Digital data for construction material sources reported by the Arizona Department of Transportation in 1977 for Maricopa County, Arizona

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Originator: Hirschberg, Douglas M. (Digital Compiler)
Originator: Pitts, G. Stephen (Digital Compiler)
Originator: Melcher, Henry L.(Digital Compiler)
Originator: Bliss, James D. (Digital Editor)
Publication_Date: 20010420
Digital data for construction material sources reported by the Arizona Department of Transportation in 1977 for Maricopa County, Arizona
Edition: Version 1.0, April 20, 2001
Geospatial_Data_Presentation_Form: map
Series_Name: U.S. Geological Survey Open-File Report
Issue_Identification: 01-122
Publication_Place: Tucson, AZ
Publisher: U.S. Geological Survey
The data set marpits1 is an ArcInfo coverage of point features representing pit locations and attribution data captured from an atlas of map sheets and pit data sheets titled "A Materials Inventory of Maricopa County [Arizona]" by the Arizona Highway Department (AHD), now named the Arizona Department of Transportation (ADOT), hereafter referred to as the 'Source'.
Pit locations were represented by point symbols in the Source map sheets. Points were digitized from the Source map sheets. Selected attribute data were collected from the Source pit data and map sheets. In the Source introduction it states:
    "The pit location maps show the location of all
    pits bearing Materials Services serial numbers.
    Other sources are not shown. The plotted locations
    are as close as possible to the true location
    as the scale of the map will allow."
The point attribute data, captured from the Source pit data sheets are
    "designed to show test results (sieve analysis,
    plasticity index, and abrasion) for the usable
    material within each ADOT pit."
U. S. Geological Survey scientists desired to have the data presented in the Source in a digital format to use in GIS and spreadsheet software programs for aggregate models and aggregate assessment.
The digital editor and digital compilers of the GIS data set made certain adjustments to the data to make them complete and usable in a GIS. These adjustments include adding points locations for records in the accompanying Source pit data sheets where no point representation existed on the Source map sheets, adding attribution data to the furthest extent possible for points on the Source map sheets without entries in the accompanying Source pit data sheets, appending a letter to the pit number of repeated (duplicate) pit numbers to make them unique and correspond one-to-one with a record in the Source pit data sheets, and adding a '-999' to represent 'No data' or 'No observation' for blank entries in the pit data sheets. Table 3 in the Open-File Report text describes the actions taken to insure data consistency and uniqueness of the individual points. An accompanying ArcInfo arc coverage called marbase of the generalized Maricopa County boundary, and generalized major roadways and generalized major hydrography of Maricopa County has been included to give a general reference of pit location in proximity to natural and man-made features.
Calendar_Date: 1977
Currentness_Reference: 1974 to 1977
Progress: Complete
Maintenance_and_Update_Frequency: None Planned
West_Bounding_Coordinate: -113.4
East_Bounding_Coordinate: -111.1
North_Bounding_Coordinate: 34.0
South_Bounding_Coordinate: 32.5
Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: geology
Theme_Keyword: non-metallic mineral resources
Theme_Keyword: geospatial datasets
Theme_Keyword_Thesaurus: none
Theme_Keyword: geology
Theme_Keyword: aggregate
Theme_Keyword: industrial materials
Theme_Keyword: materials survey
Theme_Keyword: engineering properties
Theme_Keyword: physical properties
Theme_Keyword_Thesaurus: ISO 19115 Topic Categories
Theme_Keyword: geoscientificInformation
Place_Keyword_Thesaurus: none
Place_Keyword: Maricopa County
Place_Keyword: State of Arizona
Place_Keyword_Thesaurus: Augmented FIPS 10-4 and FIPS 6-4
Place_Keyword: f04013 = Maricopa
Access_Constraints: none
These data are not to be used at scales greater than 1:176,306. Any data sets or hardcopies utilizing these data sets shall clearly indicate their source. If the user has modified the data in any way he or she is obligated to describe the types of modifications he or she has performed. User specifically agrees not to misrepresent these data sets, nor to imply that changes he or she made were approved by the U.S. Geological Survey or the Arizona Department of Transportation (ADOT).
Contact_Person: James D. Bliss
Contact_Organization: U.S. Geological Survey
Contact_Position: Geologist
Address_Type: mailing and physical address
Address: 520 N. Park Ave., Suite 355
City: Tucson
State_or_Province: AZ
Postal_Code: 85719-5035
Country: USA
Contact_Voice_Telephone: (520) 670-5502
Contact_Facsimile_Telephone: (520) 670-5571
The authors wish to thank Michelle Perez for helping in the capture of the attribution data and Richard Ahern, Arizona State Land Department, for reviewing the data presented in the marpits1 data set with the data in the Source pit data sheets.
