A21 - SW_05_SWP_20180606_CS_HDDA.PDF

4139414244454749515455575555545453525253

5654535452535253525151504948434039

303030

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141415

84654

46411

111011

171414

191920

5353535252535252535353535352525252525151525252525252515152515251515252515251515251515152515152525252515151515150515151515151515151515151515150505050505050505050505050505050504949495050505151515253525252525151515152525252525153525353545554545452525354535354515352535452525252535454545453535353525150525155545151525151535152525453535352525353515051

595858565758575858585758585857565656565555575758595858575757575858596059605555555555565757565657585757575858575757575757575757565657565757565758575656565655565756575959585859595858575655565656575756575757585858585857595857575656575756575858585757575858575857575856575857565757565657565656

(DNR)

(D

NR

(DNR)

12"

PIPELINEPIPELINE

(DNR)

12.75 in. SHELL

PIPELINE CO., L.P.,

WATER

12.75

in. SHELL PIPELINE

CO. , L.P., CRUDE

12.75 in. SHELL

PIPELINE CO.,

L.P., WATER

12.75 in. SHELL

PIPELINE CO.,

L.P., CRUDE

P20131321

P20070821

P20030237

P2

P20 121489

P19890718

GREEN

BUOY

DREDGE

G.D.

MORGAN

WH-7 STAFF - 01545

(0.0' NAVD88, 2009.55

= 3.32' MLG, 2015 =

-0.18' MLLW, 07-11)

PILOTTOWN - 01525

(0.0' NAVD88,

2009.55 = 3.20'

MLG, 2015 = -0.3'

MLLW, 07-11)

3,9

,00

3,937,000

3,9

,00

3,940,000

3,943,000

3,943,000

3,946,000

3,9

,00

3,949,000

3,9

,00

239,000

9,0

242,000

242,000

245,000

245,000

248,000

248,000

251,000

4,0

Sheet Reference

Number of

Revison Number:

MI

SS

IS

SIP

PI

R

IVE

R

- B .R

. T O

GU

LF

US Army Corps of Engineers

Ch ief

, W ate rw ay s M ain ten an ce S ec tio n

Ch ief

, S urv ey S ec tio n

CORPS OF ENGINEERS U.S. ARMY

Su bm itte d:

Re co mm en de d:

Ap pr ov ed

VICINITY MAP

³

0 5.5 11 16.5 Miles

3.12-20160811

Sh ee t 6

District: CEMVN

SW

_0

5_

SW

P_

_C

S_

HD

DA

Ju ne

SO

UT

HW

ES

T P

AS

S - S

HE

ET

Sheet 4

U.

S.

AR

MY

C

OP

RP

S O

F E

NG

IN

EE

RS

NE

W O

RL

EA

NS

D

IST

RI

CT

DI

SC

LA

IM

ER

Ac ce ss C on str ain ts:

T he

U nit ed S tat es

G ov ern me nt fur nis he s the se da ta an d t he re cip ien t a cc ep ts an d u se s t he m wi th the ex pre ss un de rst an din g t ha t th e U

S Go ve rn me nt ma ke s n o w ar ran tie s, ex pre ss ed

, o r im pli ed co nc ern ing th e a cc ur ac y, co mp let en es s, rea da bil ity

, u sa bil ity or su ita bil ity fo r a ny pa rtic ula r p urp os e o f th e inf orm ati on an d t he da ta fur nis he d.

Th e U nit ed

S tat es sh all be un de r n o l iab ilit y w ha tso ev er to an y p er so n b y r ea so n o f a ny us e ma de th ere of.

T he se da ta be lon g t o t he

G ov ern me nt.

Th ere for e t he rec ipi en t fu lly ag ree s n ot to rep res en t th es e d ata to an yo ne as ot he r tha n G ov er nm en t p rov ide d d ata

. T he re cip ien t m ay no t tr an sfe r the se da ta to oth ers w ith ou t a lso tra ns fer rin g t his

D isc lai me r.

