S-Curve Stands for Stuck Curve

A big rig trying to negotiate the S-curve at the summit on Carbon Canyon Road near Summit Ranch and Carriage Hills on the Chino Hills side of the canyon got stuck and caused the road to be partially
closed for a half hour.

The closure was a half-hour ago, at 8:30, and a message has just come in that the road is now clear at 9:00.

As has been mentioned here before and elsewhere, there are too many large trucks ignoring the many advisory signs warning against vehicles longer than 50 feet negotiating that curve.

Some that do try it wind up swinging into opposing lanes to make the curve, risking accidents.  Others, like this one, get stuck, causing more inconvenience.

There is a traffic study in phase two underway and there has been an occasional police presence in the form of writing tickets for crossing the double yellow centerline.  We'll see what the study and future discussion yield.