Vancouver Island’s wet season arrives reliably every fall, and properties that aren’t prepared for it tend to show the evidence by January — flooded low spots, eroded slopes, collapsed ditch walls, and driveways that have turned into mud tracks. Most of these problems are preventable with a bit of attention before the rain sets in. Here’s what’s worth doing before October.

Clear Your Drainage Ditches

Ditches do their job when they’re clear and have a consistent grade that moves water downhill. Over summer they accumulate debris — leaves, vegetation, silt — that reduces capacity and slows flow. Before the wet season, walk your ditch lines and clear any blockages. Pay particular attention to culvert inlets and outlets, where debris tends to concentrate and where a blockage causes the most damage — a culvert plugged in a heavy rain event can back water up into a driveway or yard very quickly.

Check Your Culverts

Culverts should be clear and structurally sound heading into winter. Signs of trouble include visible crushing or deformation, inlet or outlet erosion suggesting the culvert isn’t handling flow properly, and animal burrows around the ends. A culvert that fails during heavy rainfall in January is a miserable and expensive problem. A few minutes of inspection in September is well worth the effort.

Address Low Spots Before They Flood

Low spots in yards, driveways, and access areas that collect water during heavy rain won’t get better on their own — they’ll get worse each season as the saturated ground becomes less stable. If you have persistent low spots, fall is a good time to address the grading while the ground is still workable. Filling and regrading a low spot in October is much easier than trying to do it in February when the ground is saturated and access is difficult.

Stabilize Bare or Disturbed Ground

Any bare or recently disturbed soil — cleared areas, freshly graded slopes, driveway edges — is vulnerable to erosion during the wet season. If you’ve had clearing or grading work done over summer, seeding exposed areas before the rains arrive gives grass time to germinate and establish enough root structure to hold the soil. Even a light cover of grass significantly reduces erosion compared to bare ground.

Inspect Retaining Walls

Check retaining walls for signs of movement, cracking, or leaning before winter loads them with saturated soil. Look at the drainage outlets — weeping tile outlets and drainage aggregate behind the wall should be clear and functional. A wall with blocked drainage is carrying additional hydrostatic pressure every time it rains heavily, which accelerates any existing problems.

Look at Your Slopes

Slopes that have been stable through summer can become unstable when the soil saturates. Look for tension cracks near the top of slopes, bulging at the toe, or areas where vegetation has died back in a way that suggests ground movement. These are early warning signs of potential slippage. If you have a slope that concerns you, getting a look at it before the wet season — rather than during it — gives you options.

Think About Access

If you have soft or marginal access to outbuildings, fields, or work areas, consider what those routes will look like after two months of rain. Gravel and drainage improvements are much easier to do in dry conditions. A modest investment in access improvement in fall can save significant frustration — and potential vehicle or equipment damage — through the winter.