ATTACHMENT F.pdf

REFERENCES

WORK ZONE TRAFFIC

CONTROL ENGINEER

4·27·18 WEM

REVISED fl AGGING

OPERATIONS NOTE 1

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DESIGN STANDARDS OFFICE

955 PARK STREET

ROOM 405

COLUMBIA. SC 29201

STANDARD DRAWING

FLAGGING

OPERATIONS

TWO-LANE TWO-WAY

PRIMARY &

SECONDARY ROUTES

610-005-00 EFFECTIVE lEfTING DAT[ I JAN 2019

FLAGGING OPERATIONS

GENERAL NOTES

C ALL NOTES. SPECIFICATIONS AND REQUIREMENTS ON THIS STANDARD DRAWING APPLY TO ALL SUBSEQUENT STANDARD DRAWINGS REGARDING FLAGGING OPERATIONS UNLESS OTHERWISE NOTED >

FLAGGING OPERATIONS -

I. KEY FEATURES RELEVANT TO FLAGGING OPERATIONS'

APPROACH TAPER • THIS IS A ONE·LANE TWO·WAY TAPER PLACED IN THE TRAVEL LANE WHERE THE WORK ACTIVITY TAKES Pl.ACE. THIS TAPER PRECEDES THE BUFFER SPACE ANO THE WORK ACTIVITY AREA. THE LENGTH Of THIS TAPER MAY VARY FROM 50 FEET TO 100 FEET. INST All ANO MAINTAIN NO LESS THAN FIVE (51 TRAFFIC CONTROL DEVICES EQUALLY SPACED AT 10" TO 25' INTERVALS AS NECESSARY TO CORRESPOND WITH THE LENGTH or THE TAPER.

QOWNSTREAM TAPER THIS TAPER. PLACED IN THE TRAVEL LANE WHERE THE WORK ACTIVITY TAKES PLACE, FOLLOWS THE WORK ACTIVITY AREA ANO SERVES AS THE TERMINATION AREA FOR THE CLOSURE OF THE TRAVEL LANE. THE LENGTH or HIS TAPER MAY VARY FROM 50 FEET TO 100 FEET. INSTALL ANO MAINTAIN NO LESS THAN FIVE <5> TRAFFIC CONTROL DEVICES IN THIS TAPER.

FLAGGER STATION • THIS IS THE SPECIFIC LOCATION Of THE fLAGGER.

CLOSED LANE FLAGGER • THIS fLAGGER IS STATIONED ADJACENT TO TH( FIRST TRAFFIC CONTROL DEVICE IN THE APPROACH TAPER WHO CONTROLS THE TRAFFIC TH"T REQUIRES RELOC"TION FROM THE TRAVEL LANE BEING CLOSED TO TRAFFIC.

OPEN LANE FLAGGER • THIS fLAGGER IS STA HONED 100 FEET BE YONO THE LAST TRAFFIC CONTROL DEVICE IN THE DOWNSTREAM TAPER WHO

CONTROLS THE TRAIFFIC OPERATING IN THE TRAVEL LANE REMAINING OPEN TO TRAFFIC.

SIPE ROA() FUGGER • THIS FLAGGER IS STATIONED ON AN INTERSECTING SIDE ROAD ANO CONTROLS THE SIDE ROAD TRAFrlC ENTERING INTO

THE ROADWAY WHERE THE WORK ACTIVITY AREA IS LOCATED.

BUFFER SPACE • THIS AREA IS LOCATED BETWEEN THE DOWNSTREAM ENO OF THE N>PROACH TN'ER AND THE NEAREST LIMITS Of THE WORK ACTIVITY AREA ANO MAY PROVIDE SOME RECOVERY SPACE FOR AN ERRANT VEHICLE. THE PRESENCE Of PERSONNEL. TOOLS. MATERIAl.S, EQUIPMENT, WORK VEHICLES, ETC. WITHIN THE LIMITS or THE BUFFER SPACE IS PROHIBITED. HOWEVER, WHEN THE MIN MUM DISTANCE REQUIREMENTS FOR THE BUFFER SPACE ARE UNAVAILABLE, A TRUCK MOUNTED ATTENUATOR MAY TEMPORARILY ENCROACH UPON THE BUFFER SPACE IN ACCORDANCE WITH THE REQUIREMENTS SPECIFIED IN THE SECTION BELOW ENTITLED. "BUft(R SPACE", WHEN

APPROVED BY THE ENGINEER.

WORK ACTIVITY AREA • PERSONNEL, MATERIALS, EQUIPMENT, WORK VEHICLES. ETC. ARE PRESENT WlTHN THIS AREA TO CONDUCT THE WORK.

