B.08_OWCMD22_DRAFT_PLANS.pdf

PDF 7 MB Posted Mar 24, 2022

Attached to: OR/WA Clamshell Maintenance Dredging 2022
Solicitation number: W9127N22B0011
Issued by: Department of the Army Corps of Engineers Engineering District Portland

About this file

Written by GovTribe AI · Dec 27, 2023

This pre-solicitation synopsis provides details for the OR/WA Clamshell Maintenance Dredging 2022 project to be solicited by the U.S. Army Corps of Engineers Portland District. The project includes mechanical dredging at four locations requiring removal of approximately 229,000 cubic yards of material as mandatory line items, with optional additions of 80,000 cubic yards. Locations include Port Orford and Skipanon River in Oregon, and Baker Bay and Chinook in Washington. Dredged material will be disposed of in a designated ocean site. A pre-solicitation conference will be held on April 7th, 2022 followed by solicitation on or around May 9th with bids due 30 days after advertisement. The procurement is set aside for small businesses with a NAICS code of 237990 and size standard of $30 million. In-water work windows provided for each location range from May 1st to October 31st for Port Orford, and August 1st to December 15th for the other three locations.

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File	Type	Posted
OWCMD22_ADV.pdf	PDF	May 3, 2022
22B0011-OR-WA_Clamshell_2022_Adv_Plans.pdf	PDF	May 3, 2022
B.08_OWCMD22_DRAFT_SPECS.pdf	PDF	Mar 24, 2022

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2 3 4 p

5 6

US ARMY CORPS

OF ENGINEERS

PORTLAND DISTRICT

7 8 9 10 11 12 13 14 15

SOLICITATION NO.: W9127N22B0011

KYMBERLY C. ANDERSON P.G.

CHIEF, OPERATIONS DIVISION

PATRICK L. DUYCK, P.E.

SIGNATURES AFFIXED HEREON INDICATE OFFICIAL

RECOMMENDATION AND APPROVAL OF ALL THE

DRAWINGS IN THIS SET

RONALD S. FLODIN, P.E.

OPERATIONS PROJECT MANAGER

CHANNELS AND HARBORS PROJECT

CHIEF, ENGINEERING AND CONSTRUCTION DIVISION

MICHAEL D. HELTON P.M.P.

COLONEL, EN

COMMANDING

DATE:

16 17 18 19 20

DRAFT

-1 �

I 2 I

PROJECT

LOCATIONS

3 I 4 I 5 I I�

BAKER BAY

I )CHINOOK

;�-SKIPANON , ..... -1 .:;._'\_

... 7

,j �

D PORT ORFORD

6 I 7 I 8 I 9

WASHINGTON

OREGON

I IDAHO

,... .. _,, _______ , ________ , ________ , _________ ,_, _____ r _______________ , ______ , _________

NEVADA

CALIFORNIA

10 I 11

OREGON AND WASHINGTON CLAMSHELL

MAINTENANCE DREDGING 2022

I 12 I 13 I

FILE DRAWING

NAME NUMBER

OWC-IND-000 1

OWC-POR-000 2

OWC-8B1-000 3

OWC-B82-000 4

OWC-CHK-000 5

OWC-SKP-000 6

OWC-DISP1-000 7

14 I 15 I 16 I 17

DRAWING

DESCRIPTION

INDEX SHEET AND VICINITY MAP

PORT ORFORD

PLANNING LAYOUT DRAWING

BAKER BAY SHEET 1 - RM 00+10+00 TO 01+50+00

PLANNING LAYOUT DRAWING

BAKER BAY SHEET 2- RM 01+50+00 TO 03+10+00

PLANNING LAYOUT DRAWING

CHINOOK-RM 00+40+00 TO 01+55+00

PLANNING LAYOUT DRAWING

SKIPANON RM 00+20+00 TO 01+35+00

PLANNING LAYOUT DRAWING

0-9.2-IW AND W-10.2-IW

PLACEMENT SITES LAYOUT DRAWING

I 18 I 19 I 20 ffl

US ARMY CORPS

OF ENGINEERS

PORTLAND DISTRICT

ww z- t- C) (.) z -o::w g:ou. C/) "0 -□ en □z c.. □<! o:: z..J 0 ::i�(.) t-0>- O::c..::ii: 0 0:: c..

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SHEET ID

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DWG 1 OF 7

ti:

Cl c..

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LJ..

LEAD

1647 K

1647 J

1647 N 1647 G

1647 T

1647 S

X 3,847,000

X 3,848,000

X 3,847,000

X 3,848,000

REFUSAL

DIG TO

ROCK AREA

ANTICIPATED

REFUSAL

DIG TO

ROCK AREA

ANTICIPATED

3847980.66 416175.52

3847627.30 416379.77

3848025.70 416253.44

3847706.08 416438.19

3847540.66 416750.60

3847628.30 416771.08

X COORDINATE Y COORDINATE

OF YOUR CONTRACT

SAFETY IS A PART

G H

F T

N.T.S.

