Attachment_J2_Drawings_Sheets_7thru8.4.pdf

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7.2

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CROSS SECTIONS

EXISTING GROUND

DESIGN GROUND

LEGEND

CUT

FILL

200'100'0'

0'

10'

20'

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8.1

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RDG-15-009

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PLAN VIEW

FLOW

CONTOUR INTERVAL = 2 FOOT

SIDE CHANNEL TO RECEIVE

0.75 FEET OF RIVERBED FILL

200'100'0'

PHASE 2 BOUNDARY

PRESERVATION AREA

FLOODPLAIN FILL

RIVERBED FILL

LEGEND QUANTITIES AND MATERIALS

ITEM QUANTITY

RIVERBED FILL

FLOODPLAIN FILL

3,830 CUBIC YARDS

66,170 CUBIC YARDS

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*FLOODPLAIN FILL = 61,900 EARTHWORK + 8,100 IMPORT -

3,830 RIVERBED FILL = 66,170 CUBIC YARDS

RIFFLE

RIFFLE WIDTH ~ 45'

EXCAVATE STREAMBED TO SUBGRADE ELEVATIONS. THE ENGINEER WILL CONFIRM WHETHER SUBGRADE EXCAVATION AND RIFFLE CONSTRUCTION ARE NECESSARY BASED ON OBSERVED SUBSTRATE CONDITIONS.

PLACE BOULDERS ON THE SUBGRADE. BOULDER SPACING SHALL BE VARIED AND BOULDERS MAY BE PLACED IN CLUSTERS. BOULDER PLACEMENT SHALL NOT BE LINEAR AND CONFIGURATION SHALL HAVE A

NATURAL APPEARANCE.

PLACE THE BOTTOM LIFT OF RIFFLE MATERIAL. RIFFLE MATERIAL SHALL COMPLY WITH THE GRADATION

FOR RIVERBED FILL.

COMPACT THE BOTTOM LIFT OF RIFFLE MATERIAL USING WEIGHT OF EQUIPMENT OR BUCKET COMPACTION.

WASH WATER AND FINES INTO THE LIFT TO FILL VOIDS.

PLACE THE TOP LIFT OF RIVERBED FILL LOOSELY ON TOP OF THE FIRST LIFT AND GRADE TO FINISHED ELEVATIONS. DO NOT COMPACT OR TRACK EQUIPMENT OVER THE TOP LIFT OF RIFFLE MATERIAL.

WASH WATER AND FINES INTO THE TOP LIFT TO FILL VOIDS.

BOULDERS AND LARGE RIVERBED FILL MAY PROJECT ABOVE THE TOP LIFT UP TO SIX INCHES.

CONSTRUCTION NOTES

RIFFLE CONSTRUCTION

PROFILE VIEW NTS

THE PURPOSE OF THIS STRUCTURE IS TO PROVIDE VERTICAL STABILITY BETWEEN POOLS AND/OR MEANDER BENDS. THE STRUCTURE IS COMPOSED OF A WELL-GRADED MIX OF ALLUVIAL SUBSTRATES THAT REPLICATE NATURAL STREAMBED MATERIALS. A BOULDER FRAMEWORK MAY BE ADDED TO PROVIDE ADDITIONAL

STABILITY.

DESIGN INTENT

1.5'

FLOW 2

RIVER RIGHT BANK

RIVER LEFT BANK

TOP OF BANK (BANKFULL ELEVATION)

LIFT 1

LIFT 2

FLOW

RIFFLE CONSTRUCTION

PLAN VIEW NTS

ITEM DIAMETER (IN) QUANTITY

BOULDERS 18 - 36

MATERIAL SCHEDULE (PER LINEAR FOOT)

0.5 CY2

A'

A

TOP OF BANK WATER SURFACE

90 - 100 50 - 80

18-INCH

12-INCH

6-INCH

3-INCH

SIZE

CLASS

PERCENT

PASSING

30 - 50

10 - 302-INCH

RIVERBED FILL

GRADATION

0SAND

RIVERBED FILL SEE GRADATION 2.2 CY3

BOTTOM LIFT

A - A' 5'2.5'0'

TOP LIFT

A - A' 5'2.5'0'

0.75'

TOP OF BANK WATER SURFACE

BANK STRUCTURES

(TO BE INSTALLED

IN FUTURE PHASES)

TOP LIFT

BOTTOM LIFT

3 3

0.75'

0.75'

8.2

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PROJECT NUMBER

RDG-15-009

BANK STRUCTURES

(TO BE INSTALLED

IN FUTURE PHASES)

*IT IS ANTICIPATED THAT APPROXIMATELY HALF OF THE RIFFLES WILL REQUIRE BOULDER PLACEMENT ONLY*

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8.4

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PLAN VIEW

200'100'0'

FLOW

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PROJECT NUMBER

RDG-15-009

CROOKED RIVER ROAD

DESIGN CHANNEL ALIGNMENT CONSTRUCTION LIMITS

LARGE WOOD STRUCTURE

TYPE 1 SCHEDULE

STATION

START

STATION

END

74+45 75+45 78+45 79+50 82+70 83+45 84+35 87+10 87+85 88+75 92+45 93+30 94+50 97+65 98+50 99+50

102+65 103+50

74+65 75+75 78+65 79+80 82+90 83+75 84+65 87+30 88+15 89+05 92+65 93+60 94+80 97+85 98+80 99+80

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LEGEND

CHANNEL FEATURES

LARGE WOOD

STRUCTURE TYPE 1

LOCATION

L R R L R L R R R L R R L L R R L L

FIELD-FIT LARGE WOOD STRUCTURES PER

ALIGNMENT SHIFT NOTED ON SHEET 5.0.

NOTE: STRUCTURE LOCATION MAY BE FIELD FIT

BY GOVERNMENT AFTER COMPLETION OF RIVER

CHANNEL CONSTRUCTION