W912P726RA022_FY26_SAN_RAFAEL_Plans_FINAL.pdf

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San Rafael Creek and ATF FY26 Maintenance Dredging
Solicitation number
W912P726RA022
Issued by

About this file

These are design drawings and project specifications for the San Rafael Creek and Across the Flats FY26 Maintenance Dredging Project in Marin County, California, prepared by the U.S. Army Corps of Engineers, San Francisco District. The project encompasses approximately 200.71 stations of dredging across multiple reaches, with dredging depths of -8 feet MLLW for Across the Flats sections and -6 feet MLLW for San Rafael Creek sections. The contract includes five acceptance reaches: Reach 0 (STA -5+00 to 0+00), Reach 1 (STA 0+00 to 57+00), Reach 2 (STA 57+00 to 118+84), Reach 3A (STA 118+84 to 153+00), and Reach 3B (STA 153+00 to 175+00), with Reach 4 (STA 175+00 to 200+71) excluded from the contract. Dredged material from Reaches 0, 1, 2, and 3A will be disposed at the Alcatraz Disposal Site SF-11, while material from Reach 3B will be disposed at the deep ocean disposal site SF-DODS.

The project specifications include standard dredging allowances of 1.0 foot paid overdepth, 1.0 foot non-paid overdepth, and 2.0 feet maximum total allowable overdepth. Contractors must locate and verify all underwater and overhead utilities before commencing work, including PG&E overhead transmission lines crossing the project area and Sanitation District sewer pipelines with elevations varying from -50 feet to -56 feet MLLW. Bathymetric survey data was conducted on March 5, 2026, based on Mean Lower Low Water (MLLW) datum with vertical control referenced to VDATUM (Geoid 12B) and horizontal control to NAD83 (2011) California State Plane Coordinates Zone 3. The solicitation number is W912P726RA022 with contract number W912P726CXXXX, issued in July 2026.

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Text version

S

A N

R A F A E L C R E E K

SAN RAFAEL CROSS THE FLATS

ACROSS THE FLATS EXTENSION

US Army Corps of Engineers San Francisco District

SAN RAFAEL

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APPROVED BY:

ROBIN K. INABA, AIA, PMP DATE

CHIEF, ENGINEERING AND CONSTRUCTION DIVISION

SUBMITTED BY:

THIS PROJECT WAS DESIGNED BY THE SAN FRANCISCO DISTRICT OF

THE U.S. ARMY CORPS OF ENGINEERS. THE INITIALS OR SIGNATURES

AND REGISTRATION DESIGNATIONS OF INDIVIDUALS THAT APPEAR

ON THESE PROJECT DOCUMENTS ARE WITHIN THE SCOPE OF THEIR

EMPLOYMENT AS REQUIRED BY ER 1110-1-8152.

SIGNATURES AFFIXED BELOW INDICATE OFFICIAL RECOMMENDATION

AND APPROVAL OF DRAWINGS IN THIS SET.

ERIKA E. POWELL, PE DATE

ACTING CHIEF, ENGINEERING BRANCH

PREPARED UNDER THE DIRECTION OF:

LIEUTENANT COLONEL, U.S. ARMY

DISTRICT COMMANDER AND ENGINEER

VIRGINIA R. BRICKNER

SOLICITATION NO: W912P726RA022

CONTRACT NO: W912P726CXXXX

ISSUE DATE: JULY 2026

CONFORMED FOR CONSTRUCTION

MARIN COUNTY, CALIFORNIA

SAN RAFAEL CREEK AND ACROSS THE FLATS

FY26 MAINTENANCE DREDGING PROJECT

LOCATION MAP

NOT TO SCALE

WEST MARIN

ISLAND

EAST MARIN

ISLAND

S

N

F R

A N

C I

S

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B

Y

S A N P A B L O B A Y

RICHMOND

OAKLAND

SAN

FRANCISCO

MILL

VALLEY

SAUSALITO

SAN

RAFAEL

PROJECT

AREA

VALLEJONOVATO

VICINITY MAP

NOT TO SCALE

PROJECT

LOCATION

GENERAL NOTES

1. ALL REACHES MUST BE DREDGED TO THE PROJECT DEPTH AS SPECIFIED. WHEN

DREDGING TO THE REQUIRED DEPTH IN AREA WHERE A UTILITY CROSSING EXISTS,

DREDGING MUST BE DONE IN ACCORDANCE WITH SPEC 01 11 00. BEFORE STARTING

WORK, THE CONTRACTOR SHALL LOCATE AND VERIFY ALL UNDERWATER AND

OVERHEAD UTILITIES. WORK MAY ONLY BEGIN AFTER THESE LOCATIONS ARE

CONFIRMED AND SAFE WORK LIMITS HAVE BEEN ESTABLISHED. THE UTILITY

CROSSINGS SHOWN ON THE DRAWINGS REFLECT USACE'S KNOWLEDGE OF

EXISTING UTILITIES.

2. BATHYMETRIC SURVEY OF SAN RAFAEL CREEK AND ACROSS THE FLATS WAS

CONDUCTED BY THE U.S ARMY CORPS OF ENGINEERS, SAN FRANCISCO DISTRICT,

ON 05 MARCH 2026.

3. BATHYMETRIC SURVEY SOUNDINGS ARE BASED ON THE DATUM OF MEAN LOWER

LOW WATER (MLLW) AT THE LOCALITY.

