A21 - Sawdust Bend Post-Con North Disposal Area Survey

SCALE: NTS

NTS NTS NTS NTS

PLAN SCALE

VICINITY MAP (N.T.S.)

INDEX TO SHEETS

SHEET NO. DESCRIPTION

1 TITLE PAGE

2 DISPOSAL AREA PLAN VIEW

3 DISPOSAL AREA SURVEY PLAN VIEW

4 MAGNETOMETER SURVEY PLAN VIEW

5 REPORT TABLES

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REG. No. 4780

REGISTERED

PROFESSIONAL

KEITH J. ROBERTS

PREPARED BY: HYDROTERRA TECHNOLOGIES, LLC. - 202 JACOBS RUN, SCOTT, LA 70583

THIS MAP REPRESENTS AN ACTUAL FIELD

SURVEY MADE UNDER DIRECT

SUPERVISION OF THE UNDERSIGNED.

KEITH J. ROBERTS, PLS # 4780

202 JACOBS RUN

SCOTT, LOUISIANA 70583

(337) 706-8219

LAND SURVEYING FIRM NO. 614

HYDROTERRA TECHNOLOGIES, LLC

WEEKS MARINE, INC.

MISSISSIPPI RIVER, BATON ROUGE TO THE GULF

HEAD OF PASSES

HOPPER DREDGE DISPOSAL AREA PROJECT (#14-2)

POST-CONSTRUCTION SURVEY

SAWDUST BEND DISPOSAL AREAS

PLAQUEMINES PARISH, LA.

HOPPER DREDGE

DISPOSAL AREA PROJECT (14-2)

SAWDUST BEND DISPOSAL AREAS

POST-CONSTRUCTION SURVEY

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REVISED BY:

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DATE:

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PROJECT LOCATION

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DATE: 2/26/2018

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JOB# 2161037

AutoCAD SHX Text FILE: Sawdust Bend Post-Con North Disposal Area Survey (022618).dwg

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SHEET: 1 OF 3

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PLAQUEMINES PARISH, LA

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TITLE PAGE

080417JML001

080417JML004

Survey Control Point Table

Point Name

080417JML004

080417JML001

Northing (UsFt)

238967.04

238975.26

Easting (UsFt)

3953588.22

3953560.33

Elevation (MLG)

7.19

8.51

Description

TBM

TBM

2,000' 0' 1,000' 2,000'

1" = 2,000'

LOUISIANA SOUTH ZONE - NAD83 HPGN DATUM

DERIVED VIA GPS KINEMATIC OBSERVATIONS

PREPARED BY: HYDROTERRA TECHNOLOGIES, LLC. - 202 JACOBS RUN, SCOTT, LA 70583

REGISTERED

PROFESSIONAL

KEITH J. ROBERTS

NOTES

1. ALL HORIZONTAL COORDINATES ARE BASED ON LOUISIANA SOUTH ZONE - NAD83 HPGN DATUM, US

SURVEY FOOT.

2. ELEVATIONS ARE BASED ON M.L.G. AS DERIVED FROM SOUTHWEST PASS GAUGE 01525 (GAUGE 0

NAVD88 = +3.2 MLG).

3. TOPOGRAPHIC SURVEY DATA ACQUISITION PERFORMED USING RTK POLING.

4. MAGNETOMETER SURVEY PERFORMED USING A GEOMETRICS 882 MAGNETOMETER.

5. THIS DRAWING INDICATES GENERAL CONDITIONS AT THE TIME OF SURVEY.

6. PRE-CONSTRUCTION SURVEY DATA ACQUISITION WAS PERFORMED BY HYDROTERRA TECHNOLOGIES, LLC AUGUST 4 - 8, 2017.

7. POST-SURVEY DATA ACQUISITION WAS PERFORMED BY HYDROTERRA TECHNOLOGIES, LLC JANUARY

23-26, 2018.

HORIZONTAL SCALE

OVERHEAD POWERLINE

(DIGITIZED)

EXISTING PIPELINE

PROPOSED DISPOSAL AREA

(DIGITIZED FROM PLANS)

EXISTING PIPELINE

(AS SHOWN IN PLANS)

HOPPER DREDGE

DISPOSAL AREA PROJECT (14-2)

SAWDUST BEND DISPOSAL AREAS

POST-CONSTRUCTION SURVEY

FRESHWATER RESERVOIR

(CASTILLE DISPOSAL SITE)

SAWDUST BEND DISPOSAL SITES

(MAX ELEV +8.0 M.L.G.)

SAWDUST BEND

NORTH DISPOSAL SITE

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NOTE: BASED ON SURVEY DATA AND VISUAL FIELD

OBSERVATIONS, THE APPROXIMATE AREA OF AREA

CREATED FROM DREDGED MATERIAL IS ± 107 ACRES.

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DATE:

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JOB# 2161037

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SHEET: 2 OF 3

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DATE: 2/26/2018

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LEGEND

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PLAQUEMINES PARISH, LA

DISPOSAL AREA PLAN VIEW

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LOUISIANA SOUTH ZONE - NAD83 HPGN DATUM

DERIVED VIA GPS KINEMATIC OBSERVATIONS

PREPARED BY: HYDROTERRA TECHNOLOGIES, LLC. - 202 JACOBS RUN, SCOTT, LA 70583

REGISTERED

PROFESSIONAL

KEITH J. ROBERTS

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OVERHEAD POWERLINE

(DIGITIZED)

EXISTING PIPELINE

PROPOSED DISPOSAL AREA

(DIGITIZED FROM PLANS)

EXISTING PIPELINE

(AS SHOWN IN PLANS)

SURVEY TRANSECT

ELEVATION (M.L.G.)

0.0'

300' 0' 150' 300'

1" = 300'

HORIZONTAL SCALE

HOPPER DREDGE

DISPOSAL AREA PROJECT (14-2)

SAWDUST BEND DISPOSAL AREAS

POST-CONSTRUCTION SURVEY

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REVISED BY:

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DATE:

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JOB# 2161037

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LEGEND

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SHEET: 3 OF 3

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DATE: 2/26/2018

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PLAQUEMINES PARISH, LA

SURVEY PLAN VIEW