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Concrete Retaining Wall Cost Calculator
Poured concrete is the strongest common retaining wall and the least forgiving to build. This calculator works out your concrete volume, sizes the footing, and tells you whether you are about to pay a short-load penalty.
Why your estimate is what it is
What drives concrete retaining walls costs in Escondido
Cast-in-place concrete runs $55 to $126 per square foot of face installed in North San Diego County. It is the right answer above about six feet, wherever a slim wall matters, and wherever the wall is carrying a real load — but below three feet block is almost always cheaper for the same result.
Two things drive the price that people do not expect. The first is formwork: building it, bracing it against the pressure of wet concrete, stripping it and patching. On a straight run the panels get reused; on a curve the forms are built once and thrown away. The second is delivery. Ready-mix runs $155 to $215 a cubic yard delivered in coastal San Diego, and most residential wall pours are three to eight yards — under the ten-yard truck minimum, which adds a short-load penalty of $30 to $60 a yard.
Concrete and steel
Ready-mix delivered, with coastal metro markets running 10–30% above national rates. Rebar adds $1.50 to $2.50 per square foot of wall. Short loads under ten yards carry a penalty of $30–$60 per yard.
Formwork
Forms are built, braced, stripped and patched. A straight run reuses panels; a curve needs custom formwork built once and used once, which is why curved concrete costs 12–28% more.
Footing size
A cantilever footing is roughly 50–70% of wall height in width and 1.5 to 2.5 feet deep. Double the wall height and you roughly quadruple the footing concrete — the main reason cost scales faster than height.
Structural design
Gravity walls resist by mass and suit low walls. Cantilever is the residential default from four to ten feet, using the weight of backfill on the heel. Counterfort walls add buttresses and are rare in residential work.
Pumping
If the mixer truck cannot reach the forms you need a pump — $700 to $1,800 a day for a line pump, $1,300 to $3,500 for a boom, both with three to four hour minimums.
Face finish
As-stripped shows form marks and tie holes. Sacking and patching is cheap. Board-form, stamped texture, stucco and stone veneer each add a separate trade on top of the structural wall.
What could push your price higher
- A small pour. Under ten cubic yards you pay a short-load penalty, and the fixed costs of forming and delivery are spread over very little wall.
- Curves, which mean custom formwork with no reuse.
- No truck access to the forms, which forces a pump with a three to four hour minimum.
- Expansive clay, which needs a deeper and wider footing than the same wall on sand.
- A board-form or stone veneer finish, which is a second trade on top of a finished structural wall.
- Height above six feet, where engineering is effectively mandatory and the footing grows quickly.
What could bring it down
- Choosing block instead, below about five feet. For a plain grade-separation wall the result is the same and the cost is materially lower.
- A straight run, so formwork panels get reused across the whole wall.
- Getting the pour over the ten-yard truck minimum, or combining it with other concrete work on the same day.
- An as-stripped or sacked finish rather than board-form or veneer.
- Truck access to the forms, avoiding the pump entirely.
- Pouring the footing and the stem in a sequence the crew can do without waiting on inspections between them.
Turn the estimate into a real number
This calculator works from published 2026 cost data for San Diego County. It cannot see your soil, what is behind the wall, or how a machine would reach the work — and those are exactly the things that decide a real price. We will come out, measure, and give you a written scope with no pressure attached.
Book a free site visitFrequently asked questions
How much does a poured concrete retaining wall cost?
In San Diego County, roughly $55 to $126 per square foot of wall face installed, before any face finish. For a 30-foot wall with four feet showing, that is around $15,000 to $22,000 all-in including permit, overhead and contingency. Small walls price badly against block; tall walls price well.
How much concrete does a retaining wall need?
It depends on both the stem and the footing. A 30-foot wall four feet tall with an eight-inch stem and a 1.5-foot deep footing takes roughly ten cubic yards in total, of which more than half is footing. The calculator above works this out for your dimensions.
What is the difference between a gravity and a cantilever wall?
A gravity wall resists the soil by its own mass — thick, simple, and economic only at low heights. A cantilever wall has a thin stem sitting on an L or T shaped footing, and it is held in place by the weight of the backfill sitting on the heel of that footing. Cantilever is the residential default from about four to ten feet, because it uses far less concrete for the same retained height.
Do I need a pump for my concrete wall?
Only if the mixer truck cannot discharge straight into the forms off its chute. A line pump handles most residential situations at $700 to $1,800 a day; a boom pump is for long or elevated reaches at $1,300 to $3,500. Both carry three to four hour minimums, so a pump hurts a small pour much more than a large one.
Does a concrete retaining wall need drainage?
Yes, and more than people expect. A poured wall is impermeable, so every drop of water that reaches the back of it stays there unless there is somewhere for it to go. Free-draining gravel, a perforated pipe and a discharge point are not optional extras — hydrostatic pressure is what breaks concrete walls.
How long does a poured concrete retaining wall last?
Properly designed and drained, well over fifty years. Concrete has the longest service life of the common retaining wall materials, which is why it is often the right answer for a wall that would be expensive or disruptive to rebuild later.
Related calculators
Planning the whole project? Start at the Escondido retaining wall cost calculator hub, or read more about our Concrete Retaining Wall Installation service.