1600 FT

16 FT

MAX DEPTH

AREA

STANDOFF

15 FOOT

STA. 00+07+50

DREDGE AREA

UPSTREAM LIMIT OF

STA. 00+00+00

DREDGE AREA

DOWNSTREAM LIMIT OF

00+03 +91

00+07 +50

GAGE

STAFF

**2 FT MAXIMUM DEPOSITION**

FLOOD

EBB

LEGEND

Primary Control Point

Coordinated Survey Points

Uncoordinated Survey Points

Dredging Ranges

River Mileage from Mouth

Front

Flow Arrows Straight

Harbor Lines

State Boundary

Benchmarks

Gages Staff Recording

Rear

Tidal

Aids to Navigation

Lighthouses

Lights Fixed Flashing, Occulting

Lighted Ranges Front Rear

Lighted Buoys

Unlighted Buoys Port Starboard Mid Channel Junction

Daybeacons Port Starboard

Seasonal Lights and Lighted Dredging Ranges

NOTES

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

S U

B M

E D

B Y

C H

E C

K E

D B

D R

A W

N B

D E

N E

D B

C O

N T

R A

C T

N O

S O

N N

U E

D A

T E

S I Z

M A

R K

D E

S C

N D

A T

US ARMY CORPS

OF ENGINEERS

PORTLAND DISTRICT

W N

U S

R M

Y C

O R

P S

O F

E N

E E

R S

P O

R T

L A

N D

T R

P O

R T

L A

N D

C H

A N

N E

L S

A N

D H

A R

B O

R S

P R

O J E

C T

O P

E R

A T

S D

D A

T S

-F

E B

-2

T E

N A

N C

E D

R E

D G

O R

E G

O N

A N

D W

A S

G T

O N

C L

A M

S H

E L

P O

R T

O R

F O

R D

PLACEMENT SITE

PORT ORFORD 404 NEAR SHORE

SEE DISPOSAL PLAN FOR ADDITIONAL DETAILS

X COORDINATE Y COORDINATE

415818.35

3847832.26 414165.41

3847718.07 415761.23

3848516.06

3848630.31 414222.53

COORDINATES

NEAR SHORE PLACEMENT

COORDINATES

DREDGING AREA

075' 75' 150' 225' 300'

SCALE IN FEET

STAFF GAGE: Northing: 416704 Easting: 3847547

Navigation Chart No. 18589 2009 Aerial Photography data source: U.S.D.A., Service Center Agencies Reference is existing at that time.

date indicated and can only be considered to represent the general condition The information depicted on this map represents the results of a survey conductedon the

Pacific Northwest River Basins Commission, June 1968.

River mileage conforms to the River Mile Index of the Hydrology and Hydraulics Committee, MLLW is 0.49 feet below the North American Vertical Datum (NAVD 88).

Soundings are shown in feet and indicate depths below Mean Lower Low Water 1983-2001.

Vertical Datum:

System (SPCS), Oregon South Zone. Distance units in U.S. Survey Feet.

North American Datum of 1983 (NAD83), projected to the State Plane Coordinate Horizontal Coordinate System:

16 ft. MLLW CONTOUR

18 ft. MLLW CONTOUR

20 ft. MLLW CONTOUR

16 ft. MLLW

18 ft. MLLW

20 ft. MLLW

18 ft. MLLW

***VERTICAL FACE***

MAXIMUM DREDGING / PAY DEPTH 16 ft

***NOTE ON DREDGING DEPTHS AT DOCK FACE***

S T

O S

T A

SEE SPECIFICATION SECTION 35 20 23.00 82

DETERMINED BASED ON PRE-DREDGE SURVEY

ACTUAL DREDGING DEPTHS & STATIONING TO BE

A W

A R

D D

A T

X X

-2

45' 45'

30' 45'

FACE

DOCK

REQUIRED DREDGING DEPTH

MAXIMUM DREDGING / PAY DEPTH

15'

