DR9604-SY 930801TRINITY RIVER FEASIBILITY STUDY
CORRIDOR ENGINEERING MAPPING
GENERAL USERS GUIDE
JURISDICTIONAL DISTRIBUTION OF
MAPPING DATA SHEETS
DATA
GENERAL
SPECIFICATIONS
FEATURE INVENTORY
NORTH
COUNCIL
CENTRAL TEXAS
OF GOVERNMENTS
AUGUST 1993
UPPER TRINITY RIVER MAPPING PROJECT
The Trinity River Corridor is a unique resource in the heart of a growing urbanized area.
Extensive development has taken place within the floodplain of the Trinity Basin for well over one
hundred years, and that development has had major impacts on both the river's appearance and
behavior. The Fort Worth District of the U.S. Army Corps of Engineers conducted an
Environmental Impact Statement in 1987 to identify the cumulative impacts of development
projects in the Trinity River floodplain within the Dallas/Fort Worth Metroplex. The study indicated
that there would be measurable cumulative impacts on the existing flood protection resulting from
upstream alteration of the river channel and overbank areas. Under certain meteorological and
hydrological conditions, flood damages could exceed 4 billion dollars damage. Under extreme
flooding events, waters could overtop the existing levee system in Dallas, resulting in catastrophic
damages. To study potential opportunities to minimize these risks and damages, the Corps of
Engineers entered into a 5-year 8 million dollar Feasibility Study with the Texas Water
Development Board and nine local governments located along the banks of the Trinity Study
Area. During the study, data is assembled to determine economic, environmental, and
engineering solutions to study area problems and their associated environmental and social
impacts.
One of the most important products of the Upper Trinity River Feasibility Study is a 240 square
mile mapping project along the Trinity River Corridor, which will be the foundation for engineering
scale planning studies for years to come in the region. The mapping is digital, produced at the'
1 inch = 200 foot scale, with Greenhorne and O'Mara of Greenbelt, Maryland serving as the
primary contractor. The mapping, which is one of the most ambitious efforts ever attempted in
the country, will be used by the Corps of Engineers and NCTCOG to assess flood risks along
the corridor under different scenarios. Contour information exists at 2 foot intervals, and detailed
information includes hydrology, building outlines, transportation, and survey information. The
irregular boundary of the mapping region was developed to most efficiently meet the needs of
the hydrological modeling to be pedormed by the Corps of Engineers. For management
purposes, the data sheets have been divided into 340 rectangular mapping sheets, each
covering about 1.26 square miles. This structure has been designed to plot accurately at the 1
inch = 200 foot Scale.
Data from the upper Trinity Mapping Project will be available to the public through the Council
of Governments. Mapping products will be available in three forms:
1. Blueline Copies
2. Digital Files
3. Custom Paper Maps
Blueline Copies of any of the 340 (1" = 200') data sheets can ' produced from mylar prints,
ultimately available through the NCTCOG Public Affairs Department. Digital Files in either DXF
or Arc/Info GIS format will be available through the NCTCOG Regional Data Center. Custom
Paper maps (color, 1" = 400' scale, 1" = 800' scale) can be requested through the NCTCOG
Department of Environmental Resources or the Regional Data Center.
CONTENTS
GENERAL DATABASE SPECIFICATIONS
DIGITAL FILES AND CONTENTS
TRINITY MAPPING DATA FILE STRUCTURES
SAMPLES OF MAPPING
SAMPLE AREA
REDUCED FULL MAPPING SHEET
JURISDICTIONAL DISTRIBUTION OF ENGINEERING
MAPPING DATA SHEETS
EXTENT OF TRINITY CORRIDOR ENGINEERING MAPPING
CITY OF ARLINGTON
CITY OF CARROLLTON
CITY OF COPPELL
CITY OF DALLAS
DALLAS COUNTY UNINCORPORATED
DENTON COUNTY UNINCORPORATED
CITY OF FARMERS BRANCH
CITY OF FORT WORTH
CITY OF GRAND PRAIRIE
CITY OF IRVING
CITY OF LEWISVILLE
APPENDIX A - FEATURE ATTRIBUTE CODING
4
5
7
13
15
3
GENERAL DATABASE SPECIFICATIONS
TRINITY RIVER ENGINEERING DATA BASE
DATABASE AREA: 240 Square Miles of the Trinity River Corridor, including:
· The Trinity Clear Fork from Benbrook Lake north
to the Trinity West Fork Confluence
· The Trinity West Fork from Eagle Mountain Lake
east to the confluence of the Trinity Elm fork and
Trinity Mainstem in Irving
· The Trinity Elm Fork from Lewisville Lake south to
the Confluence of the Trinity West Fork and
Trinity Mainstem
· The Trinity Mainstem from the confluence of the
Trinity Elm Fork and Trinity West Fork south to
near Pleasant Run Road East in Dallas County.
AERIAL 1 Inch = 800 Feet, Flown February 22 and 23, 1991
PHOTOGRAPHY:
PHOTOGRAMMETRIC 563 Panels: 318 for Vertical Control, 245 for both Horizontal and
CONTROL: Vertical Control
SURVEY 18 Pairs Permanent Monuments established by GPS Method for
CONTROL: Trinity Engineering Mapping Project
307 Existing Monuments: 1st, 2nd, and 3rd Order
COORDINATE Horizontal Control Based on NAD 83 State Plane Coordinate
SYSTEM: System.
Vertical Control Based on National Geodetic Vertical Datum of
1929.
MAPPING National Map Accuracy Standards
ACCURACY:
DIGITAL DATA Stereo Complilation
COMPILATION:
PLO'ri'lNG SCALE: 1 Inch -- 200 Feet
HORIZONTAL (+/-) 4 Feet
ACCURACY:
VERTICAL (+/-) 1 Foot
ACCURACY:
CONTOUR INTERVAL: 2 Feet
DIGITIZED CROSS 946 at an Average Length of 9,000 Feet.
SECTIONS:
DIGITAL FILES AND CONTENTS
(For More Information, See Appendix A)
FILE: Building Outlines (BO)
Television Radio Towers
Description:
Contents:
Footprints of all buildings larger than 250
square foot roof area,
Buildings
Ruins
Trailer Homes
Areas Under Construction
FILE: Contour Lines (CL)
Description: Topographical information at 2 foot
contour intervals.
Contents: Index (1 O-foot) Contours
Intermediate (2-foot) Contours
FILE: Drainage Structures (DS)
Description: Man-made linear features.
FILE: Hydrography (HL)
Description:
Edge of banks of larger hydrologic
features, centerlines of smaller
hydrologic features,
Contents:
River/Stream Shorelines
Waterfall
Lakes
March/Swamp
intermittent Stream Centerline
Pond
Flow Arrows
FILE: Map Control (MC)
Description: Existing and New Survey Control Points
Used in the Engineering Mapping
Project.
Contents:
Man-Made Drainage
Channels
Flood Gates
Dams
Levees
Flow Arrows
Aerial Pipelines
Levee Profiles
Concrete Drains
Culverts
Headwalls
Catch Basins
Underground Pipes
Other Drainage Structures
FILE: Electric Utilities (EU)
Description: Linear and point features.
