Thursday, February 9, 2017

Green Diamond Resource Company to clearcut log near the Highway 299 Coast Range Summit.


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THP 1-17-002 HUM (Miller Prairie THP) Green Diamond Resource Company, 211 acres; 36% clearcut, 29% commercial thin, 15% selection, 15% no-harvest, 6% rehab logging.  Long Prairie Creek (HUM: T6N R2E Sec.1, 2, 11, 12; T6N R3E Sec.6; T7N R2E Sec.36).  Wet weather operations, moderate erosion hazard, steep slopes over 70%, steep roads, landslide terrain, road failure sites, 33 road drainage work sites, impaired 303.d watershed, herbicides, coho watershed, spotted owl, northern red legged frog, trees over 40" dbh.  Estimated public comment deadline: 02/20/17. VIEW

This THP is about 8 miles NE of Arcata, CA near the Highway 299 coast range summit at an elevation of 550 to 1,740 feet.  Green Diamond Resource Company is planning a tractor and cable logging operation on steep and unstable slopes in redwood and Douglas fir forests.  The THP area flows into the Mad River which was listed as an impaired watershed for sediment, turbidity and temperature.  There are multiple road failure sites including fill slope failures, cut bank failures, bank sloughing, gullying and erosional voids near crossings.  19 unstable areas are located in the THP area including; 3 shallow rapid landslide terrain sites along the northern boundary of unit A, 1 shallow rapid landslide terrain site along the NW boundary of unit A, 2 small roadside fill failures off the K&K 92 Road, 4 shallow rapid landslide terrain sites along the western boundary of unit A, 1 shallow rapid landslide terrain site along the central portion of unit B, 1 shallow rapid and 1 deep seated landslide terrain sites along the SE boundary of unit B, 1 shallow rapid landslide terrain site in the western portion of unit D, 1 deep seated landslide terrain site in the northern central portion of unit B, 1 shallow rapid landslide terrain site in the eastern portion of unit D, 1 deep seated landslide terrain site in the central portion of unit E, 1 deep seated landslide terrain site in the eastern portion of unit E, and a 1 deep seated landslide terrain site in the NW portion of unit E.  Green Diamond Resource Company is planning to use ground based equipment in areas designated for cable logging in unit A, and use a short segment of seasonal road inside unit B within a class I (year round) watercourse area.  They also want to use ground based equipment in unstable areas on 3.3 acres of deep seated landslide terrain within unit D, and on unstable areas on the K&K 90 and K&K 92 Roads.  Over 600 feet of temporary road is proposed for construction on steep slopes over 65% grade, and 3 segments of road are proposed for construction with average grades exceeding 15%, including grades over 20% for 500 feet.  33 road drainage sites are planned for work including rocking, dip construction, ditch cleaning, culvert repair/ replacement and restoration of washed out crossings and sink holes.  There are 12 spotted owl nesting territories within 1.3 miles of the THP area including, spotted owl nesting territories within .25 miles of units B, E and F, and within .5 miles of units A, C and D.

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