Th e i nfo rm ati on de pic ted on th is ma p r ep re se nts th e r es ult s o f a su rve y c on du cte d o n t he da te ind ica ted an d c an on ly be co ns ide red to rep re se nt the ge ne ra l c on dit ion ex ist ing at th at tim e.

Di str ibu tio n L iab ilit y:

Th e d ata re pre se nts th e r es ult s o f d ata co lle cti on

/pr oc es sin g f or a sp ec ific

U S A rm y C orp s o f E ng ine er s ac tiv ity an d i nd ica tes th e g en era l e xis tin g c on dit ion s.

As su ch it i s o nly va lid fo r it s i nte nd ed us e, co nte nt, tim e a nd ac cu ra cy sp ec ific ati on s.

T he us er is res po ns ibl e f or th e r es ult s of an y o f th e a pp lic ati on of th e d ata fo r o the r th an its in ten de d pu rpo se

Da ta

Co ns tra int s:

Hy dro gr ap hic su rve y d ata is su bje ct to ch an ge rap idl y d ue to se ve ral fa cto rs inc lud ing bu t n ot lim ite d t o d re dg ing ac tiv ity an d n atu ral sh oa lin g a nd sc ou rin g p roc es se s.

Th e U . S

Ar my C or ps of E ng ine ers ac ce pts no re sp on sib ilit y f or ch an ge s i n the hy dr og rap hic al co nd itio ns w hic h d ev elo p a fte r th e d ate of pu bli ca tio n.

Th is da ta is int en de d f or U

. S . A rm y C or ps of E ng ine ers in ter na l u se . P rud en t m ar ine rs sh ou ld no t re ly so lel y u po n i t.

Su rve ye d B y:

Plo tte d B y:

Ch ec ke d B y:

HN

P,T

DG

,LL

B &

JH

TS

S

MS

K

5 13

NOTES:

0 500 1,000 1,500 2,000 2,500

Feet

LEGEND

¾ Obstruction Point çè Wrecks-Submerged

!( Shoalest Sounding**

X ( Red Navigation Buoy X ( Green Navigation Buoy

Gage Reading:

Sea Conditions:

Vessel Name:

Survey Type:

Sounding Frequency***:

0.8 MLLW @ PILOT TOWN @ 0920

CALM

JOHN BOPP & OB-173

CONDITION, SB

LOWBeacon, General_(

Federal Navigation Channel Federal Navigation Center Line

Unconfirmed Pipeline/Cable As-built Pipeline/Cable

Borrow Area

Project Depth Contour

Cable Area

Placement Area Anchorage Area

Horizontal Coordinate System:

North American Datum of 1983 (NAD83), projected to the State Plane Coordinate System (SPCS), Louisiana South Zone. Distance units in U.S. Survey Feet.

Vertical Datum:

Soundings are shown in feet and indicate depths below Mean Lower Low Water (MLLW, 07-11).

Datum Relationships for gage 01525 as of July 2015:

0.0' NAVD88 = -0.3' MLLW = 3.20' MLG

Distances on the Mississippi River, above and below Head of Passes are shown at 1 mile intervals.

The location of navigation aids are base on and provided by the U.S. Coast Guard.

2016 Aerial Photography data source: Precision Aerial Reconnaissance, LLC (1998 DOQQ in green) Reference is N.O.A.A. Navigation Chart No. 11361.

** Shoalest Sounding per Quarter per Reach.

*** High frequency (200 kHz) survey data represents the first signal return at a sounding location and will include suspended solids, known as "fluff", if present. Low frequency (24 kHz) survey data normally penetrates through this "fluff" layer to depict elevations of consoldiated bottom material. Low frequency accuracies may vary depending on channel conditions and fathometer settings.

S o u t h w e s t

P a s s

111213

S o u t h P a s s

P a s s A L o u t r e

-10' to -20' -20' to -30' -30' to -40' -40' to -45'

-48.5' to -55' -55' and below

-10' and above

-45' to -48.5'

B2ODTASS

Text Box

CUTTERHEAD DREDGE G.D. MORGAN

DREDGING MILE 2.5 AHP TO MILE 1.5 BHP

WEST HALF OF THE CHANNEL