GeoMega® MSE gravity retaining walls are ideal for construction in seawater and other aggressive environments.

GeoMega® is an MSE gravity retaining wall system where the soil reinforcing elements consist of high-strength extensible geosynthetic reinforcing strips (GeoStrap®) connected through a patented sleeve embedded in precast concrete facing panels.


This GeoStrap MSE wall is also similar to our renowned Reinforced Earth® retaining wall system and consists of the same concrete facing panels generally come in three types: cruciform, square, and rectangular but with a slight difference. In the back face of the GeoStrap MSE wall system panels, there are embedded patented GeoStrap® Sleeve Recesses. The panels typically have a structural thickness of 140mm, which excludes aesthetic relief. Custom panel dimensions can be manufactured if necessary based on project needs. Joints between the panels have a ship lap, as well as geotextile on the back face, to provide adequate drainage of the structure while preventing loss of backfill. A catalog of corner elements and slip joint covers allow for complex horizontal alignments.

Soil reinforcing elements

The synthetic connection is composed of a blow molded, polyolefin, omega shaped sleeve embedded in the facing panels. The 50mm wide GeoStrap® consists of high tenacity polyester fibers (HTPET) encased in a polyethylene sheath. The high tenacity polyester is the load bearing element, while the sheath protects the yarns from installation damage and degradation. Although they are considered extensible, the durability and strength characteristics of the GeoStrap® exhibit inextensible behavior for easy installation.

> GeoStrap®

Coated polyester (PET) strips without high-adherence edges, best for low pH backfill

Advantages of GeoMega® MSE gravity retaining walls

  • High-strength GeoStrap soil reinforcements exhibit less extensibility than typical geogrids
  • GeoStrap soil reinforcements and the patented connection are suitable for highly aggressive environments and corrosive soil conditions
  • GeoStrap connection to precast facing panels is simple, quick, and requires no tools
  • Similar shared benefits of Reinforced Earth® MSE walls


Rapid construction

Rapid construction

GeoMega™ structures are quick to install. Materials can be delivered to site just in time for construction. A crew of four can install up to 90 square metres of wall per shift, including backfill placement and compaction.



The internal strength and overall stability of the GeoMega™ composite structure provides significant static and dynamic load-bearing capacity. The durability of the materials and their resistance to extreme situations, such as seismic events, extreme variations in temperatures, and explosions, is well documented and the safety of our structures unrivalled.



GeoMega™ MSE retaining walls are ideal for construction in seawater and other aggressive environments.