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In 1979, while drilling for oil, Husky Oil discovered an abundant source of
drinking water in the Madison Aquifer. The artesian well was given to the
City of Worland for use as a municipal water supply. Two years later the city
drilled another well and began construction on a 22-mile transmission line to
bring the water to town. The wells produce over 5 million gallons per day at
a wellhead pressure from 140 psi to 210 psi.
Donnell & Allred was involved in the conceptual development and
construction engineering of the wells, transmission line and various
structures included in the project. The project consisted of 22 miles of
large diameter pipeline, two well houses, two low zone pressure reducing
stations and a chlorination and pressure reducing station.
As part of the supply system, we designed and oversaw construction of two 2.5
million gallon prestressed concrete water storage tanks. The walls for the
tanks were cast in place with internal vertical rods. Several miles of
high-tension steel cable wrapping around the tank provide support for the
walls. The East Tank was located along the new transmission line. The West
Tank required another 1 1/2 miles of 20" and 16" pipeline to connect to the
existing city system.
We have also designed and overseen construction of over 33000 feet of new and
replacement water mains throughout the city over the past 15 years.
As city engineer Donnell & Allred continues to provide the design for a
safe and economical water supply for the citizens of the City of Worland.
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