4. DRAWINGS ARE NOT TO BE USED AS NAVIGATION CHARTS.

5. INFORMATION SHOWN ON THE DRAWINGS IS BASED ON BATHYMETRIC SURVEYS

MADE ON THE DATES INDICATED AND CAN ONLY BE CONSIDERED FOR THE

GENERAL CONDITIONS EXISTING AT THAT TIME.

6. BATHYMETRIC SURVEY SOUNDINGS WERE TAKEN BY FATHOMETER (MULTI-BEAM

SURVEY EQUIPMENT) AND ARE SHOWN TO THE NEAREST TENTH OF A FOOT.

7. COORDINATES ARE BASED ON THE CALIFORNIA STATE PLANE COORDINATE

SYSTEM OF 1983 (CCS83), LAMBERT CONFORMAL PROJECTION ZONE III, AS

DESCRIBED IN SPECIAL PUBLICATION NO. 253, PUBLISHED BY NATIONAL OCEAN

SURVEY.

8. THE PROJECT DEPTHS ARE -8 FT MLLW FOR THE SAN RAFAEL ACROSS THE FLATS

AND -6 FT MLLW FOR THE SAN RAFAEL CREEK.

9. THE DISPOSAL SITE FOR REACHES 0, 1, 2, AND 3A IS THE ALCATRAZ DISPOSAL SITE

SF-11. THE DISPOSAL SITE FOR REACH 3B IS THE DEEP OCEAN DISPOSAL SITE

SF-DODS.

10. THE LOCATION OF ALL NAVIGATION AIDS ARE BASED ON INFORMATION PROVIDED

BY THE U.S. COAST GUARD. BUOY LOCATION REPRESENTS THE POSITION OF THE

SINKER ONLY.

11. AERIAL IMAGE COURTESY OF ESRI, DIGITALGLOBE, GEOEYE, EARTHSTAR

GEOGRAPHICS, CNES/AIRBUS DS, USDA, USGS, AEX, GETMAPPING, AEROGRID, IGN,

IGP, SWISSTOPO, AND THE GIS USER COMMUNITY.

12. SEDIMENT SAMPLING AND TESTING DATA AVAILABLE UPON REQUEST.

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2' ALLOWABLE OVERDEPTH

(PAID AND NON-PAID)

EL. 0.00 FEET MLLW

1.0' ALLOWABLE (PAID) OVERDEPTH

PROJECT DEPTH

NOTE:

SEE SPECIFICATION SECTION 35 20 23 (DREDGING) FOR DETAILS.

1.0' ALLOWABLE OVERDEPTH (NON-PAID)

VARIES

TYPICAL DREDGING SECTION

NOT TO SCALE

MATERIAL TO BE DREDGED (PAID)

NO DREDGING ON SIDE SLOPES

(SEE NOTE)

EXISTING CHANNEL BOTTOM

SIDE-SLOPE PRISM

CHANNEL WIDTH VARIES

SEE PLAN

SHEET SHEET

NUMBER ID DESCRIPTION

01 G001 COVERSHEET

02 G002 SCHEDULE OF DRAWINGS, ACCEPTANCE REACHES,

SURVEY CONTROL DATA, ABBREVIATIONS, GENERAL

NOTES, AND TYPICAL DREDGING SECTION

03 G003 KEY MAP AND CHANNEL CONTROL POINT TABLES

04 G004 DISPOSAL SITES SF-10 AND SF-11

05 C101 DREDGING PLAN

STA -5+00 TO STA 19+50

06 C102 DREDGING PLAN

STA 19+50 TO STA 46+50

07 C103 DREDGING PLAN

STA 46+50 TO STA 73+50

08 C104 DREDGING PLAN

STA 73+50 TO STA 101+50

09 C105 DREDGING PLAN

STA 101+50 TO STA 128+50

10 C106 DREDGING PLAN

STA 128+50 TO STA 153+50

11 C107 DREDGING PLAN

STA 153+50 TO STA 181+50

12 C108 DREDGING PLAN

STA 181+50 TO STA 200+71

SCHEDULE OF DRAWINGSABBREVIATIONS

APPROX APPROXIMATE

CLIN CONTRACT LINE ITEM NUMBER

CY CUBIC YARD

CU YD CUBIC YARD

DIA DIAMETER

DWG DRAWING

E EAST

EA EACH

FT FOOT / FEET

H HORIZONTAL

L LENGTH

LT LEFT

MAX MAXIMUM

MIN MINIMUM

MLLW MEAN LOWER LOW WATER

N NORTH

NAD NORTH AMERICAN DATUM

NAVD NORTH AMERICAN VERTICAL DATUM 1988

NO NUMBER

NTS NOT TO SCALE

PID PERMANENT IDENTIFIER

RT RIGHT

RTK REAL TIME KINEMATIC

S SLOPE / SOUTH

STA STATION

TYP TYPICAL

V VERTICAL

W WEST

ACCEPTANCE REACHES

SAN RAFAEL ACROSS THE FLATS EXTENSION

REACH 0: STA -5+00 TO STA 0+00

SAN RAFAEL ACROSS THE FLATS

REACH 1: STA 0+00 TO STA 57+00

REACH 2: STA 57+00 TO STA 118+84

SAN RAFAEL CREEK INNER CANAL

REACH 3A: STA 118+84 TO STA 153+00

REACH 3B: STA 153+00 TO STA 175+00

REACH 4: STA175+00 TO STA 200+71 (NOT IN CONTRACT)