SunOS, 5.6, sun4u UNIX ARC/INFO version 7.2.1
Attribution data captured from the Source pit data sheets were compared to the Source to check for typographical errors. Hard copy maps were produced with the pit number labeled for each pit location and manually checked.
Pit locations were infrequently found to have legal descriptions in the Source pit data sheets inconsistent with the displayed pit location on the Source map sheets. No attempt was made to update the legal descriptions shown in the Source pit data sheets.
Point features present. Points were digitized at the center of each symbol representing a pit location on the Source map sheet. Where two or more pit number labels pointed to the same symbol a point was added for each of the labels, thus some points will overlap when displayed at the scale at which the data were digitized (1:176,306). In some cases one of the points may have been digitized slightly off-center.
All pit locations depicted on the Source map sheets or with a record in the Source pit data sheets were captured.
Maps prepared using the digitized points overlain on the Source map sheets on a light table and suggest that the locational accuracy for the digitized points is no better than 2 millimeters (1175 feet or 358 meters at scale). Plots of the pit locations over a Public Land Survey sections GIS data set available form the Arizona State Land Department produced maps to display pit locations within PLSS sections. The result showed consistent locational fidelity between pit location and PLSS quarter-section in the digital data as compared to the Source.
Materials Services, Arizona Department of Transportation, Highway Division
Publication_Date: 1977
Title: A Materials Inventory of Maricopa County (Arizona)
Geospatial_Data_Presentation_Form: atlas
Series_Name: Arizona Materials Inventory
Issue_Identification: none
Publication_Place: Phoenix, Arizona
Reproduction Section, Arizona Department of Transportation
Source_Scale_Denominator: 176306
Type_of_Source_Media: paper
Calendar_Date: 1977
Source_Currentness_Reference: 1977, date of publication
Source_Citation_Abbreviation: Source
Source_Contribution: pit locations and attributes
Data from the Source pit data sheets were entered into an Microsoft Excel spreadsheet.
The Source map sheets of pit locations consisted of 11 sheets bound in an atlas. Since the data was to be captured via a digitizer tablet, photocopies were made of the each of the Source map sheets. The digitizer was coordinated to within a RMS error of 0.004 for each digitizing session.
At least four tic locations were determined and labeled on each map photocopy. The Source map sheets did not always have known locations to use for control points (tics), requiring that a control point be added along a known longitude-latitude line or State-Plane grid line.
Pit locations on the Source map sheet were digitized on-center of the pit location symbol or in some cases very slightly off- center (see the logical consistency section), and the pit number was attributed. If a pit number was used more than once a letter was appended to make each pit number unique. Table 3 in the Open-File Report text describes the actions taken to insure data consistency and uniqueness of the individual points.
Each of the digital data sets of the Source map sheets were transformed into a common projection then joined together to form one data set for the county.
Process_Date: 1997
Check plots were produced for each map sheet data set to proof for locational fidelity to the maps and to proof for pit number attributional correctness. Corrections and additions were made as needed.
Process_Date: 2000
First draft of metadata created by D. M. Hirschberg using FGDCMETA.AML ver. 1.2 05/14/98 on ARC/INFO data set marpits1
Process_Date: 20001122
Downloaded SDTS-DLG data 1:2,000,000 of boundaries, roadways, and hydrography from USGS web site to create base map data layer. Created an ArcInfo coverage and coded arcs as needed.
Process_Date: 2001
Process_Description: Creation of original metadata record
Process_Date: 20010103
Contact_Organization: U.S. Geological Survey
Contact_Person: Robin A. Fields
Contact_Position: GIS Lab coordinator
Address_Type: mailing and physical address
Address: 520 N. Park Ave, Suite 355
City: Tucson
State_or_Province: AZ
Postal_Code: 85719
Country: USA
Contact_Voice_Telephone: (520) 670-5511
Contact_Facsimile_Telephone: (520) 670-5571
Direct_Spatial_Reference_Method: Point
SDTS_Point_and_Vector_Object_Type: Point
Point_and_Vector_Object_Count: 916
Grid_Coordinate_System_Name: State Plane Coordinate System 1927
SPCS_Zone_Identifier: 3176
Scale_Factor_at_Central_Meridian: 0.9999
Longitude_of_Central_Meridian: -111 55 00
Latitude_of_Projection_Origin: 31 00 00
False_Easting: 152400.30480
False_Northing: 0
Planar_Coordinate_Encoding_Method: coordinate pair
Abscissa_Resolution: 65.249909375
Ordinate_Resolution: 65.249909375
Planar_Distance_Units: Feet
Horizontal_Datum_Name: North American Datum of 1927
Ellipsoid_Name: Clarke 1866
Semi-major_Axis: 6378206.4
Denominator_of_Flattening_Ratio: 294.98


