eastbound in Parleys Canyon|211x211px Parleys Canyon begins where
I-215 merges into I-80 in
Salt Lake City and ends at Parleys Summit. The lower part of the canyon is relatively twisty and narrow and had to be
dynamited to make way for I-80. Despite this, the interstate remains six or more lanes wide throughout the canyon; it is built over Parleys Creek in many places. Work is also underway to extend the
Parleys Trail multi-use path through this segment to improve non-motorized access. The canyon widens dramatically near
Mountain Dell Dam and
Utah State Route 65 (SR-65) splits from the freeway (which turns southeast temporarily) to provide access to
Morgan County to the northeast. SR-65 also provides a connection to a local road leading over the ridge to
Emigration Canyon in the same area where the
Mormon trail crossed into that canyon.
Little Dell Dam can be seen higher up on the side of Parleys Canyon in this area. As the freeway turns back toward the east, there is also an exit for the road leading up
Lambs Canyon (a side canyon of Parleys Canyon).The area around Parleys Summit is part of the
Summit Park census-designated place (CDP). However, this area is more commonly referred to as Jeremy Ranch or Parleys Summit. Here the canyon is wide enough to form large communities along the sides of the freeway along the gentle mountain slopes. On the other side of the summit the freeway continues into the
Snyderville Basin, which is where the popular resort town of
Park City is located. Also within the basin is the ski jump built for the
2002 Winter Olympic Games and the large shopping district at
Kimball Junction.
Wildlife crossing A $5m wildlife overpass was completed in December 2018 to allow wildlife to cross I-80 safely. The overpass is 50 feet wide and 320 feet long; animals near that location by exit 140 are funneled onto the overpass with 3.5 miles of fencing. ==Climate==