AERIAL LIDAR SURVEY Chef Menteur Project

February 17, 2017

Submitted to: Matt Conn Director of Operations SEG Environmental LLC 224 Rue De Jean Lafayette, LA 70508

Submitted by: Fugro, Inc. 200 Dulles Drive Lafayette, Louisiana 70506

Job No. 22.17800026

A member of the Fugro group of companies with offices throughout the world. 1 TABLE OF CONTENTS

1.0 GPS NETWORK SUMMARY AND MAP

2.0 CONTROL DESCRIPTION SHEETS

3.0 FIELD NOTES

1.0 GPS NETWORK SUMMARY AND MAP

SEG Chef Menteur Fugro Job # 22.17800026 February 2017

GPS PUB. PUB. NAVD 88 GEOID 09 NAVD 88 DELTA NAME POSITION ELLIP ELEV. HEIGHT ELEV. GPS NGS PID DESCRIPTION (NAD83) METERS METERS METERS METERS METERS

BORG 30 04 15.16783 N -23.711 2.577 -26.288 2.589 -0.012 BH1134 Vertical Offset of "E 3146" 89 48 05.02694 W

FTPK 30 09 56.40531 N -24.835 1.682 -26.517 1.723 -0.041 BH1164 Vertical Offset of "PIKE RESET" 89 44 20.88068 W

MARY 30 01 22.70956 N -22.901 3.272 -26.173 DO8512 MARY_289 LSU C4G CORS ARP 89 54 46.80194 W

MSIN 30 18 42.20573 N -17.309 9.739 -27.049 DN8737 INFINITY CENTER CORS ARP 89 36 15.50727 W

SJHS 30 16 49.45698 N -12.897 13.849 -26.746 GulfNet SJHS 89 46 47.85767 W

Note: The positions of the stations listed above are referenced to NAD83 (2011) (EPOCH 2010.0) horizontally & NAVD88 vertically. These coordinates were used as control for the FLI-MAP survey performed in February 2017. Fugro utilized FM400-006 for data collection.

The horizontal positions were computed in a least squares adjustment of the GPS data by holding to the published NAD83 (2011) positions of CORS: "MARY" and "MSIN".

The vertical positions (ellipsoidal heights) were computed in a least squares adjustment of the GPS data by holding to the published NAD83 (2011) (EPOCH 2010.0) ellipsoidal height of CORS: "MSIN". The NAVD88 orthometric height (elevation) was computed by applying GEOID 09 to the computed ellipsoidal height of each station.

The elevations listed above (in black) are published NAVD88 elevations. The elevations listed above (in blue) are GPS derived elevations (orthometric heights) referenced to NAVD88. ➤

Project Information Coordinate System

Name: D:\Data\Trimble Business Name: US State Plane 1983 Center\22.17800026 SEG.vce Datum: NAD 1983 (Conus) Size: 349 KB Zone: Louisiana South 1702 Modified: 2/13/2017 8:19:23 PM (UTC:-6) Geoid: GEOID09 (Conus) Time zone: Central Standard Time Vertical datum:

Reference 22.17800026 number: Description: Chef Menteur Project

Network Adjustment Report

Adjustment Settings

Set-Up Errors GNSS Error in Height of Antenna: 0.001 m Centering Error: 0.001 m Covariance Display Horizontal: Propagated Linear Error [E]: U.S. Constant Term [C]: 0.000 m Scale on Linear Error [S]: 1.960 Three-Dimensional Propagated Linear Error [E]: U.S. Constant Term [C]: 0.000 m Scale on Linear Error [S]: 1.960

Adjustment Statistics

Number of Iterations for Successful Adjustment: 2 Network Reference Factor: 0.99 Chi Square Test (95%): Passed Precision Confidence Level: 95% Degrees of Freedom: 15 Post Processed Vector Statistics Reference Factor: 0.99 Redundancy Number: 15.00 A Priori Scalar: 0.48

Control Coordinate Comparisons

Values shown are control coordinates minus adjusted coordinates. ΔEasting ΔNorthing ΔElevation ΔHeight Point ID (Meter) (Meter) (Meter) (Meter)

BORG ? ? ? 0.012

FTPK ? ? ? 0.041

MARY ? ? ? 0.004

SJHS -0.014 -0.013 ? -0.037

Control Point Constraints

East σ North σ Height σ Elevation σ Point ID Type (Meter) (Meter) (Meter) (Meter) MARY Local Fixed Fixed MSIN Local Fixed Fixed Fixed Fixed = 0.000001(Meter)

Adjusted Grid Coordinates

Point Easting Easting Error Northing Northing Error Elevation Elevation Error Constraint ID (Meter) (Meter) (Meter) (Meter) (Meter) (Meter) BORG 1147690.488 0.001 175110.342 0.001 2.577 0.008 FTPK 1153546.553 0.001 185698.139 0.001 1.682 0.007 MARY 1136997.378 ? 169662.105 ? 3.272 0.011 LL MSIN 1166287.185 ? 202074.757 ? 9.739 ? LLh SJHS 1149442.113 0.001 198361.378 0.001 13.849 0.008

Adjusted Geodetic Coordinates

Height Height Error Point ID Latitude Longitude Constraint (Meter) (Meter) BORG N30°04'15.16783" W89°48'05.02694" -23.711 0.008 FTPK N30°09'56.40531" W89°44'20.88068" -24.835 0.007 MARY N30°01'22.70956" W89°54'46.80194" -22.901 0.011 LL MSIN N30°18'42.20573" W89°36'15.50727" -17.309 ? LLh SJHS N30°16'49.45698" W89°46'47.85767" -12.897 0.008

Adjusted ECEF Coordinates

Point X X Error Y Y Error Z Z Error 3D Error Constraint ID (Meter) (Meter) (Meter) (Meter) (Meter) (Meter) (Meter) - BORG 19148.783 0.001 0.007 3177164.008 0.004 0.008 5524270.095 - FTPK 25127.939 0.001 0.007 3186252.471 0.004 0.008 5518972.509 - MARY 8392.287 ? ? 3172567.637 ? ? LL 5526956.584 - MSIN 38058.598 ? ? 3200244.368 ? ? LLh 5510750.869 - SJHS 21170.761 0.001 0.007 3197248.810 0.004 0.008 5512596.933

Error Ellipse Components

Semi-major axis Semi-minor axis Point ID Azimuth (Meter) (Meter) BORG 0.002 0.002 36° FTPK 0.001 0.001 30° SJHS 0.002 0.002 39°

2.0 CONTROL DESCRIPTION SHEETS

STATION NAME: “E 3146” PID: BH1134 JCLS IDENTIFIER: VERTICALLY OFFSET TO “BORG”

Monument Location: To reach the station from the intersection of US-90 and US-11, E of New Orleans, LA, travel NE on US- 90 for 4.1 miles to the station on the left. Station is 5/8” rebar set 2” below the surface, 41.5' SW of a cable warning post, 27.5' N of the centerline of the road and 72.0' SW of a power pole.

