From standing water in St. Johns backyards to basement flooding in Sellwood, we've seen how Portland's 37 inches of annual rainfall can cause problems. Our drainage solutions start with a detailed assessment of your property's grading and water flow patterns.
For typical Portland lots with clay soil, we often install French drains lined with Willamette Valley gravel. In neighborhoods with steep slopes like the West Hills, we might recommend a series of catch basins connected to solid pipe. For homes with historic foundations (common in Irvington), we use discreet solutions that preserve architectural integrity.
We also address secondary water issues like downspout drainage, often redirecting roof runoff into rain gardens planted with native rushes and sedges. These not only solve drainage problems but create habitat for local wildlife.
For typical Portland lots with clay soil, we often install French drains lined with Willamette Valley gravel. In neighborhoods with steep slopes like the West Hills, we might recommend a series of catch basins connected to solid pipe. For homes with historic foundations (common in Irvington), we use discreet solutions that preserve architectural integrity.
We also address secondary water issues like downspout drainage, often redirecting roof runoff into rain gardens planted with native rushes and sedges. These not only solve drainage problems but create habitat for local wildlife.
Our Process
- 01 Step 1: Topographic survey and water flow analysis
- 02 Step 2: Identification of problem areas and solutions
- 03 Step 3: Installation with minimal disruption to existing landscape
- 04 Step 4: Follow-up after heavy rains to assess performance
Benefits
- Prevent foundation damage from water intrusion
- Reduce mosquito breeding areas
- Protect existing plants from root rot
- Create opportunities for water-wise gardens
Frequently Asked Questions
How do you handle drainage in small Portland lots?
We use vertical solutions like dry wells and channel drains that maximize space. For postage-stamp yards in inner SE, we might suggest a decorative pebble trench that doubles as a design element.
Can drainage systems help with basement moisture?
Absolutely. We often combine perimeter drains with sump pumps for older Portland basements, especially in flood-prone areas like the Johnson Creek watershed.
Do you work with the city on right-of-way drainage?
Yes, we're familiar with Portland's Bureau of Environmental Services requirements and can coordinate sidewalk drain installations where needed.