B.08 Plans, MCSF Blount Island (15 May 23).pdf

PDF 7 MB Posted May 31, 2023

Attached to: Marine Corps Support Facility - Blount Island, Maintenance Dredging, 38-foot Project, Duval County, Florida
Solicitation number: W912EP23B0013
Issued by: Department of the Army Corps of Engineers Engineering District Jacksonville

About this file

Written by GovTribe AI · Dec 28, 2023

This document provides details of a federal contract opportunity for maintenance dredging services. The U.S. Army Corps of Engineers is seeking bids for dredging at the Marine Corps Support Facility - Blount Island in Duval County, Florida to a depth of 38 feet plus an additional two feet of allowable overdepth. Dredged materials will be disposed of at the Dayson Island Disposal Area. The invitation for bid will be issued on May 31st, 2023 with bids due July 3rd, 2023. A pre-bid teleconference will be held on June 16th, 2023. The work includes environmental monitoring and turbidity monitoring at the disposal site. The contract value is estimated between $2-7 million and has a period of performance of 126 days. This opportunity is set aside for small businesses with a size standard of $37 million. The NAICS code is 237990.

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Other files

File	Type	Posted
C.04 Bid Abstract, MCSF Blount Island (W912EP23B0013).pdf	PDF	Jul 5, 2023
B.08 Am 0001, MCSF Blount Island.pdf	PDF	Jun 23, 2023
B.07 Site Visit Attendee List, MCSF Blount Island.pdf	PDF	Jun 23, 2023
B.08 Specs, Vol. 1, MCSF Blount Island (30 May 23).pdf	PDF	May 31, 2023
B.08 GDR, MCSF Blount Island.pdf	PDF	May 31, 2023
B.08 Specs, Vol. 2, MCSF Blount Island (5 May 23).pdf	PDF	May 31, 2023

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US Army Corps of Engineers

U .S

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US Army Corps of Engineers ®

SOLICITATION NO.: W912EP23B0013

DUVAL COUNTY, FLORIDA

38-FOOT PROJECT

MAINTENANCE DREDGING

MARINE CORPS SUPPORT FACILITY - BLOUNT ISLAND

JACKSONVILLE DISTRICT

GENERAL

SHEET INDEX

G-01

G-02

COVER AND SHEET INDEX

NOTES, ABBREVIATIONS & SYMBOLOGY

G-03

G-04

C-01

C-02

C-03

C-04

C-05

CIVIL

CHANNEL AND SURVEY CONTROL DATA

PROJECT OVERVIEW

DREDGING PLAN - STA. 27+00 TO STA. 56+09.1

DREDGING CROSS SECTIONS A, B & C

DREDGING CROSS SECTIONS D, E & F

DISPOSAL PLAN - DAYSON ISLAND

DREDGING PLAN - STA. 0+00 TO STA. 27+00

SHEET TITLESHEET ID

BLOUNT

ISLAND

S T A T E O F F L O R I D A

A T L A N T I C O C E A N

D U V A L C O U N T Y

INTRACOASTAL

TER

W A

E N T R A N C E C H A N N E L

S T J O H N S R I V E R

S T J O H N S E R

R I V

NOT TO SCALE

C-06

C-07 DISPOSAL CROSS SECTIONS - DAYSON ISLAND

DREDGING CROSS SECTION G

DAYSON ISLAND

DISPOSAL AREA

(D/A-D)

DAYSON ISLAND

DISPOSAL AREA

(D/A-D)

MARINE CORPS SUPPORT FACILITY

BLOUNT ISLAND

MAINTENANCE DREDGING

MARINE CORPS SUPPORT FACILITY

BLOUNT ISLAND

MAINTENANCE DREDGING

BLOUNT

ISLAND

S T J O H N S

E R

HECKSCHER DRIVE

DAYSON ISLAND

DISPOSAL AREA

(D/A-D)

INTRACO

ASTAL

W A

INTERSTATE 295

S T J O H N S R I V E R E N T R A N C E C H A N N E L

A T L A N T I C O C E A N

R I V

PID AF31

CHANNEL LIMITS

CHANNEL PI POINTS

CB-JH99-22 IDENTIFIER

GS-JH99-22 IDENTIFIER

VB-JH99-22 IDENTIFIER

CORE BORING

GRAB SAMPLE

VIBRACORE BORING

LIGHTED BEACON

GREEN DAYBEACON

RED DAYBEACON

PROJECT DEPTH

RED LIGHTED BUOY / GREEN LIGHTED BUOY

EXISITNG GRADE / BOTTOM

BLVD

D/A-D

EL / ELEV

MLLW

NAVD88

NAD83

NOAA

N.T.S.

OFW

RGE

STA

USACE

USMC

BOULEVARD

CUBIC YARD

DISPOSAL AREA - DAYSON ISLAND

ELEVATION

MEAN LOWER LOW WATER

NORTH AMERICAN VERTICAL DATUM OF 1988

NORTH AMERICAN DATUM OF 1983

NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION

NUMBER

NOT TO SCALE

OUTSTANDING FLORIDA WATERS

POINT OF INTERSECTION

RANGE

STATION

UNITED STATES ARMY CORPS OF ENGINEERS

UNITED STATES MARINE CORPS

1. THIS PROJECT WAS DESIGNED BY THE JACKSONVILLE DISTRICT OF THE U.S. ARMY CORPS OF ENGINEERS.

THE INITIALS OR SIGNATURES AND REGISTRATION DESIGNATIONS OF INDIVIDUALS APPEAR ON THESE PROJECT DOCUMENTS WITHIN THE SCOPE OF THEIR EMPLOYMENT AS REQUIRED BY ER 1110-1-8152.

2. UNLESS OTHERWISE INDICATED, ALL HORIZONTAL POSITIONS ARE SHOWN IN THE STATE PLANE COORDINATE SYSTEM OF 1983, FLORIDA EAST ZONE (0901), AND ARE REFERENCED TO THE 2011

ADJUSTMENT OF THE NORTH AMERICAN DATUM OF 1983 (NAD83(2011)).

3. UNLESS OTHERWISE INDICATED, ALL ELEVATIONS ARE REFERENCED TO THE MEAN LOWER LOW WATER (MLLW) TIDAL DATUM, 1983-2001 EPOCH. MLLW IS REALIZED DURING SURVEY OPERATIONS VIA A KINEMATIC TIDAL DATUM (KTD) MODEL, BASED ON NOAA’S VDATUM PROGRAM AND PUBLISHED NOAA TIDE GAUGE INFORMATION. THE RELATIONSHIP BETWEEN MLLW AND THE NORTH AMERICAN VERTICAL DATUM OF 1988 (NAVD88) VARIES ALONG THE EXTENTS OF A PROJECT; A SINGLE VALUE FROM A PUBLISHED TIDE GAUGE IS NOT TO BE USED FOR AN ENTIRE PROJECT. REFER TO SURVEY NOTES ACCOMPANYING THESE PLANS FOR THE APPLICABLE PROJECT KTD FILE NAME AND TIDAL CALIBRATION/VERIFICATION STATIONS, OR BENCHMARKS TO BE EMPLOYED TO CONDUCT, OR REPRODUCE, A SURVEY. ALL ELEVATIONS SHOWN

ABOVE REFERENCED DATUM ARE ASSIGNED THE PLUS SYMBOL (+).

4. UNLESS OTHERWISE INDICATED, ALL POSITIONS, STATIONING AND ELEVATIONS ARE IN THE UNITS OF U.S.

SURVEY FEET. UNLESS OTHERWISE INDICATED, ALL STATIONS REFER TO DISTANCE ALONG THE CHANNEL

CENTERLINE.

5. UNLESS OTHERWISE INDICATED, ALL PLANIMETRIC FEATURES DEPICTED ON THESE DRAWINGS ARE FOR INFORMATION ONLY AND WERE NOT PHYSICALLY LOCATED BY SURVEY. THE CONTRACTOR IS RESPONSIBLE FOR VERIFYING THE LOCATION OF ALL SUCH FEATURES THAT ARE NECESSARY FOR OR AFFECT THE PERFORMANCE OF CONSTRUCTION OF THIS PROJECT. THE AERIAL IMAGERY SHOWN ON THESE DRAWINGS IS FOR GENERAL INFORMATION ONLY AND IS NOT TO BE USED FOR MEASUREMENTS. AERIAL IMAGERY

FROM BING WITHIN AUTOCAD. DATE OF AERIAL IMAGERY UNKNOWN.

6. THE LEGENDS ON THIS SHEET ARE COMPOSED OF STANDARD SYMBOLS AND ARE PERTINENT TO THE CONDITIONS ON THIS SET OF DRAWINGS TO THE EXTENT APPLICABLE. ADDITIONAL LEGENDS AND/OR ABBREVIATIONS MAY APPEAR IN THIS SET OF DRAWINGS TO INDICATE SPECIFIC CONDITIONS IN LIEU OF

SYMBOLS SHOWN ON THIS SHEET.

