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White Mountain National Forest 71 White Mountain Drive Campton, NH 03223 Phone: 603 536-6108 Fax: 603 536-3685 Swan’s Way Trail Relocation – Decision Memo Gale River Trail Relocation United States Project Department of Agriculture Towns of Bethlehem and Franconia Forest Grafton County, NH Service Eastern Decision Memo Region Prepared by the Pemigewasset Ranger District August, 2010 Mountain National Forest For Information Contact: Kori Marchowsky Pemigewasset Ranger District White Mountain National Forest 71 White Mountain Drive Campton, NH 03223 Phone: 603 536-6108 Fax: 603 536-3685 www.fs.fed.us/r9/forests/white_mountain White This document is available in large print. Contact the Pemigewasset Ranger District White Mountain National Forest 603-536-6100 TTY 603-536-3665 The U.S. Department of Agriculture (USDA) prohibits discrimination in all its programs and activi- ties on the basis of race, color, national origin, sex, religion, age, disability, political beliefs, sexual orientation, and marital or family status. (Not all prohibited bases apply to all programs.) Persons with disabilities who require alternative means for communication of program information (Braille, large print, audiotape, etc.) should contact USDA’s TARGET Center at (202) 720-2600 (voice and TDD). To file a complaint of discrimination, write USDA, Director, Office of Civil Rights, Room 326-W, Whitten Building, 1400 Independence Avenue, SW, Washington, DC 20250-9410 or call (202) 720- 5964 (voice and TDD). USDA is an equal opportunity provider and employer. Printed on Recycled Paper 2 Gale River Trail Relocation Project – Decision Memo Table of Contents 1 Summary.........................................................................................................................5 2 Background ....................................................................................................................5 2.1 Project Area ...........................................................................................................5 2.2 Purpose and Need ...............................................................................................5 2.3 Alternative Actions Considered But Dismissed ..............................................5 3 Decision to Be Implemented ........................................................................................6 4 Rationale for Categorically Excluding the Decision .................................................7 4.1 Category of Exclusion .........................................................................................7 4.2 Finding that No Extraordinary Circumstances Exist ......................................8 5 Public Involvement .......................................................................................................9 6 Findings Required By and/or Related to Other Laws and Regulations ..............10 7 Administrative Review or Appeal ............................................................................10 8 Implementation Date and Contact ............................................................................11 3 White Mountain National Forest – Pemigewasset Ranger District 4 Gale River Trail Relocation Project – Decision Memo 1 Summary After careful consideration of public input, the recommendations of appropriate resource specialists, and the requirements of applicable laws and regulations, I have decided to authorize relocation of an approximately one-mile section of the Gale River Hiking Trail off of the Gale River Loop Road in the towns of Franco- nia and Bethlehem, NH. 2 Background 2.1 Project Area The Gale River Trail is a four mile long hiking trail connecting the Gale River Loop Road to the Garfield Ridge Trail (part of the Appalachian Trail) between Mount Garfield and Galehead Mountain. This trail provides the most direct access to the Appalachian Mountain Club’s Galehead Hut, several 4000-foot summits with excellent views, is an important link for a popular day-hiking loop, and receives high use from both day-hikers and overnight backpackers. The Gale River Trail follows the course of the North Branch of the Gale River up- stream and southward to the ridgeline; it currently crosses the river 1.7 miles from the trailhead and recrosses the river at 2.5 miles. A bridge spanning the lower crossing washed out in 2005; this crossing now utilizes large boulders and is very difficult in moderately high water. The upper crossing is also difficult in high water. 2.2 Purpose and Need In an effort to improve the safety of river crossings on the Gale River Trail, a bridge was constructed across the more difficult of the two significant crossings. This bridge washed out in a high water event in 2005. The primary purpose of and need for this project is to address the safety concerns posed with this difficult crossing. Due to the ‚flashiness‛ of steep, small upland catchments such as this one (the river responds very quickly to a rain or spring melt event, and then subsides relatively quickly), odds are that another bridge at the same location would eventually meet the same fate as the former bridge and wash away. During field visits in June 2009, resource specialists also observed that 5 White Mountain National Forest – Pemigewasset Ranger District some segments of the trail between the two crossings are in undesirable locations due to stream flow and bank stability concerns. District personnel concluded that the best long-term solution with the least environmental impacts would be to relocate the trail and eliminate both crossings of the North Branch of the Gale River. 2.3 Alternative Actions Considered But Dismissed I considered leaving the trail in its current location and reconstructing the bridge that washed out in 2005. The Purpose and Need section describes my rationale for dismissing this alternative. 3 Decision to Be Implemented My decision is to authorize relocation of approximately one mile of the Gale Riv- er Trail, keeping the trail along the west side of the North Branch of the Gale River. Trail relocation would require new construction largely across the slope of the drainage above the river. The new trail segment would cross one smaller tributary to the North Branch; this crossing is safer than either of the two cross- ings to be eliminated and would not require a bridge. Trail construction will entail clearing saplings, brush, debris and few small di- ameter trees from the proposed route. Much of the new route passes through dense, small-diameter red spruce and balsam fir and limited larger tree removal is anticipated. Hand tools would be used to construct the new trail segment. Below the North Fork tributary, the new trail will ascend a small bench, and then becomes nearly flat. Short stretches of steeper grades up to the bench will be mi- tigated with soil retaining steps as needed. The grade then remains flat until the relocation side-hills off the bench to approach a tributary crossing at about four tenths of a mile from the beginning of the relocation. Grades then approach ten percent and will be mitigated with erosion control structures as necessary. The tributary crossing will be on large boulders and brings hikers to a steady cross-slope climb with grades averaging 12 percent. While some short sections bear off a direct line to mitigate slope, and the entire section of trail bends in a slight dogleg to avoid wet areas, there will be no constructed switchbacks. Grades will be kept to a minimum as the terrain allows. Reaching a height of land, the relocation descends briefly to rejoin the existing trail approximately one 6 Gale River Trail Relocation Project – Decision Memo tenth of a mile past the current second crossing of the North Fork of the Gale River. The Forest Soil Scientist confirmed that the soils are stable, and water bars will be installed at regular intervals. The old segment of trail will be permanently closed and rehabilitated. Erosion problems on the old segment of trail will be addressed with erosion control structures as necessary. The proposal is consistent with the WMNF Land and Resource Management Plan’s (Forest Plan) goals, objectives, standards and guidelines. Implementation is expected to occur during late summer or fall of 2010, when soil conditions are favorable for all soil disturbing activities. It is expected that this project would be completed prior to late fall, 2010. The Pemigewasset Ranger District Trail Crew, supervised by the Trails Supervisor, will complete all trail work. This decision is based on my review of the project record, including input from the public and appropriate resource specialists. The record shows a thorough re- view of relevant scientific information, a consideration of responsible opposing views, and the acknowledgement of incomplete or unavailable information, scientific uncertainty, and risk. My decision is also based on my past experiences with similar activities on the White Mountain National Forest. 4 Rationale for Categorically Excluding the Decision Based on information in the project record and experience with similar activities on the WMNF, I have concluded that this decision can be categorically excluded from documentation in an environmental impact statement or environmental as- sessment. Decisions may be categorically excluded from documentation in an environmen- tal impact statement or an environmental assessment when they are within one of the categories found at 36 CFR 220.6(d) and (e), and there are no extraordinary circumstances related to the decision. 4.1 Category of Exclusion I have determined that the selected action is a routine activity within the follow- ing category
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