LIMITS of the WORK ACTIVITY AR[A THIS IS THE BOUNDARY Of THE WORK ACTIVIT y AREA FIRST ENCOUNTERED, FROM EITHER DIRECTION, BY "40TORISTS PASSING BY THE WORK ACTIVITY AREA IN THE ADJACENT TRAVEL LANE OPEN TO TRAFF'IC AND CONTROLLED BY THE fLAGGERS.

APPROACH LANE • TRAF'FIC APPROACHES AN INTERSECTION OR A SPECIFIC LOCATION IN THS TRAVEL LANE.

DEPARTURE LAN[ • TRAF'FIC DEPARTS FROM AN INTERSECTION OR A SPt:CIF'IC LOCATION IN THIS TRAVEL LANE.

MAINLINE APPRQACH THIS lS AN APPROACH TO THE WORK ACTIVITY AREA ON THE ROADWAY WHERE THE WORK ACTIVITY AREA IS LOCATED.

SIDE ROMlS • THESE ROMlS INTERSECT THE ROADWAY ON WHICH THE WORK ACTIVITY AREA IS LOCATED.

LIMITS of the INTERSECTION • THE LIMITS or OR THE PHYSICAi. AREA WlTHN AN INTERSECTION IS DEFINED BY THE LOCATION or STOP BARS WHEN PRESENT, WHEN STOP BARS ARE ABSENT, THE LIMITS Of OR THE PHYSICAi. AREA WITHIN AN INTERSECTION IS 0£f1NEO BY THE LOCATION POINTS WHERE THE CORNER RADa BETWEEN ADJACENT ROADWAY APPROACHES TIE TO THE EDGE or PAVEMENT OR THE EDGE or TRAVEL LANE ADJACENT TO THE EDGE or PAVEMENT or EACH ROADWAY.

2. INST Al.L, CONDUCT AND MAINTAIN FLAGGING OPERATIONS IN ACCORDANCE WITH THE ST ANOARD SPECIFICATIONS, THE ST ANOARD DRAWINGS, THE MUTCD ANO THE "SOUTH CAROLINA fLAGGER"S HANDBOOK" UNLESS OTHERWISE DIRECTED BY THE DEPARTMENT. INSTALL ALL SIGNS RELATIVE TO A FLAGGING OPERATION PRIOR TO INITIATION Of THE OPERATION AND REMOVE OR COVER Al.L SIGNS IMMEDIATELY l.f'ON TERMINATION or THE OPERATION. EQUIP EACH F'LAGGER WITH A 24" x 24" STOP/SLOW PADDLE MOUNTED ON A RIGID HANDLE WITH A MINIMUM LENGTH or 7 FEET. THE DEPARTMENT PROHBITS THE USE Of FLAGS EXCEPT DURING EMERGENCY SITUATIONS.

3. LANE CLOSURES FOR FLAGGING OPERATIONS AR£ RESTRICTED TO A MAXIMUM DISTANCE or 2 MILES UNLESS OTHERWISE APPROVED BY THE ENGINEER.

THE WORK LIMITS WILL COMPLY WITH THE CONTRACT AND SHAl.L REOUIRE THE ENGINEER'S APPROVAL PRIOR TO BEGINNING THE WORK,

4. INSTALL AND MAINTAIN THE PROPER ARRAY or ADVANCE WARNING SIGNS FOR EACH "MAINLINE APPROACH'" WHEN A FLAGGING OPERATION IS IN Pl.ACE AND ACTIVE. WHEN NECESSARY TO RELOCATE THE "fLAGGER STATION" WHLE ACTIVELY MAINTAINNG THE FLAGGING OPERATION, INSTALL AN ADOlTIONAL ARRAY or ADVANCE WARNING SIGNS AT THE LOCATION RELATIVE TO THE NEW "fLAGGER STATION" AND REMOVE THE ORIGINAL ARRAY or ADVANCE WARNING SIGNS IMMEDIATEL y UPON COMPLETION or THE RELOCATION or THE F'LAGGER TO THE NEW "FLAGGER S TATION".

5. INSTALL Al.L ADVANCE WARNING SIGNS IMMEDIATELY PRIOR TO INITIATING A FLAGGING OPERATION AND RE"40VE OR COVER ALL SIGNS IMMEDIATELY UPON TERMINATION Of THE OPERATION.

6. MAINTAIN TWO·WAY RADIO COMMUNCATIONS BETWEEN All FLAGGERS.

NIGHTTIME FLAGGING OPERATIONS -

1. EACH FLAGGER SHALL WEAR SAFETY N'PAREL IN COMPLIANCE WITH THE REQUIREMENTS Of ANSI/ ISEA 107 STANDARD PERF'ORMANCE FOR CLASS 3 RISK

EXPOSURE. LATEST REVISION, WHEN CONDUCTING NIGHTTIME FLAGGING OPERATIONS.

