Attachment_J5_PlantingDesign.pdf

CROOKED RIVER VALLEY REHABILITATION PLANTING PLAN PHASE 4

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DRAWING INDEX

1.0 TITLE SHEET

2.0 REHABILITATION/STAGING PLAN

3.0 SUMMARY OF QUANTITIES/SPECIFICATIONS

4.0 SITE PLAN

4.1 SITE PLAN

4.3 SITE PLAN

5.2 FLOODPLAIN/SIDE CHANNEL PLANTING TYPCIAL

CROOKED RIVER VICINITY MAP

PROJECT DESCRIPTION

THE PURPOSE OF THE CROOKED RIVER VALLEY PLANTING IS TO REPLANT APPROXIMATELY 16 ACRES OF FLOODPLAIN THAT WAS RESTORED BETWEEN 2015-2019 AS A PART OF THE CROOKED RIVER VALLEY REHABILITATION PROJECT. THE OVERALL PROJECT PURPOSE IS TO ADDRESS THE IMPACTS OF HISTORIC MINING ON HABITAT FOR SALMON AND STEELHEAD, AND OTHER FISH SPECIES IN CROOKED RIVER. THE CROOKED RIVER PLANTING PLAN WILL BE COMPLETED IN CONJUNCTION WITH THE CROOKED RIVER VALLEY REHABILITATION PHASE 4 CONTRACT, BUT THE WORK WILL OCCUR AFTER PHASE 4 IS COMPLETE.

THIS PROJECT SPECIFICALLY INVOLVES PLANTING APPROXIMATELY 16 ACRES OF FLOODPLAIN WITH

ROOTED-STOCK PLANTS RANGING FROM 8-GALLON TO 2-GALLON IN SIZE.

PROJECT PARTNERS

Bonneville Power Administration 905 NE 11th Ave Portland, OR 97208

USDA Nez Perce- Clearwater National Forests 903 3rd Street Kamiah, ID 83536

Nez Perce Tribe DFRM-Watershed PO Box 365 Lapwai, ID 83540

GENERAL NOTES

1. DIMENSIONS ARE IN FEET AND ACRES.

2. BASEMAPS ARE AERIAL IMAGERY TAKEN IN OCTOBER 2019 (POST CONSTRUCTION PHASE 3) AND OCTOBER

2020 (POST CONSTRUCTION PHASE 4).

3. LENGTHS OF BANK PLANTING IN BANK TREATMENTS ARE BASED ON THE CROOKED RIVER VALLEY REHAB.

PHASE 3 LENGTHS (Sheets 5.0-5.3).

4. ALL EXISTING CONDITIONS ARE TO BE VERIFIED IN THE FIELD PRIOR TO PLANTING. OVERALL AREAS MAY VARY POST CONSTRUCTION OF PHASE 4 AND ANY ADJUSTMENTS TO THE DRAWINGS SHALL BE MADE AS

DIRECTED BY THE CONTRACTING OFFICER.

5. THE CONTRACTOR IS RESPONSIBLE FOR NOTING THE CONDITIONS OF THE PLANTS WHEN THEY ARRIVE ON

SITE, AND SHALL PROTECT ALL PLANTS FROM BREAKAGE AND DRYING OUT.

6. THE CONTRACTOR SHALL WATER THE PLANTS, AS NEEDED, IN THE POTS WHEN THEY ARRIVE ON SITE. ALL PLANTS SHALL BE WATERED WITHIN 24 HOURS OF PLANTING IN THE GROUND IF THEIR ROOTS ARE NOT IN

DIRECT CONTACT WITH WATER.

7. PLANTS SHALL NOT BE PLANTED TO WHERE THE EXISTING SOIL LEVEL IN THE CONTAINER EXCEEDS THE SURROUNDING SUBSTRATE AND SUBSTRATE SHALL NOT EXCEED 1” ABOVE THE PLANT ROOT COLLAR.

8. THE CONTRACTOR SHALL PROTECT ALL EXISTING NATIVE VEGETATION WITHIN THE PROJECT EXTENTS.

9. THE CONTRACTOR SHALL PROCURE AND COMPLY WITH PERMITS, INCLUDING FEDERAL, STATE, COUNTY, AND LOCAL PERMITS.

10. PLANTING PLAN IS TO BE FULLY COORDINATED WITH THE CROOKED RIVER VALLEY REHABILITATION PHASE 4.

11. Access routes shall be decommissioned upon completion of the planting. Large rocks and boulders shall be placed along the south end of the project area to deter access to the floodplain.

