1-3319_Rev._4.pdf

This technical drawing depicts an Extra Heavy Steel Tube Foundation design by Western Towers, located in Texas, for telecommunications tower infrastructure. The document is a detailed engineering specification for a foundational structure designed for 60', 40', and 20' tower installations, specifically for Metrolink and tilt towers. The drawing provides comprehensive technical details including elevation and top view perspectives, with precise measurements for steel tube dimensions, bolt configurations, and mounting specifications.

The foundation is engineered to withstand significant wind loads, specifically rated for 100 MPH sustained winds and 130 MPH 3-second wind gusts. Key technical specifications include a 24" diameter tube with 1/4" wall thickness, 28" diameter base tube, and a 6" x 6" square cut-out on the opposite side of the tube. The design incorporates four 1 5/8" holes for tower mounting, with bolts connecting the tower to the foundation specified as 1 1/2" x 18° A325. The foundation is intended to use galvanized components and is designed for compacted back-fill with special attention to cohesion and ultimate strength requirements.