2. ILLUMINATE EACH "fLAGGER STATION" WITH ANY COMBINATION Of PORTABLE LIGHTS. STANDARD ELECTRIC LIGHTS, EXISTING STREET LIGHTS, ETC. THAT WILL PROVIDE A MINIMUM ILLUMINATION LEVEL Of 108 Lx OR 10 le WHEN CONDUCTING NIGHTTIME FLAGGING OPERATIONS.

3. SUPPLEMENT EACH N!RAY Of ADVANCE WARNING SIGNS ON EACH "MAINLINE APPROACH" WITH A TRAii.ER MOUNTEO CHANGEABLE MESSAGE SIGN. THESE CHANGEABLE MESSAGE SIGNS ARE NOT REQUIRED ON THE "SIDE ROADS" INTERSECTING THE RON:JWAY WHERE THE "WORK ACTIVITY AREA" IS LOCATED.

ALSO, THESE CHANGEABLE MESSAGE SIGNS N!E NOT REQUIRED DURING DAYTIME FLAGGING OPERATIONS UNLESS OTHERWISE DIRECTED BY THE STANDARD DRAWINGS. INST ALL THE CHANGEABLE MESSAGE SIGNS IN ADVANCE or THE N:JVANCE WARNING SIGN ARRAYS. THE MESSAGES SHOULD BE "PREPARE TO STOP", "HAGGER AHEAD". A TRUCK MOUNTED CHANGEABLE MESSAGE SIGN IS NOT AN ACCEPTABLE Al. TERNATIVE TO A TRAILER MOUNTED CHANGEABLE MESSAGE SIGN DURING NIGHTTIME FLAGGll~G OPERATIONS.

4. UTILIZE PORTABLE PLASTIC DRUMS OR 42" OVERSIZED TRAFFIC CONES IN PLACE or 36" STANDARD TRAFFIC CONES DURING NIGHTTllolE FLAGGING

OPERATIONS.

BUFFER SPACE -

1. THE MINIMUM DISTANCE REQUIREMENTS FOR THE "BUFFER SPACE" ARE BASED UPON THE LEGAi. POSTED REGULATORY SPEED LIMIT OF' THE ROADWAY

PRIOR TO BEGINNING THE WORK.

SPEED LIMIT

LOW SPEED

! 35 MPH

INTERMEDIATE SPEED

40 - 50 MPH

HIGH SPEED

55 MPH

200 FEET

300 FEET

400 FEET

2. THE PRESENCE OF PERSONNEL, TOOLS, MATERIALS. EQUIPMENT, WORK VEHICLES. ETC. WITHIN THE LIMITS or THE "BUFFER SPACE- IS PROHIBITED. A TRUCK MOUNTED ATTENUATOR IS THE ONL y WORK VEHICLE THAT MAY TEMPORARIL y ENCROACH UPON THE - BUFFER SPACE" IN ACCORDANCE WITH THE CONDITIONS SPECIFIED IN THE FOLLOWING NOTE WHEN APPROVED BY THE ENGINEER. SEE NOTE NO. 3.

3. WHEN THE MINIMUM DISTANCE REOUlREMENTS FOR THE "BUFFER SPACE" ARE UNAVAILABLE OU[ TO F'IELD CONDITIONS, IT MAY BC NECESSARY FOR A TRUCK MOUNTED ATTENUATOR TO TEMPORARILY ENCROACH UPON THE "BUFFER SPACE" WHEN APPROVED BY THE ENGINEER. A TRUCK MOUNTED ATTENUATOR IS THE ONLY VEHICLE PERMITTED TO TEMPORARILY ENCROACH UPON THE "BUff[R SPACE" AND THIS ENCROACH~ENT IS ONLY PERMITTED WHEN Al.L REASONABLE OPTIONS TO AVOID DOING SO HAVE BEEN EXHAIUSTED. WHEN ENCROACHMENT UPON THE " BUFFER SPACE" IS APPROVED BY THE ENGINEER. MINIMIZE THE TIME DURATION OF THE ENCROACHMENT BY REMOVAL or THE TRUCK lolOUNTED ATTENUATOR FROM THE " BUFFER SPACE' AT THE FIRST OPPORTUNITY THE MINIMUM DISTANCE REQUIREMENTS fOR THE "BUFFER SPACE" BECOME AVAILABLE.

