
Jim Paulson Excavating Inc
demolition, driveways, excavation, grading, hauling trucking, land clearing

Retaining Walls in Oregon
Segmental block, poured concrete, timber and boulder walls built with the base, drainage and reinforcement that keep them standing.
Project guide
Retaining walls hold back soil where a grade change is too steep to slope, and they fail for one reason far more than any other: water. A wall that lasts has a compacted crushed-stone base, a perforated drain pipe at the heel, clean gravel backfill behind the wall face, and geogrid layers tied into the backfill on anything tall. Segmental concrete block is the most common residential system and can be built by a landscape contractor up to about four feet; above that, or wherever a driveway, slope or structure sits above the wall, an engineer's design is required by most codes and the wall becomes structural work. Poured concrete and reinforced masonry walls are used for tall cuts and tight sites, boulder walls for rural and natural-look projects, and pressure-treated timber for budget walls with a shorter life.
GradeLine lists 59 retaining walls contractors that serve Oregon.Compare their work and equipment, then confirm availability and service area before requesting a quote.
Listed businesses are based in Hillsboro, Lincoln City, Dallas, Coos Bay, Bend, Gladstone, though most crews travel well beyond their home city.
Segmental block walls typically cost $25 to $50 per square foot of wall face installed, poured concrete $30 to $60, timber $15 to $30 and boulder walls $20 to $40. A four foot tall, 50 foot long block wall therefore commonly runs $5,000 to $10,000, and engineered walls above that height climb quickly once geogrid, engineering and larger equipment are involved.
Ranges are national and approximate; regional labor rates, material prices and site conditions move them in both directions.
Segmental block walls typically cost $25 to $50 per square foot of wall face installed, poured concrete $30 to $60, timber $15 to $30 and boulder walls $20 to $40. A four foot tall, 50 foot long block wall therefore commonly runs $5,000 to $10,000, and engineered walls above that height climb quickly once geogrid, engineering and larger equipment are involved.
Send the height and length of the grade change, a photo of the slope, what sits above and below the wall, where water comes from, and the look you are after.
The main cost items are wall height and length, and whether a surcharge such as a driveway, pool or slope sits above it; engineering, excavation, base preparation, drainage and geogrid the design requires; block or material type, backfill stone, spoil haul-off and restoring the grade above and below. A site visit helps the crew see which ones apply.
Most building codes exempt walls under four feet measured from the bottom of the footing with no surcharge, and require a permit and stamped engineering above that. Walls near a property line, a public sidewalk or a stream can trigger additional setback, drainage and environmental review.
Directory
59 contractors found

demolition, driveways, excavation, grading, hauling trucking, land clearing

Lincoln City, ORLincoln County
demolition, driveways, erosion control, excavation, foundations, grading
20 years in business

concrete cutting removal, driveways, excavation, foundations, hauling trucking, land clearing

demolition, driveways, erosion control, excavation, foundations, grading

excavation, foundations, grading, retaining walls, site prep, trenching underground

demolition, driveways, excavation, foundations, grading, pond water management
18 years in business

Gladstone, ORClackamas County
excavation, foundations, grading, retaining walls
21 years in business

Boring, OR
demolition, excavation, foundations, pond water management, retaining walls, septic systems
31 years in business

North Plains, OR
concrete flatwork, driveways, excavation, hauling trucking, land clearing, retaining walls

demolition, erosion control, excavation, grading, hauling trucking, pond water management
26 years in business

Lincoln City, ORLincoln County
demolition, driveways, excavation, foundations, hauling trucking, retaining walls

Wilsonville, ORClackamas County
concrete cutting removal, concrete flatwork, demolition, erosion control, excavation, grading
No reviews yet

excavation, foundations, retaining walls, septic systems, trenching underground
20 years in business
No reviews yet

demolition, driveways, erosion control, excavation, foundations, grading
46 years in business
No reviews yet

Cornelius, ORWashington County
erosion control, excavation, retaining walls, site prep, trenching underground

demolition, erosion control, excavation, foundations, grading, land clearing
10 years in business

Milwaukie, OR
concrete cutting removal, demolition, driveways, excavation, grading, hauling trucking

driveways, excavation, grading, hauling trucking, pond water management, retaining walls

Lincoln City, ORLincoln County
driveways, excavation, hauling trucking, paving prep, retaining walls
40 years in business

Gaston, ORWashington County
demolition, driveways, excavation, foundations, grading, hauling trucking
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