Tunnel Business Magazine

OCT 2018

TBM: Tunnel Business Magazine is the market leader for North America. TBM is written for leading professionals in all aspects of tunneling and covers project stories, design elements, contracting strategies, legal issues, new technology and more.

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4 4 TUNNELINGONLINE.COM TBM: TUNNEL BUSINESS MAGAZINE // OCTOBER 2018 TP was issued y 7, 2018, with final completion estimate y 31, 2021. Tunnel Designer: Stante ) bcontractors: DiGioia- Suburban Excavating (open cut and misc. site work); on Construction Company (Shaft SOE); a Services Inc. (shaft excavation a Contracting Inc. (concrete structures); er: Lovsuns. Project Personnel: Deputy Director of Engine ): Doug Gabriel; Large Tunnel Construction ): Robert Auber; Senior Construction Supervis ): Ryan Sullivan; Project Sponsor (Jay Dee Obayashi JV): Tim Backers; Deputy Project y Dee Oba te Long; Project Engineer (Jay Dee Obayashi JV): Lisa Smiley; General Superintendent (Jay Dee Obayashi JV): Jerry Pordon. Columbus Blacklick Creek Sanitary Interceptor Sewer Blacklick Constructors LLC (Michels/Jay Dee) Blacklick Constructors is building the 10- ft ID Blacklick Creek Sanitary Interceptor Sewer for the City of Columbus. The $108.9 million project includes a tunnel approximately 23,000 ft in length with 40 to 140 ft of cover. The segmentally lined tunnel is being excavated using a Herrenknecht A short section of the alignment was constructed by open- cut prior to the launch of the machine. The tunnel is lined using a 4-ft long, bolted and gasketed precast concrete tunnel liner. The project includes 12 shafts, hydraulic drop structures, a passive odor control vault and appurtenances. As of late September, tunneling was 99% complete with approximately 230 lf of rock excavation left before holing through into the receiving shaft ahead of schedule. All the intermediate shafts have been completed and the final concrete structures are being built in completed tunnel se encountered rapidly varying glacial and alluvial materials, tills, boulders, sand, fill and shale; as well as a likely hydraulic conductivity up to 10-2 in soft ground portions of the alignment. Tunnel Designers: , Aldea Servic Black & Vea er: Herrenknecht. Project Personnel: Ed Whitman, Project on Klinghagen, General Superintendent; Amanda Kerr, Project Engineer; Peter DeKrom, Surv Superintendents, Engineers, and Safety: Joel Sostre, e Stucky, Ross, Farrington. Toledo Toledo Waterways Initiative – Phase II - Downtown Storage Basin Turn-Key Tunneling The Toledo Waterways Initiative (TWI) program encompasses more than 45 separate projects over the course of 18 years, at a total estimated cost of $527 million. As part of Phase II of the project, Turn-Key Tunneling has constructed a 725-ft long rib-and-board tunnel utilizing a hydraulically driven tunnel shield. The 12-ft diameter tunnel served as the initial pass for the two-pass tunnel system and act as the final host for the 110-in. sanitary sewer. Turn-Key Tunnel also constructed a 32-ft diameter shaft for a future junction chamber which served as the reception shaft for the shield removal. The tunnel was installed in lean clay with several boulders located throughout the heading. The tunnel was completed in mid-September with final liner pipe to be completed in early October. PENNSYLVANIA Philadelphia Delaware Canal Pedestrian Tunnel Turn-Key Tunneling This project for the Pennsylvania Department of Transportation features a 12-ft foot diameter tunnel installation, required to be installed with a hydraulic tunnel shield, to be performed by Turn- Key Tunneling. The project consists of a 140-lf drive of 144-in. tunnel beneath an active CSX railroad track. Anticipated grounds conditions include sand and gravel with ground stabilization required before the tunneling process can begin. The tunnel is scheduled to begin in late October with an open passage before the end of the year. SOUTH CAROLINA Greenville Reedy River Basin Sewer Tunnel Super Excavators Inc./Cooperatia Muratori Cementisti JV This $33.415 million project for Renewable Water Resources (RE-WA) comprises 6,000 lf of 130-in. ID rock tunnel with 84-in. Hobas carrier pipe grouted in place. The tunnel depth ranges from 40 to 130 ft below ground surface. There is a 40-ft ID by 40-ft deep launch shaft and 30-ft ID by 130-ft deep receiving shaft. The tunnel is to be mined in intact Gneiss bedrock using a double shielded rock gripp ed by Lovsuns Canada. Shaft construction will consist of liner plate and rock dowels with wire mesh. The project also includes 1,600 lf of 60 in. and 42-in. upstream and downstream connecting sewer as well as several junction chambers, screening/ diversions structures along with Odor Control facilities. The Drop Shaft is completed and the Access Shaft near the Cleveland Park Zoo will be completed by the end of October. Tunnel Designer /Construction er – Lovsuns Canada; Concrete Structures – Chardon Concrete; Cellular Grout –Pacific International Grout; Carrier Pipe – Hobas Pipe. Project Personnel: Justin Kolster – Senior Project , Super Excavators/ ognoli – Project eg Rehak – Vice President, Super Excavators; Stephen O' , Black & Veatch; Jason Gillespie – Senior Project , Renewable Water Resources. TEXAS Dallas Mill Creek/Peaks Branch/State Thomas Drainage Relief Tunnel Project Southland/Mole JV This $206.7 million project for the City of Dallas comprises 26,385 lf of 32-ft, 6-in. excavated diameter tunnel (30-ft ID) and 7 shafts (ranging from 120-VF to 200-VF). e primarily through Austin chalk using along with roadheader. As of late September, the project was 11% completed by duration with excavation of launching/entry shaft progressing (70 vf of 120 vf completed). Crews will install a 15-in. thick cast- in-place liner. There are six working sites within the city environment, and tunneling will occur under city infrastructure. Owner: City of Dallas; Lead Designer: HALFF; Tunnel Designer: CO Black and Vea er: Robbins; Subcontractor: Oscar Renda Constructing, Inc. Project Personnel: erations oject Travis Hartman; oject Quang D. Tran, P Deputy Proje Jencopale; tt Jackson. T U N N E L U P D AT E S

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