This is a wonderful day hike. The reviewers about the trees and blackberries need to take a botany class . we enjoyed the pines, ash, maples and more besides the cottonwoods. The trails to the river are wonderful in late fall when the river is low. This trail is smooth, level and excellent for small kids and elder adults besides bikers. it is well worth it so close to town
I hike this trail regularly, throughout the year. It's actually about 3.6 miles, from parking space to parking space, instead of the 4.6 published here. There's a good layer of wood chips and gravel, so it's only really impassable when the river water is completely over the trail.
Along the trail are HUGE cottonwood trees and blackberries in the summer. Also keep your eyes open for giant banana slugs and shelled snails. An osprey family occupies the nest on one of the trestle supports.
It's an amazingly peaceful trail for being within the city limits.