Clarifier Railings (Primary Clarifier Tanks 5 – 10)

This contract concerns the removal of an existing guard‑rail system and the installation of new aluminum pipe railings, removable 4‑ft guard‑rail sections, and associated davit hardware on primary clarifier tanks 5‑10 at the RRWRD treatment plant in Rockford, Illinois. The work includes demolition, disposal, material supply, and field installation with strict OSHA, corrosion‑control, and finish‑quality requirements. The scope is quantified at roughly 1,079 LF of existing rail removal, 3,809 LF of new 1½‑in. aluminum rail, 60 removable sections, 12 davits, and 60 brackets. The project must be completed by 30 Nov 2018, with liquidated damages of $300 per day for late completion. • Removal and disposal of ~1,079 LF of existing galvanized/ aluminum guard‑rail. • Supply and install ~3,800 LF of 1½‑in. aluminum pipe railing with 4‑in. toe plates, spaced ≤5 ft O.C. • Provide 60 removable 4‑ft guard‑rail sections, 12 Best‑Hoist Pro‑3 HD davits, and 60 receiver brackets. • All metal components must be 6061‑T6 aluminum, 304 stainless‑steel fasteners, zinc‑chromate coated where contacting concrete, and clear‑satin anodized.