Securing Challenging Terrain
Building on steep slopes or in landslide-prone areas requires engineered precision. ADEI designs and installs slope stabilization systems that prevent soil erosion and structural failure.
Custom Solutions
- Soil Nail Walls: A cost-effective solution for over-steepened slopes. We drill horizontally into the slope, grout reinforcing steel into place, and apply a shotcrete facing, which can also be finished with a decorative, sculpted surface to blend into the surrounding environment.
- Soldier Pile Walls: Utilizes steel beams and lagging, often anchored with tiebacks, to hold back massive earth loads.
- Shotcrete Retaining Walls: Permanent structural walls formed with shotcrete, which can be sculpted and finished decoratively to achieve both structural performance and an aesthetic that integrates with the natural surroundings.
- Shear Pins with Grade Beams and Tiebacks: Reinforcement systems designed to stabilize slopes and resist lateral movement.
Limited Access Expertise
Many failing slopes are difficult to reach. We utilize portable drilling equipment and limited-access rigs to perform repairs in backyards, tight urban lots, and rugged hillsides where standard equipment cannot go.
Slope Stability Resources
Practical guides for hillside and slope property owners: what affects slope stability, the warning signs to watch for, and how engineered solutions keep slopes in place.
El Niño and Southern California: What Heavy Rain Can Mean for Slopes and Hillsides
As Southern California heads into the 2026-27 rainy season, El Niño is once again becoming an important consideration for property owners, developers, general contractors and project teams working on or near sloped terrain.
Signs of Slope Instability After Heavy Rain
In Southern California, this deserves particular attention because periods of prolonged rain can saturate the ground, while intense rainfall can contribute to erosion, shallow landslides and other forms of slope movement.
Coastal Bluff and Seawall Repair in Southern California: Why Bluffs Fail and How They Are Repaired
Coastal bluffs and seawalls in Southern California are under steady pressure from the ocean, and the 2026-27 winter is a good reason for owners, developers, general contractors and engineers to look closely at the top, face and toe of the bluff.