THIS DRAWING IS NOT TO SCALE

SIGNS AND TRAFFIC CONTROL DEVICES -

1. MEASURE THE ADVANCE WARNING SIGN LOCATIONS FOR EACH N'PROACH FROM THE '"nAGGER STATION" LOCATED ON THAT APPROACH.

2. INST ALL THE N:JVANCE WARNING SIGNS AS SPACING INTERVALS BASED UPON THE POSTED REGULATORY SPEED LIMIT or THE RO>'DWAY PRIOR TO BEGINNING ANY WORK. THE MlVANCE WN!NING SIGN SPACING INTERVALS INDICATEO ARE FOR NORMAL CONDITIONS. ADJUSTMENTS TO THESE DISTANCES MAY BE NECESSARY DUE TO EXISTING SIGNS, INTERSECTING ROADWAYS. HORIZONTAL AND/OR VERTICAL ALIGNMENTS OR OTHER SIGHT DISTANCE

RESTRICTIONS. SEE TABLE A.

3. INSTALL ADVANCE WARNING SIGNS MOUNTED ON PORTABLE SIGN SUPPORTS NO LESS THAN 4 FEET FROM THE NEAR EDGE or THE SIGN TO THE NEAR EDGE Of AN ADJACENT TR,t.V[L LANE ON ROADWAYS WITH EN!TH SHOULDERS AND NO LESS THAN 6 FEET FROM THE NEAR EDGE or THE SIGN TO THE N[N! EDGE or AN ADJACENT TRAVEL LANE ON ROADWAYS WITH PAVED SHOULDERS. WH[N CURB ~ GUTTER IS PRESENT, INSTAl.L THE SIGN NO LESS THAN 2 rEET FROM THE NEAR EDGE or THE SIGN TO THE r ACE Of THE CURB.

4. ALL SIGNS MOUNTED ON PORTABLE SICN SUPPORTS SHALL HAVE A MlNIMUM MOUNTING HEIGHT or 5 FEET FROM THE GROUND TO THE BOTTOM or THE SIGN. ALL SIGNS MOUNT[D ON GROUND MOUNTED U-CHANN[L OR SQUARE STEEL TUBE POSTS SHALL HAVE A MINIMUM MOUNTING HEIGHT or 7 FEET FROM THE CRADE ELEVATION or THE NEAR EDGE or THE ADJACENT TRAVEL LANE TO THE BOTTOM or THE SIGN UNLESS OTHERWISE DIRECTED BY THE DEPARTMENT. MOUNT ALL SIGNS STRAIGHT AND LEVEL AND WITH THE FACE or THE SIGNS PERPENDICULAR TO THE SURFACE or THE ROADWAY.

5. REFLECTORIZE ORANGE ADVANCE WARNING SIGNS AND ANY ORANGE AREAS or A MUL Tl· COLORED ADVANCE WARNING SIGN WITH A FLUORESCENT ORANGE COLORED PRISMATIC RETROREFLECTIVE SHEETING. REFLECTORIZE WHITE REGULATORY SIGNS AND ANY WHITE AREAS or A MUL Tl·COLORED ADVANCE

WARNING SIGN WITH A WHITE COLORED PRISMATIC RETROREFLECTIVE SHEETING.

6. ALL TRAFFIC CONTROL DEVICES SHALL COMPL y WITH THE REOUIREMENTS or NCHRP REPORT 350 OR THE MSHTO MANUAL FOR ASSESSING SAFETY HAIROWAR( IMASHl ANO SHAl.L REQUIRE APPROVAL BY THE DEPARTMENT. ONLY THOSE TRAFFIC CONTROL DEVICES INCLUDED ON THE "APPROVED PRODUCTS UST F'OR TRAF'FIC CONTROL DEVICES IN WORK ZONES" ARE CONSIDERED ACCEPTABLE FOR USE. THIS LIST M"Y BE ACCESSED ON THE DEPARTMENT'S WEB SITE AT' www.1cdol.org

7. REFLECTORIZATION Of 36" TRAFFIC CONES USEO DURING DAYLIGHT HOURS IS NOT REQUIRED IN THE EVENT A DAYTIME FLAGGING OPERATION EXTENDS INTO THE NIGHTTIME HOURS, REPLACE ALL 36" TRAFFIC CONES WITH EITHER PORT ABLE PLASTIC DRUMS QR 4 2" OVERSIZED TRAFFIC CONES.

REFLECTORIZE ALL PORTABLE PLASTIC DRUMS ANO 42" OVERSIZED TRAFF'IC CONES WITH TYPE 11 OR GRE"TER F'LEX1BLE MICROPRISMATIC

RETROREFLECTIVE SHEETING UNLESS OTHERWISE DIRECTED BY THE DEPARTMENT.

