UC Davis is seeking several safety improvements to the Dairy Road Utility Water to allow utilities personnel access to conduct maintenance activities. Two inspection reports in 2008 and 2016 noted safety deficiencies that require attention (see Appendix 1). UC Davis seeks a vendor to address the below safety improvements on the water tower: • Replace existing access ladder with a ladder that meets current Cal/OSHA regulations as well as ANSI A14.3-2008 and Incorporated by Reference standards for: rung spacing, rung diameter, rail dimensions and proximity to the ground. • The current ladder safety system (LSS) mounted to the primary access ladder is the Miller Saf-T-Climb notched tubular rail. Replace Saf-T-Climb with a cable based system compatible with a with full body harness to match existing campus tower climb system (3M™ DBI-SALA® Lad-Saf™ Cable Vertical Safety System). • Install a safety gate at top of a 150-foot ladder to protect the ladder opening on the deck. • The roof access ladder is arched- starting in a vertical orientation and ending in a nearly horizontal angle. This arrangement is no longer allowed by AWWA D100-11 5.4.2.5. Replace with a vertical ladder equipped with a ladder cage that transitions to a horizontal catwalk equipped with a compliant guardrail. Where access to hatches is required, sections of guardrail can be replaced with spring loaded safety gate(s) and a 5,000-pound rated anchor point. This ladder arrangement will allow safe access to the roof without a Ladder Safety System. Alternatively, install a compliant Ladder Safety System.