Published NAVD88 (Meters) Elevation = 1.58

Leveled NAVD88 (Meters) Elevation = 2. 2.589

Adjusted NAD 83 (2011) (EPOCH 2010.0) Lat. N 30 04 15.16783 Long. W 89 48 05.02694

Adjusted NAVD88 (Meters) Elevation = 2.577

*********************************************************************** HT_MOD - This is a Height Modernization Survey Station. TIDAL BM - This is a Tidal Bench Mark. DESIGNATION - E 3146 = VERTICALLY OFFSET TO “BORG” PID - BH1134 STATE/COUNTY- LA/ORLEANS COUNTRY - US USGS QUAD - CHEF MENTEUR (1994)

*CURRENT SURVEY CONTROL ______NAD 83(2011) POSITION- 30 04 14.05633(N) 089 48 05.39179(W) ADJUSTED NAD 83(2011) ELLIP HT- -24.716 (meters) (06/27/12) ADJUSTED NAD 83(2011) EPOCH - 2010.00 NAVD 88 ORTHO HEIGHT - 1.58 (meters) 5.2 (feet) GPS OBS NAVD 88 EPOCH - 2009.55 **This station is located in a suspected subsidence area (see below). ______NAVD 88 orthometric height was determined with geoid model GEOID12A GEOID HEIGHT - -26.298 (meters) GEOID12A GEOID HEIGHT - -26.298 (meters) GEOID12B NAD 83(2011) X - 19,139.068 (meters) COMP NAD 83(2011) Y - -5,524,286.409 (meters) COMP NAD 83(2011) Z - 3,177,133.885 (meters) COMP LAPLACE CORR - -0.58 (seconds) DEFLEC12B

Network accuracy estimates per FGDC Geospatial Positioning Accuracy Standards: FGDC (95% conf, cm) Standard deviation (cm) CorrNE Horiz Ellip SD_N SD_E SD_h (unitless) ------NETWORK 0.43 2.06 0.11 0.21 1.05 0.02347032 ------The horizontal coordinates were established by GPS observations and adjusted by the National Geodetic Survey in June 2012. NAD 83(2011) refers to NAD 83 coordinates where the reference frame has been affixed to the stable North American tectonic plate. See NA2011 for more information. The horizontal coordinates are valid at the epoch date displayed above which is a decimal equivalence of Year/Month/Day.

** This station is in an area of known vertical motion. Due to the variability of land subsidence, uplift, and crustal motion, NGS has, determined the orthometric heights for marks in these suspect subsidence areas should be considered valid only at the epoch date associated with the orthometric height. These heights must always be validated when used as control. All previously superseded orthometric heights are now considered suspect and are available in the superseded section. NGS does not recommend using suspect or superseded heights as control.

The orthometric height was determined by GPS observations and a high-resolution geoid model using precise GPS observation and processing techniques. Significant digits in the geoid height do not necessarily reflect accuracy. GEOID12B height accuracy estimate available here.

This Tidal Bench Mark is designated as VM 19148 by the CENTER FOR OPERATIONAL OCEANOGRAPHIC PRODUCTS AND SERVICES. This Tidal Bench Mark is designated as VM 21274 by the CENTER FOR OPERATIONAL OCEANOGRAPHIC PRODUCTS AND SERVICES.

The Laplace correction was computed from DEFLEC12B derived deflections. The ellipsoidal height was determined by GPS observations and is referenced to NAD 83. The X, Y, and Z were computed from the position and the ellipsoidal ht.

Photographs are available for this station.

The following values were computed from the NAD 83(2011) position.

North East Units Scale Factor Converg. SPC LA S - 175,075.991 1,147,681.175 MT 0.99992648 +0 45 57.4 SPC LA S - 574,395.15 3,765,350.65 sFT 0.99992648 +0 45 57.4 UTM 16 - 3,329,915.137 229,939.447 MT 1.00049991 -1 24 16.5

- Elev Factor x Scale Factor = Combined Factor SPC LA S - 1.00000388 x 0.99992648 = 0.99993036 UTM 16 - 1.00000388 x 1.00049991 = 1.00050379

U.S. NATIONAL GRID SPATIAL ADDRESS: 16RBU2993929915(NAD 83)

SUPERSEDED SURVEY CONTROL

ELLIP H (10/11/11) -24.728 (m) GP( ) 4 1 NAD 83(2007)- 30 04 14.05642(N) 089 48 05.39265(W) AD(2002.00) A ELLIP H (03/12/08) -24.707 (m) GP(2006.81) 3 1 NAVD 88 (03/12/08) 1.58 (m) GEOID03 model used GP(2006.81) NAVD 88 (12/05/96) 1.813 (m) 5.95 (f) ADJUSTED 1 1 NAVD 88 (02/14/94) 1.805 (m) 5.92 (f) SUPERSEDED 1 1 NAVD 88 (06/15/91) 1.826 (m) 5.99 (f) SUPERSEDED 1 1 NGVD 29 (05/21/91) 1.867 (m) 6.13 (f) ADJUSTED 1 1 NGVD 29 (??/??/87) 1.881 (m) 6.17 (f) SUPERSEDED 1 1

MARKER: DD = SURVEY DISK SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT STAMPING: E 3146 MARK LOGO: LAGS PROJECTION: FLUSH MAGNETIC: N = NO MAGNETIC MATERIAL STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO STABILITY: SURFACE MOTION SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR SATELLITE: SATELLITE OBSERVATIONS - August 03, 2010

HISTORY - Date Condition Report By HISTORY - UNK MONUMENTED LAGS HISTORY - 1951 GOOD CGS HISTORY - 1972 GOOD NGS HISTORY - 1985 GOOD NGS HISTORY - 1986 GOOD NGS HISTORY - 19901022 GOOD NGS HISTORY - 19941024 GOOD NGS HISTORY - 20060408 GOOD NGS HISTORY - 20081111 GOOD JCLS HISTORY - 20100803 GOOD NGS HISTORY - 20111104 GOOD JCLS

STATION DESCRIPTION

DESCRIBED BY COAST AND GEODETIC SURVEY 1951 15.25 MI E FROM NEW ORLEANS. 15.25 MILES EAST ALONG U. S. HIGHWAY 90 FROM THE BRIDGE OVER CHEF MENTEUR PASS, ABOUT 0.15 MILE NORTHEAST OF THE BRIDGE OVER CHEF MENTEUR PASS, AT THE JUNCTION OF A DRIVE SOUTHEAST TO A HOUSE WITH TAN BRICK SIDING, 26 1/2 FEET SOUTHEAST OF THE CENTER LINE OF THE HIGHWAY, 25 FEET SOUTHWEST OF THE CENTER LINE OF THE DRIVE, ABOUT 1 FOOT BELOW THE HIGHWAY AND SET IN THE TOP OF A CONCRETE POST ABOUT 3 INCHES UNDERGROUND. THIS MARK WAS PREVIOUSLY REPORTED AS NOT RECOVERED IN THE YEARS 1963, 1969 AND 1970.

STATION RECOVERY (1972)

RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1972 15.25 MILES EAST ALONG U. S. HIGHWAY 90 FROM THE BRIDGE OVER THE INNER HABOR NAVIGATION CANAL AT NEW ORLEANS, ABOUT 0.15 MILE NORTHEAST OF THE BRIDGE OVER CHEF MENTEUR PASS, 37 FEET SOUTHEAST OF THE CENTER OF THE HIGHWAY, 23 FEET SOUTHWEST OF THE CENTER OF THE DRIVEWAY TO A RED BRICK HOUSE, 42.5 FEET SOUTH-SOUTHWEST OF A 6 INCH OAK TREE, 23 FEET NORTHEAST OF THE PROJECTED PLANE OF THE SOUTHWEST WALL OF THE BRICK HOUSE AND 178.3 FEET NORTHWEST OF THE SOUTHWEST CORNER OF THE RED BRICK HOUSE. THE MARK IS SET IN A MANHOLE 12 INCHES IN DIAMETER AND FLUSH WITH THE GROUND.