VERTICAL CONTROL

VERTICAL DATUM

MLLW (VDATUM, GEOID12B)

CONTROL:

941 4892 A TIDAL (PID BBDK66) MLLW: 9.324 FT (VDATUM)

B.M. TIDAL 17 (1951) MLLW: 9.73 FT (DESTROYED)

L 551 (1956) MLLW: 15.61 FT (LEGACY)

HORIZONTAL CONTROL:

HORIZONTAL REFERENCE FRAME:

NAD83 (2011) EPOCH 2010.000

PROJECTED STATE PLANE COORDINATES:

CALIFORNIA ZONE 3 (CA0403)

G002

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© 2026 Microsoft Corporation © 2026 Maxar ©CNES (2026) Distribution Airbus DS

∠01

∠02

∠03 ∠09

∠10

∠11∠12 ∠13

∠14

∠15

∠16

∠17

∠1

∠1

∠20 ∠21

∠22

∠23

∠24

∠25 ∠26

∠28 ∠29

∠30 ∠31

∠32

∠33

∠34

∠36 ∠37

∠38

∠39 ∠40

∠41 ∠42 ∠43

∠4

∠45

∠46

∠47

∠48

∠49 ∠50 ∠51

∠52

C1

C2

C3C4 C5

C6

C7

C8

C9

C10

C11

C12 C13

C14

C15

C16

C17 C18

C20

C21 ∠04

∠06

∠05

SAN RAFAEL CREEK

ACROSS THE FLAT

ALIGNMENT CONTROL POINT TABLE

POINT #

∠01

∠02

∠03

∠04

∠05

∠06

NORTHING

2176520.90

2179086.60

2181646.65

2181737.65

2179177.61

2176611.90

EASTING

5998342.09

5992699.31

5987068.67

5987110.07

5992740.69

5998383.49

SAN RAFAEL CREEK

INNER CANAL

ALIGNMENT CONTROL POINT TABLE

POINT #

∠09

∠10

∠11

∠12

∠13

∠14

∠15

∠16

∠17

∠18

∠19

∠20

∠21

∠22

∠23

NORTHING

2181664.86

2181878.95

2182006.05

2182024.15

2181965.95

2181703.65

2181431.85

2181185.15

2181030.45

2180984.35

2180608.45

2180512.95

2180482.65

2180578.65

2180738.05

EASTING

5987076.96

5986606.08

5986326.57

5986091.47

5985896.97

5985395.57

5984950.27

5984431.57

5983871.87

5983749.77

5983258.17

5983030.97

5982755.97

5982461.67

5982244.97

SAN RAFAEL CREEK

INNER CANAL

ALIGNMENT CONTROL POINT TABLE

POINT #

∠24

∠25

∠26

∠27

∠28

∠29

∠30

∠31

∠32

∠33

∠34

∠35

∠36

∠37

∠38

NORTHING

2181067.35

2181121.75

2181206.95

2181246.85

2181583.65

2181487.25

2181540.95

2181637.25

2181721.75

2181778.35

2181641.55

2181305.55

2181264.65

2181172.85

2181111.65

EASTING

5981952.57

5981880.67

5981713.67

5981470.57

5980165.07

5980138.27

5979945.57

5979972.37

5979668.87

5979689.27

5980180.57

5981482.97

5981732.57

5981912.57

5981993.57

SAN RAFAEL CREEK

INNER CANAL

ALIGNMENT CONTROL POINT TABLE

POINT #

∠39

∠40

∠41

∠42

∠43

∠44

∠45

∠46

∠47

∠48

∠49

∠50

∠51

∠52

NORTHING

2180782.65

2180632.75

2180543.75

2180571.65

2180660.75

2181037.35

2181087.55

2181241.65

2181484.65

2181755.85

2182021.75

2182084.85

2182065.05

2181719.45

EASTING

5982285.67

5982489.47

5982762.27

5983015.77

5983227.77

5983720.27

5983853.17

5984410.57

5984921.77

5985365.97

5985874.27

5986084.97

5986341.67

5987101.87

SAN RAFAEL CREEK

CENTERLINE

ALIGNMENT CONTROL POINT TABLE

POINT #

C1

C2

C3

C4

C5

C6

C7

C8

C9

C10

C11

C12

C13

C14

C15

C16

C17

C18

C19

C20

C21

NORTHING

2176566.40

2181692.15

2182035.55

2182054.45

2181993.85

2181729.75

2181458.25

2181213.45

2181058.95

2181010.85

2180634.65

2180542.35

2180513.25

2180605.75

2180760.35

2181089.55

2181147.35

2181235.75

2181276.25

2181612.05

2181750.05

EASTING

5998362.79

5987089.37

5986334.07

5986088.27

5985885.57

5985380.77

5984935.97

5984421.07

5983862.47

5983735.07

5983242.97

5983023.37

5982759.17

5982475.57

5982265.37

5981973.07

5981896.67

5981723.17

5981476.77

5980172.77

5979679.07

-5 +0

0+

5+

+0

+0

+0

+0

+0

+0

+0

+0

+0

+0

+0

+0

+0

+0

+0

+0

+0

+0

0+

5+

0+

5+

0+

5+

0+

135+00140+00145+00

0+

155+00

160+00

5+

0+

5+

0+

5+

0+

5+

0+

∠27

∠35 C19

REACH 0

STA -5+00 TO STA 0+00

REACH 2

STA 57+00 TO STA 118+84

REACH 1

STA 0+00 TO STA 57+00

REACH 4

STA 175+00 TO STA 200+71

(NOT IN CONTRACT)

REACH 3A

STA 118+84 TO STA 153+00

REACH 3BSTA 153+00 TO STA 175+00

0 700' 1400'SCALE: 1" = 700'

KEY MAP AND CHANNEL CONTROL POINT TABLES

A1

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AP

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G003

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O

C O

N

TR

AC

T

N O

PR

O

JE

C

T N

O

A

B

C

D

E

F

G

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K

L

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N

P

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S

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P

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W O

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SO

LI

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AT

IO

N

W

2P

6R A0

W

2P

6C

XX

XX

SR

C

-1 -2

JU

LY

F.

