View of Plaquemines Parish at Empire and River

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View of Plaquemines Parish at Empire and River
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V 195 Reset
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Survey of Route 23
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GPS Baselines - Louisiana Hurricane Evacuation
Route 23 Survey
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Fort Jackson
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VTDP Modeled Estimated Subsidence Rates(cm/yr)
-0.8
-0.6
-0.7
-1.4
-1.4
-1.3
-1.4
Units centimeters
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Estimated Amount of Subsidence Since 1984
Leveling (Based on VTDP Results)
(-14.8)
Units centimeters
(-10.6)
(-13.1)
(-26.4)
(-26.0)
(-24.1)
(-26.9)
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Validation of VTDT Rates
Louisiana Hurricane Evacuation Route 23 Survey
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Estimated Subsidence from Model minus Measured
Subsidence from GPS Results
Units centimeters
0.1
-0.3
0.2
4.8
7.3
0.7
-0.6
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Estimated Subsidence from VTDP minus Measured
Subsidence from GPS Results
GPS Orthometric Heights (trend removed) minus
VTDP Results
0.1
(-14.8)
Units centimeters
(Estimated Amount of Subsidence Since 1984
Leveling)
-0.3
(-10.6)
0.2
(-13.1)
4.8
(-26.4)
7.3
(-26.0)
0.7
(-24.1)
-0.6
(-26.9)
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HEIGHT COMPARISONS1971 and 1984 Leveling2003
GPS-Derived (Geoid 99S), 2003 Predicted Heights
(VTDP) and Published NAVD 88
D 194
R 194
A 152
C 195
EMPIRE AZ MK 2
MILAN 2
C 279
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Levee Observations - Fort Jackson Area
Levee Control Point
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Levee Observations - Fort Jackson Area
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Levee Observations
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RTK Profiling of Highway
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Survey of Route 23
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Evacuation Routes Surveyed to Date
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Remote Sensing
LIDAR merged with Color IR Photography
LIDAR DSM
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