STATION RECOVERY (1985)

RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1985 RECOVERED IN GOOD CONDITION.

STATION RECOVERY (1986)

RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1986 RECOVERED IN GOOD CONDITION.

STATION RECOVERY (1990)

RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1990 0.25 KM (0.16 MI) EASTERLY ALONG U.S. HIGHWAY 90 (CHEF MENTEUR HIGHWAY) FROM THE EAST END OF THE HIGHWAY BRIDGE SPANNING THE CHEF MENTEUR PASS IN NEW ORLEANS, 54.3 M (178.1 FT) NORTHWEST OF THE SOUTHWEST CORNER OF A BRICK HOUSE, 11.3 M (37.1 FT) SOUTHEAST OF THE CENTERLINE OF THE HIGHWAY, 7.0 M (23.0 FT) SOUTHWEST OF THE CENTER OF A DRIVEWAY, AND THE MONUMENT IS 0.9 M (3.0 FT) BELOW THE GROUND SURFACE. NOTE- -ACCESS TO THE MONUMENT IS THROUGH A 12-INCH METAL MANHOLE COVER THAT IS FLUSH WITH THE GROUND SURFACE.

STATION RECOVERY (1994)

RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1994 (GAS) 23.3 KM (14.45 MI) EASTERLY ALONG U.S. HIGHWAY 90 (CHEF MENTEUR HIGHWAY) FROM THE JUNCTION OF INTERSTATE HIGHWAY 10 IN NEW ORLEANS, 54.3 M (178.1 FT) NORTHWEST OF THE SOUTHWEST CORNER OF A BRICK HOUSE, 11.3 M (37.1 FT) SOUTHEAST OF THE CENTERLINE OF THE HIGHWAY, 7.0 M (23.0 FT) SOUTHWEST OF THE CENTER OF A DRIVEWAY, 0.5 M (1.6 FT) BELOW THE LEVEL OF THE HIGHWAY, AND THE MONUMENT IS RECESSED 0.1 M (0.3 FT) BELOW THE GROUND SURFACE. NOTE--ACCESS TO THE MONUMENT IS THROUGH A 12-INCH METAL COVER PRECAST WATER S+W BD.

STATION RECOVERY (2006)

RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 2006 (RLT) RECOVERED IN GOOD CONDITION. ADD FOLLOWING--1.0 FT SOUTHEAST OF A CARSONITE WITNESS POST.

STATION RECOVERY (2008)

RECOVERY NOTE BY JOHN CHANCE LAND SURVEYS INC 2008 RECOVERED IN GOOD CONDITION.

STATION RECOVERY (2010)

RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 2010 (RWA) RECOVERED AS DESCRIBED.

STATION RECOVERY (2011)

RECOVERY NOTE BY JOHN CHANCE LAND SURVEYS INC 2011 RECOVERED IN GOOD CONDITION.

STATION NAME: “PIKE RESET” PID: BH1164 JCLS IDENTIFIER: VERTICALLY OFFSET TO “FTPK”

Monument Location: To reach the station from the intersection of US-90 and SR-433, S of Slidell, LA, travel SW on US-90 for 1.3 miles to the entrance to “Fort Pike” national park. Turn left to travel NE for 0.1 mile to the station on the left, between the bridge and the entrance road. The station is a 5/8” rebar set 1” below grade, 46.4’ NW of the approximate centerline of the entrance road, 44.6’ WSW of the SW ‘most edge of the bridge, 175.1’ NNE of an underground fiber optic marker, and 51.4 W of a rusty PK nail set in the NW shoulder of the entrance road.

Published NAVD88 (Meters) Elevation = 2.47

Leveled NAVD88 (Meters) Elevation = 1.723

Adjusted NAD 83 (2011) (EPOCH 2010.0) Lat. N 30 09 56.40531 Long. W 89 44 20.88068

Adjusted NAVD88 (Meters) Elevation = 1.682

*********************************************************************** TIDAL BM - This is a Tidal Bench Mark. DESIGNATION - PIKE RESET = VERTICALLY OFFSET TO “FTPK” PID - BH1164 STATE/COUNTY- LA/ORLEANS COUNTRY - US USGS QUAD - RIGOLETS (1993)

*CURRENT SURVEY CONTROL ______NAD 83(2011) POSITION- 30 09 59.67843(N) 089 44 14.66904(W) ADJUSTED NAD 83(2011) ELLIP HT- -24.052 (meters) (06/27/12) ADJUSTED NAD 83(2011) EPOCH - 2010.00 NAVD 88 ORTHO HEIGHT - 2.46 (meters) 8.1 (feet) LEVELING NAVD 88 EPOCH - 2009.55 **This station is located in a suspected subsidence area (see below). **This station is included in the VTDP model (see below). ______GEOID HEIGHT - -26.522 (meters) GEOID12B NAD 83(2011) X - 25,293.913 (meters) COMP NAD 83(2011) Y - -5,518,921.779 (meters) COMP NAD 83(2011) Z - 3,186,340.004 (meters) COMP LAPLACE CORR - -0.50 (seconds) DEFLEC12B OBS GRAVITY - 979,332.1 (mgal) GRAV_OBS

VERT ORDER - THIRD

The horizontal coordinates were established by GPS observations and adjusted by the National Geodetic Survey in June 2012. NAD 83(2011) refers to NAD 83 coordinates where the reference frame has been affixed to the stable North American tectonic plate. See NA2011 for more information. The horizontal coordinates are valid at the epoch date displayed above which is a decimal equivalence of Year/Month/Day.

** The orthometric height was determined with a Vertical Time-dependent Positioning (VTDP) model and has been validated through GNSS observations for the epoch indicated. For additional information on VTDP, please refer to the following web pages: www.ngs.noaa.gov/heightmod/GulfCoastProject.shtml www.ngs.noaa.gov/heightmod/NOAANOSNGSTR50.pdf

Significant digits in the geoid height do not necessarily reflect accuracy. GEOID12B height accuracy estimate available here. This Tidal Bench Mark is designated as VM 7155 by the CENTER FOR OPERATIONAL OCEANOGRAPHIC PRODUCTS AND SERVICES. The Laplace correction was computed from DEFLEC12B derived deflections. The ellipsoidal height was determined by GPS observations and is referenced to NAD 83. The observed gravity was obtained from relative gravimeter ties to the IGSN71 gravity network. The X, Y, and Z were computed from the position and the ellipsoidal ht.

Photographs are available for this station.

The following values were computed from the NAD 83(2011) position.