S U

N

C108 C107

C106 C105

C104

C103

C102

C101

SAN RAFAEL

EAST MARIN

ISLAND

WEST MARIN

ISLAND

S A N R A F A E L B A Y

SF-11 SITE CONTROL POINTS

POINT

A

B

C

D

E

F

G

H

I

J

K

L

M

N

O

P

Q

R

S

T

U

V

NORTHING

2127907

2128164

2128233

2127907

2127179

2126388

2126262

2126235

2126249

2126412

2126708

2126707

2126658

2126658

2126632

2126632

2126732

2126732

2126907

2127907

2127907

2127234

EASTING

6005195

6005567

6005967

6006675

6006933

6006467

6006167

6005967

6005767

6005367

6005085

6005367

6005367

6005767

6005767

6005967

6005967

6006167

6006467

6005967

6005567

6005935

SF-DODS

SF-DODS CENTER COORDINATES

POINT

SF-DODS

NORTHING

2072906

EASTING

5698119

LATITUDE

N37° 39' 00"

LONGITUDE

W123° 29' 00"

OVAL SHAPED SITE:

4 NAUTICAL MILES LONG

(NORTH / SOUTH) AXIS

2.5 NAUTICAL MILES SHORT

(EAST / WEST) AXIS

A

B C

D

E

F

GHI

J

K L

M N

O P

Q R

S

TU

V

AREA

H

AREA

C

AREA

G

AREA

F

AREA

E

AREA

D

AREA

A

AREA

B

AREA

I

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U .S

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SF-DODS

EPA SECTION 102

OCEAN DISPOSAL SITE

SF

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ALCATRAZ ISLAND (SF-11) PLACEMENT SITE

MATERIAL DISPOSED OF ONLY IN SUB-AREA C, H, AND I (SHADED AREAS)

SAN

FRANCISCO

OAKLAND

RICHMOND

SAN BRUNO

REDWOOD CITYP A C I F I C O C E A N

S A N F R A N C I S C O B A Y

S A N P A B L O B A Y

NOVATO VALLEJO

PINOLE

SAN PABLO

ALAMEDA

ALBANY

EL CERRITO

BERKELEY

EMERYVILLE

PIEDMONT

ORINDA

SAUSALITO

TREASURE

ISLAND

TIBURON

MILL VALLEY

SAN RAFAEL

DALY CITY

COLMA

PACIFICA

SAN FRANCISCO

INTERNATIONAL

AIRPORT

SOUTH

SAN FRANCISCO

MILLBRAE

BURLINGAME

FOSTER CITY

SAN CARLOS

BELMONT

MATEO - HAYWARD BRIDGE

SAN

BRIDGE

SF

- O

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ND

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BRIDGE

RICHMOND BRIDGE

G004

2.5 MILE 500 MILE0SCALE: 1" = 2.5 MILES

SF-11 AND SF-DODS DISPOSAL SITESA1

800'0 400'