    1  AREA                4    12     F      3
    5  PERIMETER           4    12     F      3
    9  MARPITS1#           4     5     B      -
   13  MARPITS1-ID         4     5     B      -
   17  PITNUM              5     6     C      -
   22  ORDER               4     5     I      -
   26  MAP                 2     3     C      -
   28  QTR                 2     3     C      -
   30  SEC                 2     3     C      -
   32  TWP                 3     4     C      -
   35  RNG                 3     4     C      -
   38  HI_CLASS            4     5     C      -
   42  MATERIAL           30    31     C      -
   72  PI                  4     5     C      -
   76  ABR_500             4     5     I      -
   80  SWELL_24            7     8     N      2
   87  THR_QTR             4     5     I      -
   91  NUM_4               4     5     I      -
   95  NUM_8               4     5     I      -
   99  NUM_40              4     5     I      -
  103  NUM_200             4     5     I      -
  107  SOURCE              4     4     I      -

 (items automatically generated by ArcInfo not detailed)
 PITNUM -The pit number of the location.

 ORDER -The ascending numeric order of the pit number.

 MAP -The map sheet (from Source) of the pit.

 QTR -Public Land Survey quarter-section or half-section of
      the pit location.  nw = northwest, ne = northeast,
      sw = southwest, se = southeast, w2 = western-half,
      n2 = northern-half and so on.

 SEC -Public Land Survey section of the pit location.

 TWP -Public Land Survey township of the pit location.

 RNG -Public Land Survey range of the pit location.

 HI_CLASS -Highest classification for material found in the pit.
           The following are the highest class designations for
           test data representing at least half or more of the
           total depth of the pit:
           MA--mineral aggregate
           AB--aggregate base
           SM--select material
           BR--borrow, no limits set
           CM--cover material (no specification provided)
           SB--special backfill (no specification provided)
           SS--subgrade seal

 MATERIAL -Material types (clay, sand, gravel, caliche, etc.
           Abreviations used for various materials found in
           each pit: [Classification scheme includes a mix of
           material types (ash, caliche, cinder, clay) and
           classification of material by size (boulders, silty)]
           ASH--ash; AND--andesite; BLDR--boulders;
           BST--basalt, malpais; CAL--caliche; CDR--cinders;
           CGM--conglomerate; CKR-clinkers; CLY--clay;
           COB--cobbles; DEC--decomposed; DIRT--dirt;
           GTE--granite; GVL--gravel; GYP--gypsum; LAV--lava;
           LOM--loam; LST--limestone; PUM--pumice; RCK--rock;
           RHY--rhyolite; SH--shale; SLT--silt; SLTY--silty;
           SND--sand; SS--sandstone; TRAV--travertine
         *Note that many of these abbreviations may not be
          found in the data as this list is applicable to data
          for all counties for which data has been collected.

 PI -(Plasticity Index) A measure of sensitivity that aggregate
     has to moisture change and is important when aggregate is
     used in Portland cement or asphalt concrete. White (1991,
     p. 13-42) defines PI as "the difference in the Atterberg
     liquid limit and plastic limit moisture contents." It is a
     value without a unit.  A PI of 4 is the maximum allowed as
     stipulated in American Society of Testing Material (ASTM)
     test D 3515 for materials used in asphalt concrete mixtures
     (White, 1991). The Arizona Highway Department (1972) used
      several PI standards.  These include ones where PI was not
     detected or was to be less than 5 or 10 depending on
     aggregate classification.  Testing was to be executed in
     accordance with the requirements of American Association
     of State Highway and Transportation Officers T 90
     (AHD, 1972).  Maximum allowable PI values are dependent on
     which of the 50 categories of aggregate types are in effect.
     When testing determined no PI, a "NP" (no plasticity) was
     entered in the ADOT (1977) table. The Open-File Report
     authors have changed all these "NP" to zero and entered
     -999 when fields were without values.