North East Units Scale Factor Converg. SPC LA S - 185,801.225 1,153,711.327 MT 0.99992991 +0 47 52.7 SPC LA S - 609,582.85 3,785,134.58 sFT 0.99992991 +0 47 52.7 SPC MS E - 74,231.432 212,917.797 MT 1.00004352 -0 27 15.6 SPC MS E - 243,540.96 698,547.81 sFT 1.00004352 -0 27 15.6 UTM 16 - 3,340,409.851 236,375.375 MT 1.00045750 -1 22 35.0

- Elev Factor x Scale Factor = Combined Factor SPC LA S - 1.00000378 x 0.99992991 = 0.99993369 SPC MS E - 1.00000378 x 1.00004352 = 1.00004730 UTM 16 - 1.00000378 x 1.00045750 = 1.00046128

Primary Azimuth Mark Grid Az SPC LA S - PIKE AZ MK RESET 214 32 34.4 SPC MS E - PIKE AZ MK RESET 215 47 42.7 UTM 16 - PIKE AZ MK RESET 216 43 02.1

U.S. NATIONAL GRID SPATIAL ADDRESS: 16RBU3637540409(NAD 83)

------| PID Reference Object Distance Geod. Az | dddmmss.s | BH1165 PIKE RM 4 31.684 METERS 00526 | BH2777 FORT PIKE BRIDGE C OF DRAW LT APPROX. 0.6 KM 0362557.7 | BH2783 L AND N RR BRIDGE C MID SPAN APPROX.10.3 KM 0965852.3 | BH1159 PIKE AZ MK RESET 2152027.1 | DD8466 PIKE RM 1 282.398 METERS 22723 | BH1160 PIKE RM 3 20.570 METERS 25316 | BH2798 NORTHEAST DRAW APPROX.10.3 KM 2940143.8 | BH1162 PIKE RM 2 33.982 METERS 30814 | BH1163 C 193 25.098 METERS 31952 | BH2862 SLIDELL SCHNEIDER BRICK CO TK APPROX.12.6 KM 3364345.6 | BH2863 SLIDELL GULF ST CREOSTE CO TK APPROX.13.6 KM 3401647.7 | BH2868 SLIDELL MUNICIPAL TANK 1931 APPROX.12.9 KM 3402128.9 | BH2871 SLIDELL PAN AM TANK APPROX.14.1 KM 3431417.7 | ------|

SUPERSEDED SURVEY CONTROL

ELLIP H (03/12/08) -24.060 (m) GP( ) 3 1 NAD 83(2007)- 30 09 59.67844(N) 089 44 14.66970(W) AD(2002.00) 0 ELLIP H (02/10/07) -24.057 (m) GP(2002.00) NAD 83(1992)- 30 09 59.67858(N) 089 44 14.66961(W) AD(2004.65) B ELLIP H (06/22/05) -24.061 (m) GP(2004.65) 4 1 NAD 83(1993)- 30 09 59.67794(N) 089 44 14.66811(W) AD( ) 1 NAD 83(1992)- 30 09 59.68081(N) 089 44 14.66732(W) AD( ) 1 NAD 83(1986)- 30 09 59.69185(N) 089 44 14.66457(W) AD( ) 1 NAD 27 - 30 09 58.98500(N) 089 44 14.44500(W) AD( ) 1 NAVD 88 (03/12/08) 2.47 (m) UNKNOWN model used GP(2006.81) NAVD 88 (06/22/05) 2.48 (m) GEOID03 model used GP(2004.65) NAVD 88 (12/05/96) 2.630 (m) 8.63 (f) ADJUSTED 1 1 NAVD 88 (02/14/94) 2.617 (m) 8.59 (f) SUPERSEDED 1 1 NAVD 88 (06/15/91) 2.649 (m) 8.69 (f) SUPERSEDED 1 1 NGVD 29 2.68 (m) 8.8 (f) LEVELING 3 NGVD 29 (05/21/91) 2.680 (m) 8.79 (f) ADJUSTED 1 1 NGVD 29 (??/??/87) 2.708 (m) 8.88 (f) SUPERSEDED 1 1 NGVD 29 2.71 (m) 8.9 (f) LEVELING 3

MARKER: DS = TRIANGULATION STATION DISK SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT STAMPING: PIKE 1931 1952 MARK LOGO: CGS PROJECTION: FLUSH MAGNETIC: N = NO MAGNETIC MATERIAL STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO STABILITY: SURFACE MOTION SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR SATELLITE: SATELLITE OBSERVATIONS - November 04, 2011

HISTORY - Date Condition Report By HISTORY - 1952 MONUMENTED CGS HISTORY - 1954 GOOD CGS HISTORY - 1963 GOOD CGS HISTORY - 1965 GOOD CGS HISTORY - 1965 GOOD LADH HISTORY - 1966 GOOD CGS HISTORY - 1969 GOOD CGS HISTORY - 1970 GOOD NGS HISTORY - 1971 GOOD NGS HISTORY - 1972 GOOD NGS HISTORY - 1977 GOOD NGS HISTORY - 1979 GOOD PGEG HISTORY - 1984 GOOD LA-051 HISTORY - 1985 GOOD NGS HISTORY - 1986 GOOD NGS HISTORY - 19901024 GOOD NGS HISTORY - 19930317 GOOD NGS HISTORY - 19941018 GOOD NGS HISTORY - 20040413 GOOD NGS HISTORY - 20060321 GOOD NGS HISTORY - 20060430 GOOD NGS HISTORY - 20081111 GOOD JCLS HISTORY - 20100917 GOOD USACE HISTORY - 20111104 GOOD JCLS

STATION DESCRIPTION

DESCRIBED BY COAST AND GEODETIC SURVEY 1952 (PLB) STATION AND R.M. 2 RECOVERED. STATION MARK FOUND LEANING TO SW AND NEW SURFACE MARK ESTABLISHED OVER UNDERGROUND MARK. R.M. 3 WAS ESTABLISHED. A NEW DESCRIPTION FOLLOWS-- STATION IS ABOUT 8 MILES SE OF SLIDELL ON W EDGE OF OLD FORT PIKE, AT S END OF THE NEW RIGOLETS BRIDGE ON U.S. HIGHWAY 90, 118 FEET S OF THE SE CORNER OF BRIDGE TENDERS HOUSE, 305 FEET S OF THE CENTER LINE OF S END OF BRIDGE, 147 FEET E OF CENTER LINE OF U.S. HIGHWAY 90, AND BETWEEN THE MOAT OF THE FORT AND THE PAVEMENT.

SURFACE AND UNDERGROUND MARKS ARE STANDARD DISKS SET IN CONCRETE. SURFACE MARK IS STAMPED PIKE 1931 1952 AND IS FLUSH WITH THE GROUND. R.M. 2 IS 36 FEET E OF CENTER LINE OF U.S. HIGHWAY 90, 7 FEET E OF A ROCK WELL. IT IS A STANDARD DISK SET IN TOP OF A CONCRETE MONUMENT, STAMPED PIKE NO 2, AND FLUSH WITH THE GROUND.

R.M. 3 WAS ESTABLISHED IN THE CONCRETE FOUNDATION OF THE AERO BEACON AND DIRECTLY UNDER THE BEACON LIGHT WHICH IS LOCATED ON THE LAWN OF OLD FORT PIKE. IT IS A STANDARD DISK STAMPED PIKE NO 3 1952.

STATION RECOVERY (1954)

RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1954 (RAE) THE RECOVERY NOTE BY P.L.B. IN 1952 IS ADEQUATE.

STATION RECOVERY (1963)

RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1963 (RRG) THE STATION AND REFERENCE MARK NO. 2 AND 3 WERE RECOVERED AND FOUND TO BE IN GOOD CONDITION. THE DESCRIPTION BY P.L.B. OF 1952 IS ADEQUATE. THE STEEL TOWER SUPPORTING THE BEACON LIGHT OVER REFERENCE MARK NO. 3 HAS BEEN TORN DOWN BUT THE CONCRETE BASE REMAINS AND THE MARK HAS NOT BEEN DISTURBED.

STATION RECOVERY (1965)

RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1965 (WPS) STATION RECOVERED IN GOOD CONDITION. PREVIOUS DESCRIPTION ADEQUATE.

