Find examples of construction techniques, management, and planning issues.
Here the edging keeps water from draining so obstacles in the form of drainage bars were placed to try to keep the crushed rock from eroding.
A side drainage is subject to flooding along Highline Canal in Aurora, Colorado
The concrete trail has built-in culverts to accommodate water in the railroad drainage ditches; Denver's Sanderson Gulch Trail
Parley's Crossing Trail two-span bridge over I-215; downtown Salt Lake City, Utah