DREDGING AND PAY DEPTH

DOCK FACE MAXIMUM

ADJACENT TO DOCKFACE

CROSS SECTION

DWG 2 OF 7

OWC-POR-000

SHEET ID

P L

A N

G L

A Y

O U

T D

R A

K A

R L

A G

L L

+8 +8

+6 +6 +7

+4 +4

+6 +7

+3 +5 +7+3+4 +1

+5 +7

+1 +1 +2 +4

+5 +7

+5 +6

2 1 1

0 0

+2 +4

8 5 7 2

1 1 1 1

+4 +5

6 7 6 9 11

3 2

1 1

0 0

+2 +5

9 9 7 7

2 2 2 2 1 1 1

1 0

+4 +7

8 8 8

10 7 8 7

5 3

2 2 1 1 1 1 1 1

+4 +5

9 9

8 11

5 44

3 2 2

2 2

2 1 1

1 1 1

0 +2 +5

8 13 14 11 8

13 11 9

6 4 3 3 3 2

1 1 1 00

+4 +6

8 12 6 9

15 15 15

12 11

11 9 6

3 3 3 3 2

2 2 2

1 1 1 1 1

0 +2 +5

3 4

81113 16 16 16

16 15

13 1312 11 9 7 5 3 3 3

2 2

2 2 2 2 1 1 1 1 1

2 1 2

5 11

151818 17 17 16 16

151414 14 13 13

11 4

3 3 3

2 2

2 2 2

1 1 1 1 1

2 2 3 4 5

7 10

17 16 16

161616 15 15 14 14 12

9 5 4 3

3 2 2 2 2

2 1

1 1

3 3 3 3 4 4 5 6 8 11 15

18 18

171716 16 16 16 15

3 3

3 3 2 2

2 2 2 2 2 2 2

1 1 1 1 1 1

1 3 4 4 5

14 18

1617 16

15 151412

9 4 3 3 3

2 2 2

2 2

1 1

5 4 4 5 6 7 9

17 17

14 4 3

1 1

5 5 5 6

7 7 9 12

18 18

18181717

17 16 1616

13 10

5 4

3 3 3 3

2 2

2 2 1 1

1 1

2 5

7 7

8 91114 181817

1818 1818 17 171717 1616161514

4 4

4 3 3 3

2 2

2 1 1 1

4 5 6 7

9 10 1113

17 18

181817 1616 1515

6 5

4 4 3 3 3

3 3

3 2

2 2

2 2 2 1 1

9 9

13 15 17

1919 19

16 14 1313 12 1110 8

6 6 5 5 4 4 4

3 3 3 3 3

3 2

2 22 2 2 2

6 8

11 121314

19 1919 19 19 18

12 12 11 9 8 6 6 5 5

5 4 4 4 4 3

3 3 3 3 2

2 2 2 2 2 2 2

6 5 5 7 9

121314

18161412 1111 10 9

6 6 6

4 4

3 2 2 2 2

5 6 8 9

19 19 19

15 12 10

7 7

6 6 5 5 4

4 4 4 3

2 2 2 2

10 12

13 14 1617 18 19

19 191919

12 1110

7 7 77 6 6 6 6 6

5 5

5 4

4 4 3 3 3 3

6 8

9 11 12 13

141617

1919 19 19 19 19 18 14

12 10 9 9

7 7 7 7 7 6 6 5

5 5 4 4 4 4 3 3

4 8

121314 1819 1919

19 1919

161512 11

10 8 8 8 7

7 7 7 7 7 6 6 6 5

5 5 4 4

8 10 11 13 14 15

19191918 16 15

13 1110 9 9

8 8 7 7 7 7 7

6 1010

121213 14 1616 19 1919

19 19 19

17 14 11

9 9 8 8 8 8 88 7

77 7

6 5

111212

15 1617 19 19 1919

191919 19 1918

141312 11 9

9 9 9

8 8

8 7 77 7 6

13 14

15 1819 19 19 1919

1514 11

9 9 9 8

88 8 8

12 12

18 19 2019 19 19 19 1816

9 9 9 9

7 7 13

1313 141515

19 2020 202019

1110 1010

10 9 9 9 9

12 13 14 1415 16 1718 1920

20 20

171615

10 10

8 711

151515 16

20 2019

11 10 1010

6 9 11 16

16 16 171717 18

20 2020

171716

15 13

1211 111110 10

111517 17 1718 18

18 19 20 20

20 20

12 12

12 11 1111 10

86 6

18 18 18181819 191919

17 14

14 12 12 12

111110

14 12 10

9 8

1920 19

20 2020

1919 18

1716 15

28 28

2215 12

23 21 21

20 20

20 19

121111

282828

2825 26 21

19 16 15

1724 22 22 21 21 21 20 20 20 21202020 201919

14 1313 1312 12

2828 28 282828

28 2621 19 19 19 22 26

2121 21 212121 21 20

19 18

1515 14

1313 12 11

28 28

27 2727 28 28 25 26 27

27 26

24 22 22

22 2222 21 2121 20

17 161615

13 13 12 12

2727 27 27 27

27 2728

28 282727

24 23

22222221212020 20

27 27 27

26 26

27 28

2525 24

23 23 23

21212020

1918 1717

15151414

131313

27 26

26 2728

242424 2323 2222

21 2120 2019

1615 15 14

26 26 2727

28 28 27 26

262525

24 24

212120

18171716

15141414

2626 26

24 2423 23

1919 18

15 15

25 25

2424 23 23

22 22 22 21

19 1918

161515 14 14

262626

23 22

18 17

17 15

26 25 25 25 25 24

2322 22 21

25 25

23 22

20 20

19 18 17

17 1716

25 24 24

21 2020 19 18

17 16

20 1919 18

17 16

2221 21

191918 1817

171716

22 22

21 21 20 19

19 18 18

222221

19 19

18 18

2221 21

19 19

191818

1720 2019

19 181820

20 19

19 18

20 ft. MLLW

DREDGING / PAY DEPTH

MAXIMUM

25-AUG-2021

SURVEY DATE

HYDRO

27-AUG-2021

SURVEY DATE

LAND

STA: 00+06+50

CROSS SECTION B - B

N.T.S.

STA: 00+03+50

CROSS SECTION A - A

SEE SPECIFICATION SECTION 35 20 23.00 82

DETERMINED BASED ON PRE-DREDGE SURVEY

ACTUAL DREDGING DEPTHS & STATIONING TO BE

CENTROID OF PLACEMENT SITE APPROX. 1928 FT

DISTANCE FROM CENTROID OF DREDGE AREA TO

NOT TO SCALE

RM 03+01+00 to 03+40+00 RM 04+30+00 to 04+50+00

FLOOD

EBB

LEGEND

Primary Control Point

Coordinated Survey Points

Uncoordinated Survey Points

Dredging Ranges

River Mileage from Mouth

Front

Flow Arrows Straight

Harbor Lines

State Boundary

Benchmarks

Gages Staff Recording

Rear

Tidal

Aids to Navigation

Lighthouses

Lights Fixed Flashing, Occulting

Lighted Ranges Front Rear

Lighted Buoys

Unlighted Buoys Port Starboard Mid Channel Junction

Daybeacons Port Starboard

Seasonal Lights and Lighted Dredging Ranges

NOTES

SCALE IN FEET

US ARMY CORPS

OF ENGINEERS

PORTLAND DISTRICT

OF YOUR CONTRACT

SAFETY IS A PART

U S

R M

Y C

O R

P S

O F

E N

E E

R S

P O

R T

L A

N D

T R

P O

R T

L A

N D

C H

A N

N E

L S

A N

D H

A R

B O

R S

P R

O J E

C T

O P

E R

A T

S D

NOT TO SCALE

STAFF GAGE AT USCG BOAT DOCK: Northing: 973042 Easting 7305497 be considered as indicating the general condition existing at that time.

The information depicted on this map represents the results of surveys made on the dates indicated and can only

River Basins Commission, July 1972

River mileage conforms to the River Mile Index of the Hydrology and Hydraulics Committee, Pacific Northwest

2012 Aerial Photography data source: USDA, Service Center Agencies

Reference is Navigation Chart No. 18521

Elevations are shown thus: +2, indicating height in feet above MLLW.

Soundings are shown in feet and indicate depths below MLLW.

1988 (NAVD88 Geoid 9 )at Columbia River Mile 2.6.

Vertical Datum is Mean Lower Low Water (MLLW ). MLLW is 0.22 feet below North American Vertical Datum of

Horizontal coordinates are based on the Lambert Projection for Oregon, North Zone (NAD 83, U.S. Survey Feet )

Control is by USACE.

