Salt Lake City, Utah
Print Case Study
URS Corporation – Salt Lake City
Dennis Lierd Construction
Dec 2014/Jan 2015
State Route 201 is one of the original highway routes running through the Salt Lake Valley. It is known colloquially as the 21st South Freeway and is preceded by such historic routes as the Pony Express and the Donner Party. It begins its western terminus at a partial interchange at I-80. The Utah Department of Transportation (UDOT) was conducting general upgrades and roadway improvements when they discovered a drainage section running several thousand feet under the SR201 and I-80 corridors that was severely deteriorated and in need of rehabilitation or replacement.
Having dealt successfully with Contech Engineered Solutions in the past, Dennis Lierd Construction, general contractor for the improvements, worked closely with Contech Engineered Solutions to determine what product solutions would work best to reline the stretch of pipe. Given that Contech has a broad array of reline products, this proved to be relatively easy. After assessing the full repairs necessary and hydraulic requirements through the existing host pipe, it was decided that A2™ Liner would be used for the majority of the lining with over 6,000 LF insert into the host pipe. A2™ Liner is ideal for heavy loads and deep bury applications. Construction crews can slip line with A2 Liner at a rate in excess of 200 feet per hour, greatly reducing both time and cost. ULTRA FLO® spiral rib and DuroMaxx® steel reinforced polyethylene (SRPE) liner pipe were also used in additional runs of approximately 500 LF each.
Jodie Lierd of Dennis Lierd Construction, Ltd., commented, "We installed 6000 ft of liner pipe under I-80 and I-215 that varied from 18"- 36" in diameter. Some of these stretches were as long as 550 ft. Contech provided an excellent product that was easy to work with and wonderful service from everyone involved. We really appreciated all the help and feedback we received for a smooth installation."
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