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COVID-19 INFORMATION

Roadway Design Standards

Revised: August 16, 2021
STANDARD ROADWAY DRAWINGS TITLE SHEET
DRAWING REVISION DATE DESCRIPTION
RD-TP-1
09/26/2016
STANDARD ROADWAY DRAWINGS TITLE SHEET
     

STANDARD ABBREVIATIONS AND LEGENDS
DRAWING REVISION DATE DESCRIPTION
RD-A-1  
02/20/2020
STANDARD ABBREVIATIONS A THROUGH L
RD-A-2
  STANDARD ABBREVIATIONS M THROUGH Z
RD-L-1  
02/20/2020
STANDARD LEGEND
RD-L-1A   STANDARD LEGEND
RD-L-2   02/20/2020
STANDARD LEGEND FOR UTILITY INSTALLATIONS
RD-L-3   02/20/2020
STANDARD LEGEND FOR SIGNALIZATION AND LIGHTING
RD-L-4  
02/20/2020
STANDARD LEGEND FOR SIGNALIZATION AND LIGHTING
RD-L-5   02/20/2020
STANDARD LEGEND FOR EROSION PREVENTION AND SEDIMENT CONTROL
RD-L-6   02/20/2020
STANDARD LEGEND FOR EROSION PREVENTION AND SEDIMENT CONTROL
RD-L-7   02/20/2020
STANDARD LEGEND FOR EROSION PREVENTION AND SEDIMENT CONTROL
RD-L-8   02/20/2020
STANDARD LEGEND FOR NATURAL STREAM DESIGN
     

TYPICAL SECTIONS AND DESIGN CRITERIA
DRAWING REVISION DATE DESCRIPTION
RD01-SE-2 10/15/2002 URBAN SUPERELEVATION DETAILS
RD01-SE-3 10/15/2002 RURAL SUPERELEVATION DETAILS
RD01-TS-1 02/05/2016 DESIGN STANDARDS FOR LOCAL ROADS AND STREETS
RD01-TS-1A 02/05/2016 DESIGN STANDARDS FOR LOW-VOLUME LOCAL ROADS (ADT ≤ 400)
RD01-TS-2 03/16/2017 DESIGN STANDARDS FOR COLLECTOR ROADS AND STREETS
RD01-TS-2A 10/15/2002 DESIGN STANDARDS 4 AND 6 LANE COLLECTOR HIGHWAYS WITH DEPRESSED MEDIANS
RD01-TS-2B 10/15/2002 DESIGN STANDARDS 4 AND 6 LANE COLLECTOR HIGHWAYS WITH FLUSH MEDIANS
RD01-TS-3 10/15/2002 DESIGN STANDARD FOR 2-LANE ARTERIAL HIGHWAYS
RD01-TS-3A 10/15/2002 DESIGN STANDARDS 4 AND 6 LANE ARTERIAL HIGHWAYS WITH DEPRESSED MEDIANS
RD01-TS-3B 10/15/2002 DESIGN STANDARDS 4 AND 6 LANE ARTERIALS WITH INDEPENDENT ROADWAYS
RD01-TS-3C 10/15/2002 DESIGN STANDARDS 4 AND 6 LANE ARTERIAL HIGHWAYS WITH FLUSH MEDIANS
RD01-TS-4 07/23/2013 DESIGN STANDARDS 1 AND 2 LANE RAMPS
RD01-TS-5 10/15/2002 DESIGN STANDARDS FREEWAYS WITH DEPRESSED MEDIANS
RD01-TS-5A 10/15/2002 DESIGN STANDARDS FREEWAYS WITH INDEPENDENT ROADWAYS
RD01-TS-5B 10/15/2002 DESIGN STANDARDS FREEWAYS WITH MEDIAN BARRIER
RD01-TS-5W   TYPICAL DETAIL FOR INSIDE LANE WIDENING OF FREEWAYS
RD01-TS-6 01/07/2019 TYPICAL CURB AND GUTTER SECTIONS WITH SHOULDER
RD01-TS-6A 01/07/2019 TYPICAL CURB AND GUTTER SECTIONS WITHOUT SHOULDER
RD01-TS-6B   TYPICAL CURB AND GUTTER FOR HIGH SPEED SUBURBAN ROADWAYS
RD01-TS-7 10/15/2002 DESIGN STANDARDS 2-LANE HIGHWAY WITH CONTINUOUS 2-WAY LEFT-TURN LANE
RD01-TS-7A 01/07/2019 DESIGN STANDARDS 2-LANE CURB AND GUTTER WITH CONTINUOUS 2-WAY LEFT-TURN LANE
RD01-TS-9 01/07/2019 DESIGN STANDARDS FOR SINGLE LANE URBAN AND RURAL ROUNDABOUTS
RD01-TS-10 01/07/2019 DESIGN STANDARDS FOR MULTI-LANE URBAN AND RURAL ROUNDABOUTS
     