PLACEMENT SITE W-4.8-IWPLACEMENT SITE O-3.2-IW

250' 250' 500' 750' 1000'

FLOOD

EBB

52+

X COORDINATE Y COORDINATE

X 7,310,000

X 7,308,000

X 7,310,000

X 7,306,000

X 7,308,000

0X 7,306,000

Baker Bay West Channel

Channel 12 Fl W

Daybeacon 11

Baker Bay West

Channel Buoy 11

Baker Bay West

Channel Buoy 10

Baker Bay West Channel

Channel 10 Fl R

West Daybeacon 9

Baker Bay West Channel

Channel 8, Fl W

Baker Bay West

Channel Buoy 6A

HEEL

Daybeacon 6

Entrance Jetty 2, Fl W

Baker Bay West Channel

Bake

Channel Buoy 3 Baker Bay West

Daybeacon 7

Channel Buoy WR7

Baker Bay West

BOAT HUB

BETTY M

D O

O R E G

O N

W A S H

W A S

G T

O N

O R E

G O

971766.20

7307835.08 971984.31

7307445.15 972294.95

7307538.62 972412.27

M A

E N

A N

C E

D R

E D

O R

E G

O N

A N

D W

A S

G T

O N

C L

A M

S H

E L

RM 01+03+00

LIMIT OF AA1

DOWNSTREAM

RM 01+11+00

LIMIT OF AA1

UPSTREAM

P L

A N

G L

A Y

O U

T D

R A

B A

K E

R B

A Y

S H

E E

AREA 1 COORDINATES

FOR PLACEMENT SITE REQUIREMENTS

SEE PLACEMENT PLAN (ATTACHMENT A20-2)

APPROXIMATE LOCATION

BUOY CHAIN & ANCHOR

X: 7309342.54 Y: 969533.94

7308021.90

7307933.03 972099.55

7308135.82 971863.78

R M

T O

20 21

18 1818

19 19

171717

18 18

15 15

16 1616

17 17

12 12121213

1717 17

121414 14

666 7 77 9

16 16 16

55 5

14 1414

15 16

17 17

1212 12

16 16

17 17

18 20

8 7

61816

17 1716

1111 13

15 16

10 10 10

9 9910

111112

13 141416

181818

3 3 3 4 4 5 5 5

6 6 6 77 7 7

9 9910

121213

17 1717

18 18

18 19

3 3

34 4

21 21

22 23

36 37

141414

18 18

33 36

15 16

12 91013

421 19

2927 WASHINGTON

OREGON

18 FT (MLLW )

16 FT (MLLW )

14 FT (MLLW )

18 FT (MLLW )

16 FT (MLLW )

RIVER MILE: 01+07+00

CROSS SECTION B - B

16 ft MLLW

AREA1 PRE/POST

18 ft MLLW

N.T.S.

75' 37.5' 37.5'

14 ft MLLW

QTR TO RED TOE

REQUIRED DEPTH RED

PAY DEPTH RED QTR TO RED TOE

TO RED QTR / MAX DREDGING AND

REQUIRED DEPTH GREEN TOE

TOE TO RED QTR

AND PAY DEPTH GREEN

MAXIMUM DREDGING

X COORDINATE Y COORDINATE X COORDINATE Y COORDINATE

7310850.30 961901.70

7309330.95 962448.96

7307747.52 962766.20

7307924.65 963648.93

7308889.88 963585.59

7309450.51 963433.90

7311057.00 962244.28

7317420.19 962282.45

7318493.91 961226.22

PLACEMENT SITE O-3.2-IW COORDINATES PLACEMENT SITE W-4.8-IW COORDINATES

10-SEP-2021

HYDRO SURVEY

AREA 2

7317665.14 960383.72

7316593.58 961437.82

X COORDINATE Y COORDINATE

7309397.77 968651.65

7309248.16 969892.67

7309347.44 969904.63

7309497.05 968663.62

AREA 2 COORDINATES

08-SEP-2021

HYDRO SURVEY

AREA 1

APPROX, 9,992 FT

TO CENTROID OF O-3,2-IW IS

DISTANCE FROM RM 01+10+00

APPROX, 15,279 FT

TO CENTROID OF O-4,8-IW IS

DISTANCE FROM RM 01+10+00

RIVER MILE: 00+27+00

CROSS SECTION A - A

100'

16 ft MLLW

AREA 2 PRE/POST

MAXIMUM PAY DEPTH

REQUIRED DEPTH

18 ft MLLW

N.T.S.

SEE SPECIFICATION SECTION 35 20 23.00 82

DETERMINED BASED ON PRE-DREDGE SURVEY

ACTUAL DREDGING DEPTHS & STATIONING TO BE

SEE SPECIFICATION SECTION 35 20 23.00 82

DETERMINED BASED ON PRE-DREDGE SURVEY

ACTUAL DREDGING DEPTHS & STATIONING TO BE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

S U

B M

E D

B Y

C H

E C

K E

D B

D R

A W

N B

C O

N T

R A

C T

N O

S O

N N

U E

D A

T E

S I Z

M A

R K

D E

S C

N D

A T

T S

-M A

R -2

C X

X X

A W

A R

D D

A T

X X

-2

DWG 3 OF 7

OWC-BB1-000

SHEET ID

K A

R L

A G

L L

D E

N E

D B

D A

RM 00+20+00

LIMIT OF AA2

DOWNSTREAM

RM 00+32+50

LIMIT OF AA2

UPSTREAM

Y ,0

ECT

END

EDERAL

LOCAL

MAI

NTAI

NED

Y ,0

X 7 ,30

7,0

X 7 ,30

7,0

MAXIMUM PAY DEPTH

FLOOD

EBB

LEGEND

Primary Control Point

Coordinated Survey Points

Uncoordinated Survey Points

Dredging Ranges

River Mileage from Mouth

Front

Flow Arrows Straight

Harbor Lines

State Boundary

Benchmarks

Gages Staff Recording

Rear

Tidal

Aids to Navigation

Lighthouses

Lights Fixed Flashing, Occulting

Lighted Ranges Front Rear

Lighted Buoys

Unlighted Buoys Port Starboard Mid Channel Junction

Daybeacons Port Starboard

Seasonal Lights and Lighted Dredging Ranges

NOTES

SCALE IN FEET

US ARMY CORPS

OF ENGINEERS

PORTLAND DISTRICT

OF YOUR CONTRACT

SAFETY IS A PART

REQUIRED DEPTH

U S

R M

Y C

O R

P S

O F

E N

E E

R S

P O

R T

L A

N D

T R

P O

R T

L A

N D

C H

A N

N E

L S

A N

D H

A R

B O

R S

P R

O J E

C T

O P

E R

A T

S D

100' 100' 200' 300' 400'

16 FT (MLLW )

17 FT (MLLW )

16 ft MLLW

17 ft MLLW

PRE/POST

R M

T O

R M

75' 75'

RIVER MILE: 03+05+25

CROSS SECTION A - A

100'

(N..T.S )

STAFF GAGE AT USCG BOAT DOCK: Northing: 973042 Easting 7305497 be considered as indicating the general condition existing at that time.