Contents:
Transmission Lines
Misc. Utility Lines
Substation
Utility Poles
Electric Transmission Towers
Contents:
FILE:
Description:
Contents:
FILE:
Contents:
Benchmark
Horizontal Control Points
Horizontal/Vertical Control
Points
Vertical Control Points
Miscellaneous Outlines (MO)
Stored as polygon features.
Prominent Tree Clumps
Landfills
Quarries
Gravel Pits
Rock Outcrops
Escarpments
Revetments
Miscellaneous Structures (MS)
Rural Fences
Retaining Walls
Free Standing Walls
Storage Tanks
5
FILE: Recreation and Open Space (RO)
Description:
Contents:
General open space and recreation
categories stored as polygon features.
Cemeteries
Golf Courses
Parks
Picnic Areas
Playgrounds
Athletic Fields
Racetracks
Tennis Courts
Areas Under Construction
FILE: Railroads (RR)
Contents: Track Centerlines
RR Bridge
RR Crossing Signal
FILE: Street Centerlines (SC)
Description:
Residential considered 2 lane widths or
less, non-residential considered greater
than 2 lane widths.
Contents:
Residential Street Centerlines
Non-Residential Street
Centerlines
FILE: Spot Height (SH)
Description:
Contents:
Data points with elevation text.
Spot Elevations
Water Surface Elevations
FILE: State Plane Coordinate System
(sP)
Description:
Linear features and text marking key
boundaries, including sheet boundaries
and study limit boundaries.
Contents:
State Plane Grid
Neatline
City Boundaries
County Boundaries
Study Limit Boundaries
FILE: Transportation (TR)
Description:
Edge of pavement for improved streets
and alleys, edge of traveled way for
unimproved streets.
Contents:
Improved Streets
Alleys
Unimproved Streets
Pedestrian Bridges
Bridges
Parking Areas
Tunnels
Bike Paths
Concrete Barriers
Trails
Runways, Taxiways, Aprons
FILE: Water Utilities (WU)
Description; Linear features marking outlines of
prominent water utility features.
Contents:
Water Tanks
Water Towers
Storm Water Pump Stations
Wastewater Treatment Plants
FILE: Miscellaneous Features (XX)
Contents: Manholes (visible)
6
TRt~'~'Y MAPPING DATA FILE STRUCTUI~
LAYER NAME: BO
FEATURE TYPE: LINE
8 ITEMS: STARTING IN POSITION
COL ITEM NAME
1 FNODE# 4
5 TNODE# 4
9 LPOLY# 4
13 RPOLY# 4
17 LENGTH 8
25 B0# 4
29 BO-ID 4
33 FEA CODE 2
1
WDTH OPUT TYP N.DEC ALTERNATE NAME
5 B -
5 B -
5 B -
5 B -
18 F 5
5 B -
5 B -
3 B -
Last Update: 8/23/1993
ANNOTATION ANNOTATION LEVEL
Major Building Name 1
RUIN 1
Under Construction I
LAYER NAME: BO
FEATURE TYPE: POLYGON
6 ITEMS: STARTING IN POSITION
COL ITEM NAME
1 AREA 8
9 PERIMETER 8
17 BO# 4
21 BO-ID 4
25 FEA CODE 2
27 BOC~DE 10
1
WDTH OPUT TYP N.DEC ALTERNATE NAME
18 F 5
18 F 5
5 B -
5 B -
3 B -
10 C -
Last Update: 8/23/1993
LAYER NAME: CL
FEATURE TYPE: LINE
9 ITEMS: STARTING IN POSITION
COL ITEM NAME
1 FNODE# 4 5 B -
5 TNODE# 4 5 B -
9 LPOLY# 4 5 B -
13 RPOLY# 4 5 B -
17 LENGTH 8 18 F 5
25 CL# 4 5 B -
29 CL-ID 4 5 B -
33 FEA CODE 2 3 B -
35 ELE~ 2 4 B -
1
WDTH OPUT TYP N.DEC ALTERNATE NAME
Last Update: 8/23/1993
ANNOTATION
Elevation
ANNOTATION LEVEL
1
LAYER NAME: CL
FEATURE TYPE: POLYGON
6 ITEMS: STARTING IN POSITION
COL ITEM NAME
1 AREA 8
9 PERIMETER 8
17 CL# 4
21 CL-ID 4
25 FEA CODE 2
27 ELE~ 2
1
WDTH OPUT TYP N.DEC ALTERNATE NAME
18 F 5
18 F 5
5 B -
5 B -
3 B -
4 B -
Last Update:
8/23/1993
TR~FY MAPPING DATA FILE STRUCTU'""S
LAYER NAME: DS
FEATURE TYPE: LINE
8 ITEMS: STARTING IN POSITION 1
COL ITEM NAME
1 FNODE# 4 5 B -
5 TNODE# 4 5 B -
9 LPOLY# 4 5 B -
13 RPOLY# 4 5 B -
17 LENGTH 8 18 F 5
25 DS# 4 5 B -
29 DS-ID 4 5 B -
33 FEA CODE 2 3 B -
WDTH OPUT TYP N.DEC ALTERNATE NAME
Last Upda%e: 8/23/1993
ANNOTATION ANNOTATION LEVEL
Direction Flow Arrow 1
Dam 1
LAYER NAME: EU
FEATURE TYPE: LINE
8 ITEMS: STARTING IN POSITION
COL ITEM NAME
1 FNODE# 4
5 TNODE# 4
9 LPOLY$ 4
13 RPOLY# 4
17 LENGTH 8
25 EU# 4
29 EU-ID 4
33 FEA CODE 2
1
WDTH OPUT TYP N.DEC ALTERNATE NAME
5 B -
5 B -
5 B -
5 B -
18 F 5
5 B -
5 B -
3 B -
Last Update: 8/23/1993
LAYER NAME: EU
FEATURE TYPE: POINT
5 ITEMS: STARTING IN POSITION
COL ITEM NAME 1 AREA
9 PERIMETER
17 EU#
21 EU-ID
25 FEA CODE
1
WDTH OPUT TYP N.DEC ALTERNATE NAME
8 18 F 5
8 18 F 5
4 5 B -
4 5 B -
2 3 B -
Last Update: 8/23/1993
LAYER NAME: HL
FEATURE TYPE: LINE
8 ITEMS: STARTING IN POSITION
COL ITEM NAME
1 FNODE# 4
5 TNODE# 4
9 LPOLY# 4
13 RPOLY# 4
17 LENGTH 8
25 HL$ 4
29 HL-ID 4
33 FEA CODE 2
1
WDTH OPUT TYP N.DEC ALTERNATE NAME
5 B -
5 B -
5 B -
5 B -
18 F 5
5 B -
5 B -
3 B -
Last Update: 8/23/1993
ANNOTATION ANNOTATION LEVEL
River/Stream Name 1
Lakes 1
Marsh Swamp 1
Intermediate Stream 2
Pond 2
Flow Arrows 3
8
TRP"'"~r~ MAPPING DATA FILE STRUCTU"'"S
LAYER NAME: MC
FEATURE TYPE: POINT
7 ITEMS: STARTING IN POSITION
COL ITEM NAME
1 AREA 8
9 PERIMETER 8
17 MC# 4
21 MC-ID 4
25 FEA CODE 2
27 CPI~ 8
35 ELEV 4
1
WDTH OPUT TYP N.DEC ALTERNATE NAME
18 F 5
18 F 5
5 B -
5 B -
3 B -
8 C -
5 B -
Last Update: 8/23/1993
ANNOTATION ANNOTATION LEVEL
Horizontal Control 1
Horiz./Vertical Control 1
Vertical Control I
LAYER NAME: MO
FEATURE TYPE: LINE
8 ITEMS: STARTING IN POSITION
COL ITEM NAME
1 FNODE# 4
5 TNODE# 4
9 LPOLY# 4
13 RPOLY# 4
17 LENGTH 8
25 MO# 4
29 MO-ID 4
33 FEA CODE 2
1
WDTH OPUT TYP N.DEC ALTERNATE NAME
5 B -
5 B -
5 B -
5 B -
18 F 5
5 B -
5 B -
3 B -
Last Update: 8/23/1993
ANNOTATION
Gravel Pits
ANNOTATION LEVEL
1
LAYER NAME: MO
FEATURE TYPE: POLYGON
5 ITEMS: STARTING IN POSITION
COL ITEM NAME 1 AREA
9 PERIMETER
17 MO#
21 MO-ID
25 FEA CODE
1
WDTH OPUT TYP N.DEC ALTERNATE NAME
8 18 F 5.