Sheet 1.0

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SCOPE

1. COORDINATION AND DELIVERY OF PLANTS FROM NURSERY TO

PROJECT SITE BY CONTRACTOR.

2. PLANT CARE AND WATERING.

3. PLANTING WITHIN 2 DAYS OF DELIVERY TO THE PROJECT SITE.

4. COORDINATE WITH ALL CROOKED RIVER VALLEY PHASE 4

REHABILITATION OPERATIONS.

CONSTRUCTION SEQUENCING

1. MOBILIZE EQUIPMENT

2. ESTABLISH STAGING AREAS AND SITE ACCESS

3. PICK UP PLANTS AT NURSERY, DELIVER TO THE SITE, OFF-LOAD IN STAGES

4. INSTALL PLANTS

5. WATER PLANTS IN POTS, AS NEEDED AND WITHIN 24 HOURS OF PLANTING,

6. STACK POTS AND LEAVE AT STAGING AREA

7. ROUGHEN ACCESS AREAS AND MOVE BOULDERS WHERE NEEDED TO PREVENT

FUTURE FLOODPLAIN ACCESS

8. DEMOBILIZE EQUIMENT

ACCESS AND STAGING

Access is provided to the planting area at the south end of the project site. The Contractor will be able to traverse the floodplain where the floodplain was left less roughened.

EXISTING CONDITIONS

THE CROOKED RIVER VALLEY PROJECT AREA WAS HISTORICALLY DREDGE MINED, WHICH LEFT THE RIVER IN A TORTURED MEANDER PATTERN, WITH TAILING PILES AND PONDS THROUGHOUT THE FLOODPLAIN. CONSTRUCTION IN THE PROJECT AREA BEGAN IN 2015 AND CONTINUED THROUGH 2019. APPROXIMATELY 32 ACRES OF FLOODPLAIN WAS RE-GRADED AND 7,500 FEET OF NEW RIVER CHANNEL WAS CONSTRUCTED TO FORM A MORE NATURAL MEANDER PATTERN. THE FLOODPLAIN WAS CONSTRUCTED TO BE INUNDATED AT THE 1.5 YEAR FLOW RETURN INTERVAL. A BYPASS CHANNEL WAS CONSTRUCTED ALONG THE WEST SIDE OF THE PROJECT AREA TO HOLD THE RIVER DURING CONSTRUCTION. PHASE 4 IS THE REMOVAL OF THE BYPASS CHANNEL AND CONSTRUCTION OF THE UPPER FLOODPLAIN. THE PHASE 4 AREA IS APPROXIMATLEY 16 ACRES.

THE PURPOSE OF THE PROJECT IS TO RESTORE HABITAT FOR CHINOOK SALMON AND STEELHEAD, ALONG WITH OTHER RESIDENT FISH SPECIES AND AQUATIC ORGANISMS. THE RIPARIAN PLANTING PORTION OF THE PROJECT WILL BE IMPLEMENTED IN CONJUNCTION WITH THE INSTALLATION OF BANK STABILITY STRUCTURES AND FLOODPLAIN ROUGHNESS. LARGE PLANTS WILL BE PLANTED TO PROMOTE QUICKER RECOVERY OF THE RIPARIAN AREAS AND PROVIDE STREAM SHADE WITHIN THE NEXT 5 YEARS.

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CONTAINER SIZE AND WEIGHT PLANT QUANTITIES

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NOTES:

1. The side channel and channel along the new stream shall be planted with 591 5-gallon and 2- gallon thin leaf alders (A. incana) and Drummond willows (S. drummondiana) per specification on Sheet 5.0, using the trench planting method. A maximum bucket size of 1-foot wide shall be used to dig side channel trenches.

2. The floodplain shall be planted with mechanical equipment, digging 4,129 single holes for 8- and 2-gallon plants. Backfilling shall be done by hand to prevent damage to the plants.

3. All plants shall be tamped in and watered to eliminate air around the roots.

4. All plants shall have their roots planted vertically. Substrate shall not exceed 1” above the root collar and soil from the pots shall not exceed the height of the surrounding substrate. Small wells around the plants on the floodplain are acceptable, but not in trench planting.

5. Metal trays and plant containers shall be maintained in good conditions and returned to the Nursery. Wood pallets shall be stockpiled at the staging area to be disposed of by the Government.

