2
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Harvest Plan Map Cooper Creek Lendrum Creek 407-1 Cedar …...HARVEST PLAN: CP 407 - Block 1 Riparian Assessment: Block Riparian I.D. and Class HU RMA Width Machine Free Zone Width

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Page 1: Harvest Plan Map Cooper Creek Lendrum Creek 407-1 Cedar …...HARVEST PLAN: CP 407 - Block 1 Riparian Assessment: Block Riparian I.D. and Class HU RMA Width Machine Free Zone Width

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WTRA1.1ha

NP0.6haSpur1

Spur3

Spur 5

Spur2

NCD

NCD-

2

NCD-1

S6-2

NCD

NCD

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Harvest Plan MapLendrum Creek

407-1

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EE EE

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EEEE Gross Area: 24.0 ha

PAS - 1.1 ha

HU 1: Ground-Based Harvest - 14.9 ha NETEE

EE EE

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WTRA - 1.1 ha NETCooper Creek

Cedar Ltd.

SU Boundary

Existing CutblockWildlife Tree Retention AreaNP Brush

Slope and DirectionBench DrawCutblock Boundary

Existing Road Proposed RoadExisting Trail Yarder Trail

UTM Ref:Reach Break Wet Area

Creek Intermittent Creek

Station

Slope Break

î î î î î | | | | |

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NE

Split Line

?Wallow

Path: G:\PROJ\cooper_crk\CP407_Lendrum\Maps\HP\CP407_HP_Map_BLK1.mxd

Non-Merch

503027 5514463

Perm./Temp Access Licensee ConstructFalling Corner #

Skid Direction

12 FC2

Drawn By:Mapsheet: 82F.076

Elevation (min / max): Gully

SjMCliffì ì ì ì ì

Date: 6/26/2018

MFZ (5m) RMZ Tower Settings

Temp. Landing

Prop. Skid Crossing!D

Rock #Steep Slopes >35%

Perm. Landing

Intermediate Structure !IS

Existing Landing E P

T

Yarding Direction/

*

Cable

Boulder CC1290-1510m

Skid Bridge à

Private Land25%

Culvert Location

Proposed Existing

989898989898

450mm500mm

600mm800mm1000mm1400mm

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450mm500mm

600mm800mm1000mm1400mm

1:5,000UTM - Datum NAD83

Declination: 15' E

0 100 m

ÕTrue N

orth

Magn

etic N

orth

Nelson, BC

NP Brush - 0.6 ha

à

HU 2: Cable-Based Harvest - 6.3 ha NET

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Page 2: Harvest Plan Map Cooper Creek Lendrum Creek 407-1 Cedar …...HARVEST PLAN: CP 407 - Block 1 Riparian Assessment: Block Riparian I.D. and Class HU RMA Width Machine Free Zone Width

HARVEST PLAN: CP 407 - Block 1

Riparian Assessment:

Block Riparian I.D. and Class HU RMA

Width Machine Free Zone Width

% of basal area (m2/ha) Retained Comments (Not within a Community watershed)

1 S6-1 2,

WTRA RMZ 20m N/A 70 - 80% 20m RMZ: 70 - 80% of the basal area will be retained within the 20m RMZ inside the

WTRA. Portions of the 20m RMZ that fall within the block will be harvested as per HU 2.

S6-2 2, WTRA

RMZ 20m N/A 5 - 10% 20m RMZ: 5 - 10% of the basal area will be retained within the 20m RMZ inside the WTRA. Portions of the 20m RMZ that fall within the block will be harvested as per HU 2.

