Pacific Pile and Marine drives 5 foot diameter casing over 200 ft in length with company owned D100-42 for the Alaska Way Viaduct temporary detour off ramps. These ramps are ahead of the new underground tunnel that will be placed under downtown Seattle to replace the old viaduct. There will be 28 piles driven for the ramp pictured in this article. APE offers the only true D-series hammer available on the market.  The efficiency and reliability of the D-series single acting impact hammers have been in service since the early 40’s building the world’s infrastructure.  When a contractor needs reliability they call on APE Equipment.