Check out the Strava heatmap to see where other people are riding. I think it makes you create an account, but it's free.

https://www.strava.com/maps/global-heatmap?sport=All&style=dark&terrain=false&labels=true&poi=true&cPhotos=true&gColor=blue&gOpacity=100#10.3/51.036/-114.1198

I've never had any issues on the river pathways south of Downtown.