II. DELINEATE THE TANGENT AREA OF TH[ LANE Cl.OSURE WITH THE NECESSARY TRAFFIC CONTROL DEVICES TO MINIMIZE ENCROACHMENT BY MOTORISTS INTO THE CLOS(D TRAVEL LANE UNLESS OTHERWISE DIRECTED BY THE ENGINEER. ON ROMlWAYS WITH POSTED RECULATORY SPEED LIMITS or 35 "4PH OR LESS, INSTALL THE TRAFFIC CONTROL DEVICES AT SPACING INTERVALS OF 25 rEET. ON ROADW"YS WITH POSTED REGULATORY SPEED LIMITS or 40 MPH OR GREATER. INSTAl.L THE TRAFFIC CONTROL DEVICES AT SPACING INTERVALS OF 50 FEET. SEE TABLE B.

ADVANCE WARNING ARROW PANEL -

1. DURING fLACGING OPERATIONS. AN .IOVANCE WARNING ARROW PANEL SHALL OPERATE IN THE "FOUR CORNERS" CAIUTION MODE WHEN LOCATED WITHIN

OR IN BETWEEN THE LIMITS or THE ADVANCE WARNING SIGN ARRAYS SPECIFIC TO ... FLAGGING OPERATION. OPERATION or AN ADVANCE WARNING ARROW PANEL IN AN ARROW, CHEVRON OR ANY OTHER TYPE or CAUTION MODE OTHER THAN THE "FOUR CORNERS" CAIJTION MOOE WHEN LOCATED WITHN QR IN BETWEEN THE LIMITS Of THE ADVANCE WARNING SIGN ARRAYS AS SPECIFIED HEREINBEFORE IS PROHIBITED.

2. ALL ADVANCE WARNING ARROW PANELS SHALL COMPLY WITH THE STANDARD SPECIFICATIONS FOR HIGHWAY CONSTRUCTION, LATEST EDITION. THE SPECIFIC LOCATION or AN ADVANCE WARNING AIRROW PANEL MAY REQUIRE ADJUSTMENTS DUE TO HORIZONTAi. AND/OR VERTICAL ALIGNMENT OR OTHER

SIGHT DISTANCE RESTRICTIONS.

TRUCK MOUNTED ATTENUATOR -

1. A TRUCK MOUNTED ATTENUATOR IS OPTIONAi.. UTILIZATION or A TRUCK MOUNTED ATTENUATOR SHOULD BE CONSIDERED WHEN THE MINIMUM DISTANCE

REQUIREMENTS FOR THE "BUFFER SPACE" ARE UNAVAILABLE DUE TO FIELD CONDITIONS. HOWEVER, A TRAILER MOUNTED ADVANCE WARNING ARROW PANEL MAY BE UTILIZED IN Pl.ACE or A TRUCK MOUNTED ATTENUATOR DURING TRAIFFIC CONTROL SETUPS FOR WORK ACTIVITIES SUCH AS ASPHAI. T

CONCRETE PLACEMENT OPERATIONS WHEN N'PROVED BY THE ENGINEER.

2. WHEN UTILIZING A TRUCK MOUNTED ATTENUATOR, ENSURE THE TRUCK HAS THE CORRECT GROSS VEHICULAR WEIGHT <GVMl REQUIRED FOR THE TYPE or TRUCK MOUNTED ATTENUATOR BEING UTILIZED. A DIRECT TRUCK MOUNTED TRUCK MOUNTED ATTENUATOR, A UNIT MOUNTED AND ATTACHED TO BRACKETS OR SIMILAR DEVICES CONNECTED TO THE FRAME OF THE TRUCK. REQUIRES A TRUCK WITH A MINIMUM GVM or 15,000 POUNDS CACTUAI.

WEIGHT> UNLESS OTHERWISE DIRECTED BY THE DEPARTMENT. A TRAILER TOWED TRUCK MOUNTED ATTENUATOR. A TRAILER TYPE UNIT TOWED FROM BEHND ANO ATTACHED TO THE FRAME OF THE TRUCK VIA A PINTLE HOOK I HITCH, REOURES A TRUCK WITH A MINIMUM GVM Of 10.000 POUNDS <ACTUAL WEIGHT> UNLESS OTHERWISE DIRECTED BY THE DEPARTMENT. If THE ADDITION Of SUPPLEMENT Al. WEIGIH TO THE VEHICLE AS BALLAST IS NECESSARY, CONTAIN THE MATERIAL WITHIN A STRUCTURE CONSTRUCTED Of STEEL. CONSTRUCT THS STEEL STRUCTURE TO HAVE A MINIMUM Of FOUR (4) SIOES AND A BOTTOM. A TOP IS OPTIONAL. BOLT THIS STRUCTURE TO THE FRAME OF THE TRUCK. UTILIZE A SUFFICIENT NUMBER Of FASTENERS FOR ATTACHMENT or THE STEEL STRUCTURE TO THE F'RAME or THE TRUCK TO ENSURE THE STRUCTURE WILL NOT SEPARATE FROM THE FRAME Of THE TRUCK DURING AN IMl"ACT UPON THE TRUCK MOUNTED ATTENUATOR. UTILIZE EITHER DRY LOOSE SAND OR STEEL REINFORCED CONCRETE FOR BALLAST MATERIAL WITHIN TH[ STEEL STRUCTURE TO ACHIEVE THE NECESSARY WEIGHT. THE BALLAST MATERIAL SHALL REMAIN CONT AINEO WITHIN THE CONFINES or THE STEEL STRUCTURE IN ITS ENTIRETY AND SHALL NOT PROTRUDE FROM THE STEEL STRUCTURE IN ANY

