This is the last of three stories on terracing hillsides. To read the first two stories, "Slippery slopes" and "Know your hillside," go to sfgate.com and type in Deborah K. Rich. "Almost all ...
Humans have been building retaining walls for thousands of years to create flat, or gently sloping, terraces on hillsides. A lot of my readers have them on their own property — or need to build one — ...
Ground with a steep pitch or slope can become a problem area if it is often eroded by runoff water from heavy rains. One way to contain the erosion is by leveling the slope with a terrace, then ...
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