I 70 will be closed for several days minimum. They can't even get the debris removed to see how much road damage there is. One report talked about lateral forces that may have moved the elevated road structure. If that is the case, it will be a major rebuild.
When I left Bonneville last year, my wife warned me that I 70 was closed due to huge fire in that area . I had to take I 80 home - not a huge deal. In one year, that whole area had be devastated first by fire and now by slides from the fire damaged area.
Do not even consider taking the detour if you are pulling a trailer. It is two lane most of the way and not very big rig friendly. Adding the large increase in traffic and it is a mess. If you are just in a car and want to see some neat scenery, you could take US 40 all the way from Winter Park area to just past Park City, UT and intersect I 80 at the top of the ridge.
TAKE I 80! That is the route I will take even though it add several miles for me - I live not too far off of I 70 west of Denver.
Jim