THE HIGHLANDS PLATEAU GREENWAY

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CRIBBING A TRAIL

    On December 13, 2008, guided by Frederica "Fred" Lashley, a professional stone mason, trail builder, and former Appalachian Trail Conference Crew Leader from Asheville, N. C., Greenway volunteers created a dry stack stone crib to support a treadway over a hillside culvert and ephemeral stream crossing. This treadway would link the trail from the bridge over Mill Creek and the newly created stone steps to a bench overlooking the cascades of Mill Creek.

Moving the First StoneSetting the First Stone

Large gneiss stones were loaded on the Canycom tracked wheelbarrow and slid down the hill to the edge of Mill Creek, where they were stacked, slanting slightly toward the embankment, in rows. Where there were projections, gasoline powered drilling allowed them to be cleanly broken off with a sledge hammer. In some instances a wedge and feathers were fitted into a drilled hole, and the wedge was driven between the feathers with a hammer until the rock broke.

Drilling the StoneWedging the Stone

A Yanmar mini-excavator was used to load the Canycom with crusher run, which was added as backfill for the tread of the trail.

The Yanmar Loading GravelThe Canycom Unloading Gravel

The stone cribbing not only supported the trail tread but also allowed the water to follow its natural course unimpeded beneath the gravel and stone into Mill Creek. Plastic geo-webbing and gravel were then used to cover the under-drain and prevent a soggy trail and damage from erosion.


Distributing the Gravel Aligning the stone  Laying Geo-Webbing

For more information about Fred Lashley's Unturned Stone, see her website at www.unturned.net

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The Completed Cribbing. Photographs by Randolph Shaffner.

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This website is constantly under construction. For more information about the Highlands Plateau Greenway, please Contact us or write to P. O. Box 2608, Highlands, NC 28741.
Last modified on July 24, 2017.