A little more than two years ago I purchased a two-acre residential lot in the bluff country of Iowa. The price seemed quite reasonable, but the challenge presented by the lot was formidable! This particular piece of property, you see, lay crudely up a long, steep hillside. However, it did afford a marvelous view of the agricultural valley below, and of the skyline of Omaha, Nebraska, 16 miles away. My homesite was part of a newly developed subdivision comprised of 42 lots. I chose to buy a sloping, south-facing site because it offered a chance to fulfill my dream of a passive solar retirement home in scenic surroundings. I just needed to figure out two things: Where would I put a house, and how could I make that house accessible?
How Would You Like to Be Asked a Million Times, "What Are You Doing, Anyway?"
The only exit from the nearby paved street onto my lot was a small, ill-shaped area just big enough — if it were level, which it wasn't — to turn around a car. Obviously, that wouldn’t do. Since I had no money to rearrange the site's topography, I tapped a less costly resource: my brain. Countless site plan sketches and endless hours climbing up and down the hillside later, a workable solution came to me like some sort of great vision: retaining walls. I needed terraced retaining walls. The parts of a plan for the lot fell into place.
I picked up my shovel and began what turned into a two-year "labor of love." My task took almost every evening, every weekend, and a month of vacation to complete. The lot's terrain was such that I couldn't get earth-moving equipment to the spot, so I was limited to using my body and an ordinary spade, two 5-gallon plastic buckets for carrying dirt, a saw, and (over the two years) three pairs of sturdy work shoes.
"I Thought Maybe You Were Building Some Sort of Monument!"
First, I enlarged the sloping parking area adjacent to the street by leveling it off and reinforcing the southern edge, adding a 15-foot-wide band of level surface. In the beginning, that really was all I'd hoped to accomplish by myself, but once the job was so satisfactorily finished I couldn't stop. I felt that I'd just scratched the surface of what could and should be done. Again, I spent hours sitting and contemplating various possibilities, including the option of digging a basement by hand!
My original vision soon expanded to embrace the entire hillside, and I began to work even harder and more enthusiastically. The task became almost a way of life for me, as I felt I'd started something that only I could or would finish.
At the southern edge of the parking area (digging with the shovel), I terraced the slope sharply downward for 12 feet, creating an earthen courtyard on each side of the ground level of my future home. Then in the "house" space between these courtyards, I dug down 12 feet again to excavate for a walkout basement, using the dirt to make another level terrace. (As I dug, I simply pitched the earth outward to the south, expanding the level area as I worked.) The retaining wall for this courtyard rises approximately 12 feet above the beautiful, native meadow below. Later I added two other terraces in circular patterns around a pair of large oak trees at the base of my lot.
When my gigantic task was finally completed, the ugly, impossibly steep hillside had been transformed into an artful arrangement of six level areas connected by two flights of beautiful, rustic steps. It had to be one of the most unusual and strongest building sites ever terraced by hand! All that was left was the erection of a home.
"Is This an Earth Home? Are We Standing on Your Roof?"
If you've ever had the opportunity to create exciting and useful things from other peoples'. castaways, you can likely understand my feeling of accomplishment. Though my project was executed with sweat and blood, you see, I couldn't have done the job without the help of a lot of used car tires! Over the two-year period I hauled 1,580 of them, a few at a time in a car, over a distance of 16 miles and packed them in place by hand and foot.
Each tire holds approximately 25 gallons of earth, and once filled with the solidly stomped-down dirt becomes very heavy and almost impossible to move. As I placed the tires in more precarious areas, I "nailed" them to the ground with totally concealed metal rods or pipes. This resulted in staunch retaining walls which are seemingly impervious to weather conditions. In fact, the severe winter of 1981-82, followed as it was by a lengthy and heavy rainfall during the spring, caused absolutely no damage. I believe this is due in part to the drain system I built into each level, which disperses water into the meadow or timber below.
Better yet, my only expense turned out to be 17 bags of mortar mix (for building culverts) and 12 ten-foot lengths of 4" drainpipe. Everything else was free. The service station managers in my area thanked me for carting away their old tires. The metal rods were scavenged — with permission — from several building sites, and my staircases were made from old telephone poles that were delivered, again at no cost, by a local utility company. The many tons of large rocks used to form a tree well and for general landscaping were collected from the surrounding countryside and hauled to the site in my car.
My Body is Tattered and Torn, but my Heart is Reborn with Satisfaction
In exchange for an expense of time and energy, I now have a priceless setting for my future home. Additionally, the terrace tires will provide perfect planting beds for trailing ground covers, flowers, and shrubs — which will eventually spruce up the rather stark appearance of the walls. In fact, these castaways will someday become the basis for my own unique hanging gardens!
EDITOR'S NOTE: The author was so pleased with his tire terraces that he has put together an eight-page, illustrated pamphlet on how to build "Everlasting Retainer Walls" under various conditions.