6459 State Highway 23
Oneonta, NY 13820
607-432-6641 • Fax 607-433-6284
65 State Route 369
Port Crane, NY 13833
607-648-7051 • Fax 607-648-7050
Oneonta Block Company


Landmark Specs .pdf

Installation .pdf

Available by Special Order ONLY

Download Retaining Wall Brochure

Download our Retaining
Wall Brochure (pdf)

The Landmark retaining wall system represents a breakthrough in retaining wall technology. This system was developed specifically to meet the high standards set by the transportation industry and is the culmination of years of research and testing to develop a modular block, mechanically stabilized earth (MSE) structure for high performance under extreme loading conditions.

The Landmark system comprises uniquely shaped modular concrete blocks, standard geosynthetic reinforcement materials (grids and fabrics) and the Zero Normal Load (ZNL)™ connection technology.