STATION RECOVERY (1965)

RECOVERY NOTE BY LA DEPT OF HIGHWAYS 1965 (JB) STATION IS ABOUT 8 MILES SOUTHEAST OF SLIDELL ON WEST EDGE OF OLD FORT PIKE, AT THE SOUTH END OF THE RIGOLETS BRIDGE ON U.S. HIGHWAY 90, 305 FEET OF THE CENTER LINE OF THE SOUTH END OF THE BRIDGE, 147.10 FEET EAST OF THE CENTER LINE OF U.S. HIGHWAY 90, AND IS BETWEEN THE LEVEE ON THE MOAT TO THE FORT AND U.S. HIGHWAY 90.

STATION IS MARKED BY A STANDARD DISK SET IN A CONCRETE POST FLUSH WITH THE SURFACE OF THE GROUND. STATION IS STAMPED PIKE 1931, 1952.

R.M. NO 2 IS 36.15 FEET EAST OF THE CENTER LINE OF U.S. HWY. 90, 10 FEET SOUTH OF DRIVE TO FORT, AND IS 111.53 FEET NORTHWEST OF STATION PIKE. STATION IS STANDARD DISK SET IN CONCRETE POST FLUSH WITH THE SURFACE OF THE GROUND AND IS STAMPED PIKE NO. 2.

R.M. NO. 3 IS SET IN OLD BEACON FOUNDATION IN THE CENTER. STATION IS 67.48 FEET SOUTHWEST OF STATION PIKE. STATION IS STAMPED PIKE NO 3 1952. R.M. NO. 2 TO PIKE 111.53, R.M. NO. 3 TO PIKE 67.48

WEST RIGOLETS LIGHTHOUSE--LIGHTHOUSE IS ABANDONED AND IS PRIVATELY OWNED, BUT STATION IS IN GOOD CONDITION AND CAN BE USED. STATION IS SOUTHWEST OF THE SOUTHWEST END OF THE RIGOLETS BRIDGE AND CAN BE REACHED BY TRAVELING SHELL ROAD FOR ABOUT 0.6 MILES. STATION IS ON TOP OF HOUSE.

STATION RECOVERY (1966)

RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1966 (LMC) STATION MARK, REFERENCE MARKS 2 AND 3 WERE RECOVERED AND FOUND IN GOOD CONDITION. REFERENCE MARK 1 WAS FOUND TO HAVE BEEN DESTROYED. THE DISTANCE AND DIRECTIONS TO REFERENCE MARKS 2 AND 3 CHECKED. REFERENCE MARK 4 AND AN AZIMUTH MARK WERE ESTABLISHED AT THIS TIME.

THE FOLLOWING IS A COMPLETE NEW DESCRIPTION-- STATION IS ABOUT 11 MILES SOUTHEAST OF SLIDELL, AT THE WEST EDGE OF OLD FORT PIKE AND ABOUT 100 YARDS SOUTH OF THE SOUTH END OF THE RIGOLETS BRIDGE AND ON STATE PROPERTY.

TO REACH THE STATION FROM THE JUNCTIONS OF U.S. HIGHWAYS 90 AND 11, GO NORTHEAST ON U.S. HIGHWAY 90 FOR 3.9 MILES TO THE CENTER OF THE LONG-SIMPSON BRIDGE. CONTINUE NORTHEAST ON U.S. HIGHWAY 90 FOR 8.75 MILES TO THE AZIMUTH MARK ON THE RIGHT. CONTINUE NORTH ON U.S. HIGHWAY 90 FOR 0.25 MILE TO OLD FORT PIKE AND THE STATION ON THE RIGHT.

STATION MARKS ARE STANDARD DISKS STAMPED PIKE 1931 1952. THE SURFACE DISK IS SET IN THE TOP OF A 12 INCH SQUARE CONCRETE MONUMENT FLUSH WITH THE GROUND SURFACE. IT IS 148 FEET EAST OF THE CENTER OF U.S. HIGHWAY 90, 116 FEET SOUTH OF THE EAST CORNER OF A WHITE HOUSE, 55 FEET SOUTHEAST OF A THREE TRUNKED TREE AND 31 FEET WEST OF THE WEST EDGE OF A BRICK WALL. THE UNDERGROUND DISK WAS NOT INSPECTED AT THIS TIME.

REFERENCE MARK NO. 2, A STANDARD DISK STAMPED PIKE NO 2 1931, IS SET IN THE TOP OF A 12 INCH SQUARE CONCRETE MONUMENT FLUSH WITH THE GROUND SURFACE. IT IS 70 FEET WEST-SOUTHWEST OF THE THREE TRUNKED TREE, 37 FEET SOUTHEAST OF THE CENTER OF U.S. HIGHWAY 90 AND 24 FEET NORTH-NORTHWEST OF A 24 INCH LIVE OAK TREE.

REFERENCE MARK NO. 3, A STANDARD DISK STAMPED PIKE NO 3 1952, IS CEMENTED IN A DRILL HOLE IN A 12 FOOT SQUARE CONCRETE SLAB AND FLUSH WITH THE SURFACE. IT IS 112 FEET EAST-SOUTHEAST OF THE CENTER OF U.S. HIGHWAY 90, 84 FEET SOUTH- SOUTHWEST OF THE THREE TRUNKED TREE AND 43 FEET NORTH-NORTHWEST OF POWER POLE NUMBER 580.

REFERENCE MARK NO. 4, A STANDARD DISK STAMPED PIKE NO 4 1931 1952 1966, IS SET IN THE TOP OF A 12 INCH CYLINDRICAL CONCRETE MONUMENT FLUSH WITH THE GROUND SURFACE. IT IS 60 FEET NORTH-NORTHEAST OF THE THREE TRUNKED TREE, 38 FEET WEST OF THE EAST CORNER OF THE WHITE HOUSE AND 1 FOOT EAST OF A POWER POLE.

BENCH MARK C 193, A U.S. COAST AND GEODETIC SURVEY BENCH MARK DISK STAMPED C 193 1963, IS CRIMPED TO THE TOP OF A 5/8 INCH COPPER WELD GROUND ROD. IT IS ENCASED IN A 4 INCH TERRACOTTA TILE WHICH PROJECTS 2 INCHES. IT IS 67 FEET SOUTHEAST OF THE CENTER OF U. S. HIGHWAY 90, 38 FEET NORTHEAST OF THE 24 INCH LIVE OAK TREE AND 35 FEET WEST OF THE THREE TRUNKED TREE.

AZIMUTH MARK, A STANDARD DISK STAMPED PIKE 1931 1952 1966, IS SET IN THE TOP OF A 12 INCH CYLINDRICAL CONCRETE MONUMENT FLUSH WITH THE GROUND SURFACE. IT IS 178 FEET EAST OF THE CENTER OF U.S. HIGHWAY 90, 48 FEET WEST OF A POWER POLE, 41.5 FEET NORTHEAST OF POWER POLE NUMBER 575 A, 11 FEET NORTH OF THE CENTER OF A SHELL DRIVE AND 1.5 FEET EAST OF A METAL WITNESS POST. THE PROPERTY OWNER AT THE AZIMUTH MARK IS MR. W.J. VINOT. THE MARK IS 6.8 FEET EAST OF THE GOVERNMENT RIGHT-OF-WAY AND 4.5 FEET NORTH OF THE SOUTH SIDE OF THE PROPERTY LINE.

