Ice Advice; Should I stay or should I go?

I picked up a load of Canola and the freezing rain started. There had been a nasty valley just a couple miles before I got too my shipper. Asked Shipper if there was a way around it. He told me that two days prior another driver from my company jack-knifed backwards going up the steep side, and that was just on wet packed snow. He then told me how to get to a minor highway four miles west, with the same valley, but a gentler slope. I reached the highway, and it is very icy, was testing the ABS at ten miles per hr. and they were chattering constantly. Reached the top of the valley, and am now parked with four ways on.

In the last two days we've had two drivers jack backwards; I really don't want to drive the numbers any higher. It's been a long day, and I have 6 hrs. of driving ahead of me. The thought of sitting here overnight and waiting for sanders in the morning is dismal ....the thought of having the drives start spinning half way up the far side is worse. How do you experienced drivers make these decisions? Right now I'm kicking myself for not having stayed in Shipper's yard, but at that time couldn't tell what the highway would be like. Couldn't find any weather/road reports on the radio.

Six months driving experience, and I had the drives start spinning going up a bad hill in Alberta a couple months ago. That hill was sanded, this one isn't. Took foot off throttle, and gently reapplied ...it caught and I continued. Do I feel lucky? Should I stay or should I go?

 

Thanks fellas'; I picked up on a tiny dirt road, this was the closest pavement, and I was hoping to make it to a major highway. In my personal 4 wheel truck I wouldn't hesitate, I'd get the passenger side wheels on the shoulder , come down slow. I'm sure that I could get this double trailer set down the hill, it's the getting up the other side I'm concerned about. I would be hesitant under normal circumstances, but the recent events of our two other drivers in similar circumstances kinda' freaks me out. The temperature is enough above freezing now that this ice may melt by itself, but that will take a little time. Thank you for your responces.