20241115
12570600
1.0
FALSE
T2024_GSA_AsBuilt_VC_Locations
002
0.002
1801385.910027
1938100.939090
50654.549868
78911.349981
1
Projected
GCS_North_American_1983
Linear Unit: Foot_US (0.304801)
NAD83 / Alabama - West (ft)
<ProjectedCoordinateSystem xsi:type='typens:ProjectedCoordinateSystem' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns:xs='http://www.w3.org/2001/XMLSchema' xmlns:typens='http://www.esri.com/schemas/ArcGIS/10.8'><WKT>PROJCS["NAD83 / Alabama - West (ft)",GEOGCS["GCS_North_American_1983",DATUM["D_NORTH_AMERICAN_1983",SPHEROID["GRS 1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["false_easting",1968500.0],PARAMETER["false_northing",0.0],PARAMETER["central_meridian",-87.5],PARAMETER["scale_factor",0.99993333],PARAMETER["latitude_of_origin",30.0],UNIT["Foot_US",0.3048006096012192]]</WKT><XOrigin>-16478800</XOrigin><YOrigin>-43705000</YOrigin><XYScale>3048.0060960121918</XYScale><ZOrigin>-100000</ZOrigin><ZScale>10000</ZScale><MOrigin>-100000</MOrigin><MScale>10000</MScale><XYTolerance>0.0032808333333333331</XYTolerance><ZTolerance>0.001</ZTolerance><MTolerance>0.001</MTolerance><HighPrecision>true</HighPrecision></ProjectedCoordinateSystem>
20250710
13233000
20250710
13233000
150000000
5000
ISO19139
Version 6.2 (Build 9200) ; Esri ArcGIS 10.8.0.12790
Alabama GSA As-Built Vibracore Locations
2024-11-15T00:00:00
external
5185e07be46277222e6268f14e0b5dc5
Patrick Bryce
APTIM
Project Manager
True
Patrick Bryce
1
-88.029095
-87.596172
30.216951
30.138223
Offshore Alabama in federal and state waters between Dauphin Island and Perdido Pass.
Aptim Environmental & Infrastructure LLC (APTIM) was contracted by the Geological Survey of Alabama (GSA) to conduct a geophysical and geotechnical investigation for the identification and delineation of sand resources between Dauphin Island and Perdido Pass.These are the as run core sites for for APTIM's geophysical and geologic reconnaissance sand search for the Geological Survey of Alabama. These data were collected between September 14 and October 1, 2024. These data are presented in Alabama State Plane Coordinate System, West Zone, North American Datum of 1983 (NAD 83) projection.
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>The Geological Survey of Alabama contracted the APTIM Team to conduct a reconnaissance geophysical and geological survey. This project is funded by the Resources and Ecosystem Sustainability, Tourist Opportunities, and Revived Economics (RESTORE) of the Gulf Coast States Act of 2012 under the “State Expenditure Plan #5: Characterization and Delineation of Significant Sand Resource Areas Essential for Beach Restoration”. Alabama offshore sand reserves are essential to the maintenance of amenity beaches, to the intertidal and beach ecosystem functions, and to the services beaches provide. The purpose of this project is to locate and identify beach compatible sands which can aid in future beach restoration projects for the State of Alabama by initiating a bathymetric and sand sediment sampling and analysis program. This project collected 123 nm (228 km) of high-resolution geophysical data aboard Florida State University’s (FSU) R/V Apalachee. </SPAN><SPAN>These data were collected between January 13 and January 19, 2024. To properly address GSA’s needs as well as state and local agencies, APTIM first conducted a detailed desktop study in the area. The desktop study is part of Phase 1 and is intended to identify historical datasets and reports within the area of interest that help to clarify the geological framework and potential resources within the area. Once the results of the desktop study were reviewed and study areas and plans established, APTIM proceeded to Phases 1 and 2, which included geophysical and geological data collection. Geotechnical data was collected between September 14 and October 1, 2024.</SPAN></P></DIV></DIV></DIV>
APTIM Environmental & Infrastructure, LLC
As-Built
Vibracore
GSA
Alabama
GOM
Geology
Sand Search
APTIM
Reconnaissance
<DIV STYLE="text-align:Left;font-size:12pt"><DIV><DIV><P><SPAN>The data represents the results of data planning for a specific activity and indicates the general existing conditions at the time of planning. As such, it is only valid for its intended use, content, time, and accuracy specifications. The user is responsible for the results of an application of the data other than its intended purpose.</SPAN></P></DIV></DIV></DIV>
external
5185e07be46277222e6268f14e0b5dc5
Patrick Bryce
APTIM
Project Manager
True
Patrick Bryce
The data represents the results of data planning for a specific activity and indicates the general existing conditions at the time of planning. As such, it is only valid for its intended use, content, time, and accuracy specifications. The user is responsible for the results of an application of the data other than its intended purpose.
