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foot, and lowering the bottom by 20 feet. This project from start to finish can be seen in the <br />progressive photos below. <br />The time has come to rehabilitate the City's reservoirs with 21st century design standards and <br />to comply with today's structural design codes that continue to evolve, typically after the most <br />recent devastating earthquake (Northridge, 1994). How this project turns out will depend on how <br />we make the key decisions together. <br />Resolving these issues in a timely and cost-effective way is the "BRADY sweet spot". We always <br />search for the easiest solutions to a problem and follow the path of least resistance. <br />Where Reservoir Projects Go Wrong? — the BRADY Focus <br />1. Any potential environmental issues are not resolved in advance. Keeping promises is critical. <br />2. Hydraulics. Reservoirs and associated pump stations are actually attempts to solve a hydraulic <br />problem — how to deliver water in the desired quantity and pressure, all of the time. <br />3. Overflow events. The amount of water released in an overflow can be significant, and <br />substantial downstream damage can occur to private properties unless this hydraulic issue is <br />thoroughly understood. <br />4. Confined spaces/safety. As noted previously, it is always important to consider the safety <br />of Operations and Maintenance (O&M) staff during the design. It is our desire to minimize <br />confined spaces at all times, but when unavoidable, to provide superior means of ingress <br />and egress such as internal and external stairs to provide the best design for those tasked <br />with 0&M of a facility. The existing reservoirs are actually very large confined spaces, any <br />improvements we can make to improve access and safety is worth the exercise. <br />5. A study of "unintended consequences" should be a part of the early planning process. Takine <br />facilities even partially out of service that currently perform an essential daily water supply <br />function is never as easy as it sounds. We know from our long history working on very similar <br />projects, it is imperative to "keep the water flowing". We know that every activity requires the <br />development of a detailed sequence of events to show how the work will be performed in the <br />most expeditious method possible, with the most important component — the contingency <br />plan — in the event assumptions do not turn out as planned. <br />6. We strongly believe that the City's existing reservoirs are ideal candidates for complete <br />rehabilitation, at a cost considerably less than constructing a new tank. BRADY has completed <br />many "tank within a tank" projects, most notably the 21.5 MG Overmyer Reservoir for the <br />City of Huntington Beach. The reservoir roof was removed, columns were reinforced, a new <br />wall and floor were placed on the inside of the existing reservoir to act as "form work". We <br />replaced the roof and returned 21.5 MG to service at a cost of $6.6M, which was a staggering <br />savings to the City. Most recently, in a design/build sole source contract for Vista Irrigation <br />District, we rehabilitated a 5.0 MG reservoir that was built in 1961. We completed the project <br />at Y2 the cost of a new tank, in %: of the time. Photos of other "before" and "after" photos are <br />shown on the following page. <br />RICHARD BRADY &ASSOCIATES, INC. 9 <br />