Utah State Hwy 14 from Cedar City East to Utah 89

That's the road that runs past the Zion entrance isn't it? expect heavy traffic.

'hairpin` turns on state and federal highways are rarely any tighter than a freeway cloverleaf, or urban intersection. On the tighter ones you might cross the centerline. There are a few state roads in California that length restrictions.

The main issue with 14 would be grades. It climbs substantially from Cedar City to the Cedar Breaks turnoff. 6000 ft to 9800. UT20 further north doesn't climb as high.

Only problem as I noted on other post is steep climb out of Cedar City.
No, this is not main entrance to Zion.

Thanks for those that have responded. UT-14 with it 3800 climb in elevation and with the storm, coming in from Portland OR, 9800 elevation could (and probably will have) snow. So, I'll travel the additional 40 miles up UT-I15 and take the 20 East.
Thanks to all that responded.

OH we drove that last spring, late spring. The grades are steep and so was the snow near the top. Cedar Breaks was still closed. We drove it both ways. Light traffic

20 is a good truck route. You are length restricted from using the rt 9 Zion tunnel.

For what it is worth, we took I-15 to 20 to 89 -- smooth sailing. I avoided 14 because it was icy at the time we were traveling.

I crossed this area in the fall some years ago in a mini-camper (Element). Coming from the east on UT12, I picked up Ut143 at Panguitch, through lava fields to Cedar Breaks. Then north to the top of Brian Head (11200 ft). Then down through the ski resort on 143 to I15. There is a genuine 15mph S curve switchback on that descent. There's a "not recommended for trailers ahead" sign in the ski resort. Sign at the bottom says 13% grades.

Then south from Parowan to Cedar City, and west to Caliente NV and on to California.

Signs on 14 are for 8% grades.