He Replaced a Failing Timber Retaining Wall and Rebuilt the Entire Slope With Block
Parts of this retaining wall had deteriorated so badly they could be moved by hand. Hidden behind the weathered railroad ties was a large slope that had been relying on aging timbers for support.
Imgur user Hirshfields began removing the old wall one section at a time, but the project quickly expanded into a full-scale excavation. Buried timbers, tons of soil, drainage stone, retaining wall blocks, and a new staircase transformed the area beside the house into a series of structured terraces.
Months later, little remained of the original wall. In its place stood a new retaining system that reshaped both the slope and the backyard around it.
Rotten Railroad Ties Had Reached the End of Their Life
Weathered railroad ties showed signs of severe deterioration, with sections bowing, splitting, and shifting under the weight of the soil behind them. Moss, plants, and years of moisture exposure had accelerated the damage.
According to the builder, portions of the wall could be moved by hand, making replacement necessary before a larger failure occurred.
Excavation Started Along the Entire Length of the Wall
Removing the old structure exposed just how much material had to come out before construction could begin. A compact excavator helped remove buried timbers that could no longer be extracted with hand tools.
Long trenches formed beside the house as the project expanded beyond a simple wall replacement.
Decades of Material Came Out of the Ground
Large piles of soil, landscaping fabric, roots, and decomposing timbers accumulated during demolition.
Removing everything down to stable ground created a clean starting point for the new retaining system.
Soil Removal Revealed the Full Scale of the Project
Excavation continued along the entire slope, exposing a long section of earth that would eventually support the new wall.
Several feet of elevation change between the upper lawn and lower yard became visible once the retaining structure disappeared.
Old Timbers Filled an Entire Disposal Pile
Stacked railroad ties revealed how much material had been holding the slope in place.
Many of the timbers showed heavy weathering and decay, explaining why replacement had become necessary.
Deep Foundation Trench Followed the Curve of the Yard
After demolition, the crew excavated a consistent trench for the new retaining wall base.
The trench followed the natural curve of the landscape while creating a level foundation for the block system.
Crushed Stone Created the Base Layer
Compacted gravel foundation was installed before any wall blocks were placed.
This layer helps distribute loads evenly and provides drainage beneath the retaining wall.
First Courses Established the Shape of the Wall
Large retaining wall blocks were positioned carefully on the prepared base and checked for alignment.
Every course depended on the accuracy of this first row.
Curves and Straight Runs Started Taking Shape
Additional blocks extended the wall while maintaining the curved layout around the corner of the yard.
Open block cores were filled with stone to improve stability and drainage.
Stair Openings Were Integrated Into the Design
Instead of creating a single uninterrupted wall, the design included a central staircase connecting the two lawn levels.
The opening broke up the mass of the retaining wall and improved access across the backyard.
Elevated Planting Areas Emerged Behind the Walls
As block courses increased in height, the project began resembling a series of raised terraces.
Retained soil created level planting and lawn areas above the lower yard.
Curved Corners Softened the Structure
Rounded wall sections prevented the installation from looking overly rigid.
The curves also followed the natural shape of the excavation rather than forcing sharp angles into the landscape.
Retaining Walls Began Defining the Backyard Layout
Once the walls reached near-finished height, the backyard started taking on a more organized appearance.
Different elevations became distinct outdoor zones instead of one continuous slope.
Capstones Finished the Main Wall Structure
Top caps gave the retaining walls a finished appearance while helping lock the upper course into place.
Broad caps also created comfortable seating-height edges around portions of the landscape.
Matching Curves Connected Both Sides
The finished walls mirrored one another across the stair opening.
Symmetry helped the structure appear intentional rather than purely functional.
Wide Steps Connected Upper and Lower Levels
Generous stair treads created a comfortable transition between elevations.
Retaining blocks on both sides formed integrated stair walls that matched the main structure.
Grass Returned Around the New Construction
As the project settled and landscaping recovered, the retaining walls blended more naturally into the backyard.
The structure became part of the overall landscape rather than standing out as new construction.
Stone Backfill Protected the Foundation Wall
A separate retaining section beside the house created a clean planting and drainage zone filled with decorative stone.
The installation improved both appearance and water management near the foundation.
From Failing Timbers to Engineered Retaining Walls
Replacing the old railroad-tie wall required excavation, grading, drainage preparation, hundreds of retaining wall blocks, and new stairs, but the result completely changed the way the sloped yard functions.
The finished project created stable retaining walls, level planting areas, improved access between elevations, and a cleaner appearance that should last far longer than the original timber structure.
Would you rather rebuild a failing retaining wall yourself or hire a contractor for a project this size?
All image credits go to Imgur user: Hirshfields.