Central Coast Ranger District Meadow Maintenance

Scope of Contract The intent of this solicitation is to provide services, equipment, and labor necessary for maintaining and restoring the Oregon silverspot butterfly habitat on the Central Coast Ranger District. The primary focus of treatments is controlling unwanted vegetation in the meadows. Unwanted vegetation includes but is not limited to non-native grasses, fern, blackberry, salal, shrubs, and small trees. Portions of some meadows are steep and will require good traction to complete treatments. To restore the butterfly habitat, the Central Coast Ranger District is trying several different treatment methods to assess how to best control unwanted vegetation. Treatment methods include machine mowing, track mowing, and flail mowing. Tracked mowing is generally required where terrain or slope of the meadow or access into is such that tracks may be necessary to access or complete the mowing. Flail mowing is used when the desired result is a mow to ground, with occasional scraping exposing bare soil. Due to uneven ground, the maximum occasional height of vegetation post flail mow will be 2". Machine mowing is used when the desired result is a mowing height of 4". To assess how flail mowing impacts the unwanted vegetation, two different mowing regimes will be implemented, mowing to ground two times a year and mowing to ground once a year. The areas that will be mowed to ground two times a year, will be mowed in June and September/October. The areas that will be mowed to ground once a year will only be mowed in September/October. The machine and track mowing areas will only be mowed once (September 15th - October 15th). Area 8 has a steep slope that requires track mowing. The other machine mowing areas are track optional. To protect the butterfly habitat during flail mowing, no mow buffers will be placed around important nectar resources and activity areas. The mowing boundaries are flagged. No mowing shall occur outside of the boundaries. SEE DETAILED UNIT INFORMATION SHEET (DUIS) FOR SITE SPECIFIC TREATMENT NEEDS, and SITE SPECIFIC TREATMENT DATES and SEE PROJECT AREA MAPS FOR WORK SITE LOCATIONS. For this solicitation the government expects 2.5 acres of mowing with tracks required on equipment, 4.2 acres of machine mowing (tracks optional), and 16.4 acres of flail mowing. The Contractor shall furnish all labor, supervision, equipment, materials, transportation, supplies, (unless specified elsewhere as Government-furnished) and incidentals required to accomplish the work. Project Location and Description The project work area is located on the Siuslaw National Forest, Central Coast Ranger District - Oregon Dunes National Recreation Area (CCRD-ODNRA). Vicinity maps showing project location are attached. Project area maps will be available at the Central Coast/ODNRA District Office in Waldport upon request. Other information regarding specific units and accessibility are contained in the Detail Unit Information Sheet.

Division 01 -

General Requirements, Cleaning and Waste Management.