GRAPHIC SCALE

SAN RAFAEL

CREEK

PROJECT

REACH 1

STA 0+00 TO STA 57+00

E 5998500

E 5998000

E 5997500

E 5997000

E 5998000

E 5997500

E 5997000

E 5996500

E 5996000

-5 +0

-4 +0

-3 +0

-2 +0

-1 +0

0+

1+

2+

3+

4+

5+

6+

7+

8+

9+

+0

+0

+0

+0

+0

+0

+0

+0

+0

+0

+0

+0

N 2176000

N 2176500

N 2178000

N 2177000 N 2177000

REACH 0

STA -5+00 TO STA 0+00

A C R O S S T H E F L A T 5.7 5.8 6.2 5.7 5.7 5.7 5.9 5.9 5.5 5.5

6.2 6.1 6.8 5.9 6.0 6.1 6.5 6.1 6.0 6.0

7.2 7.1 7.4 7.0 6.9 7.0 7.1 6.9 6.8 6.9

9.6 9.6 9.5 9.5 9.3 9.3 9.4 9.4 9.1 9.0 9.0

14.3 14.2 14.0 13.9 13.9 13.8 13.4 13.4 13.2 13.0 12.9 12.8 12.7

SF Bay North Channel Light 175.3

5.2 5.3 5.2 5.3 5.3 5.3 5.4 5.6 5.4

5.2 5.2 5.3 5.2 5.2 5.2 5.1 5.2 5.4 5.3

5.1 5.1 5.1 5.1 5.2 5.1 5.1 5.1 5.4 5.2 5.1

5.1 5.2 5.2 5.1 5.2 5.1 5.1 5.3 5.3

5.1 5.1 5.1 5.2 5.2 5.3 5.0 5.3 5.3

5.4 5.2 5.2 5.3 5.2 5.0 5.4 5.2

5.0 5.0 4.9 5.2 5.1 5.0 5.1 5.2 5.3

4.9 5.0 5.2 5.2 5.2 5.1 4.9 5.3 5.2

5.0 5.0 5.2 5.2 5.4 5.0 4.9 5.3 5.1

5.0 5.1 5.2 5.2 5.3 5.1 4.9 5.4 5.1

5.2 5.1 5.1 5.3 5.3 5.3 5.1 5.1 5.4 5.2

5.2 5.2 5.4 5.2 5.2 5.1 5.2 5.6 5.3

5.2 5.1 5.2 5.3 5.2 5.2 5.1 5.1 5.5 5.2

5.2 5.3 5.3 5.3 5.2 5.2 5.1 5.2 5.4 5.1

5.2 5.3 5.4 5.3 5.3 5.3 5.2 5.3 5.3 5.1

5.3 5.3 5.4 5.4 5.4 5.4 5.4 5.0 5.3 5.2

5.4 5.3 5.4 5.5 5.5 5.6 5.2 5.0 5.2 5.3

5.3 5.4 5.4 5.5 5.7 5.5 5.2 5.1 5.4 5.3

5.3 5.4 5.4 5.6 5.6 5.4 5.2 5.1 5.3 5.3 5.3

5.4 5.5 5.7 5.5 5.4 5.3 5.1 5.4 5.4

5.4 5.6 5.7 5.4 5.4 5.3 5.1 5.4 5.4

5.4 5.6 5.7 5.7 5.5 5.5 5.3 5.2 5.4 5.4

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BEACON

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US Army Corps of Engineers

U .S

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N N

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A

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C

D

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F

G

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N

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XX

XX

SR

C

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JU

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F.

S U

N

C101 C102

C103 C104

C105 C106 C107 C108

KEY MAP

NOT TO SCALE

100' 200'0SCALE: 1" = 100'

DREDGING PLAN - STA -5+00 TO STA 19+50

A1

D R

ED

G

IN

G

P

LA

N

ST

A -5

+0

TO

S

TA

9+

C101

E 5996000

E 5995500

E 5995000

E 5994500

E 5995500

E 5995000

E 5994500

E 5994000

N 2179000

+0

+0

+0

+0

+0

+0

+0

+0

+0

+0

+0

+0

+0

+0

+0

+0

+0

+0

+0

+0

+0

+0

+0

+0

+0

+0

+0

+0

+0

+0

N 2178000

N 2179000

N 2178000 N 2178000

N 2178500

N 2177000 N 2177000

A C R O S S T H E F L A T

Light 1 5.4 5.5 5.7 5.5 5.4 5.3 5.1 5.4 5.4

5.4 5.6 5.7 5.4 5.4 5.3 5.1 5.4 5.4

5.4 5.6 5.7 5.7 5.5 5.5 5.3 5.2 5.4 5.4

5.4 5.7 5.6 5.7 5.6 5.6 5.4 5.3 5.5 5.4

5.8 5.7 5.7 5.8 5.7 5.7 5.5 5.5 5.6 5.5

5.8 5.8 5.9 5.9 5.9 5.8 5.7 5.6 5.8 5.7

5.9 6.0 6.1 6.1 6.1 6.0 5.9 5.9 6.0 5.9

6.0 6.3 6.2 6.3 6.3 6.2 6.0 5.9 6.2 6.1

6.3 6.4 6.3 6.4 6.4 6.3 6.1 6.2 6.2 6.0

6.4 6.5 6.5 6.6 6.5 6.4 6.3 6.4 6.3

6.5 6.6 6.7 6.6 6.6 6.4 6.4 6.4 6.3

6.6 6.7 6.8 6.7 6.7 6.6 6.5 6.7 6.5

6.7 6.8 6.8 6.8 6.8 6.7 6.6 6.7 6.5

6.5 6.8 6.8 6.9 6.9 6.8 6.7 6.6 6.8 6.5

6.3 7.0 6.8 7.0 6.9 6.9 6.7 6.6 6.6 6.3

6.5 7.0 6.9 6.9 6.8 6.7 6.6 6.6 6.3

6.4 6.7 7.0 6.9 6.8 6.7 6.7 6.7 6.3

6.1 6.4 6.5 6.9 6.8 6.7 6.7 6.6 6.6 6.2

5.8 6.2 6.3 6.6 6.8 6.6 6.6 6.5 6.5 6.1

5.4 5.8 6.0 6.2 6.6 6.3 6.4 6.2 6.3 5.9

5.0 5.2 5.7 5.9 6.3 6.1 6.0 5.9 6.0 5.5

4.6 4.9 5.4 5.6 6.1 6.0 5.7 5.6 5.8 5.3

4.4 4.6 5.0 5.4 5.9 5.7 5.6 5.6 5.5 5.1

3.9 4.4 4.6 5.2 5.7 5.5 5.6 5.4 5.2 4.7

3.8 4.1 4.6 5.0 5.9 5.5 5.4 5.2 5.0 4.3

4.0 4.6 5.1 5.8 5.5 5.4 5.1 4.8 4.2

4.1 4.6 5.2 5.8 5.5 5.6 5.2 4.8 4.0

4.2 4.5 5.2 5.7 5.6 5.5 5.3 4.8

4.4 4.8 5.3 5.8 5.7 5.6 5.4 4.9

4.4 4.9 5.3 5.9 5.8 5.7 5.4 5.1

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0.0 TO -6.0'

