Trenchless Technology

NOV 2018

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UTAH SA LT L A K E C I T Y MP12A-700 South Sanitary Sewer Capacity Upgrades BTrenchless Microtunneling for this project for Salt Lake City Public Utilities began on Aug . 13, 2018, and was completed on Oct . 31. Crews used as Akkerman SL60 MTBM with a lube-and-jack can, skinned up to 72-in. Ground condi- tions consisted of very soft , sticky clays with fines, and a few small pock- ets of sandy material . The ground wa- ter table was at spring line of pipe on average. BTrenchless used Permalok steel casing , 70-in. ID, 72-in. OD in 20-ft lengths to complete the 700-ft long tunnel . Project personnel: John Beckos (Project Manager), Don Meyer (Su- perintendent), Joe Barger (Supervi- sor), Randy Starck, Brandon Lindberg , London Anderson, Edgardo Iraheta , Daniel Molina, Bryson Dick, and Sean Vasquez . VIRGINIA F R E D E R I C K S B U R G Claiborne Run Sewer Bradshaw Construction Corp. This $565,751.50 project consists of 170 lf of 60-in. steel casing to be mi- crotunneled for a 42-in. gravity sewer on abandoned State Road 218 along Clairborne Run and under a CSX Rail - road. Ground conditions are expected to be dense and clayey fine sand un- der the water table at depths ranging from 18 to 60 vf. Mobilization began in October with completion expected before the end of the year. Owner: Stafford County Depart- ment Utilities; Contractor: W.C . Spratt Inc.; Engineer: Timmons Group; Equipment : Herrenknecht AVN-1200 MTBM. Bradshaw Project Manager: Jordan Bradshaw. R I C H M O N D Western Area Trunk Sewer Bradshaw Construction Corp. The work for this $868,400 project consists of providing approximately 532 ft of 30-in. ductile iron gravity sewer line with a 60-in. casing micro - tunneled under the eastbound and westbound lanes of I-64. Ground con- ditions are sandstone and gravel un- der the water table. The project began in June 2018 and was completed Oct . 12. Owner: Henrico County Department of Public Utilities; Contractor: Gaston Brothers Utilities LLC; Engineer: AE- COM; Equipment : Herrenknecht AVN- 1200 MTBM. Bradshaw Project Man- ager: Doug Piper. CANADA B R I T I S H C O LU M B I A N O R T H VA N C O U V E R North Shore Conveyance Project NSCP – a Joint Venture of Michels Canada and Kenaidan Contracting This project for the Greater Vancou- ver Sewerage & Drainage District con- sists of seven total drives: three drives with an Akkerman SL60, 1,300 ft total (60-in. diameter); three drives with a Herrenknecht AVN1800, 3,100 ft to- tal (96-in. diameter); and one curved drive with a Herrenknecht ANVD2500, 1,394 ft (128-in.). The depth of cover varies from 18 to 35 ft. Ground condi- tions are sand, gravel and cobbles with boulder potential, with the water table near the surface. The project is in close proximity to CN rail lines. The 100 per- cent design is due Dec. 15. Shaft con- struction was to begin Nov. 12, with microtunneling beginning January 2019 and completion in September 2020. WSP (Opus) is the engineer. V I C TO R I A McLoughlin Point Waste Water Treatment Plant – Outfall Michels This project for the Capital Regional District involves a single drive of 113 m (370 ft) through granitic type rock. Crews will install Permalok Pipe with T7 connectors of 3,048 mm (120 in.) x 2,120 mm (83.5 in.) steel casing with interior and exterior lining . There is limited access to the shaft area with a shaft depth of approximately 13 m (42.6 ft). The project includes an un- derwater rock excavation to construct a retrieval trench under 12 m (39 ft) of water depth. The ocean outfall is in an environ- mentally sensitive ocean area, with underwater activities and durations limited by environmental constraints such as fish migration, sediment dis- turbance, etc. The estimated start date is late 2018, with estimated comple- tion in mid-first quarter 2019. Graham /AECOM is the contractor with AECOM serving as the engineer. Crews will use a Herrenknecht AVN 1800. ONTARIO B R A M P TO N Twinning of the East Brampton Trunk Sewer Ward and Burke The Region of Peel Water and Waste- water Master Plan recognized the need to twin an existing trunk sewer due to capacity deficiency servicing existing and future needs of Caledon and Brampton. The Region retained Associated Engineering to provide en- gineering services for the preliminary and detailed design of the trunk sewer twinning . The resulting project to build a new parallel sewer included approximately 5.2 km of 1,500-, 1,650- and 1,800 mm ID sewer from near the intersection of Queen Street and Goreway Drive to south of the intersection of Highway 38 T R E N C H L E S S T EC H N O LO GY N OV E M B E R 2018 N O R T H A M E R I C A N M I C R O T U N N E L I N G 2 0 1 8 R E V I E W M I C R O T U N N E L I N G J O B L O G 2 0 1 8 MP12A-700 South Sanitary Sewer Capacity Upgrades

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