8 18 F 5
4 5 B -
4 5 B -
2 3 B -
Last Update: 8/23/1993
LAYER NAME: MS
FEATURE TYPE: LINE
8 ITEMS: STARTING IN POSITION
COL ITEM NAME
1 FNODE# 4
5 TNODE# 4
9 LPOLY# 4
13 RPOLY# 4
17 LENGTH 8
25 MS# 4
29 MS-ID 4
33 FEA CODE 2
1
WDTH OPUT TYP N.DEC ALTERNATE NAME
5 B -
5 B -
5 B -
5 B -
18 F 5
5 B -
5 B -
3 B -
Last Update: 8/23/1993
9
Tr"'~TY MAPPING DATA FILE STRUCTI~"c..S
LAYER NAME: RO
FEATURE TYPE: LINE
8 ITEMS: STARTING IN POSITION
COL ITEM NAME
1 FNODE# 4
5 TNODE# 4
9 LPOLY# 4
13 RPOLY# 4
17 LENGTH 8
25 RO# 4
29 RO-ID 4
33 FEA CODE 2
1
WDTH OPUT TYP N.DEC ALTERNATE NAME
5 B -
5 B -
5 B -
5 B -
18 F 5
5 B -
5 B -
3 B -
Last Update: 8/23/1993
ANNOTATION
Cemetery
Goff Course
Park
Picnic Area
Playground
Athletic Field
Racetrack
Tennis Court
ANNOTATION LEVEL
LAYER NAME: RO
FEATURE TYPE: POLYGON
5 ITEMS: STARTING IN POSITION
COL ITEM NAME 1 AREA
9 PERIMETER
17 RO#
21 RO-ID
25 FEA CODE
1
WDTH OPUT TYP N.DEC ALTERNATE NAME
8 18 F 5
8 18 F 5
4 5 B -
4 5 B -
2 3 B -
Last Update: 8/23/1993
LAYER NAME: RR
FEATURE TYPE: LINE
9 ITEMS: STARTING IN POSITION 1
COL ITEM NAME WDTH OPUT TYP N.DEC ALTERNATE NAME
1 FNODE# 4 5 B -
5 TNODE# 4 5 B -
9 LPOLY# 4 5 B -
13 RPOLY# 4 5 B -
17 LENGTH 8 18 F 5
25 R_R# 4 5 B -
29 RR-ID 4 5 B -
33 FEA CODE 2 3 B -
35 RR ~AME 20 20 C -
Last Update: 8/23/1993
ANNOTATION
Railroad Name
ANNOTATION LEVEL
1
LAYER NAME: RR
FEATURE TYPE: POINT
5 ITEMS: STARTING IN POSITION
COL ITEM NAME 1 AREA
9 PERIMETER
17 RR#
21 RR-ID
25 FEA CODE
1
WDTH OPUT TYP N.DEC ALTERNATE NAME
8 18 F 5
8 18 F 5
4 5 B -
4 5 B -
2 3 B -
Last Update: 8/23/1993 .
10
TE~.TY MAPPING DAI'A FILE STRUCTb, 'S
LAYER NAME: SC
FEATURE TYPE: LINE
22 ITEMS: STARTING IN POSITION
COL ITEM NAME
1 FNODE# 4
5 TNODE # 4 5 B -
9 LPOLY# 4 5 B -
13 RPOLY# 4 5 B -
17 LENGTH 8 18 F 5
25 SC# 4 5 B -
29 SC-ID 4 5 B -
33 FEA CODE 2 3 B -
35 FRO~ TO IMPED 4 12 F 3
39 TO FROM IMPED 4 12 F 3
43 LEFT DE~4AND 4 5 B -
47 RIGH~ DE~%/qD 4 5 B -
51 MATER~AL 2 3 B -
53 WIDTH 2 3 B -
55 L ADD F 6 6 I -
61 L ADD T 6 6 I -
67 R--ADD--F 6 6 I -
73 R ADD T 6 6 I -
79 R~AD 5IR 2 2 C -
81 ROAD NAME 20 20 C -
101 ROAD TYPE 4 4 C -
105 PLT 2 3 B -
1
WDTH OPUT TYP N.DEC ALTERNATE NAME
5 B -
Last Update: 8/23/1993
LAYER NAME: SH
FEATURE TYPE: POINT
6 ITEMS: STARTING IN POSITION
COL ITEM NAME
1 AREA 8
9 PERIMETER 8
17 SH# 4
21 SH-ID 4
25 FEA CODE 2
27 ELEV 4
1
WDTH OPUT TYP N.DEC ALTERNATE NAME
18 F 5
18 F 5
5 B -
5 B -
3 B -
6 F 1
Last Update: 8/23/1993
ANNOTATION ANNOTATION LEVEL
Spot Height Elevation 1
Water Height Elevation 2
LAYER NAME: SP
FEATURE TYPE: LINE
8 ITEMS: STARTING IN POSITION 1
COL ITEM NAME WDTH OPUT TYP N.DEC ALTERNATE NAME
1 FNODE# 4 5 B -
5 TNODE# 4 5 B -
9 LPOLY# 4 5 B -
13 RPOLY# 4 5 B -
17 LENGTH 8 18 F 5
25 SP# 4 5 B -
29 SP-ID 4 5 B -
33 FEA CODE 2 3 B -
Last Update: 8/23/1993
ANNOTATION ANNOTATION LEVEL
State Plane 500 Foot Value I
11
T?";ITY MAPPING DATA FILE STRUCT~'"ES
LAYER NAME: TR
FEATURE TYPE: LINE
8 ITEMS: STARTING IN POSITION
COL ITEM NAME
1 FNODE# 4
5 TNODE# 4
9 LPOLY# 4
13 RPOLY# 4
17 LENGTH 8
25 TR# 4
29 TR-ID 4
33 FEA CODE 2
1
WDTH OPUT TYP N.DEC ALTERNATE NAME
5 B -
5 B -
5 B -
5 B -
18 F 5
5 B -
5 B -
3 B -
Last Update: 8/23/1993
ANNOTATION
Street Name
Parking Areas
ANNOTATION LEVEL
1
2
LAYER NAME: WU
FEATURE TYPE: LINE
8 ITEMS: STARTING IN POSITION
COL ITEM NAME
1 FNODE# 4
5 TNODE# 4
9 LPOLY# 4
13 RPOLY# 4
17 LENGTH 8
25 WU# 4
29 WU-ID 4
33 FEA CODE 2
1
WDTH OPUT TYP N.DEC ALTERNATE NAME
5 B -
5 B -
5 B -
5 B -
18 F 5
5 B -
5 B -
3 B -
Last Update: 8/23/1993
LAYER NAME: XX
FEATURE TYPE: POINT
5 ITEMS: STARTING IN POSITION
COL ITEM NAME
1 AREA
9 PERIMETER
17 XX#
21 XX-ID
25 FEA CODE
1
WDTH OPUT TYP N.DEC ALTEP. NATE NAME
8 18 F 5
8 18 F 5
4 5 B -
4 5 B -
2 3 B -
Last Update: 8/23/1993
12
Trinity
River Engineering Mapping
Sample of Mapping
Map Scale: 1 inch -- 800 feet
North Texas GIS Consortium Digital Ortho View
Engineering Mapping of Sample Area
02/28/95
UPPER TRINITY RIVER CORRIDOR
EXTENT OF TRINITY CORRIDOR ENGINEERING MAPPING
Trinity River Feasibility Study
Scale: 1:348000
[Bedford
\*
Piano
i
) /
TRINITY RIVER FEASIBILITY STUDY
JURISDICTIONAL DISTRIBUTION OF
ENGINEERING MAPPING DATA SHEETS
,, /
_j , / \ r~"'~r ~;,~ ~ I /
