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| RD_ID - Road Identifier |
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The road identifier (RD_ID) is the official ODOT highway number and can be up to 5 characters. It can be found by using many sources, inclusive of, but not limited to, the following: Maintenance Region and District Map, Straightline Charts, State of Oregon Highway Numbers and Routes Map or by using this application.
Please note: All Road ID´s are alphanumeric. The main road or highway identifier is a 3-digit code. Frontage roads and connections are coded by those three digits plus a 2-letter code.
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| RDWY_ID - Roadway Identifier |
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The roadway identifier (RDWY_ID) is a one digit code used in conjunction with the highway number and milepoint to identify the alignment on which the milepoint exists.
Following is a list of valid roadway identifiers:
1 - Milepoint exists on the primary roadway. This will be on the add-mileage alignment of the highway.
2 - Milepoint exists on the non-add alignment.
3 - Milepoint exists on Split roadway (on the add-mileage alignment.)
4 - Milepoint exists on Split roadway (on the non-add mileage alignment.)
5 - Located Line - This milepoint indicates the mileage is on an alignment not yet built or the mileage is on a non-state owned roadway and considered located. This mileage is neither add nor non-add.
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| MLGE_TYPE - Mileage Type |
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Mileage types (MLGE_TYPE) are used to make milepoints unique in areas where there are multiple occurrences of a milepoint on a single highway.
Following is a list of valid mileage type prefixes:
Y - Spur mileage. A highway spur is a short off-shoot of an established highway.
Z - Overlapping mileage. When a road is lengthened in the middle due to realignment, Z-mileage is created.
T - Temporary mileage. Mileage on a temporary traveled route, usually due to a detour or highway under construction.
NOTE: 'X' PREFIX IS NO LONGER USED, IT HAS BEEN REPLACED WITH A ' - ' NEGATIVE SIGN.
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| OVLAP_MLGE_CD - Overlapping Mileage Code |
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Milepoint overlapping code (OVLAP_MLGE_CD) is used only in conjunction with mileage type of 'Z'. It indicates a unique series of overlapping 'Z' mileages. The first chronological occurrence of 'Z' mileage will have a ovlap_mlge_cd of 1, the second chronological occurrence will have a ovlap_mlge_cd of 2, etc.
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| MP_NO - Milepoint Number |
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A number that represents the distance in miles from the original beginning of the highway. This distance, measured along the contours of the traveled roadway, is derived from construction plans, photos, drawings, and field inventory.
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| DUP - Duplicate |
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A number listed in the Dup column on the Highway Report indicates that there are multiple features on the highway at the same mile point AND engineering station. The number also indicates the order in which the features appear along the highway (i.e.: no number - first feature, 10 - second feature, 20 - third feature). There will be nothing listed under Dup if features have the same mile point, but different engineering stations.
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| ENG_STA_DESC_CD - Engineering Stations |
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A code which indicates the unit of measure of related engineering station. Engineering stations may be recorded in meters or feet.
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| RDWY_CD's - Roadway Codes 1 through 5 |
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These are codes made up of five individual fields with independent meanings unless shown to describe a structure, begin/end of highway, or jurisdictional boundaries and are used to show attributes and jurisdiction along the roadway. They indicate the direction and jurisdiction of intersecting roads, culverts, structures, demographic boundaries and much more. There is a positional centerline which represents the center of that roadway.
The roadway codes serve as visual guides of intersections, connections, boundaries and structures along a road. The roadway field consists of five bytes or positions, starting with position 1 on the left. Reading up the page, as milepoints increase, positions 1 and 2 refer to the left hand side of the road. Positions 4 and 5 refer to the right hand side of the road. Position 3 is not specific to one side of the road. All five positions work together to give a complete picture of the roadway at a given milepoint.
There are two sets of roadway codes which have a specific purpose and do not comply with the values below, they are BB|BB and EE|EE which represent the beginning and ending of a highway respectively.
RDWY_CD_1 & RDWY_CD_5
S = | = S
Codes in positions 1 and 5 define "jurisdiction" of an intersecting road or a boundary. Some jurisdiction codes, such as # for railroad, or T for trail, simply identify a type of intersecting attribute, rather than jurisdiction.
Roadway Code 1 & 5 Definitions
A - State Land Board jurisdiction
B - BLM road or BLM park
C - City street or city limit
D - Frontage road on right of way
E - Connections on right of way
F - National Forest Service road or national forest boundary
G - Wildlife refuge boundary
H - City park boundary
I - National Indian Service rd. or Indian Res. boundary
J - Public road or public jurisdiction
K - County road or county park
L - Locale or community
M - National Park road or National Park boundary
N - U.S. miscellaneous road
O - Overcrossing summit, gasline, pipeline, state line, etc.