PROJECT CHANNEL

ELEVATION AND LOCATION49.5

PIPELINE ROUTE

HORIZONTAL AND VERTICAL

CONTROL MONUMENT

UPLAND DISPOSAL AREA

MONUMENT FALLS OFF THE PAGE

IN THE DIRECTION OF ARROW

DREDGING AREA

VERTICAL / TIDAL CALIBRATION

CONTROL POINT

CROSS SECTION

EXISTING CONCRETE

OBJECT REFERENCED

VIEWING PLANE

CUTTING PLANE LINE

LEGEND - MATERIALS

REFERENCE SYMBOL KEY

TERMS AND ABBREVIATIONS

G - GENERAL

C - CIVIL

SECTION NAME

S-56 S-56

NOTES, ABBREVIATIONS & SYMBOLOGY

LEGEND - NAVIGATIONLEGEND - GEOTECHNICAL BORINGS

LEGEND - AIDS TO NAVIGATION

DRAWING WHERE

SHOWN

DISCIPLINE DESIGNATOR SURVEY NOTES - CHANNEL

SURVEY NOTES - UPLAND DISPOSAL DAYSON ISLAND

400'0 200'20' 40'0

SECTION NAME

TITLE

DRAWING WHERE SHOWN

GRAPHIC SCALE

CROSS SECTIONC

C-16

HORIZONTALVERTICAL

DRAWING AREA - CROSS SECTION

RIPRAP

SIDE SLOPE

EXISITNG GRADE

GENERAL NOTES

CF CHAIN LINK FENCE

SENSITIVE STRUCTURES

CONCRETE SILL

OFW

FENCE BUOY

LANDFORM

200'0 100'

NORTH INDICATOR

GRAPHIC SCALE

TITLE

DRAWING AREA - PLAN

PLAN VIEW

1. REFER TO SURVEY NO. 22-148.

2. DEPTHS DEPICTED BY THIS SURVEY ARE REFERENCED TO MLLW, TIDAL EPOCH

1983-2001, AS PUBLISHED BY THE NATIONAL OCEANIC AND ATMOSPHERIC

ADMINISTRATION (NOAA).

3. NOAA'S VDATUM MODEL, AND PUBLISHED TIDE STATION DATA WERE USED TO

GENERATE A HYPACK KINEMATIC TIDE DATUM (KTD) MODEL. THIS KTD MODEL,

BEING A COMBINATION OF THOSE TWO SOURCES CANNOT BE CONSIDERED

EQUIVALENT TO THE VDATUM MODEL BECAUSE OF POSSIBLE ADDITIONS OR

EDITS THERETO. DO NOT USE VDATUM IN PLACE OF THE KTD FILE. THE KTD

MODEL USED FOR THIS SURVEY IS:

"CAMDENGA-NASSAU-DUVAL-STJOHNS-FLAGLER_01FEB2011.KTD".

4. TIDAL REDUCTIONS WERE OBTAINED USING REAL-TIME KINEMATIC (RTK) GPS

AND UTILIZING THE KTD FILE REFERENCED ABOVE, AND CALIBRATED TO THE

PUBLISHED MLLW HEIGHTS OF THE BENCHMARKS ASSOCIATED WITH THE TIDE

GAGE SITES SPECIFIED BELOW:

NOAA TIDAL STATION "872-0221", FULTON, ST. JOHNS RIVER

5. ALL ELEVATIONS ARE BELOW THE CHART DATUM UNLESS PRECEDED BY A (+) SIGN.

6. PLANE COORDINATES ARE BASED ON THE TRANSVERSE MERCATOR PROJECTION FOR

THE EAST ZONE OF FLORIDA AND REFERENCED TO THE NORTH AMERICAN DATUM OF 1983.

7. ALL STATIONING REFERS TO THE CENTERLINE OF THE CHANNEL.

8. THIS SURVEY WAS PERFORMED USING REAL-TIME KINEMATIC GPS POSITIONING

WITH THE FOLLOWING REFERENCE BASE LOCATION:

REFERENCE BASE LOCATED AT "USACE BIMT ARP" (OPUS PID: BBGM25)

TIDE STAFF SET AT ST. JOHNS COMMUNITY CENTER BOAT RAMP FROM NOS BM "0211K 1984"

(OPUS PID: BC2397)

9. VERTICAL MEASUREMENTS WERE MADE USING A ROSS MODEL 835C SMARTSOUNDER

WITH A DUAL-FREQUENCY (28/200KHZ) SINGLE-BEAM TRANSDUCER AND A RESON T50P

MULTIBEAM SYSTEM. DEPTHS OUTSIDE THE SECURITY GATE, STA 36+00-57+00 ARE SHOWN

IN HIGH FREQUENCY. DEPTHS INSIDE SECURITY GATE ARE SHOWN IN LOW FREQUENCY (28KHZ).

VESSEL DATE OF SURVEY AREA

SB WELLS 14 JUL 2022 STA 0+00 TO STA 38+00

TB-01 14 JUL 2022 STA 36+00 THRU 56+09.10

26 JUL 2022 LEAD SOUNDINGS AROUND LIGHTERAGES

10. NAVAIDS WERE LOCATED DURING THIS SURVEY.

11. THE INFORMATION DEPICTED ON THESE MAPS REPRESENTS THE RESULTS OF

SURVEYS MADE ON THE DATES INDICATED AND CAN ONLY BE CONSIDERED AS

INDICATING THE GENERAL CONDITIONS EXISTING AT THAT TIME.THIS CHART

IS NOT TO BE USED FOR NAVIGATION.

12. SURVEY ACCURACY STANDARDS, QUALITY CONTROL, AND QUALITY ASSURANCE

REQUIREMENTS WERE FOLLOWED DURING THIS SURVEY IN ACCORDANCE WITH

USACE EM 1110-2-1003, HYDROGRAPHIC SURVEYING, 30 NOV 2013.

1. THE AERIAL BATHYMETRIC LIDAR AND DIGITAL IMAGERY USED IN THIS PROJECT WAS COLLECTED AND PROCESSED BY CESAM-OD-J USING CONVENTIONAL AIRBORNE GPS/GNSS AND REMOTE SENSING SURVEYING METHODS AND PROCEDURES FOR CESAJ-EN-DG SURVEY# 22-173. THE PURPOSE OF THESE SURVEYS WAS TO RECORD THE CURRENT BATHYMETRIC AND TOPOGRAPHIC CONDITIONS OF THE USMC BLOUNT ISLAND AREA, DAYSON DMMA, ALONG THE ST JOHNS RIVER, DUVAL COUNTY, CITY OF JACKSONVILLE, FLORIDA.

2. FIELD SURVEY DATA HEREIN WAS COLLECTED AND PROCESSED BY CESAJ-EN-DG USING GPS/GNSS RTK/RTN SURVEYING METHODS AND PROCEDURES FOR CESAJ-EN-DG SURVEY# 22-173. THE PURPOSE OF THESE SURVEYS WAS TO RECOVER AND VERIFY HORIZONTAL AND VERTICAL POINT LOCATIONS OF EXISTING MONUMENTATION, OBTAIN NEW POINT LOCATION DATA FOR MULTIPLE PHOTO IDENTIFIABLE FEATURES AS WELL AS SEVERAL OPEN AREA GROUND SHOTS, AND RECORD THE CURRENT POSITIONS AND TOPOGRAPHIC CONDITIONS OF THESE POINTS AT THE USMC BLOUNT ISLAND AREA, DAYSON DMMA, ALONG THE ST JOHNS RIVER, DUVAL COUNTY, CITY OF JACKSONVILLE, FLORIDA.

3. THE AERIAL BATHYMETRIC LIDAR AND DIGITAL IMAGERY DATA RECEIVED FROM CESAM-OD-J WAS REVIEWED FOR QUALITY ASSURANCE BY CESAJ-EN-DG SEPARATELY AND IN CONJUNCTION WITH THE GPS/GNSS FIELD SURVEY DATA COLLECTED. UPON ACCEPTANCE AND COMPLETION OF THE QA REVIEW, PLANIMETRIC AND TOPOGRAPHIC DATA HEREIN WAS PROCESSED AND MAPPED FROM THE DIGITAL DATA FILES RECEIVED FROM CESAM-OD-J BY CESAJ-EN-DG USING PHOTOGRAMMETRIC AND REMOTE SENSING SURVEYING METHODS AND PROCEDURES.

4. THE GPS/GNSS SURVEYS FOR THE FIELD COLLECTED DATA WERE ACCOMPLISHED THROUGH REAL TIME KINEMATIC (RTK) GLOBAL POSITIONING SYSTEMS (GPS) METHODS WITH CORRECTIONS RECEIVED FROM THE FLORIDA PERMANENT REFERENCE NETWORK (FPRN) LINKED VIA NTRIP SETTINGS FOR 'RTCM3_NEAR' AND CHECKING INTO COE MONUMENTS 'STJO 351' AND 'STJO 352'. ALL HORIZONTAL COORDINATE AND ELEVATION DATA FOR PERMANENT MONUMENTS, GROUND SPOT CHECK POINTS (CHK01 THROUGH CK07), AND TEMPORARY PHOTO IDENTIFIABLE CONTROL POINTS (PID01 THROUGH PID07), WERE OBTAINED VIA RTK (REAL TIME KINEMATIC) GPS/GNSS, BY OBSERVING AND AVERAGING 210 EPOCHS AT 1

SECOND INTERVALS.

5. THE ORIGINAL AERIAL BATHYMETRIC LIDAR AND DIGITAL IMAGERY DATA WAS ACQUIRED AND POST-PROCESSED BY CESAM-OP-J BETWEEN THE DATES OF AUGUST 19, 2022, AND SEPTEMBER 02, 2022. CESAJ-EN-DG RECEIVED THE BATHYMETRIC LIDAR AND DIGITAL IMAGERY DATA AND SUPPORTIVE PRODUCTS ON SEPTEMBER 07, 2022. THE ORIGINAL GPS/GNSS FIELD SURVEY DATA WAS COLLECTED AND PROCESSED ON

OCTOBER 14, 2022.

