People tend to check in during these times:
@swim r. Jerk your wheel to the right while you're driving down...if you happen to be traveling without moving
Beware of idiot cyclists that don't wear helmets.
Heads up, there are quite a few cyclists on here. Then there is the exceptional dumb ass who rides without a helmet.
The grade was built by the Norwegian settlers of Thousand Oaks from 1909 to 1911 using dynamite, manual labor and horse-drawn earth movers. A historic marker is near the top.