STATION RECOVERY (1969)

RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1969 23.2 MI E FROM NEW ORLEANS. ABOUT 23.2 MILES EAST ALONG U. S. HIGHWAY 90 FROM THE I 10 OVERPASS OVER U. S. HIGHWAY 90 AT NEW ORLEANS, ABOUT 105 YARDS SOUTH OF THE SOUTH CORNER OF THE HIGHWAY BRIDGE OVER THE RIGOLETS, AT OLD FORT IKE, INSIDE OF A SMALL PARK, 148 1/2 FEET SOUTHEAST OF THE CENTER LINE OF THE HIGHWAY, 82.4 FEET SOUTHEAST OF BENCH MARK C 193 DESCRIBED, 31 FEET SOUTHWEST OF THE SOUTHWEST CORNER OF THE LANDING AT THE TOP OF THE STEPS WHICH LEADS TO THE OLD FORT, 33 FEET WEST OF THE SOUTHWEST ONE OF THREE CEDAR TREES, ABOUT LEVEL WITH THE HIGHWAY AND SET IN THE TOP OF A CONCRETE POST PROJECTING 1 INCH ABOVE THE LEVEL OF THE GROUND.

STATION RECOVERY (1970)

RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1970 RECOVERED IN GOOD CONDITION.

STATION RECOVERY (1971)

RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1971 (RDO) STATION WAS RECOVERED IN GOOD CONDITION AS DESCRIBED BY LMC IN 1966.

STATION RECOVERY (1972)

RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1972 (JCA) MEASUREMENT WERE MADE WITH A 30 METER AND 300 FOOT TAPE, HOLDING 5 AND 10 KGS. TENSION.

THE STATION MARK, REFERENCE MARKS 2, 3, 4, AZIMUTH MARK AND BENCH MARK C 193 WERE RECOVERED AND FOUND IN GOOD CONDITION AS DESCRIBED IN THE 1966 DESCRIPTION.

THE HORIZONTAL DIRECTIONS AND THE DISTANCE TO THE MARKS WERE FOUND COMPLETELY ADEQUATELY. TO REACH THE STATION IS COMPLETELY ADEQUATELY FROM THE 1966 DESCRIPTION. HEIGHT OF LIGHT ABOVE STATION MARK 99.7 FEET. AIRLINE DISTANCE AND DIRECTION FROM NEAREST TOWN 11 MILES SOUTHEAST OF SLIDELL.

STATION RECOVERY (1977)

RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1977 RECOVERED IN GOOD CONDITION.

STATION RECOVERY (1979)

RECOVERY NOTE BY PETTY GEOPHYSICAL CO 1979 (EAF) PIKE 1931 1952 PREVIOUS DESCRIPTION BY LM CHASE ADEQUATE ALL REFERENCE MARKS RECOVERED IN GOOD CONDITION. AZIMUTH MARK DESTROYED WHEN PROPERTY OWNER WJ. VINOT CONSTRUCTED BUILDING ON MARKER. STATION RECOVERY (1984)

RECOVERY NOTE BY JEFFERSON PARISH LOUISIANA 1984 RECOVERED IN GOOD CONDITION.

STATION RECOVERY (1985)

RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1985 RECOVERED IN GOOD CONDITION.

STATION RECOVERY (1986)

RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1986 RECOVERED IN GOOD CONDITION.

STATION RECOVERY (1990)

RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1990 37.4 KM (23.2 MI) EASTERLY ALONG U.S. HIGHWAY 90 (CHEF MENTEUR HIGHWAY) FROM THE JUNCTION OF INTERSTATE HIGHWAY 10 IN NEW ORLEANS, AT FORT PIKE STATE MONUMENT, 96.0 M (315.0 FT) SOUTH OF THE SOUTH CORNER OF THE HIGHWAY BRIDGE SPANNING THE RIGOLETS, 45.3 M (148.6 FT) SOUTHEAST OF AND LEVEL WITH THE HIGHWAY CENTERLINE, 25.1 M (82.3 FT) SOUTHEAST OF BENCH MARK C 193, 10.0 M (32.8 FT) WEST OF THE MOST SOUTHWESTERLY OF 3 CEDAR TREES, 9.4 M (30.8 FT) SOUTHWEST OF THE SOUTHWEST CORNER OF THE LANDING AT THE TOP OF THE STEPS WHICH LEADS TO THE OLD FORT, AND THE MONUMENT IS FLUSH WITH THE GROUND SURFACE. NOTE--THE 9 IN THE STAMPED DATE (1952) IS BARELY LEGIBLE AND THERE HAS BEEN A 1 STAMPED OVER TOP OF THE 2.

STATION RECOVERY (1993)

RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1993 37.4 KM (23.25 MI) EASTERLY ALONG U.S. HIGHWAY 90 (CHEF MENTEUR HIGHWAY) FROM THE JUNCTION OF INTERSTATE HIGHWAY 10 IN NEW ORLEANS, 45.3 M (148.6 FT) SOUTHEAST OF AND LEVEL WITH THE CENTERLINE OF THE HIGHWAY, 34.0 M (111.5 FT) SOUTHEAST OF REFERENCE MARK 2, 25.1 M (82.3 FT) SOUTHEAST OF BENCH MARK C 193, 20.5 M (67.3 FT) EAST OF REFERENCE MARK 3, 10.0 M (32.8 FT) WEST OF THE MOST WESTERLY OF 3 CEDAR TREES, 9.4 M (30.8 FT) SOUTHWEST OF THE SOUTHWEST CORNER OF THE LANDING OF A SET OF STEPS LEADING TO FORT PECK, AND THE MONUMENT IS FLUSH WITH THE GROUND SURFACE.

STATION RECOVERY (1994)

RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1994 (GAS) 37.0 KM (23.00 MI) EASTERLY ALONG U.S. HIGHWAY 90 (CHEF MENTEUR HIGHWAY) FROM THE JUNCTION OF INTERSTATE HIGHWAY 10 IN NEW ORLEANS, 45.3 M (148.6 FT) SOUTHEAST OF AND LEVEL WITH THE HIGHWAY CENTERLINE, 34.0 M (111.5 FT) SOUTHEAST OF REFERENCE MARK 2, 25.1 M (82.3 FT) SOUTHEAST OF BENCH MARK C 193, 20.5 M (67.3 FT) EAST OF REFERENCE MARK 3, 10.0 M (32.8 FT) WEST OF THE MOST WESTERLY OF 3 CEDAR TREES, 9.4 M M(30.8 FT) SOUTHWEST OF THE SOUTHWEST CORNER OF THE LANDING FOR A SET OF STEPS LEADING TO FORT PIKE, AND THE MONUMENT IS FLUSH WITH THE GROUND SURFACE.

STATION RECOVERY (2004)

RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 2004 (KLF) FROM EXIT 246, I 10 AND I 510 GO S ON I 510 FOR 2 MI. TO EXIT 2C, US HWY 90 AND GO GO TO THE TRAFFIC LIGHT. TURN LEFT, EASTERLY ON US 90, CHEF MENTEUR HWY, FOR 6.25 MI TO THE JUNCTION WITH US 11. CONTINUE FOR 13 MI. TO THE ENTRANCE WIT FORT PIKE JUST WEST OT THE RIGOLETS BRIDGE. TURN RIGHT EASTERLY AND PROCEED TO THE PARKING LOT AND END OF TRUCK TRAVEL. PROCEED THRU THE GATE AND GO WESTERLY AND THEN NE ALONG A ANGULARED SPLIT RAIL FENCE TO THE LAST ANGLE BEFORE THE FORT ENTRANCE AND THE MARK ON THE E SIDE OF THE FENCE AT THE LAST ANGLE OF THE FENCE. THE MARK IS 2 FT SE OF THE INSIDE ANGLE OF THE FENCE, 42.6 FTSW FROM THE FORT PIKE ENTRANCE SIGN, 84 FT NE OF POWER POLE 548795 WITH A TRANSFORMER, 52.5 FT SE TRIPLE TRUNKED TREE, 33FT W OF THE S ONE OF 3 CEDAR TREES.