File Geodatabase Feature Class
0.002
dataset
0
Simple
FALSE
0
TRUE
FALSE
T2024_GSA_AsBuilt_VC_Locations
Feature Class
0
A feature class is a homogeneous collection of common features, each having the same spatial representation (such as points, lines, or polygons) and a common set of attributes (for example, a line feature class for representing road centerlines).
ESRI
OBJECTID
FID
OID
4
0
0
Internal feature number.
Esri
Sequential unique whole numbers that are automatically generated.
Shape
Shape
Geometry
0
0
0
Feature geometry.
Esri
Coordinates defining the features.
x
x
Double
8
0
0
Easting of data point
APTIM
y
y
Double
8
0
0
Northing of data point
APTIM
Core_ID
Core_ID
String
254
0
0
Name of each point
APTIM
20250710
APTIM utilized the company owned and operated VC-700 vibracore system, configured to collect undisturbed vibracores up to 20 ft (6 m) in length. The VC-700 is a single, electric vibracoring system operational to depths of 3280 ft (1000 m). This electric vibracore system allows for the successful collection of vibracores in relatively deep-water depths. The self-contained, free-standing electrically operated vibracore unit contains a VC-700 vibrator head (4.4 kilowatt) configured to 220 VAC 3-phase power, allowing for the user to operate the vibracore at fluctuating vibration frequencies to penetrate through otherwise unyielding strata. A 210 m long 4-core Hydrofirm sea cable provided power to the drive unit of the vibracore from the surface control system, located on the vessel. The frame of the vibracore system has legs which can easily be deployed and retracted to allow the system to be laid down on a vessel’s deck. This allows for easy access to insert new liners and also remove core samples from the system. The vessel was live boating at all geologic sample locations to further the vessel’s stability for vibracore operations. The GSA has contracted APTIM to perform a sand search along the Alabama coast between Dauphin Island and Perdido Pass. Proposed vibracores were generated based on the data available at the time of planning. Vibracores were proposed based on the historic data identified and made available during the desktop study investigation as well as interpreatations from the seismic data collected during the geophysical survey. Vibracore locations were picked by APTIM based on the seismic singals identified in the collected data that are indicative of sand. Geotechnical data was collected between September 14 and October 1, 2024.
Navigation and horizontal positioning was provided by the Trimble SPS 461 DGPS (system accuracy of one to four feet) via Hypack 2024.
These data are not projected to any geoid/vertical datum and should not be used for any specific vertical/elevation inference.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external
5185e07be46277222e6268f14e0b5dc5
Patrick Bryce
APTIM
Project Manager
True
Patrick Bryce
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>Metadata should be distributed along with these data.</SPAN></P></DIV></DIV></DIV>
The data represents the results of data collection/processing for a specific activity and indicates the general existing conditions at the time of collection. As such, it is only valid for its intended use, content, time, and accuracy specifications. The user is responsible for the results of an application of the data other than its intended purpose.