The Utah Lake Authority is working with all of the municipalities around Utah Lake, Utah County, and others in an effort to coordinate city and county trails so that there will be a continuous trail system that circles the entire lake. Currently, focus is on the sections between Saratoga Springs and Provo, around the east side of the lake.
The Mountainland Association of Governments has been generous to provide a geographic information system (GIS) map that shows the trail plans and other helpful information. The map is below, but here is the link to the larger version: http://www.mountainland.org/utahlaketrailplan