6. THIS COMBINED PHOTOGRAMMETRIC/REMOTE SENSING AND FIELD SURVEY WAS PERFORMED AND TESTED AT A 95 PERCENT CONFIDENCE LEVEL TO MEET FEDERAL GEOGRAPHIC DATA COMMITTEE STANDARDS; THAT THIS SURVEY DATA SET WAS TESTED TO MEET ASPRS POSITIONAL ACCURACY STANDARDS FOR DIGITAL GEOSPATIAL DATA (2014) FOR A ±0.15' RMSEx/RMSEy HORIZONTAL ACCURACY CLASS; THAT THIS SURVEY DATA SET WAS TESTED TO MEET ASPRS POSITIONAL ACCURACY STANDARDS FOR DIGITAL GEOSPATIAL DATA (2014) FOR A ±0.15' RMSEz VERTICAL ACCURACY CLASS; AND THAT THE CONTOURS SHOWN HEREIN AS BROKEN LINES MAY NOT MEET THE STATED STANDARDS.

7. THE DIGITAL ELEVATION/TERRAIN MODEL (DEM/DTM) POINTS HEREIN WERE DEVELOPED BY CESAJ-EN-DG USING MODEL KEYPOINT ALGORITHMS TO REDUCE THE LIDAR BARE EARTH POINT CLOUD DATA FOR GROUND AND UNDERWATER CLASSIFICATIONS. THESE METHODS WERE USED FOR THE PURPOSE OF SUPPORTING THE DEVELOPMENT OF AN ADEQUATE POINT DENSITY PER SQUARE METER NEEDED FOR CREATION OF A TIN AND THE GENERATION OF CONTOURS INTERVALS AT BOTH 1 AND 2 FEET. OPENROADS DESIGNER (ORD) 10.10.1.3 CADD FILES WERE DEVELOPED WITH THE GEOGRAPHIC COORDINATES SYSTEM SET TO FL83/2011-83, NSRS11(NAD83/2011) FLORIDA, EAST ZONE, US, SOURCE EPSG:6438, VERTICAL DATUM NAVD88. THE PROCESSED AND CLASSIFIED BARE EARTH LIDAR WAS IMPORTED INTO ORD AND ATTACHED VIA .POD FILE. A SURFACE WAS CREATED USING ORD 'CREATE FROM POINT CLOUD' TOOLS. ALL CONTOURS AND VOLUME CALCULATIONS ARE DERIVED

FROM THIS SURFACE AND IMPORTED POINT CLOUD.

8. CONTOURS HEREIN WERE GENERATED USING OPENROADS DESIGNER (ORD) 10.10.1.3. SPOT ELEVATIONS BETWEEN CONTOUR INTERVALS WERE INTERPOLATED FROM THE LIDAR POINT CLOUD SURFACE USING DATEM SUMMIT EVOLUTION (SE) CELL AND EDITING TOOLS.

9. VOLUMES AND CAPACITY DATA WERE DERIVED FROM TERRAIN ANALYSIS WITHIN OPENROADS DESIGNER (ORD) 10.10.1.3. USING 'ANALYZE

VOLUME: TERRAIN TO PLANE' TOOLS.

10. ALL HORIZONTAL COORDINATES HEREIN ARE BASED ON NORTH AMERICAN DATUM 1983, REALIZATION 2011 (NAD83/2011). ALL VERTICAL COORDINATES HEREIN ARE BASED ON ELEVATIONS DERIVED FROM NORTH AMERICAN VERTICAL DATUM 1988, GEOID MODEL 18

(NAVD88/GEOID18) ADJUSTMENTS.

11. ALL HORIZONTAL AND VERTICAL COORDINATES ARE IN UNITS OF US SURVEY FEET; COORDINATE REFERENCE SYSTEM IS STATE PLANE

COORDINATE SYSTEM 1983, FLORIDA EAST (FIPS 0901, EPSG:6438).

SURVEY CONTROL NOTES:

HORIZONTAL AND VERTICAL CONTROL POINTS

UNITS: USFT HORIZONTAL: NAD83(2011) VERTICAL: NAVD88(GEOID18)

PID NORTHING (Y) EASTING (X) ELEV (Z)

PID01 (FPRN) 2203764.464 500746.526 4.403

PID02 (FPRN) 2205034.673 500336.396 4.733

PID03 (FPRN) 2204115.401 499151.426 11.871

PID04 (FPRN) 2205131.858 497552.977 14.392

PID05 (FPRN) 2207069.049 496412.553 4.824

PID06 (FPRN) 2207464.719 496668.835 5.794

PID07 (FPRN) 2207737.516 496754.303 32.687

STJO 351 2207653.37 496641.59 20.59

STOJ 352 2205859.38 500575.11 12.31

GROUND LOCATION VERTICAL CHECK POINTS

UNITS: USFT HORIZONTAL: NAD83(2011) VERTICAL: NAVD88(GEOID18)

PID NORTHING (Y) EASTING (X) ELEV (Z)

CK01 (FPRN) 2207423.512 497413.838 32.962

CK02 (FPRN) 2206681.132 498712.345 32.851

CK03 (FPRN) 2206658.625 499867.018 33.106

CK04 (FPRN) 2205289.423 499712.179 32.516

CK05 (FPRN) 2205943.742 497312.162 33.529

CK06 (FPRN) 2207520.495 496773.822 33.415

CK07 (FPRN) 2207140.731 496802.872 33.225

EXISTING GRAVEL

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US Army Corps of Engineers

U .S

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RANGE 500

RANGE 222.5

RANGE 795

6.5

.25

32.625

- F

" S

QUA

RANGE 815

CLA

OARD C

REE

DAMES POINT - FULTON CUTOFF

P R O J E C T L I M I T S

HECKSCHER DR. (CR. 105)

BRO

N'S CREEK

CEDAR POINT CREEK

S T. J O H N S R I V E R

O L D S T. J O H N S R I V E R

S T. J O H N S R I V E R

B L O U N T I S L A N D

L I T T L E M A R S H I S L A N D

BLOUNT ISLAND BLVD.

DAVE RAWLS BLVD.

DAYSON ISLAND

DISPOSAL AREA

(D/A-D)

J A X P O R T C O N T A I N E R T E R M I N A L

APPR

XIM

ATE D

E PIPELIN

E R O

TE.

(SEE SH

EET. C

-06)

APPR

XIM

ATE D

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(SEE SH

EET. C

-02)

INSTALLATION DIVISION (IDIV)

LIMITS OF NASSAU RIVER ST JOHNS RIVER MARSHES AQUATIC

PRESERVE OUTSTANDING FLORIDA WATERS - (OFW)

0+00 TO 56+09.1

VOLUME TO

REQUIRED

DEPTH

VOLUME IN

ALLOWABLE

OVERDEPTH

TOTAL

VOLUME

DREDGE AREA

STATIONING

50,000 100,000 150,000

ESTIMATED DREDGING QUANTITIES IN CUBIC YARDS (CY)

REQUIRED

DEPTH

38'

APPROXIMATE SHORELINE APPROXIMATE SHORELINE

APPROXIMATE SHORELINE

CALYPSO ISLAND

ALLOWABLE

OVERDEPTH

LIMITS OF TIMUCUAN ECOLOGICAL AND HISTORIC PRESERVE

OUTSTANDING FLORIDA WATERS - (OFW)

LIMITS OF TIMUCUAN ECOLOGICAL AND HISTORIC PRESERVE

OUTSTANDING FLORIDA WATERS - (OFW)

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PROJECT OVERVIEW

SCALE: 1''=600'

600' 1200'0

GULF OF MEXICO

LAKE

OKEECHOBEE

ALABAMA

GEORGIA

TALLAHASSEE

PENSACOLA

JACKSONVILLE

ORLANDO

FT MYERS

MIAMI

TAMPA

KEY WESTN.T.S.

LOCATION MAP

LOCATION

OF WORK

CANAVERAL

ST LUCIE

ST AUGUSTINE

GAINESVILLE

FLORIDA

ATLANTIC

OCEAN

WEST PALM

BEACH

FT. LUDERDALEN

N N

C R

O N

D B

C O

N O

B Y:

D R

B Y:

E D

SHEET ID

11 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28

US Army Corps of Engineers

U .S

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M Y

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GENERAL SHEET NOTES

1. THE OFW IS SHOWN FOR INFORMATION PURPOSES ONLY. EXACT BOUNDARIES OF

THE OFW SHOULD BE VERIFIED. TURBIDITY REQUIREMENTS AT THE DMMA

DISCHARGE PIPE ARE SPECIFIED IN SECTION 01 57 25.

BERTH 2

BERTH 1 BERTH 3 BERTH 5

BERTH 4

APPROXIMATE SHORELINE

X=492,000

X=493,000

X=494,000

X=496,000

X=497,000

Y=2,205,000

Y=2,206,000

Y=2,207,000

Y=2,208,000

NOTE: SURVEY CONTROL FOR DISPOSAL AREA DEPICTED ON SHEET C-06

-1 +8

-1 +0

872 0221 K TIDAL

X=495,000

P.I.