P - Private road
R - State forest road or State forest boundary
S - State road or State park boundary
T - Foot or bike trail
U - Urban or urbanized boundary
V - Tunnel (o-xing, u-xing, or jct. only)
W - State wayside boundary
X - Planned or future attribute
Z - Unknown jurisdiction of named attribute
# - Railroad
RDWY_CD_2 & RDWY_CD_4
S = | =S
Codes in positions 2 and 4 supply further information about the 'jurisdiction' field, such as whether the attribute is being intersected at grade, or is passing under or over the road. Also, whether the road is entering or leaving a jurisdictional boundary.
Roadway Code 2 & 4 Definitions
A - Boundary angles toward centerline
C - Boundary continues on right-of-way
E - Entering (boundary, common alignment, tunnel, etc.)
G - Gate across road
L - Leaving (boundary, common alignment, tunnel, etc.)
O - The road is crossing over something
U - The road is crossing under something
Z - An undefined attribute on the right of way
= - The road is intersecting something at grade
/ - The roadway is ahead or behind the milepoint
@ - Boundary touches right of way or centerline
RDWY_CD_3
S = | = S
The position 3 codes are not road side specific. They indicate whether the road is on the ground or on a structure, whether it is crossing a waterway, or passing through a tunnel, etc.
Roadway Code 3 Definitions
A - The indicated roadway is ahead
B - The indicated roadway is behind the milepoint
C - Named boundary is on, or touches centerline
E - Milepoint equation at this milepoint
G - On a structure, named boundary runs down centerline
H - An occurrence of an HOV (High Occupancy Vehicle) Lane.
P - In a tunnel, named boundary runs down centerline
S - The road is starting to travel on a street named in description.
T - The road is in a tunnel
W - The road is crossing a waterway
1 - Begin/end common alignment chargeable mileage
2 - Begin/end common alignment non-chargeable mileage
3 - Indicates a 3 color traffic signal
| - Road is at grade
+ - Road is on a structure
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| Structures |
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Another set of codes is used to define the type of structure a road is passing over. When a single structure symbol is shown the milepoint will indicate the center of the structure. Structures 500' or more will always have a symbol at the beginning, middle and end.
A 'W' may be exchanged for the '+' in position 3 to indicate the center of the waterway crossed.
Structure Code Meanings
-)+(-
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Culvert. Less than 72". Dimensions always in inches.
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-|+|-
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Minor structure. 6' to 20'. Dimensions always in feet.
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@|+|@
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Cattlepass, pedestrian tunnel, or equipment pass. Less than 20'.
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=|+|=
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Major structure. Greater than 20' and less than 500' in length.
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||+||
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Begin/end structure
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>|+|<
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Center of structure 500' or longer.
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-|R|-
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Structure is located in the Right of Way, to the right of the highway in the add direction.
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-|L|-
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Structure is located in the Right of Way, to the left of the highway in the add direction.
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The length of a structure greater than 6’ appears to the right of the symbol, and is followed by the bridge number. Rather than bridge numbers, culverts may have only abbreviations representing the types of drainage structures beneath the road. The abbreviations below appear to the right of the minor structure and culvert symbols.
Structure Types
ALBC Aluminum Box Culvert
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RCDK Reinforced Conc. Deck
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ARCH Arch Pipe
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RCDG Reinf. Conc. Deck Girder
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BOX Box
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RCMB Rein. Conc. Multi Beam
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CCL Conc. Culvert
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RCDP Reinf. Conc. Deck Panel
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CIP Corrugated Iron Pipe
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RCRF Reinf. Conc. Rigid Frame
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CJP Corrugated Joint Pipe
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SIPH Siphon
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CMP Corrugated Metal Pipe
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SLAB Slab
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C.P. Concrete Pipe Casing
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SPAP Structural Plate Arch
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| CPP Corrugated Polyethylene Pipe |
STIB Steel ´I´ Beam
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CULV Culvert
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STPI Steel Pipe on Concrete
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FLUM Flume
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STPP Structural Plate Pipe
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FRTR Frame Trestle
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TBC Timber Box Culvert
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MLPP Multiplate Pipe
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TBR Timber
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PIPE Pipe
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TBRT Timber Treated
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RC Reinforced Concrete
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TBRU Timber Untreated
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RCCL Reinforced Conc. Culv.
