, my interest was peaked. Increasing to 80, I was ready. Woo, woo, woo, woo, wee. And woo, wee, woo, wee, whup!
Most excellent fun!
It was just after your crossed the Benicia bridge heading south on 680….hit every time I came home from college 😁👏🏼👏🏼