[ot.a,I Shept, s (~oQtqinino ~~......---._~ .
.o.,on o..ur, so,c.,on:~ .... \_~ .... /____~__~/~._~__ ~ ..........
32 a,c,d .~ ~
36 a,b,c,d /1'~ ~ ~ ~'~ ~'-~ ~ ~ ~
TRINI~ RIVER CORRIDOR MAPPING AREA
..... /____~ ~,.: ;.. __ _> _~ .... ....
~.,. ,./, ~ ,~ ~ .............. ,. ~c~~ ~,,}~ -~ ,~,
,, ........... , / ': ~ ~ ,
'121' n c '% ..... n ~ c , :
: : ,. f , . ...... ~:, ., ,,
I /I r ~ '~l ~ , ~ I
, / ............. ............ ~; d~i :
, ~.~, ~g~:~uu~ ~ -"
",. ¢ ..',> ~: '~ .:?-, i ..;
"-~..,~'- ;~ - - ~<- ........ ~ ....... / ~,
~(/ ~. ,.,~¢," :.,' ",., / / ' . .~-~'-",--~ .~ I I ~,--,., ,: ~''
JURISDICTION~ MAPPING SHEETS
Cl~ OF ARLINGTON
1~7 ~e: I inch = 1~1
APPENDIX A
DIGITAL MAPPING STANDARDS
FEATURE ATTRIBUTE CODING
Engineering Scale Mapping
Developed As Part of
TI~E UPPER TRINITY RIVER FEASIBILITY STUDY
NORTH CENTRAL TEXAS COUNCIL OF GOVERNMENTS
Department of Environmental Resources
AUGUST 1993
UPPER TRINITY RIVER MAPPING PROJECT
The Trinity River Corridor is a unique resource in the heart of a growing urbanized area.
Extensive development has taken place within the floodplain of the Trinity Basin for well
over one hundred years, and that development has had major impacts on both the
river's appearance and behavior. The Fort Worth District of the U.S. Army Corps of
Engineers conducted an Environmental Impact Statement in 1987 to identify the
cumulative impacts of development projects in the Trinity River floodplain within the
Dallas/Fort Worth Metroplex. The study indicated that there would be measurable
cumulative impacts on the existing flood protection resulting from upstream alteration of
the river channel and overbank areas. Under certain meteorological and hydrological
conditions, flood damages could exceed 4 billion dollars damage. Under extreme
flooding events, waters could overtop the existing levee system in Dallas, resulting in
catastrophic damages. To study potential opportunities to minimize these risks and
damages, the Corps of Engineers entered into a 5-year 8 million dollar Feasibility Study
with the Texas Water Development Board and nine local governments located along the
banks of the Trinity Study Area. During the study, data is assembled to determine
economic, environmental, and engineering solutions to study area problems and their
associated environmental and social impacts.
One of the most important products of the Upper Trinity River Feasibility Study is a 240
square mile mapping project along the Trinity RiVer Corridor, which will be the
foundation for engineering scale planning studies for years to come in the region. The
mapping is digital, produced at the 1 inch = 200 foot scale, with Greenhorne and
O'Mara of Greenbelt, Maryland serving as the primary contractor. The mapping, which
is one of the most ambitious efforts ever attempted in the country, will be used by the
Corps of Engineers and NCTCOG to assess flood risks along the corridor under different
scenarios. Contour information exists at 2 foot intervals, and detailed information
includes hydrology, building outlines, transportation, and survey information. The
irregular boundary of the mapping region was developed to most efficiently meet the
needs of the hydrological modeling to be performed by the Corps of Engineers. For
management purposes, the data sheets have been divided into 340 rectangular mapping
sheets, each covering about 1.26 square miles. This structure has been designed to plot
accurately at the 1 inch = 200 foot scale.
FEATURE ATTRIBUTE CODING
2
PURPOSE OF THIS DOCUMENT
In order to realize the full potential for Geographic Information System data applications,
it is important that individual features be linkable to like features and distinguishable from
dissimilar features. Essentially, identification and categorization are vital steps for
most, if not all, worthwhile GIS applications. A typical GIS datafile can contain
information for hundreds of polygon features, but without identifying what those polygon
features represent, or what group of relevant features they belong to, many applications
are impossible. Put simply, a geographic information system implies both geography
and information, not just geography.
