I just saw this info this morning - hopefully it isn't anything serious and will re-open quickly - the road in question is highway 224 - so essentially until they re-open it, nothing past Fish Creek is accessible unless you want to go all the way around 26, which is a REALLY long detour:
A wildfire has the highway closed between Fish Creek Rd and 3 Lynx Creek. Traffic is detoured using US-26 via Timothy Lake. Use alternate route.
That is from the ODOT Tripcheck.com website.
Hopefully it isn't too bad. The description changed and the road is not totally closed now:
A wildfire has the EB lane closed between Fish Creek Rd and 3 Lynx Creek. EB and WB traffic is being flagged through the WB lane. Use caution.
It must not have been a big deal. It appears the closure is gone now. Sorry for the false alarm!