Footings & Retaining Walls Form and pour footings & retaining walls. Drill & epoxy dowels into existing. Install post Base Hardware. 5.2.0 Slabs Form and pour basement & light well slabs. Install crushed gravel, vapor barrier. 5.3.0 Water Proofing & Drainage Install water proof membrane on light well retraining walls. Install basin drain , tie into existing drain. 5.4.0 Saw Cutting Saw cut existing footing for new window opening. 5.5.0 Anchor Bolt Retro Fit Drill & epoxy anchors bolts into exiting footings.