 ABR_500 -Los Angeles (LA) abrasion test (500 rotations).
          The test used to evaluate the resistance of a coarse
          aggregate to degradation by abrasion and impact is the
          Los Angeles abrasion test (Meyer and Zeinak 1991).
          In accordance with ADOT (1990, p. 718) standard
          specifications "the percent of wear of coarse aggregate
          at 500 revolutions, when tested in accordance with the
          requirements of American Association of State Highway
          Transportation Officials (AASHTO) test T 96, shall not
          exceed 40."  The same requirement is also specified for
          the class of aggregate 1 to 4 for material used in
          subbases and bases (ADOT, 1990, p. 140).  The detail of
          Los Angeles abrasion testing procedures may have
          changed so the results found in this data release may
          not be consistent with current specifications.
          Los Angeles abrasion test results are found in just 8
          percent of the pits listed in the inventory.

 SWELL_24 -Volume change--swell (24 hours).
           Data are available giving maximum 24-hour volume
           change (AHD, 1972).  Procedures and standards
           applicable at the time of the test are not given in
           the inventory but likely may have been AASHTO 101,
           Method B (AHD, 1972, Table 703-1 and 704-1).  These
           specifications set the maximum allowed volume increase
           to 0.06.  This is the maximum for all classes of
           mineral aggregate and one class of aggregate used for
           cover materials and slurry seal.

 THR_QTR -Percent material passing the 3/4 inch sieve. Materials
          passing the 3/4 inch mesh sieve are 19 mm or less.

 NUM_4 -Percent material passing the no. 4 sieve. Materials
        passing the no. 4 mesh sieve are 4.75 mm or less.

 NUM_8 -Percent material passing the no. 8 sieve. Materials
        passing the no. 8 mesh sieve are 2.338 mm or less.

 NUM_40 -Percent material passing the no. 40 sieve. Materials
         passing the no. 40 mesh sieve are 0.42 mm or less.

 NUM_200 -Percent material passing the no. 200 sieve. Materials
          passing the no. 200 mesh sieve are less than 0.074 mm.

 SOURCE  -Numeric value that relates to marpits1.ref look-up
          table giving information on the Source.

Entity_and_Attribute_Detail_Citation: none
Contact_Organization: U.S. Geological Survey Information Services
Address_Type: mailing address
Address: Open-File Reports, Box 25286
City: Denver
State_or_Province: CO
Postal_Code: 80225
Country: USA
Contact_Voice_Telephone: 1-303-202-4200
Contact_Facsimile_Telephone: 1-303-202-4693
Resource_Description: USGS OFR 01-122
The U.S. Geological Survey (USGS) provides these geographic data "as is." The USGS makes no guarantee or warranty concerning the accuracy of information contained in the geographic data. The USGS further makes no warranties, either expressed or implied as to any other matter whatsoever, including, without limitation, the condition of the product, or its fitness for any particular purpose. The burden for determining fitness for use lies entirely with the user. Although these data have been processed successfully on computers at the USGS, no warranty, expressed or implied, is made by the USGS regarding the use of these data on any other system, nor does the fact of distribution constitute or imply any such warranty.
In no event shall the USGS have any liability whatsoever for payment of any consequential, incidental, indirect, special, or tort damages of any kind, including, but not limited to, any loss of profits arising out of use of or reliance on the geographic data or arising out of the delivery, installation, operation, or support by USGS.
These data are not meant to be used or displayed at any scale larger than 1:176,306 (e.g. 1:100,000 or 1:24,000).
Format_Name: ARCE
Format_Version_Number: 7.2.1
Format_Information_Content: Attributed point data
File_Decompression_Technique: gzip and tar
Transfer_Size: 2
Fees: none
Metadata_Date: 20160205
Contact_Person: Peter N Schweitzer
Contact_Organization: USGS Midwest Area
Collection manager, USGS Geoscience Data Clearinghouse,
Address_Type: mailing address
Mail Stop 954
12201 Sunrise Valley Dr
City: Reston
State_or_Province: VA
Postal_Code: 20192-0002
Country: USA
Contact_Voice_Telephone: 703-648-6533
Contact_Facsimile_Telephone: 703-648-6252
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Access_Constraints: none
Metadata_Use_Constraints: none

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