Nevada City, CA
Sugarloaf Trail

PROJECT  DESCRIPTION: A  proposed non-motorized, multi-use trail construction project within the Nevada City limits on a 30.59-acre open space parcel (APN 36-020-26) that encompasses all but the northern flank of Sugarloaf Mountain, with easements through two private parcels (APNs 53-310-09 & 53-310-10) and along the right-of-way of State Highway 49. The goal of the trail project is to connect downtown Nevada City to the top of Sugarloaf Mountain. The trail route will be approximately one mile in length. It will commence at the corner of State Highway 49 and North Bloomfield Road, and terminate at a point along an existing gravel access road that goes to the top of Sugarloaf from an entrance on upper Coyote Street.  The new trail will also connect to an existing graveled excavated area, approximately 0.10 acre in size that will be improved to accommodate trail parking for approximately eight vehicles. The parking area will connect via an existing informal, user-created trail, which will be minimally improved (brush clearing and tread improvement for drainage and loose rock removal).  The proposed trail also offers connection to Hirschman Trail and Tobiassen Park via a recently established County trail that runs west from North Bloomfield Road to the Nevada County Government Center.

The first 1/3 mile of the trail will run east from the northeast corner of State Hwy 49 and North Bloomfield Road, within the State Hwy 49 right of way to a 20-foot wide private easement that traverses the west side of APN 05-310-09 (currently leased by US Forest Service) and through  the west side of APN 05-310-10. From there, the trail enters the City’s Sugarloaf property, continues in a northeasterly direction, before aligning primarily to the north and ultimately connecting to the existing Sugarloaf Trail access road.  

All new trails will be constructed in accordance with USFS trail construction standards and best management practices (BMPs). The total disturbance area will be approximately 1/2 acre. The trail will be narrow, not to exceed four feet in width in order to encourage slower travel speeds. Vegetative clearings up to 10-feet wide may occur every 200-feet in order to accommodate winter vegetative burn piles during trail construction and for continued trail maintenance. Trail grades will typically be close to 8% throughout the project, except where physical constraints require a steeper grade to avoid irregular topography, rock outcrops, large trees or other environmental concerns.  In no case will grades exceed 15%. Trail tread width will vary from 36 to 48  inches, depending on location, and physical constraints. On steep, rocky slopes, the trail width will be narrow to minimize disturbance and to reduce trail construction costs. The trail will be built using a mini excavator, chainsaws, and a variety of hand tools. On site materials used include rock for retaining walls and fill, and soil for grading will be used for construction of the trails.

The proposed trail is located in the lower montane coniferous forest zone of the northern Sierra Nevada foothills at elevations of 2,600 to 3,000 ft. The trail will traverse an unnamed intermittent stream that parallels the western boundary of the Sugarloaf property. The intermittent stream is approximately 30-inches wide and will be crossed via a 15-foot span wooden bridge within the State Hwy 49 right-of-way. A rock retaining wall will also be necessary to stabilize an area of the proposed trail along a portion of the private easement through APN 05-310-10.

Supplemental Information and Special Studies

Geotechnical Report
Cultural Resource Survey
Biological Inventory and Plant Survey
Sugarloaf Master Plan Approved Trail Route


       
       
       
       
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