-6.0' TO -7.0'

0.0' TO -8.0'

-8.0' TO -9.0'

BEACON

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SHEET ID

US Army Corps of Engineers

U .S

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PR

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A

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XX

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JU

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C101 C102

C103 C104

C105 C106 C107 C108

KEY MAP

NOT TO SCALE

100' 200'0SCALE: 1" = 100'

DREDGING PLAN - STA 19+50 TO STA 46+50

A1

D R

ED

G

IN

G

P

LA

N

ST

A

+5

TO

S

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6+

C102

REACH 2

STA 57+00 TO STA 118+84

E 5993500

E 5993000

E 5992000

E 5992500

E 5993000

E 5992500

E 5992000

E 5991500

N 2179000

+0

+0

+0

+0

+0

+0

+0

+0

+0

+0

+0

+0

+0

+0

+0

+0

+0

+0

+0

+0

+0

+0

+0

+0

+0

+0

+0

+0

+0

+0

N 2179000

N 2179500

N 2180500

N 2180500

N 2179500

N 2179000

N 2178000 N 2178000

N 2178500

A C R O S S T H E F L A T A C R O S S T H E F L A T

Light 3 Light 1

4.1 4.6 5.2 5.8 5.5 5.6 5.2 4.8 4.0

4.2 4.5 5.2 5.7 5.6 5.5 5.3 4.8

4.4 4.8 5.3 5.8 5.7 5.6 5.4 4.9

4.4 4.9 5.3 5.9 5.8 5.7 5.4 5.1

4.2 4.9 5.6 5.9 6.0 5.9 5.6 5.1

4.5 5.2 5.8 6.0 6.0 6.0 5.7 5.3

4.5 5.3 6.0 6.1 6.0 6.0 5.6 5.2 4.5

4.6 5.4 5.9 6.0 5.9 5.9 5.6 5.2 4.3

4.8 5.5 5.9 6.0 5.9 5.9 5.7 5.2 4.3

4.8 5.3 5.8 6.0 5.9 5.9 5.6 5.1 4.4

4.7 5.3 5.8 5.9 6.1 5.9 5.7 5.4 4.5

4.6 5.3 5.8 5.9 5.7 5.8 5.6 5.4 4.5

4.4 5.1 5.9 5.8 5.7 5.7 5.7 5.3

4.3 5.1 5.9 5.8 5.7 5.8 5.5 5.2

4.2 5.1 5.9 5.9 5.9 5.9 5.6 5.2

4.4 5.3 5.9 5.9 5.9 6.0 5.6 5.2

4.4 5.3 5.9 6.0 5.9 6.0 5.6 5.3

4.4 5.4 5.9 5.9 5.9 5.9 5.7 5.3

4.5 5.3 5.9 5.9 6.0 5.9 5.7 5.2 4.3

4.7 5.5 5.9 6.0 5.9 6.0 5.7 5.3 4.2

4.7 5.4 5.9 5.9 6.0 6.0 5.7 5.3 4.3

3.9 4.6 5.3 5.9 6.0 6.0 5.9 5.6 5.4 4.3

4.4 4.6 5.3 6.0 6.1 6.1 5.9 5.6 5.4 4.4

4.7 5.1 5.9 6.0 6.0 5.9 5.6 4.9 4.0

4.4 5.3 5.9 5.9 5.9 5.9 5.5 4.9 4.2

4.4 5.2 5.9 5.9 5.9 5.8 5.6 5.0

4.5 5.2 5.8 5.9 5.9 5.8 5.7 5.1

4.5 5.2 5.8 5.9 5.9 5.7 5.6 5.0

4.7 5.4 5.7 5.8 5.8 5.7 5.5 4.8

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E 5991000

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N 2181500

+0

+0

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A C R O S S T H E F L A T

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4.7 5.4 5.7 5.8 5.8 5.7 5.5 4.8

