Ditch Mowing

What This Service Involves

Our specialized ditch mowers cut the foreslope, invert, and backslope of roadside drainage channels while leaving a stabilizing root mat that resists erosion. We calibrate cut height to control cattail and reed canarygrass without scalping the channel, preserving the biofiltration function that Western Washington stormwater programs rely on. Excess vegetation left standing through the wet season restricts flow and causes shoulder ponding, so timed mowing directly supports conveyance capacity. Crews flag any channel damage, blockages, or failing culvert inlets they observe for your maintenance follow-up.

Benefits

Restores design flow capacity ahead of the fall rains; retains a protective root layer that limits channel scour; identifies culvert and inlet problems during the mowing pass; supports vegetated-conveyance credits in your stormwater program; keeps standing water off adjacent shoulders and travel lanes

Our Process

1) Walk representative ditch reaches to confirm cut height and sensitive-area limits; 2) Position traffic control and low-ground-pressure equipment for slope work; 3) Mow foreslope, invert, and backslope while preserving root structure; 4) Report blockages and deliver a segment-by-segment completion log

What Affects the Cost

Total ditch linear footage and channel cross-section; slope steepness and soil saturation affecting equipment choice; vegetation type such as dense reed canarygrass; proximity to fish-bearing waters requiring added protections; number of maintenance cycles per year

Best Time of Year

Ditch mowing is best completed in late summer and early fall so channels carry full capacity when Puget Sound's heavy October and November rains arrive.