MANNER.

3. LOCATE THE TRUCK MOUNTED ATTENUATOR APPROXIMATELY 100 FEET IN ADVANCE or THE "WORK ACTIVITY Ml.EA" UNLESS OTHERWlSE DIRECTED BY

THE ENGINEER.

4. PROVIDE, INST ALL ANO MAINTAIN THE TRUCK MOUNTED ATTENUATOR AS SPECIF'IED BY THE ST ANOARO SPECIFICATIONS ANO AS DIRECTED BY THE

ENGINEER.

GENERAL -

1. CONDUCT THE WORK IN SUCH A MANNER SO AS NOT TO ENCROACH ONTO THE ADJACENT TRAVEL LANE OPEN TO TRAFFIC. INSTAl.L. MAINTAIN AND

MlJUST THE TRAFFIC CONTROL DEVICES AS NECESSARY TO ENSURE PROPER DELINEATION or THE WORK AREA.

2. If WORK IS BEING CONDUCTED AT TWO DIFFERENT LOCATIONS AT THE SAME TIME, SEPARATE THE TWO LOCATIONS BY NO LESS THAN 2 Mii.ES FROM THE LAST TRAFFIC CONTROL DEVICE IN THE "DOWNSTREAM TAPER" or THE FIRST LANE CLOSURE TO THE FIRST TRAFFIC CONTROL DEVICE IN THE "APPROACH T N>ER" OF THE SECOND LANE CLOSURE ENCOUNTERED BY A MOTORIST UNLESS OTHERWISE DIRECTED BY THE ENGINEER.

3. THE DEPARTMENT RESERVES THE RIGHT TO RESTRICT WORK OPERATIONS AND/OR WITHHOLD THE MONTHLY ESTIMATE IF THE TRAFFIC CONTROL IS NOT PROPERLY INSTALLED AND MAINTAINED AS DIRECTED BY THE STANDARD SPECIFICATIONS, THE SPECIAL PROVISIONS. THE ST.INDARO DRAWINGS, THE

PLANS ANO/OR THE ENGINEER.

TABLE A

SIGN PLACEMENT INTERVALS

SPEED LIMIT * # ~ .35 MPH 200 LOW SPEED

# 40 - 50 MPH 350

INTERMEDIATE SPEED

55 MPH 500 HIGH SPEED

• REGULATORY POSTED SPEED Ll~IT PRIOR

BEGINNING WORK

TO

TABLE B

TRAFFIC CONTROL DEVICE SPACING INTERVALS

WORK ACTIVITY I BUFFER SPACE AREAS

SPEED LIMIT SPACING INTERVALS

~ 35 MPH 25 FEET

40 - 55 MPH 50 FEET

2 MILE MAX.

--0000

I·

Do

....0 0000.!L-'l.0 00 ~ 36" TRAFFIC CONES I!l

200' 200'

CURB 8c GUTTER with SIDEWALK

PAVED MEDIAN

MOUNT THE PORTABLE EXIT SIGN ( E5-1 ) ( M-l025 )

AT A MINIMUM MOUNTING HEIGHT OF 7' FROM THE

PAVEMENT SURF ACE TO THE BOTTOM OF THE SIGN

* * CONTINUE TRAFFIC CONTROL DEVICES

ALONG RAMP IF RAMP SHOULDER IS

BEING RECONSTRUCTED.

CURB 8c GUTTER with SIDEWALK

_**0

<0

200'

NO LESS THAN FOUR

36" TRAFFIC CONES

ALIGNED TO CREATE

A RADIUS NO

LESS THAN 50'

350'

Ul a r'1

Ul ::u r'1 fT1

GENERAL NOTES

1. ALL SIGN LOCATIONS ARE TO BE MEASURED FROM THE WORK AREA. WORK LIMITS FOR

THE PROJECT WILL BE DETERMINED BY THE ENGINEER AND AS INDICATED IN THE CONTRACT.