Of primary importance is the need for multiple users to be consistent in their assignment
of data values to new features. In the development of engineering level data for the
corridor, specific feature numerical codes have been developed for nearly 100 types of
features. Building outlines, for example, have been assigned feature code 31, Levees
feature code 89, Lakes feature code 131, and Utility Poles feature code 110. Any
additional building outlines, Levees, Lakes, Utility Poles, and so on that are added by
future users must be assigned these same codes. Otherwise, there will be no
consistency and manipulation may become a complicated and defeating task rather than
an efficient one. If enough users add new data with unrelated feature coding schemes,
the database could deteriorate rapidly.
The codes listed in this document are the standards for features currently existing in the
engineering mapping database. They should be followed during any addition of data.
They should also serve as a guide for understanding existing codes and performing data
analysis. Any new features added that are not addressed in these standards should be
assigned new feature codes and, upon approval, incorporated into this document.
This Document Last Modified on August 23, 1993
FEATURE ATTRIBUTE CODING
3
TABLE OF CONTENTS
LINE FEATURES
Street Centerlines
Building Outlines
Contour Lines
Drainage Structures
Electric Utilities
Hydrology
Miscellaneous Structures
Railroad
Transportation
Recreation and Open Space
State Plane Coordinate System
Miscellaneous Outlines
Water Utilities
5
5
6
7
8
9
10
10
11
13
14
15
16
POINT FEATURES
Electric Utilities
Map Control
Railroad
Spot Height
Miscellaneous Features
17
17
18
1.8
18
POLYGON FEATURES
Building Features'
Contour Lines
Recreation and Open Space
Miscellaneous Outlines
19
19
19
21
TABLE OF CURRENTLY UTILIZED FEATURE CODES
22
FEATURE ATTRIBUTE CODING
4
LINE FEATURES
FEA-CODE:
14
15
STREET CENTERLINE
FEATURE
Residential Street Centerline
Non-Residential Street Centerline
(sc)
DESCRIPTION
Lines marking the geometric
centerline of streets devoted
primarily for residential uses.
Lines marking the geometric
centerline of streets not
strictly devoted to residential
uses, but addressing other
uses as well.
FEA_CODE:
31
32
33
34
BUILDING OUTLINES (BO)
FEATURE
Buildings
DESCRIPTION
Existing Building Structure
Outlines.
Ruins
Remains of Building
Structures no longer
completely intact.
Trailer Home
Outlines of individual mobile
homes/trailer homes.
Under Construction
BUilding Structures presently
under construction.
FEATURE ATTRIBUTE CODING
5
FEA CODE:
66
67
68
69
70
71
72
73
74
75
CONTOUR LINES (CL)
FEATURE
Index Contour
Index Contour Obscured
Index Depression Contour
Index Depression Obscured
Intermediate Contour
Intermediate Obscured
Intermediate Depression
Intermediate Depression Obscured
Index Hidden
Intermediate Hidden
DESCRIPTION
Line identifying 10 foot
contour interval.
10 foot Contour Line
interpolated due to visual
interference from other
ground features/structures.
10 foot Contour Line marking
a depressed feature (sink
hole, pit, etc...)
10 foot Contour Line marking
a depressed feature
interpolated due to visual
interference.
Line identifying 2 foot contour
interval.
2 foot Contour Line
interpolated due to visual
interference from other
ground features/structures.
2 foot Contour Line marking
a depressed feature (sink
hole, pit, etc...)
2 foot Contour Line marking
a depressed feature
interpolated due to visual
interference.
10 foot Contour line through
as obscuring structure such
as a building or bridge.
2 foot Contour line through
an obscuring structure such
as a building or bridge.
FEATURE ATTRIBUTE CODING
6
76
77
78
Contour Closure Line
Index Contour (hidden text)
Intermediate Contour (hidden text)
Outer boundary line marking
the extent of the digital
information presently utilized.
Closes off polygons that may
or not extend into other data
files.
10 foot Contours hidden by
text placement.
2 foot Contours hidden by
text placement.
FEA CODE:
86
87
88
89
91
DRAINAGE STRUCTURES (DS)
FEATURE
DESCRIPTION
Man-made Drainage Channel
Outline of Man-made
channels designed for
artificial inception and
removal of ground water or
surface water.
Flood Gate
Line marking an artificial
structure in the water channel
that can be manipulated to
increase or restrict water flow
through a channel.
Dams
Line marking a structure
located in a water channel
that restricts the flow of water
through that channel.
Levees
Line marking a dike or
embankment intended to
protect a particular land area
from water inundation or to
.confine a streamflow to its
regular channel.
Flow Arrow
Line symbol indicating
direction of hydrological flow.
FEATURE ATTRIBUTE CODING
7
92
93
94
97
98
99
100
101
1 O2
FEA CODE:
106
107
108
Aerial Pipelines
Outline of unburied pipeline
supported to achieve suitable
grade.
Levee Profile
Cross Section
Concrete Drain
Outline of man-made
drainage channel lined with
concrete
Culvert
Line marking the location of a
conduit to convey water
through an embankment.
Headwalls
Line marking a wall at the
end of a culvert or drain to
protect fill from scour or
undermining, increase
hydraulic efficiency, divert
direction of flow, or serve as
a retaining wall.
Catch Basins
Storm water drop inlet
Underground Pipe
Line indicating the location of
artificial buried drainage
pathways, such as sewers.
Drainage Structure
Line marking an artificial
structure designed for the
inception and removal of
ground water or surface
water.
ELECTRIC UTILITIES (EU)
FEATURE
DESCRIPTION
Transmission Line
Line marking the pathway of
electrical transmission lines.
Misc. Utility Lines
Line marking another type of
utility lines.
Subst~ion
Line marking the outlines of
electrical substation facilities.
FEATURE ATTRIBUTE CODING
8
FEA CODE:
127
131
132
134
136
137
HYDROLOGY (HL)
FEATURE
River/Stream Shorelines
Waterfall
Lakes
Marsh/Swamp
Intermittent Stream Centerline
Pond
Flow Arrows
DESCRIPTION
Boundaries of the natural
channels of rivers and
streams under normal
hydrologic conditions.
Line marking a natural or
artificial change in channel
elevation over which water
must progress and change
water surface elevation.
Line delineating the outer
boundaries of a large inland
body of water.
Line delineating the outer
boundaries of largely.
saturated areas often
containing a variety of
grasses.
Centerline of a stream
channel that does not flow
continuously.
Line delineating the outer
boundaries of a small inland
body of water.
Line symbols showing the
direction of water flow along
a channel or body of water.
FEATURE ATTRIBUTE CODING
9
FEA CODE:
177
178
181
182
183
FEA CODE:
186
187
MISCELLANEOUS STRUCTURES (MS)
FEATURE
DESCRIPTION
Rural Fences
Lines marking the pathways
of major fences in largely
rural areas, usually
delineating parcel
boundaries, land use
variations, or restricted areas.
Retaining Wall
Lines marking an artificial
structure designed to restrict
the erosion of land along a
slope or embankment.
Free Standing Walls
Lines marking artificial walls
not primarily designed to
restrict erosion.
Hidden Structure
Lines marking physical
structures whose view from
the above are hidden or
impeded significantly by
other structures.
Storage Tank
Lines marking the outer
boundaries of visible storage
containers.
