BodegaBayO&M_2017_(SOLICITATION).pdf

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STATUS 90% / SOLICITATION

US Army Corps of Engineers

San Francisco District

MARIN COUNTY, CALIFORNIA

BODEGA BAY HARBOR

MAINTENANCE DREDGING PROJECT

SOLICITATION NO: W912P7-17-B-0007

CONTRACT NO: W912P7-17-C-xxxx

ISSUE DATE: JUNE 2017

SUBMITTED BY:

SON T. HA, P.E. DATE

CHIEF, ENGINEERING BRANCH

APPROVED BY:

TERRY F. BAUTISTA, P.E. DATE

CHIEF, ENGINEERING AND TECHNICAL SERVICES DIVISION

PREPARED UNDER THE DIRECTION OF:

JOHN C. MORROW

LT. COLONEL, C.E., DISTRICT COMMANDER

LOCATION MAP

NOT TO SCALE

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 ER1110-1-8152.

SIGNATURES AFFIXED BELOW INDICATE OFFICIAL RECOMMENDATION

AND APPROVAL OF DRAWINGS IN THIS SET.

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AREA

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FARALLON

ISLANDS

SAUSALITO

SAN

FRANCISCO

HALF MOON

BAY

SANTA ROSA

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BODEGA BAY

Z

N037° 45' 43.36"

W122° 34' 32.83"

X

N037° 45' 44.75"

W122° 34' 27.91"

X

N037° 45' 14.75"

W122° 34' 15.91"

Y

N037° 45' 11.00"

W122° 34' 28.82"

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ACCEPTANCE REACHES

REACH 1: BODEGA BAY CHANNEL STA 0+00 - STA 100+00

REACH 2: BODEGA BAY CHANNEL STA100+00 - STA 132+00

AND SPUD POINT MARINA CHANNEL STA 0+00 - STA 10+00

REACH 3: BODEGA BAY CHANNEL STA132+00 - STA 145+00

REACH 4: BODEGA BAY CHANNEL STA145+00 - STA 183+00

USE SF-8 DISPOSAL SITE FOR SANDY MATERIALS DREDGED FROM REACH 1.

USE SF-DODS DISPOSAL SITE FOR MATERIALS DREDGED FROM REACHES 2 THROUGH 4.

DISPOSAL SITES

SF-8:

A - E 5,947,978.6, N 2,101,983.2

B - E 5,948,871.1, N 2,098,826.8

C - E 5,962,071.5, N 2,106,724.2

D - E 5,962,958.0, N 2,103,671.1

1 - E 5,948,424.8, N 2,100,405.0

C02 - E 5,962,509.9, N 2,105,198.5

SF-DODS:

EPA SECTION 102 OCEAN DISPOSAL SITE.

OVAL SHAPED SITE: 37°39.0'N, 123°29.0'W

4 NAUTICAL MILES(NM) LONG (NORTH / SOUTH) AXIS

2.5 NAUTICAL MILES SHORT (EAST / WEST) AXIS

BENCHMARKS FOR REACH 1 THROUGH REACH 4

TIDE GAGE AT BODEGA BAY COAST GUARD STATION DOCK

BASED ON ELEVATION OF 17.50' MLLW ON COAST GUARD

BRASS CAP PROPERTY CORNER. ELEVATION ESTABLISHED

BY DIFFERENTIAL LEVELS RUN FROM "TIDAL 4 = ROAD" USED,

1941, ELEVATION 20.05' MLLW LOCATED IN THE TOWN OF

BODEGA BAY.

2' ALLOWABLE OVERDEPTH

(PAID AND NON-PAID)

EL. 0.00 FEET M.L.L.W.

1' ALLOWABLE (PAID) OVERDEPTH

PROJECT DEPTH

NOTE:

FOR ALLOWABLE DREDGING METHODS SEE SECTION 35 20 23 DREDGING WITHIN THE SPECIFICATIONS.

1' ALLOWABLE OVERDEPTH (NON-PAID)

GENERAL NOTES:

BATHYMETRIC SURVEYS PERFORMED BY THE U.S ARMY CORPS OF

ENGINEERS, SAN FRANCISCO DISTRICT, BETWEEN 28 -29 JANUARY

2017.

BATHYMETRIC SURVEY SOUNDINGS ARE BASED ON THE DATUM OF

MEAN LOWER LOW WATER (MLLW) AT THE LOCALITY NAVD 1988

DATUM.

DRAWINGS ARE NOT TO BE USED AS NAVIGATION CHARTS.

INFORMATION SHOWN ON THE DRAWINGS IS BASED ON BATHYMETRIC

SURVEYS MADE ON THE DATES INDICATED AND CAN ONLY BE

CONSIDERED INDICATING THE GENERAL CONDITIONS EXISTING AT

THAT TIME.

BATHYMETRIC SURVEY SOUNDINGS WERE TAKEN BY FATHOMETER

(MULTI-BEAM SURVEY EQUIPMENT) AND ARE SHOWN TO THE

NEAREST TENTH OF A FOOT.

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.

THE PROJECT DEPTH IS -12 FEET MLLW FROM STA 0+00 TO STA 132+00

(BASE), -12 FEET MLLW FROM STA 132+00 TO STA 145+00 (OPTION 1),

AND -12 FEET MLLW FROM STA 145+00 TO STA 183+00 (OPTION 2). THE

DISPOSAL SITES ARE GOVERNMENT FURNISHED SF-8 AND SF-DODS.

SEE SECTION BID SCHEDULE FOR SITE DETAILS.

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.

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.

BEACON: A NAVIGATION DEVICE WITH A FIXED STRUCTURAL

SUPPORT USED TO HELP SHIPS NAVIGATE TO THEIR DESTINATION.

BUOY: A FLOATING NAVIGATION DEVICE THAT IS ANCHORED TO A

CHAIN WHICH ALLOWS FOR A CERTAIN AMOUNT OF DRIFT. BUOYS

ARE USED TO HELP SHIPS NAVIGATE TO THEIR DESTINATION.

SHEET SHEET

NUMBER ID DESCRIPTION

01 G-01 COVERSHEET

02 G-02 SCHEDULE OF DRAWINGS, DISPOSAL SITE,

GENERAL NOTES AND TYPICAL DREDGING SECTION

03 G-03 PROJECT SITE REFERENCE

04 C-01 DREDGING PLAN

STA 0+00 - STA 21+00

05 C-02 DREDGING PLAN

STA 21+00 - STA 62+00

06 C-03 DREDGING PLAN

STA 62+00 - STA 91+00

07 C-04 DREDGING PLAN

STA 91+00 - STA 119+00

08 C-05 DREDGING PLAN

STA 119+00 - STA 154+00

09 C-06 DREDGING PLAN

STA 155+00 - STA 183+02

SCHEDULE OF DRAWINGS

TYPICAL DREDGING SECTION

NOT TO SCALE

MATERIAL TO BE DREDGED (PAID)

NO DREDGING ON SIDE SLOPES

(SEE NOTE 1)

CHARACTERIZATION DEPTH

OPTIONAL TOE EXCAVATION

OPTIONAL TOE EXCAVATION

EXISTING CHANNEL BOTTOM

SIDE-SLOPE PRISM

CHANNEL WIDTH VARIES

SEE PLAN

SF-DODS & SF-8 DISPOSAL SITES

NOT TO SCALE

EPA SECTION 102

OCEAN DISPOSAL SITE

SF-DODS

DISPOSAL SITE

SF-8

123° 30' 0" W 123° 15' 0" W 123° 0' 0" W 122° 45' 0" W 122° 30' 0" W

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