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Managing Degraded Off-Highway Vehicle Trails in Wet, Unstable, and Sensitive Environments

Appendix C—National Park Service Rivers, Trails, and Conservation Assistance Program Cooperative Research on Trail Hardening for Degraded Trails in Alaska

Locations Undergoing Field Tests of Trail-Hardening Systems

Wrangell-St. Elias National Park and Preserve—Three 40-foot test plots installed in 1996 of: corduroy, wood matrix, 1 ¼- and 2-inch GeoBlock, PVC matting, and a combination of two drainage mats. Detailed monitoring on thermal effect, revegetation, cost, and structural performance. Final report available (Allen 2000).

Palmer Hay Flats State Game Refuge—Four 20-foot test plots of 6 ½-foot-wide GeoBlock in a variety of configurations along with one 20-foot test plot of SolGrid and one 20-foot test plot of Geoweb on a estuarine area that provides ATV access to a waterfowl hunting area. One 60-foot test plot of GeoBlock was installed as a shallow-water ford in the same location. Installed fall 2000. First year monitoring report available.

Nine-hundred-foot installation of GeoBlock with a 600-foot shallow-water ford. Installed 2001. Contact refuge manager Colleen Matt, Alaska Department of Fish and Game (Phone: 907–267–2189).

Tongass National Forest, Sitka—Test of 100 feet of 2-inch GeoBlock and 100 feet of SolGrid on the Starrigavan Valley Recreation Area dedicated ATV trail system near Sitka, AK. Installed December 2000. Contact recreation planner Ann Marie LaPalme, Sitka Ranger District (Phone: 907–747–4209).

Tangle Lakes Archeological District—100-foot installation of 8-foot-wide GeoBlock and 100 feet of 8-foot-wide SolGrid on degraded OHV trails to protect cultural resources. Bureau of Land Management, Glenallen District. Installed August 2001. Contact John Jangala (Phone: 907–822–3217).

White Mountains National Recreation Area—200-foot test installation of 6 ½-foot-wide GeoBlock and SolGrid on an alpine OHV trail. Installed July 2001. Bureau of Land Management, Fairbanks, AK. Contact outdoor recreation planner Randy Goodwin (Phone: 907–474–2369).

General State lands, Homer, AK—300-foot installation of 4.8-foot-wide GeoBlock and SolGrid in test installation on degraded recreational OHV trails. Installed October 2001. Contact Homer Soil and Water Conservation District (Phone: 907–235–8177).

Glenallen District, Bureau of Land Management—1,000-foot demonstration installation of 8-foot-wide GeoBlock and Solgrid with partial gravel fill on degraded OHV trail segments along the Middle Fork trail, mile 169, Richardson Highway. Installed July 2002. Contact Rod Holbrook, trail coordinator, Glenallen District, Bureau of Land Management (Phone: 907–822–3217).

Kodiak, AK—700-foot installation of 6 ½-foot-wide GeoBlock on the Summit Lake trail. Installed August 2002. Contact Sam Christian, Kodiak Soil and Water Conservation District (Phone: 907–486–9451).

Nancy Lake State Recreation Area—65-foot installation of 6 ½-foot-wide GeoBlock on the multiuse Red Shirt Lake trail. Installed June 2002. Contact John Wilber (Phone: 907–495–6211).

General State lands, Homer, AK—Proposed 2 ½-mile, 6-foot-wide puncheon OHV trail for the Caribou Lake trail. Tentative installation date is summer 2003. Contact Lindsay Winkler, Homer Soil and Water Conservation District (Phone: 907–235–8177, ext. 5).