Specifications include, but are not limited to: Phase 2A consists of channel construction, energy dissipation & access features, maintenance road construction, installation of fencing and lowering of existing agricultural waterlines. Channel construction will included 244,000 CY of earthwork to be excavated and stored within the designated deposition area1 , with top soil stripped and stockpiled to cap deposition area1 at the end of earthwork activity, approximately 15,000 CY of excavation off site to waste2 , and 34,600 CY of excavation to embankment to construct channel. Energy dissipation & access features will include 5,342 CY of soil cement and 1200 CY of wire enclosed rip rap to construct (4) 5’ tall soil cement drop structure consisting of 1’ stair stepped lifts, and soil cement maintenance ramps on each side of the channel for every section in between drops. Additional energy dissipation will be constructed with a rip rap erosion dissipation pad at the entrance to Isaacks Lake. Maintenance road construction will consist of 15,500 SY of 4” base course in 12’ width along both sides of the channel. Installation of fencing will include installation of 9,450 LF of new 4 strand wire fencing along both sides of the channel. 720 LF of existing 1 ¼” black poly agricultural water lines will need to be lowered underneath channel bottom and encased within a 4” HDPE Gas line sleeve and connected to existing lines on either end of the channel. ; Phase 2B consists of channel construction, energy dissipation & access features, maintenance road construction, installation & removal of fencing and utility lowering. Channel construction will included 234,000 CY of earthwork to be excavated and stored within the designated deposition area1 , with top soil stripped and stockpiled to cap deposition area1 at the end of earthwork activity, approximately 15,000 CY of excavation off site to waste2 , and 40,000 CY of excavation to embankment to construct channel. Energy dissipation & access features will include 6,150 CY of soil cement and 440 CY of wire enclosed rip rap to construct (5) 6’ tall soil cement drop structure consisting of 1’ stair stepped lifts, and soil cement maintenance ramps on each side of the channel for every section in between drops. Maintenance road construction will consist of 15,500 SY of 4” base course in 12’ width along both sides of the channel. Installation of fencing will include removal of 2,315 LF of existing fence and installation of 11,500 LF of new 4 strand wire fencing along both sides of the channel. 520 LF of existing 12” PVC water lines will need to be lowered underneath channel bottom and replaced with 12” ductile iron water line and installed with appropriate fittings.