The information depicted on this map represents the results of surveys made on the dates indicated and can only

River Basins Commission, July 1972

River mileage conforms to the River Mile Index of the Hydrology and Hydraulics Committee, Pacific Northwest

2012 Aerial Photography data source: USDA, Service Center Agencies

Reference is Navigation Chart No. 18521

Elevations are shown thus: +2, indicating height in feet above MLLW.

Soundings are shown in feet and indicate depths below MLLW.

1988 (NAVD88 Geoid 9 )at Columbia River Mile 2.6.

Vertical Datum is Mean Lower Low Water (MLLW ). MLLW is 0.22 feet below North American Vertical Datum of

Horizontal coordinates are based on the Lambert Projection for Oregon, North Zone (NAD 83, U.S. Survey Feet )

Control is by USACE.

Daybe acon

Chann el 22

Qk Fl GBaker

Bay W est

Basin 2 Fl RIlwaco

Mooring

Basin 3 Fl GIlwaco

Mooring

91H-01 -04

X 7 ,30

8,0

Y ,0

X 7 ,30

6,0

X 7 ,30

8,0

X 7 ,30

6,0

Y ,0

Daybea con 2

M A

E N

A N

C E

D R

E D

O R

E G

O N

A N

D W

A S

G T

O N

C L

A M

S H

NOT TO SCALE

RM 03+01+00 to 03+40+00 RM 04+30+00 to 04+50+00

NOT TO SCALE

PLACEMENT SITE W-4.8-IWPLACEMENT SITE O-3.2-IW

X COORDINATE Y COORDINATE X COORDINATE Y COORDINATE

7310850.30 961901.70

7309330.95 962448.96

7307747.52 962766.20

7307924.65 963648.93

7308889.88 963585.59

7309450.51 963433.90

7311057.00 962244.28

7317420.19 962282.45

7318493.91 961226.22

PLACEMENT SITE O-3.2-IW COORDINATES PLACEMENT SITE W-4.8-IW COORDINATES

X COORDINATE Y COORDINATE

FOR PLACEMENT SITE REQUIREMENTS

SEE PLACEMENT PLAN (ATTACHMENT A20-2)

7317665.14 960383.72

7316593.58 961437.82

AREA 4 COORDINATES

P L

A N

G L

A Y

O U

T D

R A

B A

K E

R B

A Y

S H

E E

7306967.17 978496.76

7307057.83 978569.67

979090.97

7307148.40 980054.28

7307297.55 980070.21

7307338.59 979685.96

7307446.00 979621.93

7307537.72 978763.24

7307061.19 978379.89

7307251.29

03+10+00

OF AA4

UPSTREAM LIMIT

02+45+00

OF AA4

DOWNSTREAM LIMIT

7 7

8 7

17 17

11 9

8 7

14 10

13 16

18 17

12 10

11 10

15 11

8 8

9 10 11 13

18 18

9 10

11 13

17 18

18 18

9 10

17 18

13 12

8 8 8

8 9

12 15

18 1818

88 7

17 16

16 18

18 19

19 18

6 7

19 20

7 66

6 7

19 19

6 6

6 8

6 66

7 8

8 9

17 17

18 18

19 18

8 9

15 17

15 15

45 6

4 5

19 19

18 18

17 18

6 7

17 17

19 19 18 18

18 18

11 14

15 15

151515

12 14

18 18

16 16

9 4

3 3

9 12

17171

9 12

16 16

4 4

10 12

17 17

18 18

19 19

4 4

11 12

15 15

16 16

171715

7 11

14 14

16 16

4 5

8 11

18181

18 18

17 17

16 16

17 17

16 16

6 9

11 12 13 13

17 18

191919

151511

19 19

14 14

3 3

5 8

11 12

202021

21 1918

11 12

14 14

17 17

4 7

9 10

13 14

18 19

4 7

17 18

16 17

33 3

16 17

3 3

6 7

16 12

18 18

4 4

28-SEP-2021

HYDRO SURVEY

APPROX, 9,992 FT

TO CENTROID OF O-3,2-IW IS

DISTANCE FROM RM 01+10+00

APPROX, 15,279 FT

TO CENTROID OF O-4,8-IW IS

DISTANCE FROM RM 01+10+00

SEE SPECIFICATION SECTION 35 20 23.00 82

DETERMINED BASED ON PRE-DREDGE SURVEY

ACTUAL DREDGING DEPTHS & STATIONING TO BE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

S U

B M

E D

B Y

C H

E C

K E

D B

D R

A W

N B

D E

N E

D B

C O

N T

R A

C T

N O

S O

N N

U E

D A

T E

S I Z

M A

R K

D E

S C

N D

A T

T S

D A

T S

-F E

B -2

C X

X X

-2

A W

A R

D D

A T

DWG 4 OF 7

OWC-BB2-000

SHEET ID

K A

R L

A G

L L

PLACEMENT SITE

W-4.8-IW

L----1 1-1

I N.T.S.

3 4

PLACEMENT AREA D

5 6 7 8

I N.T.S.

