excavation plan for a stage-1 cofferdam foundation, focusing on the intake weir and trash rack area. we’ve mapped out the elevations here, ranging from EL.+444.50 up to +456.00 meters. includes details for sheet pile installation, penstock pipe alignment, and the gated/ungated sections. scale is set at 1:400. you’ll find layers for excavation boundaries, gabion structures, and some geological data.everything’s in meters and quiet thorough for the initial phase…