Underground Construction - May 2019 - 12

Jeff Griffin | Senior Editor

Trenching In Tennessee
Relocating, Replacing Utility Lines Keeps Cleary Construction's Trencher Busy
Cleary Construction is involved
in a major project to relocate
and replace utility lines in
Smyrna, Tenn. Moving the
utilities is necessary due to a
road widening project to improve
traffic flow in this growing community located about 20 miles
southeast of Nashville.
When construction is completed at the end of the year, Cleary
will have installed approximately
20,500 linear feet of pipe ranging
in diameters from 4 to 16 inches.
The project owner is the
town of Smyrna. The primary

contractor is Jones Brothers
Construction LLC, with Cleary
Construction the subcontractor
for trenching and installing mainline natural gas, water and sewer
lines, and appurtenances.
When the project is complete,
pipe installed will include:
* Gas pipe: 950 feet of 6-inch
steel and 100 feet of HDPE
* Water pipe: 11,300 feet of
12-inch, and 300 feet of
16-inch ductile iron pipe;
PVC in lengths of 125 feet of
6-inch, 350 feet of 8 -inch
and 150 feet of 10-inch
* Sewer pipe: 225 feet of PVC
sewer pipe.

Trencher
Excavation is being done with
a 630-horsepower Trencor
track trencher equipped with
a 12-foot boom and Berco rock
chain. It is the only trencher
used on the project.
Soil conditions are a thin layer
of top soil over clay. and rock.
The majority of the project has
outcroppings of limestone.

12

MAY 2019 | UConOnline.com

"All pipe is being placed in easements on both sides of the road,"
said Darren Cleary, president of
Cleary Construction. "Trench
width for the entire project is
42 inches, with depths of 4.5
feet to 10 feet. Pipe is bedded
and backfilled with approved
stone/sand per the owner's
requirement. The remainder of
the trenches are backfilled to the
surface with native material."
The work requires multiple
moves and setups during
trenching, Cleary continued, and
calling for extensive planning
and oversight by managers,
the superintendent and the
trenching crew.
Phase one of the project
includes water, gas and finishes
with sewer. Phase two is more
water, then gas.
Support equipment comprises
Caterpillar 335 and 321 excavators, a Caterpillar wheel loader,
Takeuchi skid steer and John
Deere 650 dozer.
In addition to trenching and
pipe installation, Cleary is install-

ing valves, hydrants and making
service connections.
Communication is a key to
making work go smoothly.
"We had to trench across a
major highway in several areas,"
said Cleary, "and the project
involves daily communication
with all parties involved and the
public, plus extensive planning
and execution of traffic control."
Based in Tompkinsville, KY,
Cleary was established in 1985 to
do paving, chip sealing and loader
work, but also has expanded its
capabilities to include water,
sewer, gas, site work, bridges, and
water and wastewater treatment
plant work. Cleary works in eight
states. *
FOR MORE INFORMATION:
Cleary Construction,
(270) 487-1784, clearyconst.com
Trencor, (419) 869-7107,
trencor.com
Caterpillar, (309) 675-1000,
cat.com
John Deere, (309) 748-0114,
johndeere.com
Berco, thyssenkrupp-berco.com/
http://www.clearyconst.com http://www.trencor.com http://www.cat.com http://www.johndeere.com http://www.thyssenkrupp-berco.com/ http://www.UConOnline.com
Underground Construction - May 2019

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