GENERAL:

The Crooked River Valley Rehabilitation Planting Design shall be used in conjunction with the Crooked River Valley Rehabilitation Phase 4 Design (RDG 2019). Floodplain areas were delineated with GIS based on aerial imagery and in conjunction with the Phase 4 designs.

The plants for the Crooked River Valley Rehabilitation planting project have been pre-purchased through Wildland Habitat Nursery and are Government Furnished Property. The pots remain the property of Wildland Habitat Nursery and shall be returned in good condition. The Contractor shall arrange pickup and delivery of the plants. It is the responsibility of the Contractor to ensure plants are handled with care upon pickup and until the project is complete.

The Contractor will be planting in large cobble substrate. Soil has been stockpiled on the floodplain that will be spread in conjunction with micro-topography. Plants shall arrive on site a maximum of 2 days prior to planting Plants not planted within 48 hours shall be watered at their staging area. A minimum of 2, 1” pumps are required on site for watering plants. All plants shall be watered thoroughly within 2 days of planting. Additional pumps may be required to ensure all plants are adequately watered.

Wildland Habitat Nursery Denny Dawes 1025 E. Hatter Creek Rd Princeton, ID 83857 Office- 208-875-2500 Cell- 208-669-1050 Email- wild@potlatch.com

NURSERY INFORMATION

Example of 8-gallon plants Example of floodplain roughness

Container Size

Plant Per Tray/Pallet*

Root Dimension

Volume Fluid Oz

Weight Filled H20

2- Gallon 42 6” x 16” 2 gal 256 16 lbs

Tall 5 -Gallon 25 10” x 18” 4.7 gal 602 37.6 lbs

Tall 8-Gallon 19 11” x 24” 8.0 gal 1024 64 lbs

* Spruce per pallet will be less

Container Size Quantity

2- Gallon 4342

5 gallon 100

8 Gallon 278

Total 4,720

Species and Size Total

Thin-leaf Alder 2G 522

Thin-leaf Alder 5G 100

Thin-leaf Alder 8G 205

Black Cottonwood 8G 73

Drummond Willow 2G 470

Geyer Willow 2G 500

MacKenzie Willow 2G 250

Snowberry 2G 200

Engleman spruce 2G 500

Douglas Fir 2G 550

Grand Fir 2G 550

Lodgepole Pine 2G 200

Rocky Mnt Maple 2G 200

Hawthorn 2G 400

Total 4,720

PLANT SPECIES

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Sheet 4.0

NOTE:

Depressions, high terraces, and edges of project area are dependent upon final construction of Phase 4. The areas are approximations in size and location.

Plants shall clumped into natural groups rather than spaced evenly. Depressions, 2.5 feet deep or less, can be planted with Low Floodplain plants throughout.

Depression greater than 2.5 feet deep shall only be planted around the edges.

