This is how overpasses were built for 85. The street was detoured to the side and an overpass built next to it. Even Highway 17 had a bent detour like this from 1991-1993. The overpasses in the Winchester Blvd section caught fire during construction more than once.
This is by the entrance to 85 North. 85 North started here from 1973 - 1994.
The trench is being dug to build the supports for the Stevens Creek
overpass. Some of the ramps from 85 to 280 were reconstructed in 1992.
This is the same area, one month later.
In 1985,† it looked like 87 would by open and done by 1987, along with 85 from 87 to Miyuki.
Route 85 Construction Photos
† California Highway 85 Index Page