STORAGE TANKS

AWWA D110

DURABILITY

TO COMEFor more than 90 years, DN Tanks has constructed liquid storage tanks to provide you with a reliable water source when you want it, and more importantly, when you need it. It is not just our passion; it's our legacy.

We are a solutions-focused company and back our tanks with employees who are committed from inception through construction and beyond to give you the best solution for your system.

When considering your facility's fire suppression system, potable water source, thermal energy storage, wastewater and recycled water containment and all your system storage needs, think of DN Tanks.

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Fire Protection Benefits Advantages

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Key Attributes of a DN Tanks AWWA D110 Prestressed Concrete Fire Protection Tank

• Tank Capacities — from 40,000 gallons to

50 million gallons (MG) and more.

• Custom Dimensions — water heights from 8’

to over 100’ and diameters from 25’ to over

500’.

• Siting Options — at grade, partially buried,

differentially back-filled (hillsides), fully

buried (with multi-use capabilities).

• Seismic Resilience — designed with an anchored

flexible base for enhanced ductility and

seismic performance.

• Durability — regardless of weather extremes,

proven reliability through extreme fire and

freeze thaw events.

• Prestressed Wall Compression — provides

longevity, durability and liquid tightness.

• Reinvesting in the Local Economy — use of

materials, labor and equipment from within

the community.

• Fire Suppression — tanks are custom designed

and constructed in accordance with the NFPA

Standard 22.

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DN Tanks Understands the Challenges Associated with Construction of Fire Protection Storage Tanks, which are often in close

proximity to surrounding buildings and located at the heart of busy facilities. Our experience

constructing tanks across a wide array of industries and applications makes us uniquely

qualified to meet your fire protection

storage needs.

INDUSTRY LEADING EXPERIENCEDN TANKS is a specialty contractor focused exclusively on the design and construction of AWWA D110 prestressed concrete tanks. We have over

3,000 installations and over 90 years of experience designing and constructing tanks for fire protection water, wastewater, and thermal energy

storage.

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FIRE PROTECTION BENEFITSNFPA 22 COMPLIANCE DN Tanks designs and constructs fire protection

tanks in accordance with the National Fire

Protection Association Standard 22 (NFPA 22)

and the AWWA D110 Standard.

SINGLE PARTY RESPONSIBILITY All aspects of tank design and construction,

inlcuding tank insulation and heating systems,

are performed by DN Tanks providing a turn-key

solution for your fire protection storage needs.

NO OUT OF SERVICE TIME The concrete interior of an AWWA D110 tank

elminates the need for protective coatings

and the downtime associated with periodic

coating maintenance. By elminating down time

for maintenance, a prestressed concrete tank

ensures your facility is continously protected with

reliable fire suppression storage.

FLEXIBILITY DN Tanks provides the ultimate flexibility in

siting and architectural enhancments to fit your

project. Our tanks can be constructed at-grade,

partially buried, or fully buried. Architectural

elements including painted logos, brick veneers,

EIFS systems, or other aesthetic enhancements

can be included to compliment nearby buildings

and structures.

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ADVANTAGESUNPARALLELED DURABILITY & RELIABILITY Our unique design features provide unmatched

durability and service.

PRECAST WALL CONSTRUCTION The tank walls are horizontally precast in one

continuous concrete pour with no horizontal

joints. Each panel is inspected and tested before

it is incorporated into the structure. This provides

the highest degree of quality control by casting

on-site individual sections.

EMBEDDED STEEL DIAPHRAGM A continuous steel diaphragm acting as as water

barrier is permanently encased in concrete in the

finished tank wall. This provides assurance for

long-term reliability and elimination of leakage.

FLEXIBLE FLOOR WALL CONNECTIONS The tank is constructed so that the floor walls

are structurally independent. This allows the wall

to expand and contract without placing excessive

bending stressed on the wall or floor.

EXTERNAL WIRE-WOUND PRESTRESSING The tank walls are placed into compression by

circumferential prestressing. Every prestress

wire is fully encased in shotcrete to provide long

term corrosion protection. This ensures the tank

walls will remain in permanent compression,

eliminating shrinkage cracks, stress cracks,

seepage, and deterioration.

SPEED OF CONSTRUCTION The on-site precasting operation permits

simultaneous construction of the tank walls

and floor; resulting in a fast and efficient

tank construction process. With no need for

protective coatings, the construction time can be

further reduced by placing the tank into service

immediately upon completion.

LOCAL INVESTMENT The on-site construction process provides a

boost to the local economy by incorporating

local materials, labor, and equipment into every

project we construct.

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855.368.2657 | DNTANKS.COM

DN Tanks has 10 regional offices and 3 operations facilities located in Greater Boston, MA • Dallas, TX • San Diego, CA

February 2020. © 2020 DN Tanks. All rights reserved. DN Tanks is a registered trademark of DN Tanks.