Need engineering drawings for a 150 Lf seawall/bulkhead for an inland lake in Texas. Utilizing 5 ga galvenized steel panels 18" width, likely 12' length. 6ft embedded in grade with 4-5" top box cap, include tie backs and anchors every 16-20". Call off for backfill, drain and weld. I can supply lot survey, photos of the area and possibly some soil information. Wall will have a 12' opening as a boat launch in middle with wing backs. Will connect to existing neighbor wall on one side. Looking for professional drawings and install directions step by step.