NCD-1, 2 2 N/A N/A N/A None 1. Trees must be felled and yarded away from all riparian features (e.g. streams, NCDs) where practicable. 2. Keep machinery at least 5m away from all riparian features. 3. All natural drainage patterns (including all NCD’s, streams, dry swales, roadside ditching) should be maintained and left free of excess debris (slash or soil) that could result in

a redirection of seasonal surface runoff. Safety Highlights: Steep Slopes: HU 2, and parts of ground-based area (HU 1), exceed 35% side slopes. Limit machine use on slopes as per WorkSafe BC OHS regulation Part 26-16 (slope limitations). A steep slopes map has been provided showing areas of the block with slopes >35%. Rock Fall Hazard: Where workers are required to be down slope of steep slopes, appropriate measures must be taken to reduce the risk of impact from loose rock or minor rockfall, which may occur naturally or as a result of disturbance from harvesting operations. Potential Public Use of Road System: The road system associated with this development is used by hunters, campers, hikers, other recreationalists and local residents. Place signs at the start and end of the block during harvesting that indicate active harvesting. Operations must be conducted to ensure the safety of the public using these road systems. Discuss public use of the roads during the pre-work.

Leave Tree Specifications: Table 1. - Layer 1 Reserved Timber Table 2. - Other Reserved Timber

Block HU Selection Priority Species

Size Stems per Hectare Distribution1 Non-Merchantable DBH Class (cm)

Target Min Max S G I R Block HU Location(s) Species Size

(Layer)

Stems per Hectare

1 - - - - - - - x x x Target Min

1 - not applicable - - - 0

Dead Trees to be Stubbed (where Mechanical Falling is utilized)

Block HU Species Size Stubbing Height

Stems per Hectare Distribution1

Additional Requirements: 1) No mature leave trees are planned in block 1.

Target Min Max S G I R

1 1 Any >=12.5cm 3-5m 3 0 5 x x x Additional Requirements: Selection priority is for trees with signs of wildlife use (e.g.: cavity nests, holes, and dens) and veteran stems. Preference to be given to larger diameter stubs (>=35cm DBH) and existing safe snags <5m tall. Coarse Woody Debris

Block HU Species Size m3/Hectare Distribution1 Target Min S G I R

1 1, 2 Any Logs >2m in length & 7.5cm diameter at one end. 2

15 10 X X X

Safety is a priority when conducting operations near reserved timber. 1 Distribution Types: S: Single Trees, G: Groups of Trees, I: Irregularly, R: Regularly; 2 Larger diameter CWD is preferred. Retain existing large (>=30cm DBH) CWD where operationally feasible.

HU 1: ground based harvest

HU 2: cable harvest

Harvesting Recommendations from Terrain Stability Assessment, Lendrum-Woodbury Creek (CP 407) Overview Assessment report by Perdue Geotechnical Services (June 26, 2018):

• Ground skidding across natural drainage paths and surface watercourses should be avoided. If this cannot be avoided, harvesting should be conducted during the drier months of the year, on a compressed snowpack, or effort made to ensure timber is skidded butt-first to minimize potential ground disturbance within such drainage features.

• Timber harvesting should not be completed during excessively wet conditions, such as during the freshet and/or prolonged, heavy periods of rainfall. • A post-harvest inspection should be completed to ensure all natural drainage patterns have been maintained. Logging debris should be removed from the wetted

perimeter of all watercourses and subtle drainage features to ensure an accumulation of coarse woody debris or site degradation from logging operations does not result in a drainage diversion. These measures include ensuring the drainage network along permanent roads remains functional, as intended.

• Temporary access trails may be built using debris-supported fill slopes (where required) to reduce cut bank excavation and the potential for groundwater interception. Drainage control measures must be implemented to ensure all natural drainage paths are maintained. All trails must be fully rehabilitated concurrently with the completion of the proposed timber harvesting. If harvesting is to be conducted during winter months, trails must be seasonally deactivated prior to the freshet by out-sloping where practical and installing cross ditches to maintain natural drainage patterns.

Spur 1: See Terrain Stability Assessment report above for general Road Recommendations. Road Information:

This road is considered permanent (>2 years).

• Spur 1 This road is 1+422m in total length. There are 3 (three) proposed 450mm culverts within block 1 @ hubs 4, 17, and 31.