5 -

DISTANCE FROM RM

01+30+00 TO DISPOSAL

CENTROID IS 13813 FT

SEE PLACEMENT PLAN (ATTACHMENT A20-2)

FOR PLACEMENT SITE REQUIREMENTS

CENTROID IS 13813 FT

01+30+00 TO DISPOSAL

CENTROID IS 13890 FT

REQUIRED DEPTH

MAXIMUM PAY DEPTH

PLACEMENT SITE

W-4.8-IW COORDINATE S

X COORDINATE

7316593.58

7317420.19

7318493.91

7317665.14 ao

Y COORDINATE

961437.82

962282.45

961226.22

960383. 72

3li

PLACEMENT SITE

'ARE A D' COORDINATES

X COORDINATE

7324454.22

7324876.38

7329800.28

7329378.12

:0 ['T'\ Cl z

Y COORDINATE

955917.09 0

957874.81

956813.02 5 -

954855.30

REQUIRED DEPTH

MAXIMUM PAY DEPTH

J> cJ) :i:

z Cl z

DOWNSTREAM LIMIT

OF AREA 1

00+47+50

IIO

\ 1 ,. -----------------------------------�

I ao

AREA1

HYDRO SURVEY

01-MAR-2022

I 3li

9 9_f 1 1 6 !, 6 !, 4 A 4 4- '!, g & g & ,.:J 6

1 6 6 !J 6, !> It 4 4 '!, '!, '!, '3 '!, 2 'l.

--- -10 FT MLLW CONTOUR

--- -11 FT MLLW CONTOUR

--- -12 FT MLLW CONTOUR

75'

AREA2

75'

CROSS SECTION B - B

RIVER MILE: 01+44+00

AREA1

75'

CROSS SECTION B - B

RIVER MILE: 01+47+50

AREA 1 COORDINATES AREA 2 COORDINATES

X COORDINATE Y COORDINATE X COORDINATE Y COORDINATE X COORDINATE Y COORDINATE X COORDINATE

A 7326571.27 965444.56 G 7328886.33 968600.17 K 7328632.30 968626.77 Q 7328897.66

B 7327403.68 966052.21 H 7328617.97 967110.89 L 7328775.78 968832.54 R 7326659. 71

C 7328169.24 966786.69 7327942.93 966260.15 M 7329044.34 968925.39

D 7328289.41 966938.14 J 7326659.71 965323.41 N 7329981.54 968078.80

E 7328529.73 967467.07 0 7329880. 78 967967 .67

F 7328632.30 968626. 77 p 7329051.92 968716.40

\fl

12 13

ACTUAL DREDGING DEPTHS & STATIONING TO BE

DETERMINED BASED ON PRE-DREDGE SURVEY

SEE SPECIFICATION SECTION 35 20 23.00 82

_____ 10ftMLLW

----- 11 fl:MLLW

N.T.S.

ACTUAL DREDGING DEPTHS & STATIONING TO BE

DETERMINED BASED ON PRE-DREDGE SURVEY

SEE SPECJFJCATION SECTION 35 20 23.00 82

-----10ftMLLW

----- 12flMLLW

N.T.S.

14 15 16 17 18 19 20

SAFETY IS A PART

OF YOUR CONTRACT

POTENTIAL DOWNSTREAM

LIMITS OF AREA 2

01+36+00

2 '). L � • •

-10 FT MLLW CONTOUR

I ct\, \,, \,, POTENTIAL

UPSTREAM

6 •

LIMITS OF

_ -=----______________ AREA_ 1 ___________ --+-�\:_�

0 1 + 3 6 + 0 0 8.s ' ', ,0

-· 13

-11 FT MLLW CONTOUR

-12 FT MLLW CONTOUR

POTEN;i:IAl:

UPSTREAM

LIMITS 0m

AREA 2

01+51+50

SCALE IN FEET

Y COORDINATE

968663.06

965323.41 Primary Control PolnL ____ -� Benchmarks.._ ________ X Coordinated Survey Pointa._ __ -@ Gagas StafL.f-l-- _Recording....-0- Uncoordlnated Survey Pointa._ _ -0 LJ LJ Dredging Ranges_ Front- - _ @- - - - _-

- ___ -Rear- �

River MIieage from Mouth.- _________ - � . � fBB Flow Arrows ___ _ S/ra,ghL _________ . ___ T1daL , Harbor Lines ,,__~-'-----__,,�-�---o I nooO r State Boundary--- - -- -- ---- ---- --

Aids 19 Navigation

'*' --Lighthouses_-..±,-________ --� ________ _ L(ghts.... __ Find_ -J'f<;:

FJnhi��-

Occulrlnp. �. 'tt-., ..._.L..

-� 1 ', � Lighted Renges_ _ _ _F,on'--1"':; ______ �-Reel'-� ' Lighted Buoys____ _ _ _ _ _ _ _ _ _ __ Unlighted Buoys Poj

1":

__ Starbo9JX _ _ Mid c��nn,1�

_ Junotr� _ 1

Daybeacans _______________ PorLTif _S/arboard -� ..A, Seasonal Lights and Lighted Dredging Ranges.. __________ �,:(, •

250' 0 250' 500' 750' 1000' - - -- -- -

NOTES

Horizontal Coordinate Sy_stem:

North American Datum of 1983 (NAD83), projected to tho Stato Plano Coordinate Sys/om (SPCS), Oregon North Zona. [)/stance units in U.S. Survey Feet.

Varticaf Datum:

Soundings are shown in feet and indicate depths below Mean Lower Low Water.

MLLW is 0.15 feet bolow tho North American Vertical Datum (NAVO 88 Geoid 09) at Columbia River Mite 5.7.

River mileage conforms to the River Mila Index of the Hydrology and Hydraulics Commitee, Pacific Northwest River Basins Comm;ssion, July f972.

The information depicted on this map represents the results of a survey conducted on the data indicated and can only be considered to represent the general condition existing at that time.

STAFF GAGE CHINOOK BOAT RAMP: Northing: 968032 Easting: 7330649 m

US ARMY CORPS

OF ENGINEERS

PORTLAND DISTRICT

ci z;::

zo w ··N oo W N - Dl f- (.) !,: N !i � ��

(.) N Cl� Cl ' f- z �� w� - .... f- Cl ')I

!,! N

I� �i _, � z� 0 "' 0 "' Cl) :::: (.)::::

.. Cl) ► ► � ;:j Dl c, -' w

Cl z

Cl) w Cl

II'.