Plant Zone Area Species

Trench Planting 459 ft Alder, Drummond willow

Low Floodplain 2.83 Alder, Cottonwood, Spruce, Geyer willow

Upper Floodplain 1.9

Doug fir, MacKenzie willow, Grand Fir, Rocky Mountain

Maple, Hawthorn

High Terrace 0.41 Lodgepole pine, Snowberry, Douglas fir

Preservation 0.3 NA

Total 5.44

PLANT SCHEDULE

Area Species SIZE # Notes

Trench Alder 5-gallon 100 Approx 2.3 ft spacing

Drummond Willow 2-gallon 100 Approx 2.3 ft spacing

Total 200

Low

Floodplain/Depre ssion

Geyer Willow 2 gallon 175 Areas without flowing water

Alder 2 gallon 200

Cottonwood 8 gallon 50

Alder 8 gallon 125

Spruce 2 gallon 175

Grand Fir 2 gallon 75 Floodplain away from river edge

Total 800

Upper Floodplain

Doug Fir 2 gallon 100

MacKenzie Willow 2 gallon 100 Drier areas without flowing water

Grand Fir 2 gallon 75

Rocky Mountain Maple 2 gallon 75

Hawthorne 2 gallon 150

Total 500

High Terrace

Lodgepole pine 2 gallon 60

Snowberry 2 gallon 60

Doug Fir 2 gallon 50

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Sheet 4.1

Plant Zone Area Species

Trench Planting 1026 ft Alder, Drummond willow

Low Floodplain 2 Alder, Cottonwood, Spruce, Geyer willow

Upper Floodplain 2.2

Doug fir, MacKenzie willow, Grand fir, Rocky

Mountain Maple, Hawthorn

High Terrace 0.4 Lodgepole pine, Snowberry

Total 4.6

PLANT SCHEDULE

Area Species SIZE # Notes

Trench Alder 2-gallon 171 Apprx 2.5 ft spacing

Drummond

Willow 2-gallon 220 Apprx 2.5 ft spacing

Total 391

Low

Floodplain/Depr ession

Geyer Willow 2 gallon 155 Areas without flowing water

Alder 2 gallon 79

Spruce 2 gallon 150

Grand Fir 2 gallon 80

Floodplain away from river edge

Total 454

Upper floodplain

Doug Fir 2 gallon 170

MacKenzie

Willow 2 gallon 125

Drier areas without flowing water

Grand Fir 2 gallon 100

Rocky

Mountain Maple 2 gallon 60

Hawthorne 2 gallon 150

Total 605

High Terrace

Lodgepole pine 2 gallon 70

Snowberry 2 gallon 70

Total 140

NOTE:

Depressions, high terraces, and edges of project area are dependent upon final construction of Phase 4. The areas are approximations in size and location.

Plants shall clumped into natural groups rather than spaced evenly. Depressions, 2.5 feet deep or less, can be planted with Low Floodplain plants throughout. Depression greater than 2.5 feet deep shall only be planted around the edges.

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Plant Zone Area Species

Low Floodplain 2 Alder, Cottonwood, Spruce, Grand fir, Geyer willow

Upper Floodplain 1.6

Doug fir, MacKenzie willow, Grand fir, Rocky Mountain Maple, Hawthorn

High Terrace 0.85 Lodgepole pine, Snowberry, Doug fir

Total 4.45

PLANT SCEHDULE

Area Species SIZE # Notes

Low

Floodplain/Depressi on

Geyer Willow 2 gallon 170 Areas without flowing water

Alder 2 gallon 80

Cottonwood 8 gallon 23

Alder 8 gallon 80

Spruce 2 gallon 175

Grand Fir 2 gallon 75 Floodplain away from river edge

Drummond willow 2gallon 150 River edge and lower floodplain areas

Total 753

Upper floodplain

Doug Fir 2 gallon 170

MacKenzie Willow 2 gallon 25 Drier areas without flowing water

Grand Fir 2 gallon 145

Rocky Mountain

Maple 2 gallon 65

Hawthorne 2 gallon 100

Total 505

High Terrace Lodgepole pine 2 gallon 70

Snowberry 2 gallon 70

Doug fir 2 gallon 60

Total 200

NOTE:

Depressions, high terraces, and edges of project area are dependent upon final construction of Phase 4. The areas are approximations in size and location.

Plants shall clumped into natural groups rather than spaced evenly. Depressions, 2.5 feet deep or less, can be planted with Low Floodplain plants throughout. Depression greater than 2.5 feet deep shall only be planted around the edges.

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Sheet 5.0

Water Line

TRENCH PLANTING DETAILFLOODPLAIN PLANT SPACING TYPICAL

*not to scale *Example of plant spacing. Not to scale. Species do not need to be grouped in order shown in typical.

Note:

A 1 foot bucket shall be used to excavate trench. Place fill on backside of channel. Place plant along channel side of trench.

Backfill with excavated material.

Tamp down fill material and water in plant to remove all air pockets.

Excavated Material

18”

*Floodplain typical from Crooked River Valley Rehabilitation Phase 3 Designs (RDG 2019). Example for plant spacing only.

NOTES:

1. Single hole planting with a 12” auger shall be used on the floodplain.

2. Plants shall be planted so the roots are vertical.

3. Excavated material shall be backfilled by hand, tamped down, and each plant within 48 hours of planting watered to ensure interstitial spaces are filled.

4. Substrate shall not exceed 1” above root collar on plant and height, with the exception of willow species, and soil from the pot shall not exceed the surrounding substrate. Shallow “wells” around the plants are acceptable.

5. Single hole plant spacing is approximately XX feet, however plants are not to be spaced evenly. See plant spacing typical for example. This spacing does not take into consideration the planting along the river banks or side channel.

6. Floodplain micro-topography is included in Phase 4 plans. Refer to Phase 4, Sheet 6.4 for additional detail.

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