RD11 TYPICAL SECTIONS AND DESIGN CRITERIA
DRAWING REVISION DATE DESCRIPTION
RD11-SE-1   TRANSITION AND CROSS SLOPE DETAILS
RD11-SE-2   SUPERELEVATION TRANSITION DETAILS FOR UNDIVIDED ROADWAYS
RD11-SE-2A   SUPERELEVATION TRANSITION SECTIONS FOR UNDIVIDED ROADWAYS
RD11-SE-3   SUPERELEVATION TRANSITION DETAILS FOR DIVIDED ROADWAYS
RD11-SE-3A   SUPERELEVATION TRANSITION SECTIONS FOR DIVIDED ROADWAYS
RD11-TS-1
06/28/2019 DESIGN STANDARDS FOR LOW-VOLUME ROADS
RD11-TS-1A   06/28/2019 DESIGN STANDARDS FOR LOCAL ROADS AND STREETS
RD11-TS-2   DESIGN STANDARDS FOR COLLECTORS, 2-LANE ROADS AND STREETS
RD11-TS-2A   DESIGN STANDARDS FOR COLLECTOR HIGHWAYS WITH DEPRESSED MEDIAN (4 AND 6 LANE)
RD11-TS-2B   DESIGN STANDARDS FOR COLLECTOR HIGHWAYS WITH FLUSH MEDIAN (4 AND 6 LANE)
RD11-TS-3   DESIGN STANDARD FOR ARTERIAL HIGHWAYS (2-LANE)
RD11-TS-3A
06/28/2019 DESIGN STANDARDS FOR ARTERIAL HIGHWAYS WITH DEPRESSED MEDIAN (4 AND 6 LANE)
RD11-TS-3B   DESIGN STANDARDS FOR ARTERIAL HIGHWAYS WITH FLUSH MEDIAN (4 AND 6 LANE)
RD11-TS-3C   DESIGN STANDARDS FOR ARTERIALS WITH INDEPENDENT ROADWAYS (4 AND 6 LANE)
RD11-TS-4   DESIGN STANDARDS FOR ARTERIAL AND FREEWAY RAMPS (1, 2 AND 3 LANE)
RD11-TS-5
06/28/2019 DESIGN STANDARDS FOR FREEWAYS WITH DEPRESSED MEDIAN (4 AND 6 LANE)
RD11-TS-5A   DESIGN STANDARDS FOR FREEWAYS WITH INDEPENDENT ROADWAYS (4 AND 6 LANE)
RD11-TS-5B   DESIGN STANDARDS FOR FREEWAYS WITH MEDIAN BARRIER (4 AND 6 LANE)
RD11-TS-5W  (IB 21-13) 06/15/2021 TYPICAL DETAILS FOR INSIDE LANE WIDENING OF FREEWAYS
RD11-TS-6   TYPICAL CURB & GUTTER SECTIONS WITH SHOULDERS AND WITH GRASS STRIPS
RD11-TS-6A   TYPICAL CURB & GUTTER SECTIONS WITHOUT SHOULDERS AND WITH GRASS STRIPS
RD11-TS-6B   TYPICAL CURB AND GUTTER SECTIONS WITH SHOULDERS AND WITHOUT GRASS STRIPS
RD11-TS-6C   TYPICAL CURB AND GUTTER SECTIONS WITHOUT SHOULDERS AND WITHOUT GRASS STRIPS
RD11-TS-7 07/17/2020 DESIGN STANDARDS 2-LANE CURB & GUTTER WITH CONTINUOUS 2-WAY LEFT-TURN LANE WITHOUT GRASS STRIPS
RD11-TS-7A 07/17/2020 DESIGN STANDARDS 2-LANE CURB & GUTTER WITH CONTINUOUS 2-WAY LEFT-TURN LANE WITH GRASS STRIPS
RD11-TS-7B 07/17/2020 DESIGN STANDARDS 2-LANE HIGHWAYS WITH CONTINUOUS 2-WAY LEFT-TURN LANE
RD11-TS-9   DESIGN STANDARDS FOR SINGLE LANE URBAN AND RURAL ROUNDABOUTS
RD11-TS-10   DESIGN STANDARDS FOR MULTl-LANE URBAN AND RURAL ROUNDABOUTS
     