► Cl WW ---Dl w w � ci z z "(!)

1� (.) � :5 .. 0 iii Dl WC!) Dl II'. w"' w <( IC/) iil �

Cl Cl Cl Cl (.) f- u5.;.:

en w ... w u z z (.) z -o:: Q g:o <J) <J) en - � 0 0 -o C "' fJl Oz <J) "'

0� z <a.. 0 I Cl:'. z f- � j 0 �Cl:'.

!i:� w <J) a. � O W

� 0 z Cl:'. a..

u ui w

J: N Cl)N �o <(N _J (!) N

Oz oa � 00 (!)

++ z o<!> CON

I (")LO 1--0 c:: ++<( w w �� zC::: (.) 00 f-z ::::>

-0 ;'!: 00 Iw a.. I-I- � Cl) () 00 (!)

(.) LOO z <( ++ z " I'-- co z 0 "<t (") :5 oz 0 zw z ++ 0..

I o�

<(I-- (.) 00 zZ o<( w

SHEET ID

OWC-CHK-000

DWG 5 OF7

US ARMY CORPS

OF ENGINEERS

PORTLAND DISTRICT

OF YOUR CONTRACT

SAFETY IS A PART

936058.06

X COORDINATE Y COORDINATE

A 7339441.10

AREA 1 COORDINATES

930247.33B 7337156.44

930153.52C 7337065.30

930486.89D 7336827.63

930497.86E 7336912.73

930621.42F 7337086.03

936131.43G 7339254.46

M A

T E

N A

N C

E D

R E

D G

O R

E G

O N A

N D W

A S

G T

O N C

L A

M S

H E

R M

S K

A N

O N R

A N

G L

A Y

O U

T D

R A

FLOOD

EBB

LEGEND

Primary Control Point

Coordinated Survey Points

Uncoordinated Survey Points

Dredging Ranges

River Mileage from Mouth

Front

Flow Arrows Straight

Harbor Lines

State Boundary

Benchmarks

Gages Staff Recording

Rear

Tidal

Aids to Navigation

Lighthouses

Lights Fixed Flashing, Occulting

Lighted Ranges Front Rear

Lighted Buoys

Unlighted Buoys Port Starboard Mid Channel Junction

Daybeacons Port Starboard

Seasonal Lights and Lighted Dredging Ranges

SCALE IN FEET

U S

A R

M Y C

O R

P S O

F E

N G

E E

R S

P O

R T

L A

N D D

T R

T P

O R

T L

A N

O R

C H

A N

N E

L S A

N D H

A R

B O

R S P

R O J E

C T

O P

E R

A T

N S D

250'250' 0 500' 1000' 1500'

X COORDINATE Y COORDINATE

7334064.91

7336981.32

7339665.48

7340000.45 939547.63

938876.59

940216.48

942583.56

W-10.2-IW COORDINATES

X COORDINATE Y COORDINATE

7329819.77

7329463.13

7333756.39

7334113.04 940602.37

940251.94

944621.38

944971.81

O-9.2-IW COORDINATES

W-10.2-IW

PLACEMENT SITE

N.T.S.

NOT TO SCALE

O-9.2-IW

PLACEMENT SITE

7337316.29 940887.52

7334824.38 943051.42

MATERIAL WITHIN THIS SITE

PLACE 35-45% OF ALL SKIPANON

DISPERSAL.

PLACEMENT. MAXIMIZE

CELL BEFORE REPEATING

INITIATE ONE LOAD IN EACH

***USE ON EBB ONLY***

MATERIAL WITHIN THIS SITE

PLACE 55 - 65% OF ALL SKIPANON

DISPERSAL.

PLACEMENT. MAXIMIZE

CELL BEFORE REPEATING

INITIATE ONE LOAD IN EACH

USE ON FLOOD OR EBB

52+80

30 40 50

504030

10 20

Range Front Skipanon Waterway

HLM 39

HLM 40

HLM 38 (Reset)

HLM 37

LT 4 Fl R Skipanon Channel West

LT 3 Fl G Skipanon Channel East

GAGE

STAFF

X 7 ,33

8,0

X 7 ,33

8,0

Y ,0

THE EXISTING PROJECT

Presently maintained at 16 feet based on user needs.

RIVER MILE: 01+33+50

CROSS SECTION B - B

N.T.S.

206' 208'

-14 ft MLLW

-15 ft MLLW

REQUIRED DEPTH

A B

F G

121211

13115

161616

-0

-001

-0

-01

151515

25 27

-14 FT CONTOUR (MLLW)

-15 FT CONTOUR (MLLW)

-16 FT CONTOUR (MLLW)

-17 FT CONTOUR (MLLW)

930153.52

X COORDINATE Y COORDINATE

7337065.30

AREA 2 COORDINATES

930018.37

7336934.01

930056.87

7336466.95

930439.277336458.49

930486.897336827.63

02-MAR-2022

SURVEY DATE

RM 00+20+00

DREDGE AREA #1

DOWNSTREAM LIMIT OF

RM 01+35+00

DREDGE AREA #2

UPSTREAM LIMIT OF

NOTES

Northing: 929630 Easting: 7335381 STAFF GAGE AT Boat Basin and can only be considered as indicating the general condition existing at that time.

The information depicted on this map represents the results of surveys made on the dates indicated

Commission,July 1972.

to the River Mile Index of the Hydrology and Hydraulics Committee, Pacific Northwest River Basin 2012 Aerial Photography data source: USDA, Service Center Agencies. River mileage conforms Reference is Navigation Chart No. 18521.

The project depth curve is shown thus:

depths below MLLW. Elevations are shown thus: +2, indicating height in feet above MLLW.

Datum (NAVD 88 Geoid 09) at Columbia River Mile 10.9 Soundings are shown in feet and indicate Vertical datum is Mean Lower Low Water. (MLLW is 0.09 feet below the NorthAmerican Vertical

(NAD 83, U.S. Survey Feet).

