Todd Maersch Consultant Transmission Line Engineer American Transmission Co. SEPTEMBER 5 - 7, 2018 1
Traditional Methods for Foundation Installation Traditional Vibratory Direct Bury SEPTEMBER 5 - 7, 2018 2
SEPTEMBER 5 - 7, 2018 3
Driving Innovation: How it Works SEPTEMBER 5 - 7, 2018 4
Driving Innovation: How it Works SEPTEMBER 5 - 7, 2018 5
Driving Innovation: How it Works SEPTEMBER 5 - 7, 2018 6
Driving Innovation: Why it Works • Less equipment needed • Drastically reduces set up times • Only two to three crew members required • Safety, environmental, landowner, and cost benefits SEPTEMBER 5 - 7, 2018 7
Driving Innovation: Why it Works Direct Bury Traditional Solo-Driver™ Vibratory Method Installation Equipment Required Large digger Two cranes One excavator • • • derrick • Flatbed truck • Crane • Power pack Dump truck Taglines • • Crew Size 5 5 2-3 Overhead clearance 60-80 ft. 60-80 ft. 30-40 ft. Total Installation 150 75 minutes/caisson 25 minutes/caisson Time minutes/structure 8 installations/day 18 installations/day 4 installations/day SEPTEMBER 5 - 7, 2018 8
Driving Results: Improved Safety • Hammer safety interlock • No foundations suspended overhead • No heavy umbilical cables to lift and maneuver SEPTEMBER 5 - 7, 2018 9
Driving Results: Environmental Stewardship • Lighter Equipment – significantly reduced environmental impact • No spoils to remove • No soil mixing • No dewatering • Minimal restoration SEPTEMBER 5 - 7, 2018 10 10
Driving Results: Landowner Acceptance • Return land to owner faster • Less soil compaction • Minimal impact to agriculture operations • Less noise disturbance SEPTEMBER 5 - 7, 2018 11 11
Driving Results: Costs • Initial indications show Solo-Driver is poised to cut costs significantly compared to traditional installation methods – Reduced equipment costs – Reduced labor costs – Reduced project risk dollars due to smaller construction window SEPTEMBER 5 - 7, 2018 12 12
Driving Results: Soil Type and Access • Solo-Driver is more efficient than other methods, even when navigating challenges that can slow any foundation installation project – SOIL TYPE • FAVORABLE: Sandy or loose soil 18-23 per day • LESS FAVORABLE: Higher clay content 6-8 per day • UNFAVORABLE: Rocks and cobbles – ACCESS • One unloading/reloading 15-23 per day • Multiple unloadings/reloadings 7-9 per day SEPTEMBER 5 - 7, 2018 13 13
Driving Excellence: About ATC • Began in 2001 as first multi- state transmission only utility in U.S. • $4.7B in assets – 9,600 miles of transmission lines – 554 substations • Committed to excellence and innovation SEPTEMBER 5 - 7, 2018 14 14
Driving Excellence atcllc.com/solo-driver SEPTEMBER 5 - 7, 2018 15 15
Q&A Todd Maersch tmaersch@atcllc.com (608) 877-3697 SEPTEMBER 5 - 7, 2018 16 16
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