Early Flooding 2017

The first major flooding incidents in Utah Valley are purely man-made.

The gates of the seldom-used spillway at Deer Creek Reservoir were opened.

KSL reports on warnings from the NWS about release of excess water from Deer Creek Reservoir into the Provo River.

In order to provide better control for spring runoff, the water management administrators decided to allow excess flow from Deer Creek Reservoir now.  The spillway and dam hydro facilities were opened to bleed off some of the totally full reserves.

Over the weekend, this resulted in flooding all along the Provo River down to Utah Lake.

Water roaring over the weir at the collection dam near Nunn's Park.

The popular riverside trail through Provo Canyon was later closed as parts of the pavement was undercut by the river current and fell into the rushing waters.

Deseret News article on the canyon trail closure.  SLTrib also mentions.

If this is the full extent of flood damage, residents of Utah County have dodged the bullet.