POINT

(X) EASTING (Y) NORTHING

2,206,039.55

2,202,946.55

2,206,285.64

2,205,808.05

2,205,788.09

2,205,310.50

2,205,581.12

2,205,234.91

2,203,119.65

2,202,773.45

490,577.08

495,256.33

490,739.75

490,424.06

491,492.47

491,176.78

491,646.92

491,418.08

495,370.75

495,141.91

PRIMARY PROJECT CONTROL POINTS

CHANNEL CONTROL DATA NOTES:

HORIZONTAL REFERENCE SYSTEM:

THE HORIZONTAL REFERENCE FRAME FOR THIS PROJECT IS THE NORTH AMERICAN

DATUM OF 1983 (NAD83), BASED ON THE CURRENT VERSION OF THE NOAA NATIONAL

SPATIAL REFERENCE SYSTEM (NSRS). GRID COORDINATES ARE SHOWN IN THE

FLORIDA STATE PLANE COORDINATE SYSTEM (SPCS)EAST ZONE (0901).

MEASUREMENT UNITS ARE THE U.S. SURVEY FOOT. CHANNEL STATIONING AND

OFFSET COORDINATES ARE RELATIVE TO THE INDICATED CHANNEL BASELINE FOR

EACH CHANNEL REACH. UNLESS OTHERWISE INDICATED, CHANNEL WIDTHS AND

LIMITS CONFORM TO THE AUTHORIZED PROJECT DIMENSIONS, AS SHOWN IN THE

MASTER CHANNEL FRAMEWORK DESIGN FILE FOR THIS PROJECT.

VERTICAL REFERENCE SYSTEM:

THE TIDAL REFERENCE GRADE FOR THIS PROJECT IS MEAN LOWER LOW WATER

(MLLW), OF THE 1983-2001 NATIONAL TIDAL DATUM EPOCH, AS PUBLISHED BY THE

NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION (NOAA). ORTHOMETRIC

HEIGHTS ARE REFERENCED TO THE NORTH AMERICAN VERTICAL DATUM OF 1988

(NAVD88).

TIDAL MODEL:

THE NAVD88-MLLW RELATIONSHIP FOR THE EXTENTS OF THE PROJECT IS DERIVED

FROM THE NOAA VDATUM HYDRODYNAMIC TIDAL MODEL VERSION 3.8, RELEASE

DATE OF 06 MARCH 2018. THIS MODEL WAS USED TO CONSTRUCT A KINEMATIC

TIDAL DATUM GRID FILE (KTD) ALLOWING FOR REAL TIME VERTICAL DATUM

CORRECTIONS. DUE TO ONGOING REFINEMENTS IN THE VDATUM MODEL, THE KTD

FILE MAY CONTAIN EDITS OR ADDITIONS DIFFERING FROM THE VDATUM MODEL IF IT

WERE to be USED AS A STAND ALONE PRODUCT FOR THE navd88-mllw CALCULATION.

THESE EDITS ARE A RESULT OF EITHER OMISSIONS IN THE ORIGINAL VDATUM

COVERAGE, OR DISAGREEMENTS WITH THE PUBLISHED TIDE GAUGE DATUM VALUES

AT THOSE PUBLISHED SITES. AS A RESULT OF THIS, THE KTD FILE AND THE VDATUM

MODEL FILE ARE NOT TO BE CONSIDERED EQUIVALENT. ANY THIRD PARTY ATTEMPT

TO DUPLICATE THIS SURVEY SHALL OBTAIN THE KINEMATIC TIDE DATUM MODEL (KTD

FILE), REFERENCED IN THE NOTES ACCOMPANYING EACH SURVEY FROM THE

JACKSONVILLE DISTRICT. REFER TO SURVEY NOTES FOR “KTD” FILE NAME.

PRIMARY PROJECT CONTROL POINTS (PPCP) AND KTD TIDAL CALIBRATION SITES:

PPCPs ARE LISTED IN THE ACCOMPANYING SURVEY NOTES AND TABULATED ON THE

CONSTRUCTION PLANS. THESE SURVEY NOTES DETAIL WHICH HORIZONTAL AND

VERTICAL SURVEY CONTROL MARKS WERE USED TO SURVEY A PARTICULAR

REACH/CUT/ETC. OF THIS PROJECT. ANY ATTEMPT TO REPLICATE THE SURVEY

FURNISHED HEREIN MUST USE THE SURVEY CONTROL AS TABULATED,

ACCOMPANYING THE DESIGN SURVEY(S).

CONSTRUCTION SURVEY POSITIONING CRITERIA:

HORIZONTAL POSITIONING AND WATER SURFACE ELEVATION MEASUREMENTS MUST

BE PERFORMED UTILIZING REAL-TIME KINEMATIC GLOBAL POSITIONING SYSTEM

(RTK-GPS) OR REAL-TIME NETWORK (RTN) GPS OBSERVATIONS, AND BE

REFERENCED TO (AND/OR SITE-CALIBRATED TO) THE PPCPs WITHIN THE SURVEY

REPORT, SURVEY NOTES AND AS TABULATED WITHIN THESE PLANS.

REFER TO THE ACCOMPANYING “SURVEY NOTES”AND “SURVEY COVER SHEET”FOR

THE SURVEY CONTROL MARKS, TIDAL CALIBRATION BENCH MARKS, “KTD”FILE NAME

AND GEOID MODEL ASSOCIATED WITH THE DATA SHOWN BY THE HYDROGRAPHIC

SURVEY FURNISHED WITHIN THESE PLANS.

FLORIDA EAST ZONE PLANE COORDINATES

RGE. 500

RGE. 795

RGE. 222.5

RGE. 500

RGE. 292.5

MARINE CORPS SUPPORT FACILITYBLOUNT ISLAND CHANNEL

RGE. 707.57

B A C K R I V E R

BBGM25

BBBX61

BBCB02

BC2397

USACE BIMT ARP

BIMT-101

STJO-302

872 0221 K TIDAL

2,204,802.02 2,204,048.81 2,205,559.14

2,200,430.SC

493,918.46 495,095.06 491,694.95

495,900.SC

21.79 12.19 8.07

28.22

DESIGNATION PID NORTHING EASTING NAVD88 MLLW APPLICABLE TO SURVEY OF

SURVEY CONTROL

N/A N/A N/A

30.58

NOTES:

1. "ARP" AS USED ABOVE INDICATES THAT THIS MARK IS AN OPERATIONAL GPS RECEIVER/ANTENNA/RTK INSTALLATION. CONTACT "OPERATIONS DIVISION / SURVEYING AND MAPPING BRANCH" FOR SPECIFIC DETAILS AND ACCESS.

2. "SC" INDICATES A SCALED HORIZONTAL POSITION. THIS POINT IS ONLY TO BE USED AS A VERTICAL

CALIBRATION/CHECK POINT, NOT FOR HORIZONTAL CONTROL.

3. SURVEY BENCHMARKS HAVING AN ELEVATION PUBLISHED IN THE VERTICAL DATUM OF "MLLW" ARE

"KTD" MODEL/TIDAL CALIBRATION POINTS.

CHANNEL

STJO-302

USACE BIMT ARP

BIMT-101

Y=2,209,000

-m ct

-g i0

.d w g

C H

N D

S U

Y C

O N

L D

G-04

CHANNEL AND SURVEY CONTROL DATA

SCALE: 1''=200'

200' 400'0

N N

C R

O N

D B

C O

N O

B Y:

D R

B Y:

E D

SHEET ID

11 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28

US Army Corps of Engineers

U .S

. A R

M Y

C O

O F

R S

E, D

N M

O B

C O

S U

R T

- B

N T

N D

C E

D R

-F

O O

C T

D U

C O

U N

, F

2E P2

O G

D . S

W . R

9.810.1 12.0

12.0 12.1

10.4 9.79.88.815.4

10.0

2.25.35.46.36.16.26.02.41.51.61.4

7.1 8.0 7.0 6.4 5.5 2.8 1.7 1.5 1.9 5.1 4.8 5.1 4.7 3.6 3.4 3.8 3.3 1.9

11.1 11.0

11.4 11.3

10.0 6.8 5.9 6.8 6.2 9.4 9.8 8.9 9.0 8.0 7.9 7.0 6.3 5.9

6.15.8 7.1 7.4 9.8

11.8 13.0 15.1 16.7 16.9 16.5 17.5 19.6 20.5 19.2 17.6 18.1 16.9 17.1 17.6 17.8 15.6 16.7 15.6 15.3 17.0 18.0 15.6 15.0 15.1 14.7 14.8 15.3 14.9 15.1 14.9 14.9 15.9 17.0 18.4 18.6 17.1 16.9

13.8 30.3

32.6 35.3 36.9 37.7 38.9 38.8 38.1 37.9 37.3 36.6 36.5 36.4 36.5 36.8 37.0 36.7 36.9 36.2 35.9 36.1 36.4 36.0 35.9 35.5 35.3 34.9 34.7 34.0 33.9 34.6 33.1 32.5 31.1 29.4 26.8 24.3 20.1 15.8 10.5

7.8 10.3 11.1 13.0 16.9 24.1 28.1 30.6 32.0 33.4 34.5 35.1 34.8 35.1 35.7 36.1 36.0 36.3 36.8 36.9 37.7 37.6 38.1 38.6 39.2 40.7 40.5 39.0 38.4 37.9 38.4 38.1 37.7 37.9 39.0 39.0 39.1 38.4 37.6 37.3 36.1 34.9

30.6 33.0

35.7 36.7 38.0 38.7 38.8 39.1 39.6 39.5 39.0 39.3 39.7 38.6 38.5 38.9 39.9 39.9 39.6 39.5 39.1 38.7 38.4 37.7 37.5 37.5 37.3 37.1 36.8 36.6 36.7 36.4 35.9 35.1 34.4 33.2 31.4 30.0 26.7 21.0 16.4 13.7 12.2