STATION RECOVERY (2006)

RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 2006 (DEB) RECOVERED IN GOOD CONDITION. ADD--1.1 M SOUTHWEST OF WITNESS POST, 0.8 M NORTHEAST OF WITNESS POST, AND 1.4 M NORTHEAST OF A GPS ANCHOR.

STATION RECOVERY (2006)

RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 2006 (RLT) RECOVERED AS DESCRIBED.

STATION RECOVERY (2008)

RECOVERY NOTE BY JOHN CHANCE LAND SURVEYS INC 2008 RECOVERED IN GOOD CONDITION.

STATION RECOVERY (2010)

RECOVERY NOTE BY US ARMY CORPS OF ENGINEERS 2010(JTH) MARK RECOVERED AS DESCRIBED AND IN GOOD CONDITION.

STATION RECOVERY (2011)

RECOVERY NOTE BY JOHN CHANCE LAND SURVEYS INC 2011 RECOVERED IN GOOD CONDITION.

STATION NAME: “MARY_289 LSU C4G CORS ARP” PID: DO8512 CORS IDENTIFIER: “MARY” JCLS IDENTIFIER: “MARY”

Monument Description: This station is a National Geodetic Survey GPS CORS site. The latest information, including the Positions and Velocities are available in the coordinate and log files accessible by anonymous FTP or the worldwide web at: ftp://geodesy.noaa.gov/cors/ http://www.ngs.noaa.gov/CORS/

Published NAD 83 (2011) (EPOCH 2010.0) Lat. N 30 01 22.70956 Long. W 89 54 46.80194 Ellipsoid Height = -22.897

Adjusted NAD 83 (2011) (Epoch 2010.0) Lat. N 30 01 22.70956 Long. W 89 54 46.80194 Ellipsoid Height = -22.901

Adjusted NAVD88 (Meters) Elevation = 3.272

***IGS 08*** MARY_289 LSU C4G (MARY), LOUISIANA

Retrieved from NGS DataBase on 02/14/14 at 14:37:14. ______| | | Antenna Reference Point(ARP): MARY_289 LSU C4G CORS ARP | | ------| | PID = DO8512 | | | | | | IGS08 POSITION (EPOCH 2005.0) | | Computed in Jul 2013 using 24 days of data. | | X = 8391.632 m latitude = 30 01 22.72920 N | | Y = -5526955.084 m longitude = 089 54 46.82630 W | | Z = 3172567.468 m ellipsoid height = -24.286 m | | | | IGS08 VELOCITY | | Predicted with HTDP_3.2.3 Jul 2013. | | VX = -0.0124 m/yr northward = -0.0008 m/yr | | VY = -0.0004 m/yr eastward = -0.0124 m/yr | | VZ = -0.0007 m/yr upward = -0.0000 m/yr | | | | | | NAD_83 (2011) POSITION (EPOCH 2010.0) | | Transformed from IGS08 (epoch 2005.0) position in Jul 2013. | | X = 8392.287 m latitude = 30 01 22.70956 N | | Y = -5526956.588 m longitude = 089 54 46.80194 W | | Z = 3172567.639 m ellipsoid height = -22.897 m | | | | NAD_83 (2011) VELOCITY | | Transformed from IGS08 velocity in Jul 2013. | | VX = 0.0014 m/yr northward = -0.0002 m/yr | | VY = 0.0006 m/yr eastward = 0.0014 m/yr | | VZ = -0.0006 m/yr upward = -0.0008 m/yr | |______| | | | L1 Phase Center of the current GPS antenna: MARY_289 LSU C4G CORS L1 PC C | | ------| | The Zephyr GNSS Geodetic II - RoHS compliant antenna | | (Antenna Code = TRM57971.00 NONE) was installed on 22Jan2014. | | The L2 phase center is 0.009 m below the L1 phase center. | | PID = DP1674 | | | | | | IGS08 POSITION (EPOCH 2005.0) | | Computed in Jul 2013 using 24 days of data. | | X = 8391.632 m latitude = 30 01 22.72923 N | | Y = -5526955.141 m longitude = 089 54 46.82631 W | | Z = 3172567.502 m ellipsoid height = -24.219 m | | | | The IGS08 VELOCITY of the L1 PC is the same as that for the ARP. | | | | | | NAD_83 (2011) POSITION (EPOCH 2010.0) | | Transformed from IGS08 (epoch 2005.0) position in Jul 2013. | | X = 8392.287 m latitude = 30 01 22.70960 N | | Y = -5526956.645 m longitude = 089 54 46.80195 W | | Z = 3172567.674 m ellipsoid height = -22.830 m | | | | The NAD_83 (2011) VELOCITY of the L1 PC is the same as that for the ARP. | |______|

*********************************************************************** CORS - This is a GPS Continuously Operating Reference Station. DESIGNATION - MARY_289 LSU C4G CORS ARP = “MARY” CORS_ID - MARY PID - DO8512 STATE/COUNTY- LA/ORLEANS COUNTRY - US USGS QUAD - LITTLE WOODS (1994)

*CURRENT SURVEY CONTROL ______NAD 83(2011) POSITION- 30 01 22.70956(N) 089 54 46.80194(W) ADJUSTED NAD 83(2011) ELLIP HT- -22.897 (meters) (07/??/13) ADJUSTED NAD 83(2011) EPOCH - 2010.00 NAVD 88 ORTHO HEIGHT - **(meters) **(feet) NOT PUB **This station is located in a suspected subsidence area (see below). ______GEOID HEIGHT - -26.157 (meters) GEOID12B NAD 83(2011) X - 8,392.287 (meters) COMP NAD 83(2011) Y - -5,526,956.588 (meters) COMP NAD 83(2011) Z - 3,172,567.639 (meters) COMP

Formal positional accuracy estimates are not available for this CORS because its coordinates were determined in part using modeled velocities. Approximate one-sigma accuracies for latitude, longitude, and ellipsoid height can be obtained from the short-term time series. Additional information regarding modeled velocities is available on the CORS Coordinates and Multi-Year CORS Solution FAQ web pages. The coordinates were established by GPS observations and adjusted by the National Geodetic Survey in July 2013. NAD 83(2011) refers to NAD 83 coordinates where the reference frame has been affixed to the stable North American Tectonic Plate. The coordinates are valid at the epoch date displayed above which is a decimal equivalence of Year/Month/Day.

** This station is in an area of known vertical motion. If an orthometric height was ever established but is not available in the current survey control section, the orthometric height is considered suspect. Suspect heights are available in the superseded section only if requested.

Significant digits in the geoid height do not necessarily reflect accuracy. GEOID12B height accuracy estimate available here. The ellipsoidal height was determined by GPS observations and is referenced to NAD 83. The XYZ, and position/ellipsoidal ht. are equivalent.

The PID for the CORS L1 Phase Center is DP1674.

The following values were computed from the NAD 83(2011) position.