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TDT Timber Drainage Tunnel
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RCBC Reinforced Conc. Box Culv.
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Overcrossings (greater than 500 ft.)
307.70
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||+||
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END STRUCTURE
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307.59
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>|W|<
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1177' 01377B OREGON SLOUGH
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307.46
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BEG. STRUCTURE
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Structures greater than 500' show a beginning, middle and end. The center milepoint carries the structure number and length. The beginning and ending milepoints carry the structure name.
Major Structures (Between 20 ft. and 499 ft.)
182.60
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=|W|=
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0439' 00624A Umatilla River
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45.75
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=|W|=
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0020’ 00493 2-RCBC 10'X06' OLD SETTLERS SLOUGH
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11.23
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=|+|=
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0020’ 02014A RCRF 20’
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66.19
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=|R|=
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0090’ 07492 Bridge Creek (Mitchell Access)
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Above is an example of a major structure where the bridge is crossing a waterway. The milepoint of the structure is also the center of the waterway, which is why the 'W' appears in position 3 at the same milepoint.
Below is another major structure. This bridge is crossing over railroad tracks instead of water. Note the use of a duplicate milepoint (suffix) to show the type of attribute being crossed.
183.70
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10
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#O+O#
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U.P.R.R
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183.70
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=|+|=
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0187' 01628
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Minor Structures (Between 6 ft. and 19 ft.)
28.80
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-|+|-
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0008’ 18656 ARCH 08’X06’
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22.98
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@|W|@
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0009’ 03081 MLPP BEERMAN CREEK & CATTLEPASS
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103.94
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-|L|-
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0012’ 0M059 2-RCBC 06’X06’ SALMON CREEK
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Culverts (Between 36 in. and 72 in.)
182.60
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-)W(-
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CMP 36"X036" MILL CREEK
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9.09
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@)+(@
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RCBC 60"X72" CATTLEPASS
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The dimensioning for the types of structures, culverts, and tunnels is as follows:
- Bridges are measured along the centerline of the roadway traveled from center of end bent to center of end bent.
- Culverts, which include concrete box culverts, are measured width by height of the inside diameter.
- Tunnels are measured by the length of the tunnel along the roadway traveled.
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| MP_DESC - Milepoint Description |
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This field describes the attribute found at a given highway milepoint. Also included in description fields are project numbers, applicable comments about various attributes, names of intersecting roads, bridge numbers and lengths, and sizes of drainage structures.
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| Median Codes |
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The portion of a divided highway separating the traffic moving in opposite directions. The median width is expressed as the dimension between the through-lane edges and includes the inside shoulders, if any.
Code describing the type of median on a divided road. The valid codes are as follows:
0 Road is not physically divided
1 Painted-greater than or equal to 4 feet
2 Curbed
3 Vegetation
4 Gravel
5 Rail
6 Barrier
7 Jiggle bars (raised diagonal multiple ´speed bumps´)
8 HPMS Couplet
9 Interchange
Median Width
This is the median width, measured horizontally, rounded to the nearest foot. If the highway is divided the median width is measured from fog line to fog line (including shoulders) and recorded only on the add mileage direction. If the median width is known to be less than 99´, but has not been measured, median width will be shown as 099. If median width is known to be greater than 99´, but has not been measured, median width will be shown as 999´.
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| Common Alignment |
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Any length of roadway upon which more than one state highway is designated.