9.8 11.4 13.2 15.9 19.1 24.9 31.0 33.7 35.2 36.3 37.1 37.4 37.5 37.5 37.7 37.8 37.8 38.1 38.8 38.5 38.7 38.9 39.0 39.4 39.0 38.9 39.1 40.1 39.2 39.6 39.6 39.7 39.5 39.2 38.9 38.4 38.3 37.9 37.7 36.7

33.7 35.5

36.9 38.5 38.2 38.0 38.4 38.6 38.7 39.0 39.5 39.9 39.3 39.5 39.0 39.2 39.4 40.0 39.7 39.6 39.9 39.5 39.0 38.6 38.6 38.8 38.1 38.3 37.9 38.1 37.6 37.6 37.3 36.3 35.0

31.6 32.0 34.3

36.5 37.1 37.3 37.4 37.9 37.9 37.8 38.3 38.5 38.5 39.0 38.9 38.8 39.0 39.3 39.3 39.3 39.0 38.8 38.7 39.7 39.9 39.9 39.1 38.4 38.5 38.4 38.1 37.7 37.3

35.1 34.7 36.5

38.0 38.6 38.8 38.5 38.8 39.0 39.0 39.2 39.6 39.5 39.6 39.4 39.2 38.8 38.6 39.3 39.5 39.5 39.2 38.9 39.0 38.8 38.5 38.1 37.5 37.6 37.0 36.6 35.9 33.0

27.5 24.9

31.5 34.4 36.2 37.1 37.5 37.9 38.4 37.8 38.0 38.5 39.3 39.5 39.9 40.2 40.8 41.2 41.4 41.8 42.4 43.4 43.3 43.4 43.8 43.5 42.8 42.0 41.5 41.0 40.3 39.9 39.8 39.5 39.4 39.5

38.0 38.1

39.6 39.3 40.5 40.9 40.5 40.6 40.3 40.8 41.4 42.8 43.2 42.4 42.4 42.6 42.0 42.0 40.8 39.4 38.7 38.7 38.9 39.5 39.1 38.8 39.0 39.2 39.0 38.8 38.1 37.6 37.4 37.3 35.2 31.6 27.0 23.4 17.6 16.2 13.0

12.1 7.6

9.6 13.0 18.1 20.3 24.7 28.6 34.6 36.2 37.7 38.0 37.5 38.0 38.7 39.0 38.9 39.4 39.3 39.0 39.6 39.3 39.7 40.5 40.7 41.7 42.1 41.7 41.4 40.7 41.2 41.3 40.3 39.7 39.6 38.6 38.9 39.4 40.0 39.0 39.3 38.3 37.3 30.2 25.9 23.1 20.3 16.8 13.2

9.0

17.3 19.8 23.4 27.7 34.2 38.3 38.8 38.9 39.0 39.1 39.6 39.6 40.4 39.5 40.6 39.4 39.9 40.1 40.4 39.8 40.0 39.4 39.2 39.1 39.3 38.9 39.5 39.3 39.3 39.8 39.7 39.8 39.2 39.8 39.0 37.7 35.1 31.3 27.4 24.6 21.1 18.4 15.4 10.8 7.3

15.6 16.4 19.9 25.1 31.0 39.1 40.9 41.2 40.5 39.7 40.0 39.8 39.4 39.1 39.1 39.2 39.6 39.3 39.6 40.1 39.7 39.5 39.4 39.4 39.4 39.7 39.6 39.6 40.6 40.4 40.2 37.6 30.8 24.1 17.9 14.7

39.3 40.3 39.9 40.2 39.9 39.3 39.6 39.5 40.1 40.1 39.5 39.3 39.6 38.9 38.9 38.9 38.9 39.5 39.6 40.1 39.3 39.3 39.0 38.5 34.0 28.0 21.1 17.2 13.7 9.6

21.3 24.1 27.2 35.5 38.4 39.0 39.0

39.2 38.9 39.3 39.1 39.2 39.5 39.0 39.2 38.8 39.0 39.6 39.7 39.8 39.3 38.9 39.3 39.6 39.4 39.2 39.5 39.0 38.3 35.3 30.7 25.8 19.2

39.4 39.1 39.6 39.4 39.0 39.1 38.8 39.3 39.5 38.8 39.0 38.8 39.2 39.0 38.6 38.6 38.3 38.5 38.4 39.0 39.4 39.0 39.3 38.2 37.0 28.8 24.9

22.0 17.9 21.4

24.4 29.8 33.8 39.5 40.1 40.2 41.2 40.4 39.7 39.9 39.7 39.1 38.5 39.0 38.9 38.9 39.4 38.9 39.4 39.1 38.8 39.0 39.4 39.5 39.6 40.5 39.6 39.8 40.1 40.2

29.9 33.3 37.7 39.5 39.9 39.7 39.5 39.2 39.3 38.7 38.6 38.8 39.0 39.3 39.1 38.7 39.1 38.4 38.7 39.0 40.5 40.2 39.6 39.7 39.3 39.9 39.2 34.0 28.6

20.8 25.9 28.9 33.0 39.4 40.4 41.3

40.2 39.1 39.8 39.5 38.9 38.7 38.7 38.6 38.9 39.0 39.5 39.2 39.2 38.9 38.9 38.8 39.3 39.2 39.0 39.0 39.4 39.2 38.8 36.1 31.3 25.4 21.4 15.8 12.6

10.3 10.0

12.1 15.1 22.4 28.5 33.3 38.9 39.3 39.9 39.8 39.5 38.9 39.3 39.4 38.9 38.9 39.2 39.3 39.5 39.2 39.2 39.1 38.9 39.0 38.9 39.1 39.0 38.6 39.8 39.6 39.9 39.6 36.5 31.2 26.2 20.1 16.6 14.4 11.9 9.6 8.0

7.37.8 8.6 9.7

11.7 15.7 18.0 23.6 29.3 34.1

39.6 39.1 39.4 38.9 38.9 38.9 39.1 39.2 38.8 38.9 39.4 39.0 39.2 39.1 39.2 39.2 38.9 39.0 39.0 39.2 39.5 39.5 39.8 39.1 36.5 30.9 26.0 21.3 18.0 13.4 10.7

8.2 11.2 13.0 14.7 19.4 24.8 30.0 35.8 39.1 39.6 41.0 39.9 38.8 38.9 39.1 39.3 38.9 38.9 39.3 38.9 38.7 39.5 38.9 38.9 39.1 39.0 39.5 39.1 39.4 39.0 39.0 39.3 40.8 40.1 38.2 32.9 26.3 20.3 16.6 14.3 12.3 10.8 8.9 7.7 6.5

5.76.5 7.7 9.8

13.3 13.9 15.8 18.9 24.8 32.5 37.8 38.6 38.7 39.3 38.8 38.5 38.7 38.7 38.6 38.5 38.8 38.9 39.0 39.3 39.4 39.0 38.8 39.5 39.2 39.2 39.4 39.6 39.5 39.3 39.2 39.8 39.8

39.8 39.4 39.1 39.1 39.4 39.3 39.2 39.1 39.3 39.2 39.5 39.5 39.5 39.0 39.0 38.7 38.8 39.0 39.2 39.1 38.5 38.6 39.4 39.1 38.5 35.4 31.1 23.9 18.7 16.5 14.5 13.0 10.1 7.8

7.2 5.9

7.3 8.3 9.7

11.9 13.0 16.4 17.4 22.5 28.5 35.1 38.5 39.1 39.4 39.8

39.2 39.1 39.5 39.3 38.7 38.4 38.9 38.8 39.0 39.2 39.3 39.2 39.1 39.5 39.2 39.3 39.4 39.5 39.9 39.8 40.8 40.8 40.3 37.9 26.3 20.1 15.0 12.9

9.6 8.2 6.4

5.47.7 10.2 11.7 14.6 16.8 22.2 25.3 30.3 37.9 39.2 40.0 40.3 39.5 39.3 39.4 39.5 39.3 39.0 39.5 39.1 39.2 39.8 39.2 39.0 38.7 38.9 39.2 39.5 39.3 38.9 39.3 39.7 40.4 39.6 38.5 33.2 29.0 21.4 18.1 15.5 13.3 11.3 9.2

6.37.0 8.1 9.4

12.4 14.7 17.1 19.4 25.7 32.3 36.0 40.3 40.2 39.1 39.3 38.9 39.6 39.4 39.3 39.0 39.4 39.2 40.0 39.1 39.2 39.4 39.2 38.9 39.1 39.6 39.3 39.1 38.9 39.1 38.9 36.8 26.7 21.9 15.9 13.3

9.3 6.6 4.04.0

6.0 8.2

10.6 13.3 15.4 20.5 26.1 32.8

36.8 38.3 40.3 40.5 40.5 39.8 39.5 39.3 39.0 39.0 38.7 39.0 39.5 39.9 39.2 39.2 39.1 39.4 39.0 39.5 39.3 38.9 39.1 39.0 40.0 40.6 39.4 36.9 30.6 23.2 19.0 16.7 13.9 11.6 9.6 8.1 7.0