4.5 5.4 5.6 5.7 5.7 5.7 5.4 4.8

4.4 5.3 5.6 5.7 5.7 5.6 5.3 4.8

4.5 5.4 5.6 5.7 5.7 5.6 5.2 4.7 3.8

4.4 5.4 5.6 5.7 5.8 5.6 5.3 4.6 4.1

4.4 5.3 5.5 5.7 5.8 5.6 5.3 4.8

4.4 5.4 5.6 5.6 5.7 5.5 5.2 4.7

4.5 5.0 5.6 5.5 5.7 5.5 5.2 4.7

4.2 5.1 5.5 5.6 5.7 5.5 5.4 4.7

4.2 5.2 5.5 5.7 5.7 5.5 5.3 4.7

4.1 4.8 5.5 5.7 5.7 5.5 5.2 4.7 3.9

4.0 4.8 5.5 5.7 5.6 5.4 5.2 4.8

4.0 4.8 5.5 5.6 5.6 5.4 5.3 4.8

4.0 4.9 5.6 5.6 5.6 5.5 5.3 4.9

3.8 4.6 5.4 5.5 5.5 5.4 5.2 5.0 4.4

3.4 4.5 5.3 5.5 5.3 5.2 4.8 4.3 3.4

3.4 4.6 5.2 5.4 5.3 5.1 4.8 4.2

3.5 4.8 5.2 5.2 5.3 5.1 4.6 3.9

3.2 4.6 5.2 5.2 5.2 5.1 4.5 3.7

3.1 4.4 5.1 5.2 5.1 5.0 4.6 3.8

3.2 4.4 5.1 5.1 5.1 4.9 4.5 3.8

3.4 4.4 5.0 5.1 5.2 4.8 4.4 3.5

3.5 4.4 5.0 5.1 5.2 4.9 4.4 3.6

3.6 4.5 5.0 5.2 5.2 4.9 4.4 3.4

3.5 4.5 5.0 5.3 5.2 5.0 4.5 3.3

3.3 4.7 5.1 5.2 5.1 5.1 4.5 3.2

3.3 4.8 5.0 5.2 5.1 5.1 4.6 3.3

3.3 4.6 5.0 5.3 5.2 5.2 4.4 3.2

3.3 4.7 5.0 5.3 5.3 5.1 4.4 3.1

3.1 4.9 5.1 5.4 5.4 5.1 4.3 3.1

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A1

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REACH 3A

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N 2181500

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0+

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N 2180500

N 2181500

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N 2182500

E 5988000

E 5987500

E 5987500

E 5987000

E 5987000

E 5986500

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N 2180500

A C R O S S T H E F L A T S A N R A F A E L C R E E K

Light 7

San Rafael Creek

Range Front LightLight 6

E X

E X

E X

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3.3 4.6 5.0 5.3 5.2 5.2 4.4 3.2

3.3 4.7 5.0 5.3 5.3 5.1 4.4 3.1

3.1 4.9 5.1 5.4 5.4 5.1 4.3 3.1

3.0 4.6 5.1 5.3 5.3 5.2 4.2 3.3

3.0 4.7 5.2 5.5 5.4 5.2 4.4 3.1

3.1 4.6 5.3 5.5 5.3 5.3 4.5 3.4

3.0 4.6 5.4 5.6 5.5 5.3 4.7 3.8

2.8 4.6 5.5 5.6 5.7 5.5 4.7 4.2

2.8 4.7 5.4 5.7 5.8 5.6 4.7 4.1

3.0 4.8 5.4 5.8 5.9 5.7 4.9 3.9

2.9 4.7 5.6 5.9 6.0 5.9 5.1 4.0

3.1 4.7 5.6 6.1 6.1 5.9 5.2 4.1

3.1 4.7 5.7 6.3 6.3 6.1 5.4 4.2

3.3 5.0 5.7 6.4 6.6 6.3 5.8 4.4

3.3 4.9 6.0 6.6 6.8 6.5 5.9 4.6

3.0 5.0 6.5 6.8 7.0 6.7 6.1 4.7

3.1 4.9 6.2 6.7 6.9 6.9 6.2 4.6

2.8 5.2 6.2 6.7 6.9 6.8 6.4 4.8

2.9 4.5 6.3 6.6 7.0 6.9 6.5 5.3 3.0

2.1 3.8 5.1 6.0 6.9 6.9 6.3 5.1 3.1

3.8 4.8 5.7 6.8 6.8 6.1 4.8 2.9

4.1 5.1 6.6 6.9 6.4 5.1

3.8 5.3 6.5 7.0 6.6

3.3 5.3 6.8 7.1 7.0

3.0 5.2 6.9 7.2 7.3

4.8 5.8 7.1 7.3 7.3

4.1 5.8 6.9 7.1

5.3 6.3 7.0 6.8

4.5 5.9 6.8 7.1 6.6

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5.7 7.1 7.7 6.9

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N 2181500

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123+00

124+00

125+00

126+00

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8+

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N 2181500

N 2182500

N 2180500

E

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San Rafael Creek

Range Front Light S A N R A F A E L C R E E K

CANAL ST

CANAL ST

CANAL ST

POINT SAN PEDRO RD

POINT SAN PEDRO RD

SSX

SSX

E

X

E X

E

X

E X

E X

E

X

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E

X

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E X

E X

E X

E X

E X

E X

EX

EX

EX

EX

EX

EX

EX

3.35.3

3.05.26.97.27.3

4.85.87.17.37.3

4.15.86.97.1

5.36.37.06.8

4.55.96.87.16.6 5.06.47.37.4 5.77.17.76.9 5.77.17.57.1

6.2 7.1 7.4 6.9

5.5 6.8 7.4 7.0 6.6

5.5 6.8 7.3 7.0

5.4 6.7 7.1 7.0

5.4 6.8 7.5 7.0

5.5 6.6 7.0 6.9

5.9 6.2 6.4 6.1

5.1 5.3 6.1 6.9 6.8

4.1 4.0 4.6 5.4 6.3 6.1

5.4 5.4 5.0 5.3 5.9

4.9 5.1 5.2 5.6

4.9 5.15.7 6.16.2

5.35.35.35.9

4.85.45.55.6

5.45.85.45.4

5.65.65.55.7

5.25.25.95.7 5.85.95.75.5

5.24.85.45.86.1

6.06.05.85.65.8

4.65.96.06.06.25.6

6.46.66.56.86.75.5

5.24.95.85.96.3 6.06.36.36.1

REACH 3B

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2P

6C

XX

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-1 -2

JU

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C101 C102

C103 C104

C105 C106 C107 C108

KEY MAP

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100' 200'0SCALE: 1" = 100'