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| Pavement Types |
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DESCRIPTION
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Wear Tbl Flag
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Pave Base Flag
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Base Matl Flag
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Subbase Matl Flag
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BLANK PAVEMENT TYPE (EMPTY)
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Y
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Y
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Y
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Y
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A
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ASPHALT CONCRETE, "A" MIX
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Y
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Y
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N
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N
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AE
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AGGREGATE WITH GEOTEXTILE
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N
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N
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N
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Y
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AG
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AGGREGATE BASE
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N
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N
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Y
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Y
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AP
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ASPHALT TREATED PERMEABLE
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N
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Y
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Y
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N
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AT
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ASPHALT TREATED BASE
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N
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N
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Y
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N
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AU
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ASPHALT CONCRETE, UNKNOWN
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Y
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Y
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Y
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N
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B
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ASPHALT CONCRETE, "B" MIX
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Y
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Y
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N
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N
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C
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ASPHALT CONCRETE, "C" MIX
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Y
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Y
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N
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N
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CE
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CEMENT TREATED EXISTING RDWY MATERIALS
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N
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N
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Y
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N
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CH
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EMULSIFIED ASPH. CHOKE SEAL
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Y
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N
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N
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N
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CP
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COLD-IN-PLACE RECYCLE
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Y
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Y
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N
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Y
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CR
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CONTINUOUSLY REINFORCED CONCRETE
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Y
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Y
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N
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N
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CS
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CHIP SEAL
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Y
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Y
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N
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N
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CT
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CEMENT TREATED BASE
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N
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N
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Y
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Y
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CU
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PORTLAND CEMENT CONCRETE, UNKNOWN
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Y
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Y
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Y
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N
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D
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ASPHALT CONCRETE, "D" MIX
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Y
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Y
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N
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N
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E
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ASPHALT CONCRETE, "E" MIX
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Y
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Y
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N
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N
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EA
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EMULSIFIED ASPHALT CONCRETE
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Y
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Y
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N
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N
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F
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ASPHALT CONCRETE, "F" MIX
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Y
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Y
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N
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N
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FC
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FAT CONCRETE BASE
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N
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N
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Y
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N
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G
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GRAVEL
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Y
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N
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N
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N
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GD
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GRINDINGS FROM COLD PLAINING OR MILLING
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N
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N
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Y
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N
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GE
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GEOTEXTILE
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N
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N
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N
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Y
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HR
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HOT-IN-PLACE RECYCLE
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Y
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N
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N
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N
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J
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JOINTED CONCRETE
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Y
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N
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N
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N
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JR
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JOINTED REINFORCED CONCRETE
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Y
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N
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N
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N
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K
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KNOWN TYPE
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N
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N
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Y
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N
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L
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LEVELING COURSE
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Y
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Y
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N
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N
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LC
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LEAN CONCRETE BASE
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N
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N
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Y
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N
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LM
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LATEX MODIFIED CONCRETE
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Y
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N
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N
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N
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LT
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LIME TREATED BASE
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N
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N
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N
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Y
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M
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BITUMINOUS MACADAM
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Y
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Y
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N
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N
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OB
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OPEN GRADED BITUMINOUS
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N
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N
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Y
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N
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OD
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OTHER DIRT
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Y
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N
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N
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N
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OG
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OPEN GRADED AGGREGATE BASE
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N
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N
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Y
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N
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PA
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PLANT MIX AGGREGATE
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N
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N
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Y
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Y
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PB
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PLANT MIX BITUMINOUS
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N
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Y
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Y
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N
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PC
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POLYMER MODIFIED CHIPSEAL
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Y
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N
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N
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N
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PE
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POLYMER MODIFIED EMULSIFIED AC
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Y
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N
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N
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N
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PG
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PAVING GEOTEXTILE
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N
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Y
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Y
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N
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PM
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POLYMER MODIFIED ASPHALT CONCRETE
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Y
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N
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N
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N
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R
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RECYCLE
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Y
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Y
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N
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N
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RA
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RUBBERIZED AC
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Y
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Y
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N
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N
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S
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SELECT MATERIAL
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N
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N
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N
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Y
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SA
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SAMI
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N
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Y
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N
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N
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SL
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SLURRY SEAL
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Y
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N
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N
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N
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SM
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STONE MATRIX ASPHALT
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Y
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N
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N
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N
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SS
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SAND SEAL
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Y
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N
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N
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N
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U
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UNKNOWN
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Y
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Y
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Y
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Y
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UH
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UNKNOWN HISTORIC BASE
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N
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N
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Y
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N
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Z
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OIL MAT
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Y
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Y
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N
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| CAP_TYPE_CD - Capacity Type Code |
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The capacity type codes (CAP_TYPE_CD) are two letter codes used to identify the type of capacity information being presented.
Following is a list of valid capacity type codes:
LA - Lane in add direction
LN - Lane in non-add direction
PK - Parking
PS - Passing
SA - Speed in curves add direction
SN - Speed in curves non-add direction
SP - Beginning speed limits
TR - Terrain
NOTE: THE LANE INFORMATION MAY BE DATED. FOR CURRENT LANE INFORMATION PLEASE SEE THE HIGHWAY SUMMARY REPORT.
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| Contract Numbers |
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Most contract numbers are entered into the ITIS database using ODOT five digit contract numbers. However, many outsourced projects have a key number but no contract number assigned. To ensure these projects have a unique number when entered into ITIS, the key number is used with a prefix of "KEY". Example: If there is no contract number, but the key number is 12404, the project will be entered as "KEY12404".
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