North East Units Scale Factor Converg. SPC LA S - 169,662.105 1,136,997.378 MT 0.99992582 +0 42 36.7 SPC LA S - 556,633.09 3,730,298.90 sFT 0.99992582 +0 42 36.7 UTM 16 - 3,324,906.540 219,051.708 MT 1.00057395 -1 27 30.5

- Elev Factor x Scale Factor = Combined Factor SPC LA S - 1.00000360 x 0.99992582 = 0.99992942 UTM 16 - 1.00000360 x 1.00057395 = 1.00057755

U.S. NATIONAL GRID SPATIAL ADDRESS: 16RBU1905124906(NAD 83)

SUPERSEDED SURVEY CONTROL

No superseded survey control is available for this station. MARKER: STATION IS THE ANTENNA REFERENCE POINT OF THE GPS ANTENNA

STATION NAME: “INFINITY CENTER CORS ARP” PID: DN8737 CORS IDENTIFIER: “MSIN” JCLS IDENTIFIER: “MSIN”

Published NAD 83 (2011) (EPOCH 2010.0) Lat. N 30 18 42.20573 Long. W 89 36 15.50727 Ellipsoid Height = -17.309

Adjusted NAD 83 (2011) (Epoch 2010.0) Lat. N 30 18 42.20573 Long. W 89 36 15.50727 Ellipsoid Height = -17.309

Adjusted NAVD88 (Meters) Elevation = 9.739

***IGS 08*** INFINITY CENTER (MSIN), MISSISSIPPI

Created on 07Jun2012 at 16:30:26. ______| | | Antenna Reference Point(ARP): INFINITY CENTER CORS ARP | | ------| | PID = DN8737 | | | | | | IGS08 POSITION (EPOCH 2005.0) | | Computed in June 2012 using 52 days of data. | | X = 38057.942 m latitude = 30 18 42.22569 N | | Y = -5510749.366 m longitude = 089 36 15.53145 W | | Z = 3200244.199 m ellipsoid height = -18.696 m | | | | IGS08 VELOCITY | | Predicted with HTDP_3.1.2 June 2012. | | VX = -0.0124 m/yr northward = -0.0008 m/yr | | VY = -0.0005 m/yr eastward = -0.0124 m/yr | | VZ = -0.0007 m/yr upward = 0.0000 m/yr | | | | | | NAD_83 (2011) POSITION (EPOCH 2010.0) | | Transformed from IGS08 (epoch 2005.0) position in June 2012. | | X = 38058.598 m latitude = 30 18 42.20574 N | | Y = -5510750.869 m longitude = 089 36 15.50728 W | | Z = 3200244.368 m ellipsoid height = -17.310 m | | | | NAD_83 (2011) VELOCITY | | Transformed from IGS08 velocity in June 2012. | | VX = 0.0015 m/yr northward = -0.0004 m/yr | | VY = 0.0005 m/yr eastward = 0.0015 m/yr | | VZ = -0.0007 m/yr upward = -0.0008 m/yr | |______| | | | L1 Phase Center of the current GPS antenna: INFINITY CENTER CORS L1 PC C | | ------| | The Zephyr GNSS Geodetic II - RoHS compliant antenna | | (Antenna Code = TRM57971.00 NONE) was installed on 02Apr2012. | | The L2 phase center is 0.009 m below the L1 phase center. | | PID = DN8738 | | | | | | IGS08 POSITION (EPOCH 2005.0) | | Computed in June 2012 using 52 days of data. | | X = 38057.942 m latitude = 30 18 42.22572 N | | Y = -5510749.424 m longitude = 089 36 15.53147 W | | Z = 3200244.233 m ellipsoid height = -18.629 m | | | | The IGS08 VELOCITY of the L1 PC is the same as that for the ARP. | | | | | | NAD_83 (2011) POSITION (EPOCH 2010.0) | | Transformed from IGS08 (epoch 2005.0) position in June 2012. | | X = 38058.598 m latitude = 30 18 42.20578 N | | Y = -5510750.926 m longitude = 089 36 15.50729 W | | Z = 3200244.403 m ellipsoid height = -17.243 m | | | | The NAD_83 (2011) VELOCITY of the L1 PC is the same as that for the ARP. | |______|

*********************************************************************** CORS - This is a GPS Continuously Operating Reference Station. DESIGNATION - INFINITY CENTER CORS ARP = “MSIN” CORS_ID - MSIN PID - DN8737 STATE/COUNTY- MS/HANCOCK COUNTRY - US USGS QUAD - LOGTOWN (1993)

*CURRENT SURVEY CONTROL ______NAD 83(2011) POSITION- 30 18 42.20574(N) 089 36 15.50728(W) ADJUSTED NAD 83(2011) ELLIP HT- -17.310 (meters) (06/??/12) ADJUSTED NAD 83(2011) EPOCH - 2010.00 NAVD 88 ORTHO HEIGHT - **(meters) **(feet) NOT PUB **This station is located in a suspected subsidence area (see below). ______GEOID HEIGHT - -26.965 (meters) GEOID12B NAD 83(2011) X - 38,058.598 (meters) COMP NAD 83(2011) Y - -5,510,750.869 (meters) COMP NAD 83(2011) Z - 3,200,244.368 (meters) COMP

Formal positional accuracy estimates are not available for this CORS because its coordinates were determined in part using modeled velocities. Approximate one-sigma accuracies for latitude, longitude, and ellipsoid height can be obtained from the short-term time series. Additional information regarding modeled velocities is available on the CORS Coordinates and Multi-Year CORS Solution FAQ web pages. The coordinates were established by GPS observations and adjusted by the National Geodetic Survey in June 2012. NAD 83(2011) refers to NAD 83 coordinates where the reference frame has been affixed to the stable North American Tectonic Plate. The coordinates are valid at the epoch date displayed above which is a decimal equivalence of Year/Month/Day.

The PID for the CORS L1 Phase Center is DN8738.

The following values were computed from the NAD 83(2011) position.

North East Units Scale Factor Converg. SPC MS E - 90,227.595 225,847.754 MT 1.00001781 -0 23 20.9 SPC MS E - 296,021.70 740,968.84 sFT 1.00001781 -0 23 20.9 UTM 16 - 3,356,201.500 249,566.683 MT 1.00037380 -1 18 54.3

- Elev Factor x Scale Factor = Combined Factor SPC MS E - 1.00000272 x 1.00001781 = 1.00002053 UTM 16 - 1.00000272 x 1.00037380 = 1.00037652

U.S. NATIONAL GRID SPATIAL ADDRESS: 16RBU4956656201(NAD 83)

SUPERSEDED SURVEY CONTROL

NAD 83(CORS)- 30 18 42.20604(N) 089 36 15.50809(W) AD(2002.00) c ELLIP H (06/??/12) -17.300 (m) GP(2002.00) c c

MARKER: STATION IS THE ANTENNA REFERENCE POINT OF THE GPS ANTENNA

STATION NAME: “SJHS” PID: GulfNet CORS IDENTIFIER: “SJHS” JCLS IDENTIFIER: “SJHS”

Monument Description: This station is a LSU-C4G RTN GPS CORS site. The latest information, including the position and health status are available on the worldwide web at: http://c4gnet.lsu.edu/Map/SensorMap.aspx

Published NAD 83 (2011) (EPOCH 2010.0) Lat. N 30 16 49.45656 Long. W 89 46 47.85818 Ellipsoid Height = -12.934

Adjusted NAD 83 (2011) (EPOCH 2010.0) Lat. N 30 16 49.45698 Long. W 89 46 47.85767 Ellipsoid Height = -12.897

Adjusted NAVD88 (Meters) Elevation = 13.849

3.0 FIELD NOTES