EW_PerfReq.pdf

Tree Thinning, Three Rivers Ranger District Performance Requirements AG-05G1-S-14-0021 Colville National Forest Service Page 1 of 4

EAST WEDGE PERFORMANCE REQUIREMENTS

Stand Description

Sub Item No.

Unit

Acres

Elevation (Feet)

Slope Estimat e

Approx.

Number of Leave Trees Per Acre

Average Spacing (Feet)

Max

DBH

Cut Limit in Inches

Additional Info. & Slash Treatment (Also See

Project Maps)

A.1 East Wedge

16 2800 0-35 170 16x16 <6” for LP and <7” all other species

1,3,6,8,9,10,11,15

A.2 East Wedge

36 3400 36-55 170 16x16 <6” for LP and <7” all other species

1,3,5,7,8,9,10,11,13,14

A.3 East Wedge

12 3300 36-55 134 18x18 <6” for LP and <7” all other species

1,3,4,5,8,9,10,11,15

A.4 East Wedge 806 A&B

43 3300 36-55 134 18x18 <6” for LP and <7” all other species

1,3,4,5,8,9,10,11,15

A.5 East Wedge

21 3000 >55 variable 16x16 <6” for LP and <7” all other species

1,3,5,7,8,9,10,11

A.6 East Wedge

23 2900 0-35 134 18x18 <6” for LP and <7” all other species

1,3,6,7,8,9,10,11

A.7 East Wedge

35 3200 36-55 134 18x18 <6” for LP and <7” all other species

1,3,6,8,9,10,11,14,15

A.8 East Wedge

21 2900 36-55 170 16x16 <6” for LP and <7” all other species

2,3,4,6,8,9,10,11

B.1 East Wedge

27 2900 0-35 134 18x18 <6” for LP and <7” all other species

1,3,4,5,7,8,9,10,11,13,14

B.2 East Wedge

21 2700 0-35 134 18x18 <6” for LP and <7” all other species

1,3,5,8,9,10,11,13,14

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B.3 East Wedge

5 3400 36-55 134 18x18 <6” for LP and

<7” all other species

1,3,4,6,8,9,10,11,14

B.4 East Wedge

30 3000 36-55 134 18x18 <6” for LP and <7” all other species

1,3,4,5,8,9,10,11,14,15

B.5 East Wedge

15 3100 0-35 134 18x18 <6” for LP and <7” all other species

1,3,4,5,8,9,10,12,15

B.6 East Wedge

13 3200 0-35 134 18x18 <6” for LP and <7” all other species

1,3,5,8,9,10,12,15

B.7 East Wedge

37 3300 0-35 170 16x16 <6” for LP and <7” all other species

1,3,5,7,8,9,10,11,13,14

B.8 East Wedge

6 3700 0-35 variable 16x16 <6” for LP and <7” all other species

1,3,6,8,9,10,11

B.9 East Wedge

19 3600 >55 variable 16x16 <6” for LP and <7” all other species

1,3,5,8,9,10,11,14,15

B.10 East Wedge

7 3100 36-55 170 16x16 <6” for LP and <7” all other species

1,3,4,5,7,8,9,10,11,14

B.11 East Wedge

13 2900 0-35 170 16x16 <6” for LP and <7” all other species

2,3,5,8,9,10,11,15

B.12 East Wedge

24 2700 0-35 170 16x16 <6” for LP and <7” all other species

2,3,6,7,8,9,10,11,14,15

B.13 East Wedge

6 2900 36-55 170 16x16 <6” for LP and <7” all other species

1,3,5,8,9,10,11

B.14 East Wedge

28 2500 36-55 134 18x18 <6” for LP and <7” all other species

1,3,4,5,7,8,9,10,11

BOUNDARIES – All boundaries are marked with black and orange striped flagging and white tags.

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All stem densities vary from dense thickets to small openings less than one acre in size. The quoter is advised to visit the work sites to determine average cut trees per acre prior to submitting a quote. The quoter is responsible for determining the amount of work.

Species abbreviations are as follows: DF = Douglas-fir, ES = Engelmann Spruce, LP = Lodgepole Pine, PP = Ponderosa Pine, AF = Sub-Alpine Fir, GF = Grand Fir, RC = Western Red Cedar, WH = Western Hemlock, WL = Western Larch, WP = Western White Pine, PY = Pacific yew, BC= Black Cottonwood, QA= Quaking Aspen and PB = Birch species.

1/ Leave trees by preference are as follows: PP, WL, DF, LP, RC, AF, WH, and GF. {Ignore all WP and PY.}

2/ Leave trees by preference are as follows: WP, PP, WL, DF, LP, RC, AF, WH, and GF.

3/ Leave all single ES of good form, unless such a tree is within 8 feet of another ES.

4/ Within 50 feet of the centerline of a stream channel, marsh or lake shift species preference to RC, WH, WP, PP, WL, DF, AF, LP, and GF {Do not cut any hardwood or brush species}. Do not cut or pile within 15 feet of stream channel.

5/ No Hardwoods or brush species shall be cut.

6/ All alder and PB greater than 1 foot tall and less than 6 inches DBH will be cut 4 feet around WL leave trees.

7/ Clear all conifers <6” for LP and <7” all other species, except WL and WP, within QA stands or within 30 feet of a QA stand. A QA stand is defined as having five or live aspen trees greater than 10 feet tall within 15 feet of each other.

8/ Lop and scatter required when slash accumulations exceed 2 feet in depth. Slash will be cut in to lengths of 5 feet or less. Slash shall be pulled back 2 feet from unit boundaries, streams, trails and 6 feet from fences.

9/ Stump heights must not exceed 6 inches.

10/ Minimum required tree height for cutting is 1 Foot.

11/ Leave no cut trees hung up.

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12/ Leave a maximum of 2 leaning or hung up trees ( >4” DBH and >20’ long @ 30-60 degree angle) per acre for Great Grey Owl escape trees. All other trees must not be hung up.

13/ Hand pile or grapple pile all slash within 150 feet from open road. Piles must be located at least 6 feet from leave trees and be a minimum of 4 ft x 4 ft x 8 ft in size with waterproof paper covering to top 1/3 of pile with material placed on top to prevent loss of paper due to wind.

14/ Retain a 10-foot wide live vegetation screen along open roads or within the unit that disrupts viewing into unit.

15/ Retention patches.