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Safety Design and Guardrails

Revised: September 11, 2020
CLEAR ZONE AND SAFETY PLANS
DRAWING REVISION DATE DESCRIPTION
06/28/2019
CLEAR ZONE CRITERIA
 
SAFETY PLAN AT ROADSIDE HAZARDS
05/31/2018
SAFETY PLAN AT SIDEROADS OR PRIVATE DRIVES
06/28/2019
SAFETY PLAN MINIMUM INSTALLATION AT BRIDGE ENDS
06/28/2019
SAFETY PLAN FOR BRIDGE PIERS IN CLEAR ZONE
06/28/2019
SAFETY PLAN FOR BRIDGE ENDS IN MEDIANS
06/28/2019
SAFETY PLAN SAFETY HARDWARE PLACEMENT ON OUTSIDE EDGE
06/28/2019
SAFETY PLAN SAFETY HARDWARE PLACEMENT IN MEDIAN
     

CABLE BARRIER
DRAWING REVISION DATE DESCRIPTION
06/28/2019
CABLE BARRIER PLACEMENT
     

CRASH CUSHIONS
DRAWING REVISION DATE DESCRIPTION
06/28/2019
CRASH CUSHION
06/28/2019
CRASH CUSHION (GATING) BARREL ARRAY
     

 GUARDRAIL DETAILS
DRAWING REVISION DATE DESCRIPTION
06/28/2019
GUARDRAIL DETAILS
06/28/2019
GUARDRAIL AND BLOCK-OUT DETAILS
S-GR31-1B
  GUARDRAIL FASTENING HARDWARE
S-GR31-1C
  GUARDRAIL GENERAL NOTES AND POST DETAILS
     

GUARDRAIL CONNECTIONS
DRAWING REVISION DATE DESCRIPTION
S-GRC-4 02/28/2020 GUARDRAIL CONNECTION TO BRIDGE RAILING CONCRETE PARAPET
S-GRC-5
02/28/2020 GUARDRAIL CONNECTION TO BRIDGE ENDS (TRAILING ENDS)
S-GRC-6
02/28/2020 GUARDRAIL CONNECTION TO BRIDGE ENDS FOR LOW SPEED ROADWAYS
     

GUARDRAIL (SPECIAL CASES)
DRAWING REVISION DATE DESCRIPTION
S-CPW-1
  CURVED PARAPET WALL ≤ 40 M.P.H.
06/28/2019
SPECIAL CASE LONG SPAN GUARDRAIL ONE POST OMITTED
06/28/2019
SPECIAL CASE GUARDRAIL ATTACHMENT TO CONCRETE DECKS
06/28/2019
SPECIAL CASE GUARDRAIL FOOTING
06/28/2019
SPECIAL CASE GUARDRAIL HEIGHT TRANSITION DETAIL
     

GUARDRAIL TERMINALS
DRAWING REVISION DATE DESCRIPTION
06/28/2019
TYPE 12 GUARDRAIL TERMINAL BURIED-IN-BACKSLOPE
06/28/2019
TYPE 38 GUARDRAIL END TERMINAL
06/28/2019
EARTH PAD FOR TYPE 38 AND TYPE 21 TERMINAL
06/28/2019
EARTH PAD FOR TYPE 38 AND TYPE 21 TERMINALS (RETROFIT)
06/28/2019
TYPE 21 GUARDRAIL END TERMINAL
     

GUARDRAIL ANCHORS
DRAWING REVISION DATE DESCRIPTION
06/28/2019
TYPE 12 GUARDRAIL ANCHOR
06/28/2019
GUARDRAIL ANCHOR FOR TYPE 12 TERMINAL (ALTERNATIVE)
06/28/2019
TYPE 13 GUARDRAIL ANCHOR
06/28/2019
IN-LINE GUARDRAIL ANCHOR
06/28/2019
FLARED GUARDRAIL ANCHOR
     

CONCRETE MEDIAN BARRIERS
DRAWING REVISION DATE DESCRIPTION
07/17/2020
32” SINGLE SLOPE CONCRETE BARRIER WALL
S-SSMB-1A   36" SINGLE SLOPE CONCRETE BARRIER WALL
05/01/2020
51” SINGLE SLOPE CONCRETE BARRIER WALL
05/01/2020
51” HALF SIZE SINGLE SLOPE CONCRETE BARRIER WALL
07/17/2020
FLARED SINGLE SLOPE CONCRETE MEDIAN BARRIER WALL (VERTICAL BACK)
05/01/2020
SINGLE SLOPE MEDIAN BARRIER WALL CATCH BASIN DETAIL
06/28/2019
32" CONCRETE SINGLE SLOPE BARRIER WALL WITH SINGLE GUARDRAIL ATTACHMENT
S-SSMB-6A
  36” CONCRETE SINGLE SLOPE BARRIER WALL FOR ATTACHING GUARDRAIL
S-SSMB-6B     DUAL GUARDRAIL ATTACHMENT TO SINGLE SLOPE 36” BARRIER WALL
S-SSMB-6C     SINGLE GUARDRAIL ATTACHMENT TO SINGLE SLOPE 36” BARRIER WALL
S-SSMB-6D     51” CONCRETE SINGLE SLOPE BARRIER WALL FOR ATTACHING GUARDRAIL
S-SSMB-6E     DUAL GUARDRAIL ATTACHMENT TO SINGLE SLOPE 51” BARRIER WALL
S-SSMB-6F     SINGLE GUARDRAIL ATTACHMENT TO SINGLE SLOPE 51” BARRIER WALL
05/01/2020
FOOTING DETAILS FOR OVERHEAD SIGN STRUCTURE 32” MEDIAN BARRIER WALL
05/01/2020
FOOTING DETAILS FOR OVERHEAD SIGN STRUCTURE 51” MEDIAN BARRIER WALL
05/01/2020
SINGLE SLOPE BARRIER WALL FOR GRADE SEPARATED MEDIAN
     

GUARDRAIL MAINTENANCE
DRAWING REVISION DATE DESCRIPTION
06/28/2019 W-BEAM & THRIE BEAM BARRIER RAIL AND RUB RAIL DETAILS
S-GR28-2M
06/28/2019
GUARDRAIL HARDWARE DETAILS
S-GR28-3M
06/28/2019
GUARDRAIL HEIGHT ADJUSTMENT
06/28/2019
GUARDRAIL TERMINAL ANCHOR TYPE 13
S-GR28-5M
06/28/2019
MEDIAN DIVIDER GUARDRAIL
S-GR28-6M
06/28/2019
GUARDRAIL ATTACHMENT TO CONCRETE DECKS
S-GR28-7M
06/28/2019
GUARDRAIL ATTACHMENT TO BRIDGE END DETAILS
S-GRC-1M   GUARDRAIL CONNECTION TO BRIDGE ENDS OR BARRIER WALL
S-GRC-2M   GUARDRAIL CONNECTION TO BRIDGE END FOR LOCAL ROADS (ADT < 2000)
S-GRC-3M   MEDIAN DIVIDER GUARDRAIL TRANSITION TO CONCRETE MEDIAN BARRIER
S-SSMB-6M   GUARDRAIL ATTACHMENT TO EXISTING SINGLE SLOPE CONCRETE BARRIER WALL

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: September 11, 2020 at 12:11 PM