Underground Construction - November 2019 - 24

East Trunk Sewer Project Solves Weather Risk
undertaking, 8,056 linear feet of 48-inch Hobas pipe and 2,389
linear feet of 24-inch Hobas pipe were utilized. The 48-inch jacking
pipe had an allowable pushing capacity of 400 tons at a 2.5 factor
of safety. This equates to a pipe with over 1,000-ton capacity.
"Jacking runs measured 400 to 1,200 feet in length," said
Minger Construction CEO Patrick Minger, whose company has
used standard centrifugally cast, glass-fiber-reinforced, polymer
mortar pipe for more than a decade.

"Loads weighed between 100 to 190 tons and were a lot less
than expected," he added. "We figured on using jacking stations;
however, it's pretty amazing that the loads never got up there to
justify the stations. None were used. At the end of the project,
every foot of pipe was air tested and there were no problems."
Akkerman pipe jacking equipment played an essential role in the
construction process.
Headquartered in Jordan, Minn., Minger Construction subcontracted some of the borings work to St. Louis-based J & J Boring.
"They did an excellent job, so that probably accounted for why we
ran four months ahead of schedule," Minger noted.
When project restoration is completed in spring of 2020, the
East Trunk Sewer will add 1 million gallons of inline storage capacity to Mequon's sanitary sewer system. This sizeable increase will
halt the harmful effects of current wet weather conditions. As the
community grows, it will also ensure additional capacity for utility
service extensions. *
KIMBERLY PAGGIOLI, P.E., is the vice president of quality control
and marketing for Hobas Pipe USA.

The pipeline is constructed by consecutively pushing pipe and the MTBM
through the ground using a jacking system for thrust.

FOR MORE INFORMATION:
Minger Construction, (952) 368-9200, mingerconstruction.com
R.A. Smith National's Municipal Services Division, (262) 781-1000, rasmith.com
Hobas, (800) 856-7473, hobaspipe.com/hobas-pipe-usa
J & J Boring, (636) 566-6766, jjboring.com
Akkerman Inc., (800) 533-0386, akkerman.com

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Underground Construction - November 2019

Table of Contents for the Digital Edition of Underground Construction - November 2019

Contents
Underground Construction - November 2019 - FC
Underground Construction - November 2019 - IFC
Underground Construction - November 2019 - Contents
Underground Construction - November 2019 - 4
Underground Construction - November 2019 - 5
Underground Construction - November 2019 - 6
Underground Construction - November 2019 - 7
Underground Construction - November 2019 - 8
Underground Construction - November 2019 - 9
Underground Construction - November 2019 - 10
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Underground Construction - November 2019 - IBC
Underground Construction - November 2019 - BC
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