AttachmentJ1_AppendixA.docx

Devil’s Creek IRSC Page 3 of 3 Appendix A

TECHNICAL SPECIFICATIONS FOR SERVICE WORK ITEMS

1.1 ACTIVITY ITEMS

A. CLIN 001 LEAVE TREE MARK UNITS (LTM): Fell, Skid, Pile Felling:

All trees are designated for cutting when meeting the minimum specifications for cutting as shown on the tables below and not selected as leave trees. All Appendix B provisions apply.

*Maximum stump height for non-sawtimber trees felled (all conifers > 5.6 inches stump diameter) is 6 inches.*

LEAVE TREE MARK (LTM) UNITS

1) Cut all dead conifer trees greater than or equal to 5.6 inch stump diameter

2) Cut all live PP from 5.6 inch stump diameter to 9.6 inch stump diameter

3) Cut live LP and other conifers from 5.6 inch stump diameter to 7.6 inch stump diameter.

Coarse Woody Debris: leave 3-5 logs/acre in full contact with the ground and not jackstrawed > 10 inches large end diameter, and ≥ 50 linear feet/acre.

3-5 dead trees/acre, meeting these requirements, may be felled and left in place to ensure requirements are met.

Skidding:

All cut trees are to be whole tree skidded to landings with exception of trees meeting the criteria for Coarse Woody Debris; and trees less than 5 inches DBH which may be hand piled within the Unit or piled at landings.

Pile at Landing:

Pile trees at landing for disposal by Forest Service. Pile specifications are stated in H.22 Slash Treatment B. CLIN 002 LEAVE TREE MARK: Biomass, Slash, Cleanup Thin Biomass Trees:

Thin biomass trees in Units 8, 10 *Maximum stump height for all conifers less than 5.0 inches DBH is 6.0 inches*

THINNING DIAMETER AND SPACING CRITERIA FOR LESS THAN 5.0” DBH

Slash Treatment and Landing Clean Up:

See Contract Section H.22 Slash Treatment for specifications.

C. CLIN 0003 DESIGNATION BY DAMAGE CLASS (DxDAM):Cut, Skid, Pile, Slash, Cleanup Felling:

All trees are designated for cutting when meeting the minimum specifications for cutting as shown on the tables below and not selected as leave trees. All Appendix B provisions apply.

*Maximum stump height for non-sawtimber trees felled (all conifers > 5.6 inches stump diameter) is 6 inches.*

DESIGNATION BY DAMAGE CLASS (DxDAM) UNITS

All cut trees are to be whole tree skidded to landings with exception of trees meeting the criteria for Coarse Woody Debris; and trees less than 5 inches DBH which may be hand piled within the Unit or piled at landings.

Pile at Landing:

Pile trees at landing for disposal by Forest Service. Pile specifications are stated in H.22 Slash Treatment Slash Treatment and Landing Clean Up:

See Contract Section H.22 Slash Treatment for specifications.

D. CLIN 0004 DESIGNATION BY SPACING (DxSPA): Cut, Skid, Pile Felling:

All trees are designated for cutting when meeting the minimum specifications for cutting as shown on the tables below and not selected as leave trees. All Appendix B provisions apply.

*Maximum stump height for non-sawtimber trees felled (all conifers > 5.6 inches stump diameter) is 6 inches.*

DESIGNATION BY SPACING (DxSPA) UNITS

Coarse Woody Debris: leave 3-5 logs/acre in full contact with the ground and not jackstrawed > 10 inches large end diameter, and ≥ 50 linear feet/acre. 3-5 dead trees/acre, meeting these requirements may be felled and left in place to ensure requirements are met.

All cut trees are to be whole tree skidded to landings with exception of trees meeting the criteria for Coarse Woody Debris; and trees less than 5 inches DBH which may be hand piled within the Unit or piled at landings.

Pile at Landing:

Pile trees at landing for disposal by Forest Service. Pile specifications are stated in H.22 Slash Treatment

E. CLIN 0005 DESIGNATION BY SPACING: Biomass, Slash, Cleanup Thin Biomass Trees:

Thin biomass trees in Units 9, and 91.

*Maximum stump height for all conifers less than 5.0 inches DBH is 6.0 inches*

THINNING DIAMETER AND SPACING CRITERIA FOR LESS THAN 5.0” DBH

Slash Treatment and Landing Clean Up:

See Contract Section H.22 Slash Treatment for specifications.

F. CLIN 0006 and 0007 ROAD MAINTENANCE:

Pre-haul, During-haul, and Post-haul road maintenance shall be performed to the standards and specifications in Appendix C, Road Maintenance Requirements.

2.2 TREE CHARACTERISTICS

For thinning of live conifer trees (CLIN 0002 & 0005):

2.2.1 – Desirable Leave Trees:

The largest trees will be retained, favoring the healthiest and best formed trees in the following order:

1. Engelmann Spruce

2. Ponderosa Pine

3. Douglas-Fir

4. Limber Pine

5. Lodgepole Pine

6. Subalpine Fir

7. Rocky Mountain Juniper

2.2.2 – Leave Tree Characteristics:

Trees with the following characteristics are examples of trees that may be retained as leave trees:

1. Has no apparent damage to the main bole;

2. Is not chlorotic (foliage is green, not yellow);

3. Demonstrates good vigor and is disease/bug free (no evidence of Mountain Pine Beetle);

4. Has at least 40% crown ratio

5. When Rocky Mountain Juniper will be left as leave tree, leave all stems that are attached to the same root collar. Root collar shall be defined as 3 inches above ground level.

Arapaho Roosevelt NF APPENDIX A Canyon Lakes RD