"James and his crew did a great job with my retaining wall project! The final wood walls came out perfect. I'm very satisfied with my new retaining walls, which look beautiful."
Read the entire review by Kelsey Ericks in Moraga, CA

Quality Retaining Walls: Expertly Navigating Moraga's Unique Soil Conditions

Building Durable Retaining Walls in Moraga's Complex Geological Landscape

At Quality Retaining Walls, we understand the unique soil conditions in Moraga, CA, which is crucial for our retaining wall service. Moraga is in the East Bay Hills, part of the Coast Ranges geomorphic province. This area has a diverse geological history featuring a mix of igneous, metamorphic, and sedimentary rocks. As experienced retaining wall contractors, we know that this influences the stability and suitability of the soil for retaining walls.

The site-specific geology primarily consists of the Orinda Formation and the Moraga Volcanics. As a professional retaining wall contractor, we consider the presence of several inactive faults in our retaining wall designs, which have resulted from compression during the uplift of the East Bay Hills block.

Landslides are a significant geotechnical consideration in Moraga. Various landslides, including debris flows, earth flows, and deep-seated landslides, are common due to heavy rains and soil saturation. We design our retaining walls at Quality Retaining Walls to account for these potential soil movements.

The ground surface is typically covered with 1 to 5 feet of residual soil from the underlying bedrock and alluvium weathering. As retaining wall contractors, we also deal with colluvium deposits, soil that has moved downslope and deposited in certain areas. Alluvial/colluvial fan deposits are also formed by debris and stream flows.

The bedrock at the site includes the Orinda Formation and Moraga Formation, which consist of various types of stone. As a retaining wall service, understanding the bedrock formations helps us ensure the stability and longevity of our retaining walls.

Good news! Moraga is not situated in a California Earthquake Fault Zone. No active faults are known to pass through the Lamorinda Hills. This is an important consideration for us as retaining wall contractors, as seismic activity can impact the stability of retaining walls.

At Quality Retaining Walls, we leverage our understanding of the complex soil conditions in Moraga to provide a top-notch retaining wall service. Our retaining walls are designed to account for the area's geological history, various soil and rock types, landslide potential, and seismic activity, ensuring the best results for our clients.