2. INSTALL ADVANCE WARNING SIGNS MOUNTED ON PORTABLE SIGN SUPPORTS NO LESS THAN

4 FEET FROM THE NEAR EDGE OF THE SIGN TO THE NEAR EDGE OF AN ADJACENT TRAVEL

LANE ON ROADWAYS WITH EARTH SHOULDERS AND NO LESS THAN 6 FEET FROM THE NEAR

EDGE OF THE SIGN TO THE NEAR EDGE OF AN ADJACENT TRAVEL LANE ON ROADWAYS

WITH PAVED SHOULDERS. WHEN CURB 8c GUTTER IS PRESENT, INSTALL THE SIGN NO LESS

THAN 2 FEET FROM THE NEAR EDGE OF THE SIGN TO THE FACE OF THE CURB.

3. SPACINGS INDICATED ARE FOR NORMAL CONDITIONS; ADJUSTMENTS MAY BE REQUIRED DUE

TO HORIZONT AL ANDIOR VERTICAL ALIGNMENTS OR OTHER SIGHT DISTANCE RESTRICTIONS.

4. ALL SIGNS MOUNTED ON PORT ABLE SIGN SUPPORTS SHALL HAVE A MINIMUM MOUNTING HEIGHT

OF 5 FEET FROM THE GROUND TO THE BOTTOM OF THE SIGN. ALL SIGNS MOUNTED ON

GROUND MOUNTED U-CHANNEL POSTS OR SQUARE STEEL TUBE POSTS SHALL HAVE A MINIMUM

MOUNTING HEIGHT OF 7 FEET FROM THE GRADE ELEVATION OF THE NEAR EDGE OF THE

ADJACENT TRAVEL LANE TO THE BOTTOM OF THE SIGN UNLESS OTHERWISE DIRECTED BY THE

DEPARTMENT. MOUNT ALL SIGNS STRAIGHT AND LEVEL AND WITH THE FACE OF THE SIGNS

PERPENDICULAR TO THE SURFACE OF THE ROADWAY.

5. REFLECTORIZE ORANGE ADVANCE WARNING SIGNS AND ANY ORANGE AREAS OF A MUL TI

COLORED ADVANCE WARNING SIGN WITH A FLUORESCENT ORANGE COLORED PRISMATIC

RETROREFLECTIVE SHEETING. REFLECTORIZE WHITE REGULATORY SIGNS AND ANY WHITE

AREAS OF A MULTI-COLORED ADVANCE WARNING SIGN WITH A WHITE COLORED PRISMATIC

RETROREFLECTIVE SHEETING.

6. ALL TRAFFIC CONTROL DEVICES SHALL COMPLY WITH ALL NCHRP REPORT 350

REQUIREMENTS AND SHALL REQUIRE APPROVAL BY THE DEPARTMENT. ONLY THOSE TRAFFIC

CONTROL DEVICES INCLUDED ON THE "APPROVED PRODUCTS LIST FOR TRAFFIC CONTROL

DEVICES IN WORK ZONES" ARE CONSIDERED ACCEPT ABLE FOR USE. THIS LIST MAY BE

ACCESSED ON THE DEPARTMENT'S WEB SITE AT: www.scdot.org .

7. THE CONTRACTOR SHALL PROVIDE AND UTILIZE ANY SPECIAL SIGN MOUNTING ASSEMBLIES

AND HARDWARE THAT MAY BE NECESSARY FOR INSTALLING AND MOUNTING SIGNS IN AREAS

OF CONCRETE MEDIAN BARRIER, BRIDGE PARAPET WALLS OR DOUBLEFACED GUARDRAIL.

8. REFLECTORIZATION OF 36" TRAFFIC CONES USED DURING DAYLIGHT HOURS IS NOT REQUIRED.

IF THIS TRAFFIC CONTROL SETUP EXTENDS INTO THE NIGHTTIME HOURS, REPLACE ALL 36"

TRAFFIC CONES WITH EITHER PORT ABLE PLASTIC DRUMS OR 42" OVERSIZED TRAFFIC CONES.

REFLECTORIZE ALL PORT ABLE PLASTIC DRUMS AND 42" OVERSIZED TRAFFIC CONES WITH

TYPE III FLEXIBLE PRISMATIC RETROREFLECTIVE SHEETING UNLESS OTHERWISE DIRECTED BY

THE DEPARTMENT.

9. REFLECTORIZE ALL BARRICADES WITH A TYPE VIII OR IX PRISMATIC RETROREFLECTIVE

SHEETING ON ALL PROJECTS LET TO CONTRACT AFTER MAY 1, 2012 UNLESS OTHERWISE

DIRECTED BY THE DEPARTMENT.

