Abstract: A modular retaining wall system 100 comprises a reinforcement frame structure 700 supporting a retaining member 105, buttress 300, impact pad 500 and foot component 400. The buttress may contain a trumpet pipe 750 attached to a faceplate 755. The trumpet pipe and faceplate may be used to secure a post tension cable within the retaining wall system. The trumpet pipe may also retain accessory components such as guard rail supports. The modular retaining walls may be placed side by side and secured together by use of a pin and rod system. A second tier embodiment 200 may be secured to the top of the first embodiment 100. The impact pad 500 faces toward the hillside and protects the system from falling rocks and debris allowing for the use of native soil for backfill.