Underground Infrastructure - March 2023 - 16

Convention Review
general public, homeowners and employees. Th is technology
has been used on a number of project where there is a high
risk of concern. Also, we have seen clients starting to add this
technology into specifi cations to protect environmental release
of hazardous air pollutants during the CIPP process.
Rehabilitation Project of the Year
Th e city of Evansville, Ind., was experiencing signifi cant sink
holes of about 60 and 72 inches in reinforced concrete pipes on
the inside of the cloverleaf on US 41/Lloyd Expressway which
is located near the Ohio River and downtown Evansville. Aſt er
inspection by the City and Arcadis (engineer), it was determined
that the pipe was deemed to be in good structural condition,
but the joints needed to be sealed and the loose soils
and voids surrounding the pipe stabilized to eliminate the
danger of future sinkholes in the area. Th e Expressway averages
an average of 100,000 motorists every day, so the safety of
the community was at danger. Aſt er careful consideration, it
was approved to use injection grouting for the job, specifi cally
using hydrophobic polyurethane grouts from Avanti. Th e job
was awarded to Culy Contracting of Winchester, Ind. Culy is
an experienced underground utility infrastructure contractor
with over 40 years in the construction business.
Through Phase 1 of the project (June 2021 - November
2021) and Phase 2 June 2022 - August 2022), Culy injection
grouted approximately 12,000 gallons Avanti hydrophobic
polyurethane grouts. The grout was injected through
the pipe joints and into the surrounding soil, filling voids,
stabilizing the pipe and creating a waterproof barrier for
infiltration. Due to the cloverleaf, the pipes had to be internally
bypassed. After the completion of grouting, the joints
were coated using Madewell's Mainstay ML-72 and Epoxytec's
Cladliner, and over 4,000 linear feet of the pipes were
cleaned. Culy Contracting executed the project on time and
on budget for Evansville.
Rising Star of the Year
As Managing Director of Vortex Companies' European Division,
Quin oversees the day-to-day and long-term growth
strategy as the company continues to expand its products and
services businesses throughout Europe. He has been instrumental
in managing Vortex's cross-border transactions and
managing strategic relationships. In the past few months, he's
succeeded in establishing manufacturing capabilities for Vortex
mortars and polymerics in Europe, entered into strategic
partnerships with other European companies, and opened
Vortex's new European headquarters in Munich, Germany.
Quin also continues to expand the European sales and operations
team. Quin's eff orts are helping bring much-needed
technologies, expertise and services to the European market.
Sewer & Water Project of the Year
Culy Contractors earned Rehabilitation Project of the Year honors. They
were supported by Avanti.
Lake Lure, NC, is a popular destination during the summer
season. Aging manholes located along the shoreline of a
large man-made lake were a source of I & I that was placing
excessive burden on the town's small treatment plant during
summer. Th e sewer system runs on the fl oor of the lake with
manholes located along the shoreline with connected property
laterals and from there into mainlines on the lakebed bottom
which are held by cribbing. Sewage is conveyed by gravity
feed to the town's wastewater treatment plant. It was decided
that the system's 65 manholes needed rehabilitation inside
and out to reduce I & I.
Many of the structures had odd positions along the shoreline
as well as unusual lateral tie-ins with odd connection
Emerging Technology of the Year was awarded to GE Research, Warren
Environmental and Garver for their collaborating to develop PipeLine
Underground Trenchless Overhaul (PLUTO).
16 MARCH 2023 | UndergroundInfrastructure.com
heights and placements. CTR Coatings of Knoxville, Tenn.,
was contracted to perform the rehabilitation project and on
average were able to complete six to 8 manholes a week as the
only way to access them was by watercraſt . A thorough cleaning
and fi lling with hydraulic cement to remedy holes and gaps
was performed followed by drying with indirect heat wagons
and propane torches to prepare surfaces for the spray-applied
lining. CTR Coatings applied OBIC 1200, by OBIC Products,
a semi-structural material designed for culverts and wastewater
applications due to its high impact resistance.
http://www.UndergroundInfrastructure.com
Underground Infrastructure - March 2023

Table of Contents for the Digital Edition of Underground Infrastructure - March 2023
