DWU Elevated Storage Tank Design Standards September 2013 3 PREFACE ACKNOWLEDGMENTS: This manual is the first edition design manual outlining the minimum design criteria for elevated storage tanks and ground storage tanks for use within the Dallas Water Utilities distribution and transmission network. Principal Editors:

Elevated water tanks are critical components of any urban planning scheme as they are commonly adopted by the municipal corporations to store the necessary water to meet the city's water demand. Experiences from past earthquakes have shown a strong indication that most of these structures are susceptible to damages related to earthquakes.

This manual is the first edition design manual outlining the minimum design criteria for elevated storage tanks and ground storage tanks for use within the Dallas Water Utilities distribution and transmission network. Any questions or suggestions regarding to this manual should be forwarded to Engineering Services, Dallas Water Utilities.

Elevated water storage tanks are used to store water for fire protection and potable drinking water within a designated area or community. Elevated tanks allow the natural force of gravity to produce consistent water pressure throughout the system.

At the Forefront of Water Storage Dependability CB&I is the global leader in the design and construction of ground-level and elevated water storage tanks. We have extensive experience in all tank capacities and heights and use our in-house resources to perform all tank and foundation design, fabrication, construction and painting.

Tank Connection is the industry leader in elevated water tanks in North America. We design, manufacture, and install bolted and welded water tanks.

What is a Composite Elevated Tank? A composite elevated water tank is comprised of a welded steel tank for watertight containment, a single pedestal concrete support structure, a foundation, and accessories. These tanks are also sometimes referred to …

DEFINITION: An elevated welded carbon-steel water storage tank, supported by a series of carbon-steel supporting columns and cross braces. Double Ellipsoidal (DE) for 150,000 gallons and smaller; Torus Bottom (TB) for 200,000 gallons and larger.

PART 3.0 – TANK DESIGN AND MATERIALS 3.1 GOVERNING SPECIFICATIONS A. Material, design, welding, shop fabrication, erection, testing, and inspection of the proposed elevated water storage tank shall be in compliance with the latest revision of AWWA D100 for “Welded Carbon Steel Tanks for Water Storage” and ACI 318. B.

A composite elevated storage tank is an elevated welded carbon-steel water storage tank, supported by a steel-reinforced concrete support pedestal.