Rip RapRip rap is one of our most popular products here at Pima Stone. Also known as riprap, shot rock, and rock armor, this material is landscape rocks that are placed at strategic locations for functional purposes. Specifically, they guard against erosion control. The placement of these rocks is an effective and aesthetically pleasing way to protect manmade structures and natural slopes alike.
Why Rip Rap Is Important in Desert ClimatesPrimarily, rip rap stones are used along shorelines,pilings, bridge abutments, and similar areas. In other words, these rocks are typically placed where land meets water. Because of this, you might be wondering why rip rap is so important for desert landscapes like those in Arizona. However, one only needs to live through a monsoon season in Tucson to understand why erosion control is crucial in the desert.
Each monsoon season, sudden downpours give rise to flash floods, which easily wash away large volumes of soil. The end result is a bare landscape with plants that struggle to grow in nutrient-poor soil. In fact, the long-term consequences of desert soil erosion are significant, including the following:
- Loss and devaluing of real property
- Depletion of ground water
- Loss of trees and other plant life
- Sediment deposition in less than ideal areas
- Loss of wildlife habitat and biodiversity
Where to Use Rocks for Erosion ControlTypically, property owners place these rocks at strategic locations in a landscape to guard against erosion. In particular, property owners like to install rip rap on slopes for better structural support. You can also use this landscape rock along streambanks, storm drains, culvert inlets and outlets, and near bridges. In desert landscapes in particular, it’s helpful to build storm drain channels, or arroyos, using these rocks.
How Much Rip Rap Do I Need?Each load of rip rap you purchase will feature rocks within a certain size range. For example, our rocks are available in these size ranges:
- Gray: 4-8 inches
- River rock: 2-4 inches and 4-8 inches
- Coronado brown: 2-5 inches, 4-8 inches, and 6-13 inches
- 1-3 inch rocks: 90 square feet
- 2-4 inch rocks: 70 square feet
- 4-10 inch rocks: 30 square feet