C-03

C-04

C B-

C T2

C B-

C T2

C B-

C T2

C B-

C T2

C B-

C T2

C B-

C T2

C B-

C T2

C B-

C T2

C B-

C T2

C B-

-2

C B-

-2

G S-

-4

G S-

-5

G S-

-2

G S-

-3

C B-

-0

C B-

-0

C B-

-0

7 VB

-B

-2

C B-

-0

G S-

-1 C

B-

M C

-0

C B-

-2

-B

-1

C B-

-2

C B-

-0

C B-

-0

C B-

-2

C B-

-0

C B-

-2

C B-

-0

C B-

-2

C B-

-2

C B-

C T1

C B-

C T1

C B-

C T1

C B-

C T1

X= 491,000

X= 491,500

X= 492,000

X= 492,500

X= 493,000

Y= 2,206,500

Y= 2,206,000

Y= 2,205,500

Y= 2,207,000

RGE. 707.5

RGE. 500

RGE. 292.5

RGE. 795.0

RGE 500

RGE. 222.5

PIERHEAD WAY

D R

. 2 5+

. 2 0+

N L

S O

C T

. 0 +0

X= 493,500

X= 494,000

M A

T C

N E

S H

E E

T C

-0

S T

A . 2

38-FOOT REQUIRED DEPTH PLUS

2 FOOT ALLOWABLE OVERDEPTH

' O

E N

. 0 +0

M A R I N E C O R P S S U P P O R T F A C I L I T Y B L O U N T I S L A N D C H A N N E L

B A C K R I V E R

. 5 +0

. 1 5+

. 1 0+

. 1 1+

. 9 +0

PIERHEAD WAY

RGE 718.25

. 4 +0

' O

E N

' O

T (S

' O

E N

' O

E N

' O

N O

' O

E N

' O

E N

' O

E N

B E R T H 2

B E R T H 1

B E R T H 4

B E R T H 3

E O

N G

E O

N G

G P

G M

O O

G D

G M

O O

G D

G M

O O

G D

EXISTING SUBMERGED REINFORCED CONCRETE SILL

32.6'W x 426.5'L

TOP ELEV. 47' MLLW

G R

G W

G R

G W

G M

O O

G D

O R

SENSITIVE STRUCTURES

SEE NOTE 2

SENSITIVE STRUCTURES

SEE NOTE 2

SENSITIVE STRUCTURES

SEE NOTE 2

SENSITIVE STRUCTURES

SEE NOTE 2

SENSITIVE

STRUCTURES

SEE NOTE 2

B E R T H 5

. 7 +2

. 1 5+

. 2 1+

. 4 +0

. 7 +2

. 1 1+

. 1 5+

. 2 1+

. 1 2+

A . 1

RGE 390

BERTH 1 DREDGING AREA LIMITS

SEE NOTE 4

. 1 1+

' O

E N

' O

E N

' O

E N

' O

E N

' O

E N

SENSITIVE

STRUCTURES

SEE NOTE 2

' O

E N

' O

T (S

-m ct

-c n1 pl n.

dw g D

G P

. 2

C-01

DREDGING PLAN STA. 0+00 TO STA. 27+00

SCALE: 1"=100'

100' 200'0

SHEET GENERAL NOTES

N N

C R

O N

D B

C O

N O

B Y:

D R

B Y:

E D

SHEET ID

11 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28

US Army Corps of Engineers

U .S

. A R

M Y

C O

O F

R S

E, D

N M

O B

C O

S U

R T

- B

N T

N D

C E

D R

-F

O O

C T

D U

C O

U N

, F

2E P2

O G

D . S

W . R

1. SEE SPECIFICATION SECTION 35 20 23 FOR INSTRUCTIONS REGARDING

DREDGING ADJACENT TO STRUCTURES.

2. SEE SPECIFICATION SECTION 35 20 23 FOR OVER-DREDGING

RESTRICTIONS.

3. VERIFY THE LOCATION OF ALL STRUCTURES PRIOR TO DREDGING AND

ADJUST THE DREDGING LIMITS AS NECESSARY TO ENSURE THE OFFSET

DISTANCE.

4. SEE SPECIFICATION SECTION 35 20 23 FOR INSTRUCTIONS REGARDING

DREDGING OF BERTH 1 AREA.

.4 9.9 13

.0 9.3 14

.9 8.4 11 .6

.8 8.2 7.317 .9

.3 6.0 25 .9 7.7 17 .9

.0 9.7 8.4 6.7 25 .6

.2 8.9 8.913

.1 9.2 7.317 .5

.6 9.318

.7 8.4 10 .7

.0 9.5 18 .4

.0 9.118

.7 8.213 .7

.5 5.1 17 .1

.0 5.8 17 .8

.0 8.9 37 .5

.2 5.6 7.4 16 .7

.6 5.9 17 .6

.5 8.7 18 .4

.0 6.4 17 .5

.1 7.7 16 .1

.2 7.5 13

.1 5.6 16 .0

.7 5.0 8.7 16 .9

.9 6.5 19 .3

.6 7.9 17 .0

.9 4.4 11 .2

.9 6.2 16 .6

.2 8.7 9.4 16

.6 7.3 8.4 18 .1

.2 5.7 12 .0

.5 9.6 16 .5

.7 6.5 9.2 16 .5

.1 9.7 15 .8

.9 8.3 17 .6

.9 6.2 7.6 16

.1 9.7 34 .8 7.1 16 .0

.3 8.8 12 .1

.0 7.0 8.3 16 .5

.3 7.8 8.9 16 .7

.8 9.2 11 .0

.2 8.4 14 .0

.6 9.8 13 .6

.0 9.7 12

.5 8.9 49 .2

.9 5.9 14 .9

.8 4.0 17 .9

.8 3.8 16 .9

.1 5.3 15 .9

.2 6.5 16 .9

.0 7.4 19

.6 8.0 21 .6

.1 8.1 14 .0

.8 8.0 23 .3

.6 8.8 25 .0

6.0 6.46.97.3

7.8 8.4

14.8 22.7 30.0 34.4 37.5 37.8 38.2 38.6 39.0 39.0 39.2 39.3 39.4 39.3 39.2 39.1 39.1 39.0 39.2 39.1 39.3 39.3 39.5 39.8 40.0 40.0 40.3 40.3 40.2 40.0 40.3 40.4 39.3 37.7 35.5 28.4 20.8 15.7 13.3 12.1

11.3 9.311.5

12.0 12.6 14.1 19.8 25.3 31.0 35.6 37.7 38.8 39.4 39.7 39.8 39.8 39.6 39.5 39.5 39.3 39.1 39.0 39.0 39.2 39.1 39.4 39.2 39.0 39.1 38.9 38.8 38.8 38.7 38.4 38.3 38.2 37.8 37.3 36.7 36.0

31.8 24.3 16.2

8.1 6.7 6.2

9.810.2 10.9 11.9 13.8 16.7 20.2 27.3 33.5 38.0 38.4 38.5 38.4 38.3 38.4 38.5 38.5 38.6 38.7 38.8 38.9 38.9 39.0 39.0 39.1 39.2 39.3 39.6 39.7 39.5 39.5 39.7 39.9 39.5 39.0 37.8 33.1 26.4 21.4 18.8 15.8 14.0 12.8

11.4 8.510.1

12.9 15.3 15.9 16.5 18.1 22.3 29.9 36.5 39.1 39.3 39.4 39.4 39.1 39.1 39.3 39.1 38.8 38.8 38.7 38.7 39.0 38.9 39.0 38.8 38.8 38.8 38.7 38.7 38.7 38.6 38.4 38.5 38.6 38.6 38.0 33.1 25.5 20.5 17.0 15.4 14.5 13.2 11.0 10.0

8.99.7 10.2 11.6 11.8 13.3 14.4 16.1 19.6 24.1 30.5 37.6 38.0 38.5 38.4 38.3 38.5 38.8 38.9 38.8 38.8 38.8 39.0 39.2 39.0 39.2 38.9 39.0 39.1 39.1 39.0 39.1 39.4 39.0 39.2 39.3 39.3 39.1 37.8 32.9 22.6 16.2 15.0 14.6 14.1 12.3

8.910.4 11.3 13.4 14.7 15.5 16.6 19.2 30.9 36.6 39.2 39.5 39.9 40.0 39.5 39.4 39.3 39.5 39.1 38.9 39.0 38.9 39.0 39.1 39.1 39.0 38.9 38.8 38.9 38.9 38.8 38.5 38.4 38.3 38.1 38.1 37.8 36.7 30.3 23.7 19.0 15.9 14.2 12.4 10.8 10.5

8.6 9.0

10.3 11.2 11.9 14.0 16.5 21.5 27.3 35.8 37.8 38.2 38.5 38.5 38.7 38.8 39.0 39.0 38.8 39.0 39.0 38.9 39.1 39.3 38.9 39.0 39.2 39.3 39.1 39.7 39.5 39.3 39.4 39.9 39.8 39.5 38.2 34.3 27.8 19.9 15.7 15.3 14.4 12.5 10.9

7.18.09.1 10.4 13.0 14.3 15.3 16.3 21.9 29.7 34.4 38.7 39.9 39.9 39.8 39.6 39.5 39.6 39.7 39.2 39.3 39.5 39.2 39.1 39.3 39.2 39.0 39.0 38.9 38.6 38.5 38.5 38.8 38.6 38.7 38.8 38.8 38.7 38.4 37.3 28.5 22.1 17.1 14.5 12.9 11.7 11.1 10.7 9.1 6.6

4.45.0 5.7 6.5 7.6 9.1

11.3 13.1 16.3 19.6 25.0 32.9 37.0 38.1 38.5 38.3 38.5 38.3 38.5 38.6 38.7 38.7 38.5 38.6 38.6 38.9 39.3 39.3 39.4 39.5 39.7 39.4 39.5 39.4 39.6 40.1 40.5 40.7 40.6