DREDGING PLAN - STA 128+50 TO STA 153+50

A1

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ST

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C106

SANITATION DISTRICT

SEWER PIPELINES

ELEV. VARIES FROM -50 FT TO -56 FT MLLW

SS

X

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X

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X

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X

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X

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X

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X

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X

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X

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X

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X

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X

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REACH 4

STA 175+00 TO STA 200+71

NOT IN CONTRACT

N 2181500 N 2181500

N 2180500

N 2181500

E 5983500

N 2181000 N 2181000

E 5983500

150+00

151+00

152+00

153+00

154+00

155+00

156+00

157+00

158+00

159+00

160+00

161+00

162+00

163+00

164+00

5+

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0+

1+

2+

3+

4+

5+

6+

7+

8+

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0+

1+

2+

3+

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N 2180500

N 2182000

E 5983000

E 5983000

E 5982500

E 5982500

E 5982000

E 5982000

E 5981500

N 2180500

E 5984000

S A

N R

A F

A E

L C

R E

E K

S A

N R

A F

A E

L C

R E

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REACH 3B

STA 153+00 TO STA 175+00

CANAL ST

CANAL ST

CANAL ST

CANAL ST

3RD ST

3RD ST

POINT SAN PEDRO RD

POINT SAN PEDRO RD

5.2 4.8 5.4 5.8 6.1

6.0 6.0 5.8 5.6 5.8

4.6 5.9 6.0 6.0 6.2 5.6

6.4 6.6 6.5 6.8 6.7 5.5

5.2 4.9 5.8 5.9 6.3

6.0 6.3 6.3 6.1

5.15.86.26.36.6

4.45.36.06.56.4

5.35.95.85.6

5.55.86.36.3

5.46.06.36.2

5.05.45.96.36.1

5.2 5.7 6.0 6.2 6.2

5.4 5.9 6.3 6.4 6.2

6.4 6.5 6.4 6.3

5.7 6.1 6.2 5.6 5.6

5.9 6.2 6.1 5.8 6.8 6.9

4.55.86.46.65.96.0

4.86.47.26.65.7

6.26.46.76.56.5 6.66.36.86.36.0

5.96.76.36.26.0 6.36.16.46.66.2 6.26.26.36.25.7 6.46.26.66.66.8 5.86.26.86.76.0 6.26.36.96.76.7 5.56.06.87.26.4 5.76.36.66.6 5.66.27.17.2

6.2 6.3 7.2 6.7

5.5 6.6 6.4 6.9 7.1

6.8 6.8 7.0 7.0

5.76.06.6 7.16.6

5.96.46.76.66.5

REACH 3B

STA 153+00 TO STA 175+00

M

ATCH LINE - STA 153+50

M A

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0.0 TO -6.0'

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BEACON

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US Army Corps of Engineers

U .S

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2 43 65 87 109 1211 1413 1615 1817 2019

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D D

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N N

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C O

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N O

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F

G

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N

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XX

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JU

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C101 C102

C103 C104

C105 C106 C107 C108

KEY MAP

NOT TO SCALE

100' 200'0SCALE: 1" = 100'

DREDGING PLAN - STA 153+50 TO STA 181+50

A1

D R

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G

IN

G

P

LA

N

ST

A

3+

T O

S

TA

+5

C107

REACH 4

STA 175+00 TO STA 200+71

NOT IN CONTRACT

N 2181500

N 2181500

N 2182000

E 5981000

N 2181000

N 2181000

0+

1+

2+

3+

4+

5+

6+

7+

8+

9+

0+

1+

2+

3+

4+

5+

N 2182000

E 5980500

E 5980000

E 5979500

E 5979000

E 5981500

E 5981000

E 5980500

E 5980000

E 5979500

N 2180500

S A N R A F A E L C R E E K

6+

7+

8+

9+

0+

0+

G R

A N

D A

V E

2ND ST

3RD ST

3RD ST

3RD ST

G R

A N

D A

V E

3RD ST

3RD ST

1016.2 6.3 7.2 6.7

5.5 6.6 6.4 6.9 7.1

6.8 6.8 7.0 7.0

5.7 6.0 6.6 7.1 6.6

5.9 6.4 6.7 6.6 6.5

6.1 6.3 6.9 6.5 5.9

6.1 6.8 6.5 5.8

5.9 7.1 7.1 6.4

6.5 7.3 7.0 6.0 5.7

5.9 6.8 6.4 6.2

6.2 6.8 7.0 6.3

5.7 6.3 6.5 6.0

5.8 6.5 6.6 6.4

5.7 6.2 6.3 6.2

5.9 6.4 6.5 6.0

4.9 5.1 5.5 5.9 6.0 6.1 5.9

4.5 4.5 4.7 4.6 4.3 4.9 5.5 4.8 5.1 5.9 5.8

4.6 4.2 5.3 5.3 5.4 5.3 5.6 5.4 4.9 5.1 5.3 5.7

5.1 4.9 4.9 4.8 5.1 5.1 5.4 5.9 6.0 6.0 5.5 5.2

4.8 4.7 4.7 4.6 4.7 4.8 5.4 5.2 3.9 3.8 4.1

4.0 3.7 3.5 3.4 2.8 3.3 3.8 5.2

2.2 3.1 4.8 5.8

1.8 2.1 3.7

M A

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BEACON

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C105 C106 C107 C108

KEY MAP

NOT TO SCALE

100' 200'0SCALE: 1" = 100'

DREDGING PLAN - STA 181+50 TO STA 200+71

A1

D R

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G

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1+

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C108

2026-07-28T16:41:31-0700
Erika Powell, P.E.
2026-07-29T08:52:22-0700
Robin K. Inaba

File details come from the government source that posted it. Updated .