Holding Detroit Slopes with Poured Concrete Retaining Walls
When a yard drops off sharply or a driveway sits above a cut, a poured concrete retaining wall anchors the grade change. Detroit Concrete designs each wall to the slope height and soil, sets the footing below the frost line so winter heave won't lift it, installs drainage behind the wall to prevent water pressure from building, and pours a single continuous face that reads clean and stays plumb. Start with a free written estimate.
Three things break retaining walls: undersized design that can't handle the load, water trapped behind the wall that multiplies the pressure, and a footing that sits above the frost line and heaves in winter. A poured concrete wall built to spec avoids all three because the engineer sizes it right, the drainage system routes water away, and the footing goes deep enough to stay put.
Poured walls excel for tall grade changes, long continuous runs, and situations where a driveway or structure sits above the wall. The single monolithic face also reads better architecturally than stacked block coursing. For modest height changes on a tight budget, a block retaining wall can make sense; we assess your site and recommend the right choice.
Poured walls often pair with basement waterproofing when the wall retains a walkout cut, or with front entry stairs where the stair and wall work together to manage the slope.
Recent work
The sequence
How Poured Retaining Walls Get Built in Detroit
Engineer the wall to load
An engineer designs the wall to the slope height, soil type, surcharge load (anything sitting above it), and freeze-thaw cycle, sizing the footing, wall thickness and reinforcement to the project.
Dig footing below frost
The wall footing is excavated below the frost line, formed and poured first with the engineered dimensions and reinforcement, so the wall sits on a base that will not lift in winter.
Form, reinforce, pour wall
The wall is formed straight and true, reinforcement tied through the full height with proper laps and the keyway to the footing, and the wall is poured and consolidated in one continuous lift where possible.
Drain behind, backfill
Drainage stone is placed against the back of the wall, a drainage pipe collects water at the footing and routes it to daylight or the property drainage, then the cut is backfilled to grade with confirmed drainage path intact.
The hidden failure point
Why Drainage Stops Wall Failure Before It Starts
Water pressure behind a retaining wall is the silent killer. Soil that weighs one ton per cubic yard can exert the pressure of five tons when saturated and trapped. A wall engineered for dry soil will fail under that load. Drainage prevents the pressure from building in the first place, which is why every retaining wall we build starts with a drainage conversation, not a concrete conversation.
Our standard is drainage stone against the back face and a perforated pipe at the footing tied to daylight or the property storm system. This costs a small percentage more than skipping it and saves the wall's entire lifespan. The same principle applies across all residential concrete work where water management matters.
Engineering, drainage, footings below frost and when poured beats block for residential walls.
For most residential poured walls over a couple of feet tall, yes. Engineering sizes the footing, wall thickness, reinforcement and drainage to the load and soil. The cost of design is small compared to the cost of a wall that fails. We work from engineered drawings on every project.
Poured is best for taller walls, longer continuous walls, structural loads above the wall, and a single clean face. Block is best for shorter walls, less structural load and a more economical install. We will recommend based on your project.
Critical. Most failed retaining walls failed from trapped water pressure, not from undersized concrete. Drainage stone against the back and a drainage pipe at the footing routed to daylight are what keep the wall standing for the long run.
Below the frost line, which is typically several feet in Detroit. The engineer confirms the exact depth based on the soil and load; the wall footing will go deeper than your eye says it needs to, and that depth is what stops winter heave.
A few weeks for a typical residential wall, including engineering, excavation, footing pour with cure, wall pour with cure, drainage install and backfill. The full schedule is in the written quote so you can plan around it.
Homeowner reviews
What Detroit Homeowners Say About Their Poured Retaining Walls
Engineered, drained, footing below frost. Wall is plumb to within a fraction, drainage is dry behind it. Worth doing once and properly; the yard finally makes sense.
Q. F.
Detroit
★★★★★
Holding back the cut for our walkout basement and the driveway above it. Single continuous face, no joint pattern to weather. Looks like part of the architecture.
X. W.
Warren
★★★★★
Drainage was their first conversation, not the concrete. Got the why right; the wall is dry behind, stable in front, and stayed that way through spring melt.
Z. W.
Ann Arbor
★★★★★
Engineer worked directly with the crew. Calcs to drawings to pour, nothing got fudged. The wall is bombproof and the budget held to the dollar.
Y. W.
Sterling Heights
From the blog
Concrete Guides & Articles
Practical reading on planning, finishes and caring for concrete in Detroit.