RAILROAD (RR)
FEATURE
DESCRIPTION
Track Centerline
Line marking the geometric
center of a railway line.
RR Bridge
Line marking the location
where a railway line crosses
· over other localized features
or structures.
FEATURE ATTRIBUTE CODING
10
FEA_CODE:
236
237
238
241
242
243
244
245
TRANSPORTATION (TR)
FEATURE
Improved Streets
DESCRIPTION
Lines marking the location of
roadways that have been
surfaced at some point in
time and may or not be
regularly maintained.
Alley
Lines marking Iow volume
transportation routes
designed for very localized
traffic and city services.
Unimproved Streets
Lines marking the location of
roads that have not been
surfaced or are not
maintained.
Pedestrian Bridge
Lines marking elevated.
walkways for pedestrian
traffic designed to provide
safer or more convenient
pathways across other
localized features or
structures.
Bridge
Lines marking elevated traffic
routes across other localized
features or structures.
Parking Areas
Lines marking the outer
boundaries of traffic parking
lots.
Tunnel
Lines marking locations
where traffic routes go
beneath natural or artificial
· .structures,
Bike Paths
Lines marking pathways
designed primarily for bicycle
transportation.
FEATURE ATTRIBUTE CODING
11
246
249
25O
Concrete Barrier
Trails
Runways, Taxiways, Aprons
Lines marking the existence
of a concrete wall or other
restraining structure designed
to separate traffic routes from
other natural or artificial
features.
Lines marking the paths of
walkways for pedestrians,
often located in more natural
settings.
Lines marking the outer
boundaries of transportation
routes for aircraft on the
ground.
FEATURE ATTRIBUTE CODING
12
FEA_CODE:
252
253
255
256
257
259
26O
261
262
RECREATION AND OPEN SPACE (RO)
FEATURE
Cemetery
DESCRIPTION
Lines marking the outer
boundaries of land uses
devoted for the burial of
deceased individuals.
Golf Course
Lines marking the boundaries
of facilities devoted to golf
sporting activities.
Park
Lines marking the outer
boundaries of lands reserved
for parks and recreational
activities.
Picnic Area
Lines marking the outer
boundaries of facilities
reserved for picnic activities. ·
Playground
Lines marking the outer
boundaries of facilities
reserved for playground
activities.
Athletic Field
Lines marking the outer
boundaries of facilities
reserved for local athletic
activities.
Racetrack
Lines marking the outer
boundaries of facilities
devoted to racing spectacles.
Tennis Court
Lines marking the outer
boundaries of facilities
devoted to tennis sporting
.activities.
Area Under Construction
Lines delineating boundaries
of areas presently under
construction.
FEATURE ATTRIBUTE CODING
13
FEA CODE:
291
292
293
294
295
STATE PLANE COORDINATE SYSTEM (SP)
FEATURE
DESCRIPTION
State Plane Grid
Overlay grid deliniating state
plane coordinate lines at
1000 unit intervals,
Neatline
General lines closing off map
features split or bounded by
study tile or sheet lines.
City Boundaries
Lines marking the
jurisdictional boundaries of
cities,
County Boundaries
Lines marking the
jurisdictional boundaries of
counties.
Study Limit
Lines marking the boundary
of the Trinity Mapping Study
Area.
FEATURE ATTRIBUTE CODING
14
FEA_CODE:
311
312
313
314
315
316
317
MISCELLANEOUS OUTLINES (MO)
FEATURE
DESCRIPTION
Prominent Tree Clumps
Lines marking the outer
boundaries of significant
groups of trees
Landfills
Lines marking the outer
boundaries of Landfilling
facilities.
Quarries
Lines marking the outer
boundaries of quarrying
activities.
Gravel Pits
Lines marking the outer
boundaries of pits presently
or previously devoted
primarily to the mining of
gravel and sands.
Rock Outcroppings
Lines marking the outer
boundaries of significant rock
outcroppings.
Escarpments
Lines marking the location of
geologic escarpments.
Revetments
Lines marking locations
where a facing of masonry
has been placed to retain fill
from water bodies.
FEATURE ATTRIBUTE CODING
15
FEA_CODE:
376
377
378
383
WATER UTILITIES (WU)
FEATURE
Water Tank
DESCRIPTION
Lines outlining the
boundaries of structures
devoted to the storage or
related management of water
resources.
Water Tower
Lines outlining the horizontal
boundaries of elevated
structures designed to store
or manage water resources.
Storm Water Pump Station
Lines outlining the
boundaries of facilities
devoted to pumping and
related management of water
runoff and storage from storm
events.
Wastewater Treatment Plant
Lines outlining the facility
boundaries of plants
designed to treat and release
wastewater.
FEATURE ATTRIBUTE CODING
16
POINT FEATURES
FEA_CODE:
110
112
115
ELECTRIC UTILITIES (EU)
FEATURE
Utility Pole
DESCRIPTION
Points marking the location of
poles carrying elevated
electrical wires.
Electric Transmission Tower
Points marking the location of
towers supporting
transmission lines.
Television/Radio Towers
Points marking the location of
Towers designed to
broadcast radio or television
signals.
FEA CODE:
166
167
168
169
MAP CONTROL (MC)
FEATURE
Benchmark
Horizontal Control Points
Horizontal/Vertical Control Points
Vertical Control Points
DESCRIPTION
Documented First Order
Permanent Markers
established by the USGS or
NGS.
Points established as part of
the Upper Trinity River
Feasibility Study to provide
horizontal mapping control.
Points established as part of
the Upper Trinity River
Feasibility Study to provide
both horizontal and vertical
'mapping control.
Points established as part of
the Upper Trinity River
Feasibility Study to provide
vertical mapping control.
FEATURE ATTRIBUTE CODING
17
FEA_CODE:
190
RAILROAD (RR)
FEATURE
Railroad Crossing Signal
DESCRIPTION
Points marking the location of
railroad crossing signal
equipment.
FEA_CODE:
281
282
SPOT HEIGHT (SH)
FEATURE
Spot Elevations
Water Surface Elevations
DESCRIPTION
Points marking the location
where specific elevation
attribute data is available for
physical features in a Point
Attribute Data File.
Points marking the locations
where specific elevation
attribute data is available for
water features in a Point
Attribute Data File.
FEA_CODE:
997
MISCELLANEOUS FEATURES (XX)
FEATURE
Miscellaneous
DESCRIPTION
999
Manholes
Points marking the location of
manholes visible from the air.
FEATURE ATTRIBUTE CODING
18
POLYGON FEATURES
FEA_CODE:
36
37
BUILDING OUTLINES (BO)
FEATURE
Building
Background
DESCRIPTION
Polygons describing building
outlines
Polygons external from the
building outline,
FEA CODE:
81
CONTOUR LINES (CL)
FEATURE
Area Label
DESCRIPTION
Polygons representing areas
located within a particular 2
foot contour interval.
FEA CODE:
252
253
255
256
257
RECREATION AND OPEN .SPACE (RO)
FEATURE
DESCRIPTION
Cemetery
Polygons outlining the
boundaries of cemeteries.