RD11 SLOPE DEVELOPMENT AND RUNOFF LENGTHS
DRAWING REVISION DATE DESCRIPTION
RD11-LR-1   MINIMUM RUNOFF LENGTHS (Lr) FOR URBAN HIGHWAYS
RD11-LR-2   MINIMUM RUNOFF LENGTHS (LR) FOR RURAL HIGHWAYS
RD11-S-11   DESIGN AND CONSTRUCTION DETAILS FOR ROADSIDE SLOPE DEVELOPMENT
RD11-S-11A   ROADSIDE DITCH DETAILS FOR DESIGN AND CONSTRUCTION
RD11-S-11B   DESIGN AND CONSTRUCTION DETAILS FOR ROCK CUT SLOPE AND CATCHMENT
RD11-SA-1   SAFETY APPROACH TO UNDERPASSES GRADING DESIGN AND SLOPE PROTECTION
     

RD11 INTERSECTION SIGHT DISTANCE
DRAWING REVISION DATE DESCRIPTION
RD11-SD-1   INTERSECTION SIGHT DISTANCE DESIGN AND GENERAL NOTES
RD11-SD-2   INTERSECTION SIGHT DISTANCE LANDSCAPE AND OBSTRUCTION
RD11-SD-3   INTERSECTION SIGHT DISTANCE 2-LANE ROADWAYS
RD11-SD-4   INTERSECTION SIGHT DISTANCE 4-LANE AND 5-LANE UNDIVIDED ROADWAYS
RD11-SD-5   INTERSECTION SIGHT DISTANCE 4-LANE DIVIDED HIGHWAYS
RD11-SD-6   INTERSECTION SIGHT DISTANCE 6-LANE DIVIDED HIGHWAYS
RD11-SD-7   INTERSECTION SIGHT DISTANCE FOR PASSIVE RAILROAD HIGHWAY GRADE CROSSINGS
     

RD01 SLOPE DEVELOPMENT
DRAWING REVISION DATE DESCRIPTION
RD01-S-11 04/04/2003 DESIGN AND CONSTRUCTION DETAILS FOR ROADSIDE SLOPE DEVELOPMENT
RD01-S-11A 10/15/2002 ROADSIDE DITCH DETAILS FOR DESIGN AND CONSTRUCTION
RD01-S-11B 10/15/2002 DESIGN AND CONSTRUCTION DETAILS FOR ROCK CUT SLOPE AND CATCHMENT
RD01-SA-1 10/15/2002 SAFETY APPROACH TO UNDERPASSES GRADING DESIGN AND SLOPE PROTECTION
     

RD01 INTERSECTION SIGHT DISTANCE
DRAWING REVISION DATE DESCRIPTION
RD01-SD-1   INTERSECTION SIGHT DISTANCE DESIGN AND GENERAL NOTES
RD01-SD-2   INTERSECTION SIGHT DISTANCE LANDSCAPE AND OBSTRUCTION
RD01-SD-3   INTERSECTION SIGHT DISTANCE 2-LANE ROADWAYS
RD01-SD-4   INTERSECTION SIGHT DISTANCE 5-LANE AND 4-LANE UNDIVIDED ROADWAYS
RD01-SD-5   INTERSECTION SIGHT DISTANCE 4-LANE DIVIDED HIGHWAYS
RD01-SD-6   INTERSECTION SIGHT DISTANCE 6-LANE DIVIDED HIGHWAYS
RD01-SD-7   INTERSECTION SIGHT DISTANCE FOR PASSIVE RAILROAD HIGHWAY GRADE CROSSINGS
     

UNDERDRAINS
DRAWING REVISION DATE DESCRIPTION
RD-UD-3  
06/28/2019
UNDERDRAIN DETAILS
RD-UD-4  
06/28/2019
UNDERDRAIN LATERAL DETAILS
RD-UD-6
06/28/2019
LATERAL UNDERDRAIN ENDWALL DETAIL FOR 1:1 & 2:1 SLOPES
RD-UD-7
06/28/2019
LATERAL UNDERDRAIN ENDWALL DETAIL FOR 3:1 & 4:1 SLOPES
RD-UD-8
06/28/2019
LATERAL UNDERDRAIN ENDWALL DETAIL FOR 5:1 SLOPES
RD-UD-9
06/28/2019
LATERAL UNDERDRAIN ENDWALL DETAIL FOR 6:1 SLOPES
     

If you find any mistakes, missing information or have a question, contact:
TDOT CADD Support
1200 James K. Polk Building
Nashville, TN 37243-1402
TDOT.CADDSupport@tn.gov

This Page Last Updated: August 16, 2021 at 12:45 PM