Horizontal coordinates are based on the Lambert Projection for Oregon, North Zone Control is by USACE and NOS-C&GS.

RM 01+30+00

DREDGE AREA #2

DREDGE AREA #1 &

BOUNDARY OF

RIVER MILE: 01+23+15

CROSS SECTION A - A

100'

MAXIMUM PAY DEPTH

AREA 1

100'

-16 ft MLLW

-17 ft MLLW

REQUIRED DEPTH

N.T.S.

DREDGING DEPTH

MAXIMUM PAY AND

AREA 2

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

S U

B M

T E

D B

C H

E C

K E

D B

D R

A W

N B

D E

N E

D B

C O

N T

R A

C T N

S O

A T

N N

U E D

A T

M A

R K

D E

S C

N D

A T

DWG 6 OF 7

OWC-SKP-000

SHEET ID

S C

A L E

D A

K A

R L

A G E

L L

D A

T S

-M

A R -2

N F

Y C

X X

FLOOD

EBB

LEGEND

Primary Control Point

Coordinated Survey Points

Uncoordinated Survey Points

Dredging Ranges

River Mileage from Mouth

Front

Flow Arrows Straight

Harbor Lines

State Boundary

Benchmarks

Gages Staff Recording

Rear

Tidal

Aids to Navigation

Lighthouses

Lights Fixed Flashing, Occulting

Lighted Ranges Front Rear

Lighted Buoys

Unlighted Buoys Port Starboard Mid Channel Junction

Daybeacons Port Starboard

Seasonal Lights and Lighted Dredging Ranges

NOTES

SCALE IN FEET

US ARMY CORPS

OF ENGINEERS

PORTLAND DISTRICT

OF YOUR CONTRACT

SAFETY IS A PART

30-JUL-2021

HYDRO SURVEY DATE

O-9.2-IW

O -9 .2 -I

W A

N D W

-1 .2 -I

P L

A C

E M

E N

T S

U S

A R

M Y C

O R

P S O

F E

N G

E E

R S

P O

R T

L A

N D D

T R

T P

O R

T L

A N

O R

C H

A N

N E

L S A

N D H

A R

B O

R S P

R O J E

C T

O P

E R

A T

N S D

500' 500' 1000' 1500' 2000'

"29"

"27"

20 30

53+25

Ft. Stevens 26, Fl R

"25"

GAGE

STAFF

9011 K

9011 J

9011 A

9011 E

9011 B

HAM BAY

SHRILL RM 1

SHRILL

9.46

DIKE

9.34

DIKE

IKE 9.21

53+25

Y 9 40, Y 9 40, X ,3 ,0

X ,3 ,0

53+25

COLUMBIA

RIV

S K I P

A N

C H

A N

S T

X COORDINATE Y COORDINATE

D 7339665.48

7340000.45

7337316.29

7334444.64 943051.42

940887.52

939547.63

938876.59

X COORDINATE Y COORDINATE

J 7329463.12

7333756.39

7334113.04

7329819.77 944971.81

940602.37

940251.94

944621.38

O-9.2-IW

PLACEMENT SITE

7334064.91 942583.56

7336981.32 940216.48

O-9.2-IW COORDINATESW-10.2-IW COORDINATES

W-10.2-IW

PLACEMENT SITE

STAFF GAGE AT HAMMOND: Northing: 943436 Easting: 7328475

STAFF GAGE AT WOODEN PILING: Northing: 945307 Easting: 7328118 general condition existing at that time.

made on the dates indicated and can only be considered as indicating the

The information depicted on this map represents the results of surveys

Commission,July 1972.

mileage conforms to the River Mile Index of the Hydrology and HydraulicsCommittee, Pacific Northwest River Basin

Reference is Navigation Chart No. 18521. 2012 Aerial Photography data source: USDA, Service Center Agencies.River

The project depth curve is shown thus:

indicating height in feet above MLLW.

at Columbia River Mile 8.3. Soundings are shown in feet and indicate depths below MLLW. Elevations are shown thus: +2, Vertical datum is Mean Lower Low Water. (MLLW is 0.09 feet below the North American Vertical Datum (NAVD 88 Geoid 09)

Horizontal coordinates are based on the Lambert Projection for Oregon, North Zone (NAD 83, U.S. Survey Feet).

Control is by USACE and NOS-C&GS.

56 50

51 48

46 47

50 50

53 52

47 45

45 45

50 47

41 38

36 36

01-APR-2021

HYDRO SURVEY DATE

W-10.2-IW

M A

T E

N A

N C

E D

R E

D G

O R

E G

O N W

A S

G T

O N C

L A

M S

H E

L L

MATERIAL WITHIN THIS SITE

PLACE 35-45% OF ALL SKIPANON

MATERIAL

REPEATING PLACEMENT - MAXIMIZE DISPERSAL OF

INITIATE ONE LOAD IN EACH CELL BEFORE

***USE ON EBB ONLY***

MATERIAL WITHIN THIS SITE

PLACE 55-65% OF ALL SKIPANON

MATERIAL

REPEATING PLACEMENT- MAXIMIZE DISPERSAL OF

INITIATE ONE LOAD IN EACH CELL BEFORE

USE ON FLOOD OR EBB

P L

A N

G P

L A

C E

M E

N T S

E L

A Y

O U

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

S U

B M

T E

D B

C H

E C

K E

D B

D R

A W

N B

D E

N E

D B

C O

N T

R A

C T N

S O

A T

N N

U E D

A T

M A

R K

D E

S C

N D

A T

DWG 7 OF 7

OWC-DISP1-000

SHEET ID

S C

A L E

D A

K A

R L

A G E

L L

D A

T S

-M

A R -2

C X

X X

00_OWC-TLT-000

01_OWC-IND-000

02_OWC-POR-000

03_OWC-BB1-000

04_OWC-BB2-000

05_OWC-CHK-000

07_OWC-SKP-000

06_OWC-DISP1-000

File details come from the government source that posted it. Updated Mar 24, 2022.