Golf Course
Polygons outlining the
boundaries of facilities
devoted to golf sporting
activities.
Park
Polygons outlining the
boundaries of facilities
devoted to golf sporting
activities.
Picnic Area
Polygons outlining the
boundaries of facilities
devoted to picnic activities.
Playground
Polygons outlining the
boundaries of facilities
devoted to playground
activities.
FEATURE ATTRIBUTE CODING
19
259
26O
261
262
263
Athletic Field
Racetrack
Tennis Court
Area Under Construction
Background Poly
Polygons outlining the
boundaries of facilities
devoted to athletic activities.
Polygons outlining the
boundaries of facilities
devoted to racing activities.
Polygons outlining the
boundaries of facilities
devoted to tennis sporting
activities.
Polygons outlining the
boundaries of facilities
presently under construction,
with intended ultimate use for
parks or recreation.
Polygons not considered
under the category of parks.
or recreation.
FEATURE ATTRIBUTE CODING
20
FEA_CODE:
311
312
313
314
315
316
317
318
MISCELLANEOUS OUTLINES (MO)
FEATURE
DESCRIPTION
Prominent Tree Clumps
Polygons outlining areas
containing significant tree
growth.
Landfills
Polygons outlining facilities
devoted to landfilling
activities.
Quarries
Polygons outlining facilities
devoted to rock mining
activities.
Gravel Pits
Polygons outlining facilities
devoted to gravel or sand
mining.
Rock Outcrops
Polygons outlining areas of
significant rock outcroppings.
Escarpments
Polygons outlining the
boundaries of geologic
escarpments visible on the
surface.
Revetments
Polygons outlining the
boundaries of areas where a
facing of masonry has been
applied to an embankment.
Background Polygon
Polygons not identified under
this coverage.
FEATURE ATTRIBUTE CODING
21
FEA CODE
14
15
31
32
33
34
36
37
66
67
68
69
70
71
72
73
74
75
76
77
78
81
86
87
88
89
91
92
93
94
97
98
99
f00
101
102
106
107
I O8
110
112
115
126
127
131
132
134
136
137
166
167
168
169
TABLE OF CURRENTLY UTILIZED FEATURE CODES
FEATURE
GIS REPRESENTATION
Residential Street Centerline
Residential Street Centerline
Building
Ruin
Trailer Home
Building Site Under Construction
Building Outline Label
Building Background Label
Index Contour
Index Contour Obscured
Index Depression Contour
Index Depression Obscured
Intermediate Contour
Intermediate Obscured
Intermediate Depression
Intermediate Depression Obscured
Index Hidden
Intermediate Hidden
Contour Closure Line
Index Contour
Intermediate Contour
Contour Polygon Area Label
Man-Made Drainage Channel
Flood Gate
Dams
Levees
Flow Arrow
Aerial Pipelines
Levee Profile
Cross Section
Concrete Drain
Culvert
Headwalls
Catch Basins
Underground Pipe
Drainage Structure
Electric Transmission Line
Misc. Utility Lines
Substation
Utility Pole
Electric Transmission Tower
Television/Radio Towers
Arc
Arc
Arc
Arc
Arc
Arc
Polygon
Polygon
Arc
Arc
Arc
Arc
Arc
Arc
Arc
Arc
Arc
Arc
Arc
Arc
Arc
Polygon
Arc
Arc
Arc
Arc
Arc
Arc
Arc
Arc
Arc
Arc
Arc
Arc
Arc
Arc
Arc
Arc
Arc
Point
Point
Point
River/Stream Shorelines
Waterfall
Lakes
Marsh/Swamp
Intermittent Stream Line
Pond
Flow Arrows
Arc
Arc
Arc
Arc
Arc
Arc
Arc
Benchmark
Horizontal Control
Horizontal/Vertical Control
Vertical Control
Point
Point
Point
Point
FEATURE ATTRIBUTE CODING
22
TRINITY RIVER FEASIBILITY STUDY
JURISDICTIONAL DISTRIBUTION OF
ENGINEERING MAPPING DATA SHEETS
~ot~l Sheptp (~o.n, tqjnino
orison oTaunsaiczlon:'50
42 b,d
43 ;l,b
48 a,b,C,d
49 a,c
50 b,d
51 d
52
58 c,d
· ;9 a,b,c,d
60 a,b,d
61 d
62 a,b,c,d
63 a,b,c,d
64 a,b,c,d
65 a
72 a,c
73 a,c,d
74 a,b,c,d
75 a
113 b,d
TRINI'I¥ RIVER CORRIDOR MAPPING AREA
<
/
/
./
(
/
10/0~7
JURISDICTIONAL MAPPING SHEETS
CITY OF IRVING
Scale: 1 inch = 18614 feel
TRINITY RIVER FEASIBILITY STUDY
JURISDICTIONAL DISTRIBUTION OF
ENGINEERING MAPPING DATA SHEETS
~;ot.al '-~''%~ : / i / /
Shep~s
(;o,n. tqining. A
or[ion OT,JUrlSOlCTIon:z~
45 d
46 b
53 C,d
54 a,b,c,d
55 a,b,c,d
56 a,b,c,d
66 c
67 a,c
68 a,b,c,d
69 a,b,c,d
82 a
IRINII'~ RI¥£R GO~RIDOR MAPPING A~£A
l:~ubl¢ Oak
JURISDICTIONAL MAPPING SHEETS
CITY OF LEWISVILLE
/ \
10/08/97 6cale: I inch = 12667 feet
TRINITY RIVER FEASIBILITY STUDY
JURISDICTIONAL DISTRIBUTION OF
ENGINEERING MAPPING DATA SHEETS
TpOt[I Shepts ~o.n. tqininQ,
or[mn oTJunsmcT~on:103
1 a,c,d 20 a,b,c,d
2 b,d 21 b
3 b,d 23 b
4 b,d 24 a,c.d
5 b 25 a,b,c.d
6 a,c,d 26 a,b
7 a,b,c,d 28 a,c,d
8 b,c,d 29 a,b,c,d
9 a,b,c,d 30 a,b,c,d
10 a,b,c 31 a,b,d
11 a,c,d 32 c
12 a,b,c,d 33 a,b.c,d
13 a,b.c,d 34 a,b
14 a,b.c.d 36 a,b,c,d
15 b,c.d 37 a,b,d
16 a,b.c,d 41 c
17 a,c 42 a,c
18c 43 a
19 a,b,c,d
TRINITY RIVER CORRIDOR MAPPING AREA
10/08/97
r
-.......,,, ,.-~ ,~r'~ 'x ',..?
JURISDICTIONAL MAPPING SHEETS
CITY OF FORT WORTH
Scale: I inch =21095 feet
TRINITY RIVER FEASIBILITY STUDY
· JURISDICTIONAL DISTRIBUTION OF
ENGINEERING MAPPING DATA SHEETS
' ~, : / l X'''~ /
~ot~l Shep[s ~o~.tqinin~. ~ ~ -
~O~IOR OTdUrlSOICTIOn:ZU · ~ ~ / ~ * ~,-
.... 5- .... ~- .... ~:-- ~ ~ m --~ ..... 7 ..........