40.4 39.0 9.1

9.8 .1

9.5 9.4 9.7 .7 .7 .7 .0 .9 .6 .5 .3 .0 .3 .0

C B-

C T2

C B-

C T2

C B-

C T2

C B-

C T2

C B-

C T2

C B-

C T2

C B-

C T2

G S-

-1

G S-

-8

G S-

-9

G S-

-7

G S-

-6

C B-

-1

C B-

-1 4C B-

-1

C B-

-1

C B-

-1

-B

-4

-B

-3

C B-

-1

C B-

C T1

C B-

C T1

C B-

C T1

C B-

C T1

C B-

C T1

C B-

C T1

C B-

C T1

C-05

. 4 2+

"PSB BUOY"

"GDB-1"

"RLB-36"

"PSB BUOY"

PLANE COORDINATESNAME

X Y

MAP

LABEL

AIDS TO NAVIGATION

LT. BUOY-36 (07/22) 495,598 2,203,243R"36"

GDB-1 (07/22) 493,885 2,203,470G"1"

SEC GATE BUOY (07/22) 493,548 2,203,799

SEC GATE BUOY (07/22) 493,634 2,204,295PSB BUOY

PSB BUOY

RGE. 707.5

RGE. 500

RGE. 292.5

RGE. 500

RGE. 292.5

. 3 0+

. 5 0+

. 4 5+

. 4 0+

. 3 5+

. 5 5+

RGE. 707.5

Y= 2,203,500

O F

A . 5

D A M

O I

N T

F U L

T O

C U

T O

F F

S T

O H N

R I

V E R

O F

T (S

. 5

Y= 2,204,500

Y= 2,205,000

Y= 2,204,000

X=493,500

Y= 2,205,500

M A

T C

N E

S H

E E

T C

-0

S T

A . 2

38-FOOT REQUIRED DEPTH PLUS

2 FOOT ALLOWABLE OVERDEPTH

X=494,500

X=495,000

X=495,500

X=496,000

APPROXIMATE LOCATION OF OVERLAND SEGMENT OF DREDGE

PIPELINE. EXACT ROUTE TO BE FIELD LOCATED AND

APPROVED BY CONTRACTING OFFICER.

' O

E N

G M

O O

G D

APPROXIMATE SHORELINE

M A R I N E C O R P S S U P P O R T F A C I L I T Y B L O U N T I S L A N D C H A N N E L

B A C K R I V E R

C U T

SECURITY BARRIER

JACKSONVILLE HARBOR

FEDERAL CHANNEL LIMITS

APPROXIMATE SHORELINE

JACKSONVILLE HARBOR

FEDERAL CHANNEL LIMITS

. 4 2+

O L D S T. J O H N S R I V E R

C U T - A

N O

' O

E N

-m ct

-c n1 pl n.

dw g D

G P

T O

. 5 6+

C-02

DREDGING PLAN STA. 27+00 TO 56+09.1

SCALE: 1''=100'

100' 200'0

SHEET GENERAL NOTES

N N

C R

O N

D B

C O

N O

B Y:

D R

B Y:

E D

SHEET ID

11 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28

US Army Corps of Engineers

U .S

. A R

M Y

C O

O F

R S

E, D

N M

O B

C O

S U

R T

- B

N T

N D

C E

D R

-F

O O

C T

D U

C O

U N

, F

2E P2

O G

D . S

W . R

1. SEE SPECIFICATION SECTION 35 20 23 FOR INSTRUCTIONS REGARDING

DREDGING ADJACENT TO STRUCTURES.

2. SEE SPECIFICATION SECTION 35 20 23 FOR OVER-DREDGING

RESTRICTIONS.

3. VERIFY THE LOCATION OF ALL STRUCTURES PRIOR TO DREDGING AND

ADJUST THE DREDGING LIMITS AS NECESSARY TO ENSURE THE OFFSET

DISTANCE.

600 700 800 900 1000 1100400300200100-100

4+00

+10

+20

+10

+20

- M

50' 100'010' 20'0

- M

C-01

CROSS SECTION AT STA. 4+00

50' 100'010' 20'0

- M

600 700 800 900 1000 1100400300200100-100

- M

+10

+20

+10

+20

C-01

50' 100'010' 20'0

- M

600 700 800 900 1000 1100400300200100-100

11+50

- M

+10

+20

+10

+20

CROSS SECTION AT STA. 11+50C

C-01

VERTICAL HORIZONTAL

CROSS SECTION AT STA. 7+20

7+20

R G

BERTH 2

R G

PROJECT CHANNEL

38-FOOT REQUIRED DEPTH

2-FOOT ALLOWABLE OVERDEPTH

EXISTING BOTTOM

R G

AREA TO BE DREDGED

25' DREDGING OFFSET

BERTH 1

SEE NOTE 1

LOOKING NORTHWESTRANGE DISTANCE IN FEET

N O

R G

SQUARE CONCRETE PILES

(TYPICAL)

ACTUAL PILE

DEPTH VARIES

EXISTING RIP-RAP

(NOT SURVEYED)

SQUARE CONCRETE PILES

(TYPICAL)

25' DREDGING OFFSET

SEE NOTE 1

R G

PROJECT CHANNEL

R G

EXISTING BOTTOM

BERTH 1

LOOKING NORTHWESTRANGE DISTANCE IN FEET

N O

SQUARE CONCRETE PILES

(TYPICAL)

EXISTING RIP-RAP

(NOT SURVEYED)

SQUARE CONCRETE PILES

(TYPICAL)

R G

EL. 52.0'

EXISTING SUBMERGED REINFORCED CONCRETE SILL

BERTH 2

MOORING DOLPHIN

C H

N E

R G

PROJECT CHANNEL

BERTH 3

LOOKING NORTHWESTRANGE DISTANCE IN FEET

N O

SQUARE CONCRETE PILES

(TYPICAL)

SQUARE CONCRETE PILES

(TYPICAL)

C H

N E

BERTH 4

R G

38-FOOT REQUIRED DEPTH

2-FOOT ALLOWABLE OVERDEPTH

EXISTING BOTTOM

SEE NOTE 1

15' DREDGING OFFSET 15' DREDGING OFFSET

SEE NOTE 1

AREA TO BE DREDGED

R G

EXISTING RIP-RAP

(NOT SURVEYED)

EXISTING RIP-RAP

(NOT SURVEYED)

RETAINING WALLRETAINING WALL

ACTUAL PILE

DEPTH VARIES

ACTUAL PILE

DEPTH VARIES

ACTUAL PILE

DEPTH VARIES

ACTUAL PILE

DEPTH VARIES

ACTUAL PILE

DEPTH VARIES

SENSITIVE

STRUCTURES

SENSITIVE

STRUCTURES

SENSITIVE

STRUCTURES

SENSITIVE

STRUCTURES

SENSITIVE

STRUCTURES

SENSITIVE

STRUCTURES

EL. 47.0'

2-FOOT ALLOWABLE OVERDEPTH

38-FOOT REQUIRED DEPTH

AREA TO BE DREDGED

R G

25' DREDGING OFFSET

SEE NOTE 1 SEE NOTE 1

25' DREDGING OFFSET

-m ct

-c n1 se ct io n.

dw g D

G C

R O

O N

S A, B

C-03

SHEET GENERAL NOTES

N N

C R

O N

D B

C O

N O

B Y:

D R

B Y:

E D

SHEET ID

11 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28

US Army Corps of Engineers

U .S

. A R

M Y

C O

O F

R S

E, D

N M

O B

C O

S U

R T

- B

N T

N D

C E

D R

-F

O O

C T

D U

C O

U N

, F

2E P2

O G

D . S

W . R

1. SEE SPECIFICATION SECTION 35 20 23 FOR INSTRUCTIONS REGARDING

DREDGING ADJACENT TO STRUCTURES.

2. CHANNEL SIDE SLOPES SHOWN ON CROSS SECTIONS ARE FOR

CONTRACTUAL PAYMENT PURPOSES ONLY. ACTUAL SIDE SLOPES

VARY WITH THE NATURAL ANGLE OF REPOSE FOR THE ADJACENT

MATERIAL. FOR CLARITY, CHANNEL SIDE SLOPES NOT SHOWN NEAR

STRUCTURES, BUT ARE INCLUDED IN THE PAY PRISM.

