Piehl, Rob ; Freitas, Gary ; VanDyke, Richard . 2005. Trenchless Culvert Replacement Using a Horizontal Pipe-Driving System: Agness Road, Rogue-Siskiyou National Forest. 0571 3805. Engineering Field Notes: Volume 37 Issue 1. Washington DC: U.S. Department of Agriculture, Forest Service, Engineering. 9 p.

Describes use of a proprietary horizontal pile-driving system to replace a culvert on the Agness Road in the Rogue-Siskiyou National Forest, Gold Beach, OR. Large-diameter pipe ramming is compared to traditional pipe excavation.

Keywords: bypasses, casings, civil engineering, fish passage, geotechnical engineering, Permalok, pile drivers, piledrivers, salmon, steelhead

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