40 b,c,d
47 a,b,c,d
57 C,d
58 a,b,c,d /] '~ ~ ~ '~ ~'-~ ~ -- ~
~-~ I '~ ~ ' ....
TRINI~ RIVER CORRIDOR MAPPING ~EA
............ ~:,,o~_ ~_~ ·
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~ ........ ~ ............... / "4 .................. ~ I~ ~~ . .(z ',, ,.; ' ..............
JURISDICTION~ MAPPING SHEETS
Cl~ OF GRAND PRAIRIE
1~7 ~e: 1 inch =1~7 fe~
TRINITY RIVER FEASIBILITY STUDY
JURISDICTIONAL DISTRIBUTION OF
ENGINEERING MAPPING DATA SHEETS
,,
T~ot.a,I Shep~s Go.n. tqining. ', -
vol[ion
81c ,~ ,~ ,,- L~i \.
82 a
JURISDICTION' MAPPING SHEETS
DENTON COUN~ UNINCORPORATED
1~7 ~: 1 inch =9~1 feet
TRINITY RIVER FEASIBILITY STUDY
JURISDICTIONAL DISTRIBUTION OF
ENGINEERING MAPPING DATA SHEETS
~ota.,I Sheptp (::;o.qtqjning,
onion OTaU nsmcT~on:~
63 b,d
64 b,d
76 a,c
77 a,c
78 a
TRINITY RIVER CORRIDOR MAPPING AREA
JURISDICTIONAL MAPPING SHEETS
CITY OF FARMERS BRANCH
10/08/97 6cale: I inch =9305 feet
TRINITY RIVER FEASIBILITY STUDY
JURISDICTIONAL DISTRIBUTION OF
ENGINEERING MAPPING DATA SHEETS
~ot~l Shept, s (~o,n, tqining.
or'[~on oTdunsaidon:124
52 b,d 92 a,b,c
57 c,d,b 93 b,d
58 b,d 94 a,b,d
59 b 95 a,b,c,d
62 b,d 96 a,b,c,d
63 b 97 b
70 c 98 b,c,d
71 a,c,d 99 a,b,c,d
72 a,b,c,d 100 a,b,c,d
73 a,b,c,d 101 a,b,c,d
74 a,b,c,d 102 a,b,c,d
75 a,b,c,d 103 a,c
76 a,b,c 104 a,c
77 a 105 a,b,c,d
83 c,d? 106 a,b,c,d
84 c,a,d,b 107 a,b,c,d
85 a,b,c,d 108 a,b,c,d
86 c,d,b 109 c
89 b,c,d 110 a,b,c,d
90 a,b,c,d 111 a,b,c
91 a,b,c,d 112 c
TRINITY RIVER CORRIDOR MAPPING AREA
_!
.?
JURISDICTIONAL MAPPING SHEETS
CITY OF DALLAS
10/08/97 Scale: 1 in~ = 25812
TRINITY RIVER FEASIBILITY STUDY
JURISDICTIONAL DISTRIBUTION OF
ENGINEERING MAPPING DATA SHEETS
I I
~ot.a,I Shept, s ~o.n. tqinina ', -
oraon oTuunsaict~on:'34
71 a,c ,
72c,a
98 b,c,d
99a, b,c,d "L~] \-
106 a,b,c,d
111 a,b,c ,,
112c
,
DALLAS COUN~ UNINCORPORATED
1~7 ~e: 1 inch = 171~ lea
~ot.¢l She~s Go,n, ta. inino..
omon o~unsaicaon:zb
64 b,d
65 b,c,d
66 a,b,c,d
67 a,b,c,d
68a, b
'TTc
78 a,c
79 a,c
80 a,c
81 a,c
82 a,b
TRINITY RIVER FEASIBILITY STUDY
JURISDICTIONAL DISTRIBUTION OF
ENGINEERING MAPPING DATA SHEETS
,
TRINITY RIVER CORRIDOR MAPPING AREA
10/I)8/97
JURISDICTIONAL MAPPING SHEETS
CITY OF CARROLLTON
Scale: 1 inch = 13894 feet
//
TRINITY RIVER FEASIBILITY STUDY
JURISDICTIONAL DISTRIBUTION OF
ENGINEERING MAPPING DATA SHEETS
~ot.a,I Shept,s (:;o,n, tqinina
oroon OT,JUnsaiczion:'23
38 d
39 b,d
44c
45 a,b,c,d
46 b
53 a,b,c,d
52 b,d
64 c,d
65 a,b,c,d
66 a,c
TRINITY RIVER CORRIDOR MAPPING AREA
i
JURISDICTIONAL MAPPING SHEETS
Cl'lht OF COPPELL
10/?)8/97 Scale: 1 inch = 10548 feet
FEA_CODE
177
178
181
182
183
186
187
190
236
237
238
240
241
242
243
244
245
246
249
250
252
253
255
256
257
259
260
261
262
263
281
282
291
292
293
294
295
311
312
313
314
315
316
317
318
376
377
378
383
997
999
TABLE OF CURRENTLY UTILIZED FEATURE CODES
FEATURE
GIS REPRESENTATION
Rural Fences
Retaining Wall
Free Standing Walls
Hidden Misc. Structure
Storage Tank
Railroad Track Centerline
RR Bridge
Railroad Crossing Signal
Improved Streets
Alley
Unimproved Streets
Streets Under Construction
Pedestrian Bridge
Bridge
Parking Areas
Tunnel
Bike Paths
Concrete Barrier
Trails
Runways, Taxiways, Aprons
Cemetery
Golf Course
Park
Picnic Area
Playground
Athletic Field
Racetrack
Tennis Court
Area Under Construction
Parks Background Label
Spot Elevations
Water Surface Elevations
State Plane Grid
Neatline
City Boundaries
County Boundaries
Study Limit
Prominent Tree Clumps
Landfills
Quarries
Gravel Pits
Rock Outcroppings
Escarpments
Revetments
Miscellaneous Features Background Label
Water Tank
Water Tower
Storm Water Pump Station
Wastewater Treatment Plant
Miscellaneous Point Features
Manholes
Arc
Arc
Arc
Arc
Arc
Arc
Arc
Point
Arc
Arc
Arc
Arc
Arc
Arc
Arc
Arc
Arc
Arc
Arc
Arc
Arc/Polygon'
Arc/Polygon
Arc/Polygon
Arc/Polygon
Arc/Polygon
Arc/Polygon
Arc/Polygon
Arc/Polygon
Arc/Polygon
Polygon
Point
Point
Arc
Arc
Arc
Arc
Arc
Arc/Polygon
Arc/Polygon
Arc/Polygon
Arc/Polygon
Arc/Polygon
Arc/Polygon
Arc/Polygon
Polygon
Arc
Arc
Arc
Arc
Point
Point
FEATURE ATTRIBUTE CODING
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