Concrete Retaining Walls in Ankeny, Iowa — Rebar-Reinforced Walls That Hold When Wet Clay Pushes Back
Steel-tied footings below frost, free-draining gravel backfill, and drain tile, poured by one in-house Ankeny crew.
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Concrete Retaining Walls in Ankeny, Iowa, Engineered for Expansive Clay and Frost
The trouble with an Ankeny slope is usually the clay under it, not the slope itself. The metro sits on the Des Moines Lobe glacial till, dense clay that swells when it is wet and shrinks when it dries. In a soaking spring that swelling drives hard sideways against anything buried in it, and a wall that is not built for the movement gets pushed off its line. Height is the easy part; the lateral load from saturated clay is the real engineering problem.
That sideways push is what a retaining wall is actually fighting. We pour walls as one rebar-reinforced piece, so the load travels down into the footing instead of cracking the wall along a weak course.
Need foundation repair or basement waterproofing in Ankeny instead? Visit the Ankeny foundation & waterproofing hub.
Concrete Retaining Walls JLB Pours in Ankeny
Structural concrete retaining walls — footings below the frost line, rebar reinforcement, and full drainage with weep holes and gravel backfill.
How the steel carries the load
Rebar ties the footing and stem into one structure.
Vertical bars run up from the footing into the wall and horizontal bars run along its length, so the whole wall resists the clay's push together rather than as separate sections. That continuity is what lets a poured wall hold taller grade than dry-stacked units ever could on this ground.
The footing goes below the 42-inch frost line.
We dig past that depth onto bearing soil so freeze-thaw cannot lift one end of the wall while the ground heaves above it. On Ankeny's moisture-sensitive clay, that depth is non-negotiable.
Base prep on fresh subdivision ground
Ankeny grew fast, and the grading came with it.
The build-out around the Prairie Trail district went up on former cropland that was cut and filled for the lots, and a wall on loose fill settles unevenly. We compact and prep the base before any concrete is placed so the wall bears the same along its whole length.
The right backfill matters as much as the right base.
We place free-draining gravel against the wall instead of repacking the excavated clay, so water moves to the drain tile rather than sitting against the concrete. On swelling clay, that one choice does more for the wall's life than anything else.
Walls that earn their keep on a walkout lot
Newer Ankeny homes lean on grade changes.
Walkout basements, terraced yards, and driveway cuts all need a wall to hold the difference, and those are exactly the lots that fail when drainage is skipped. We size each wall to the grade it holds and route the water away from the house.
One JLB crew runs the whole job.
Excavation, footing, stem, drainage, and backfill in lifts, no subcontractor handoffs. The free site walk tells you what the wall needs before any work starts.
A rebar grid set in the footing trench before the pour, ready to tie the stem into one structure on Ankeny clay.
Two Ways to Pay Over Time
12 Months Same As Cash
Pay the full balance within 12 months and you pay no interest.
5 Years at 6.99% APR
A lower monthly payment, spread over 60 months.
On approved credit. Ask for full terms at your free estimate.
No need to put the project off another season.
How JLB Handles Retaining Walls in Ankeny
Free On-Site Inspection
We measure the area, check how it drains, and assess the base before quoting.
Tear-Out & Haul-Off
The old driveway comes out and we remove the debris so we start on solid ground.
Subgrade Prep
We compact and grade the base so the slab bears evenly over central-Iowa soil.
Forming & Reinforcement
Forms are set to grade and we add rebar or mesh where the load calls for it.
Air-Entrained Pour
We place a 5-7% air-entrained mix built for Iowa freeze-thaw.
Finish & Saw-Cut Joints
Broom or decorative finish, then control joints cut at planned intervals.
Cure & Protect
We protect the pour while it cures so it gains full strength without scaling.
Two Ways to Pay for It
12 Months Same As Cash
Pay the full balance within 12 months and you pay no interest.
Best if you can pay it off within a year.
5 Years at 6.99% APR
A lower monthly payment, spread over 60 months.
Best for bigger projects.
On approved credit. Ask for full terms at your free estimate.
No need to put the project off another season.
Concrete Retaining Walls in Ankeny — FAQ
Des Moines Lobe till is dense clay that swells when wet and pushes hard sideways against a buried wall. A retaining wall in Ankeny has to be reinforced for that lateral load, not just the height it holds.
Vertical and horizontal steel tie the footing and stem into one piece, so the clay's push travels down into the footing instead of cracking the wall. That continuity lets a poured wall hold taller grade than stacked block.
No. Repacked clay traps water against the wall. JLB places free-draining gravel instead so water reaches the drain tile, which is the single biggest factor in how long a wall survives on Ankeny's swelling soil.
It can if the base is loose fill from grading former farmland. JLB compacts and preps the base before pouring so the wall bears evenly along its full length and does not crack over a soft spot.
Below central Iowa's 42-inch frost line, onto bearing soil. That keeps freeze-thaw from lifting one end of the wall while the ground heaves above the footing.
Get Your Free Retaining Walls Estimate in Ankeny
Fill out the form and the JLB team will reach out within 24 hours. Or call us now at (515) 717-8560.
Retaining Walls Near You
Our Central Iowa Offices
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JLB Basement Waterproofing & Foundation Repair — Des Moines
97 Indiana Ave Suite #1Des Moines, IA, 50314(515) 717-8560 View on Google Maps
Ready to Pour? Get a Free Estimate.
A free on-site estimate tells you exactly what your retaining walls project takes — and what it costs. Call (515) 717-8560.