3. VERIFY THE LOCATION OF ALL STRUCTURES PRIOR TO DREDGING AND

ADJUST THE DREDGING LIMITS AS NECESSARY TO ENSURE THE OFFSET

4. SEE SPECIFICATION SECTION 35 20 23 FOR OVER-DREDGING RESTRICTIONS.

+10

+20

+10

+20

600 700 800 900 1000 1100400300200100-100 5000

- M

12+50 600 700 800 900 1000 1100400300200100-100 5000

- M

50' 100'010' 20'0

- M

600 700 800 900 1000 1100400300200100-100

- M

+10

+20

+10

+20

C-01

- M

50' 100'010' 20'0

- M

600 700 800 900 1000 1100400300200100-100

- M

+10

+20

+10

+20

C-01

50' 100'010' 20'0

C-01

CROSS SECTION AT STA. 12+50

VERTICAL HORIZONTAL

15+70

21+21

CROSS SECTION AT STA. 15+70

CROSS SECTION AT STA. 21+21

PROJECT CHANNEL

BERTH 3

LOOKING NORTHWESTRANGE DISTANCE IN FEET

N O

SQUARE CONCRETE PILES

(TYPICAL)

ACTUAL PILE

DEPTH VARIES

C H

N E

R G

38-FOOT REQUIRED DEPTH

2-FOOT ALLOWABLE OVERDEPTH

SEE NOTE 1

15' DREDGING OFFSET

AREA TO BE DREDGED

R G

PROJECT CHANNEL

BERTH 5

LOOKING NORTHWESTRANGE DISTANCE IN FEET

N O

SQUARE CONCRETE PILES

(TYPICAL)

ACTUAL PILE

DEPTH VARIES

C H

N E

R G

38-FOOT REQUIRED DEPTH

2-FOOT ALLOWABLE OVERDEPTH

SEE NOTE 1

15' DREDGING OFFSET

AREA TO BE DREDGED

R G

MOORING DOLPHIN

AREA TO BE DREDGED

PROJECT CHANNEL

R G

38-FOOT REQUIRED DEPTH

2-FOOT ALLOWABLE OVERDEPTH

EXISTING BOTTOM

R G

SENSITIVE

STRUCTURES

SENSITIVE

STRUCTURES

APPROXIMATE BOTTOM

(NOT SURVEYED)

LOOKING NORTHWEST

N O

BERTH 3 BERTH 4

BERTH 4

APPROXIMATE BOTTOM

(NOT SURVEYED)

EXISTING BOTTOM

RANGE DISTANCE IN FEET

-m ct

-c n1 se ct io n.

dw g D

G C

R O

O N

S D

, E

C-04

SHEET GENERAL NOTES

N N

C R

O N

D B

C O

N O

B Y:

D R

B Y:

E D

SHEET ID

11 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28

US Army Corps of Engineers

U .S

. A R

M Y

C O

O F

R S

E, D

N M

O B

C O

S U

R T

- B

N T

N D

C E

D R

-F

O O

C T

D U

C O

U N

, F

2E P2

O G

D . S

W . R

1. SEE SPECIFICATION SECTION 35 20 23 FOR INSTRUCTIONS REGARDING

DREDGING ADJACENT TO STRUCTURES.

2. CHANNEL SIDE SLOPES SHOWN ON CROSS SECTIONS ARE FOR

CONTRACTUAL PAYMENT PURPOSES ONLY. ACTUAL SIDE SLOPES

VARY WITH THE NATURAL ANGLE OF REPOSE FOR THE ADJACENT

MATERIAL. FOR CLARITY, CHANNEL SIDE SLOPES NOT SHOWN NEAR

STRUCTURES, BUT ARE INCLUDED IN THE PAY PRISM.

3. VERIFY THE LOCATION OF ALL STRUCTURES PRIOR TO DREDGING AND

ADJUST THE DREDGING LIMITS AS NECESSARY TO ENSURE THE OFFSET

+10

+20

+10

+20

600 700 800 900 1000 1100400300200100-100 5000

- M

42+00 600 700 800 900 1000 1100400300200100-100 5000

50' 100'010' 20'0

C-02

CROSS SECTION AT STA. 42+00

VERTICAL HORIZONTAL

AREA TO BE DREDGED

PROJECT CHANNEL

R G

38-FOOT REQUIRED DEPTH

2-FOOT ALLOWABLE OVERDEPTH

EXISTING BOTTOM

R G

LOOKING NORTHWEST

N O

RANGE DISTANCE IN FEET

-m ct

-c n1 se ct io n.

dw g D

G C

R O

O N

C-05

N N

C R

O N

D B

C O

N O

B Y:

D R

B Y:

E D

SHEET ID

11 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28

US Army Corps of Engineers

U .S

. A R

M Y

C O

O F

R S

E, D

N M

O B

C O

S U

R T

- B

N T

N D

C E

D R

-F

O O

C T

D U

C O

U N

, F

2E P2

O G

D . S

W . R

SHEET GENERAL NOTES

1. SEE SPECIFICATION SECTION 35 20 23 FOR INSTRUCTIONS REGARDING

DREDGING ADJACENT TO STRUCTURES.

2. CHANNEL SIDE SLOPES SHOWN ON CROSS SECTIONS ARE FOR

CONTRACTUAL PAYMENT PURPOSES ONLY. ACTUAL SIDE SLOPES

VARY WITH THE NATURAL ANGLE OF REPOSE FOR THE ADJACENT

MATERIAL. FOR CLARITY, CHANNEL SIDE SLOPES NOT SHOWN NEAR

STRUCTURES, BUT ARE INCLUDED IN THE PAY PRISM.

3. VERIFY THE LOCATION OF ALL STRUCTURES PRIOR TO DREDGING AND

ADJUST THE DREDGING LIMITS AS NECESSARY TO ENSURE THE OFFSET

10+00

15+00

20+00

35+00

40+00

45+00

50+00

55+00

60+00

80+00

110+00

115+00

120+00

11+00

12+00

13+00

14+00

16+00

17+00

18+00

19+00

21+00

22+00

23+00

36+00

37+00

38+00

39+00

41+00

42+00

43+00

44+00

46+00

47+00

48+00

49+00

51+00

52+00

53+00

54+00

56+00

57+00

61+00

62+00

63+00

64+00

81+00

82+00

83+00

0101+00

102+00

109+00

111+00

112+00

113+00

114+00

116+00

117+00

118+00

119+00

121+00

122+00

0+00

C F

202020

252525252525

25 25

30 303030

C-07

D A Y S O N I S L A N D D I S P O S A L A R E A

(D/A-D)

C L

A P

B O A

R D

R E

E K

6' CHAIN LINK FENCE

Y=2,208,000

6, X=

7, Y=2,207,000

8, X=

9, X=

0, X=

1, Y=2,205,000

Y=2,206,000

HECKSCHER DR. (CR. 105)

PIPELINE DISCHARGE AREA

O L D

S T. J O H

N S R

I V E R

APPROXIMATE LOCATION OF

EXISTING DREDGE PIPE SEGMENT

(SEE NOTE 3)

TWO 4' BOX-RISER WEIRS

TWO 30" OUTFALLS

(SEE NOTE 6)

APPROXIMATE DREDGE

PIPELINE ROUTE

(SEE NOTE 1)

TOP OF DIKE (APPROXIMATE

LOWEST DIKE EL. 30.5' - TYPICAL,

SEE NOTE 8)

HECKSCHER DR. (CR. 105)

Y= 2,204,000

C R E E K

P O I N T

C E D A R

SHEET GENERAL NOTES

ACCESS LOCATION

TO DAYSON ISLAND

ROAD ALONG DIKE CREST

WATER LEVEL

STAFF GAUGE

WATER LEVEL

STAFF GAUGE

ST JO 351

ST JO 352

2,207,653.37 2,205,859.38

496,641.59 500,575.11

20.59 12.31

DESIGNATION PID NORTHING EASTING NAVD88

AHB896

AHB895

SURVEY CONTROL --- DAYSON ISLAND

PLANE COORDINATES BASED ON THE STATE PLANE SYSTEM

FLORIDA EAST ZONE (0901), NAD83 (2011, U.S. SURVEY FEET)

THE SURVEY CONTROL MARKS DEPICTED HEREON ARE TO BE USED ONLY AT THIS

DISPOSAL SITE. THEY ARE NOT INTENDED TO BE USED FOR SURVEYING IN THE

NAVIGATION PROJECT.

ST JO 351

ST JO 352

-m ct

-c n1 di sp os al .d w g

N D

C-06

DISPOSAL PLAN - DAYSON ISLAND

SCALE: 1'' = 150'

150' 300'0

SHEET GENERAL NOTES

1. EXACT LIMITS OF THE PIPELINE DISCHARGE ROUTE TO BE APPROVED

IN THE FIELD BY THE CONTRACTING OFFICER PRIOR TO PLACEMENT

OF THE PIPELINE.

2. REFER TO SPECIFICATION SECTION 35 20 23 FOR INFORMATION ON

DEWATERING AND MAXIMUM HEIGHT OF PLACEMENT.

3. CONTRACTOR MAY CONNECT TO THE END STRUCTURES OF THE EXISTING

DREDGE PIPE SEGMENT. THE EXACT LOCATION TO BE SHOWN IN THE FIELD

BY THE CONTRACTING OFFICER. SEE SPECIFICATION SECTION 35 20 23.

4. STATIONS ALONG DIKE ARE FOR REFERENCE PURPOSES ONLY.

5. IF THERE IS SEEPAGE AROUND THE BASE AND OUTSIDE OF THE EXISTING

CONTAINMENT DIKE, REFER TO SPECIFICATIONS SECTION 35 20 23.

6. SEE SPECIFICATION SECTION 35 20 23 FOR INFORMATION ON FOAM DURING

OUTFALL STRUCTURE DISCHARGE.

7. ELEVATIONS ARE IN FEET AND TENTHS AND REFER TO THE NAVD88

DATUM AND ARE ABOVE REFERENCE DATUM UNLESS PRECEDED BY

A (-) SIGN. THIS VERTICAL DATUM IS DIFFERENT THAN THE CHANNEL

HYDROGRAPHIC SURVEY. REFER TO SPECIFIC SURVEY NOTES FOR

DATUM REFERENCES.

8. PORTIONS OF THE TOP OF DIKE CONTAIN A VARYING THICKNESS OF

ASPHALT MILLINGS. THIS LAYER IS NOT CONSIDERED TO BE PART OF

DIKE ELEVATION WHEN IT COMES TO MAXIMUM HEIGHT RESTRICTION

FOR MATERIAL AND/OR WATER PLACEMENTS…

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File details come from the government source that posted it. Updated May 31, 2023.