10. TYPE II BARRICADES SHALL HAVE A MINIMUM WIDTH OF 3 FEET UNLESS OTHERWISE

DIRECTED BY THE DEPARTMENT.

11. CONDUCT THE WORK IN SUCH A MANNER THAT WILL MINIMIZE ENCROACHMENT OF TRAFFIC

CONTROL DEVICES, EQUIPMENT, PERSONNEL, MATERIALS OR ANY WORK RELATED VEHICLES

ONTO AN ADJACENT TRAVEL LANE OPEN TO TRAFFIC. INSTALL. MAINTAIN AND ADJUST THE

TRAFFIC CONTROL DEVICES AS NECESSARY TO ENSURE PROPER DELINEATION OF THE WORK

AREA.

12. LANE CLOSURES ARE RESTRICTED TO MAXIMUM LENGTHS OF 2 MILES UNLESS OTHERWISE

DIRECTED BY THE SPECIAL PROVISIONS ANDIOR THE DEPARTMENT.

1- 25' SPACING AND CONTINUE -=-=::-:::=-----+0--150' OPENING • I ·

o -0..-0 0 0 0-

INST ALL 36" TRAFFIC CONES II

25' SPACING AND CONTINUE

13. IF WORK IS BEING CONDUCTED SIMUL T ANEOUSL Y AT TWO DIFFERENT LOCATIONS WITHIN THE

SAME TRAVEL LANE UNDER TWO SEPARATE LANE CLOSURES ON A LOW SPEED URBAN

ROADWAY, SEPARATE THE TWO LANE CLOSURES BY NO LESS THAN 1 MILE FROM THE END

OF THE FIRST CLOSURE THAT A MOTORIST WILL ENCOUNTER TO THE BEGINNING OF THE

TAPER OF THE SECOND CLOSURE. AS ILLUSTRATED AS ILLUSTRATED

a 36" TRAFFIC CONES

PAVED MEDIAN

"TYPICAL EXIT RAMP"

APPLICATION

(NO SCALE)

a a O-fi.......D a a a O..o.-D

---10-+-00------------------ ~T~~~~~ T~'tFh~NWNNUEES I!l

PAVED MEDIAN

"TYPICAL ENTRANCE RAMP"

APPLICATION

(NO SCALE)

AS ILLUSTRATED

ADVANCE WARNING ARROW PANEL

ALL ADVANCE WARNING ARROW PANELS SHALL BE 48" x 96" WITH A MINIMUM LEGIBILITY

DIST ANCE OF 1 MILE. PLACEMENT OF AN ADVANCE WARNING ARROW PANEL MAY REQUIRE

ADJUSTMENTS DUE TO HORIZONTAL AND lOR VERTICAL ALIGNMENT OR OTHER SIGHT DISTANCE

RESTRICTIONS. THE PANEL FACE SHALL BE NONREFLECTIVE BLACK. ALL ADVANCE WARNING

ARROW PANELS SHALL COMPLY WITH THE STANDARD SPECIFICATONS FOR HIGHWAY

CONSTRUCTION, LATEST EDITION.

WHEN AN ADVANCE WARNING ARROW PANEL IS REQUIRED TO OPERATE IN THE CAUTION MODE,

THE ADVANCE WARNING ARROW PANEL SHALL DISPLAY THE "FOUR CORNERS" CAUTION MODE.

WITH ONE LAMP IN EACH CORNER. DISPLAY OF ANY OTHER TYPE OF CAUTION MODE OTHER

THAN THE "FOUR CORNERS" CAUTION MODE SUCH AS THE "FLASHING BAR" OR THE

"ALTERNATING DIAMOND" CAUTION MODES ARE UNACCEPTABLE AND PROHIBITED.

THIS DRAWING IS NOT TO SCALE

a a --Ll.. o

PAVED MEDIAN 7 \. ~AVED MEDIAN

"TYPICAL SIDE STREET"

APPLICATION

(NO SCALE)

PORTABLE TRUCK MOUNTED ATTENUATOR

1. UTILIZE A TRUCK MOUNTED ATTENUATOR ATTACHED TO THE REAR OF A TRUCK WITH A

MINIMUM GROSS VEHICULAR WEIGHT (GVM) OF 15.000 POUNDS (ACTUAL WEIGHT). IF THE

ADDITION OF SUPPLEMENTAL WEIGHT TO THE VEHICLE AS BALLAST IS NECESSARY, CONTAIN

THE MATERIAL WITHIN A STRUCTURE CONSTRUCTED OF STEEL. CONSTRUCT THIS STEEL

STRUCTURE TO HAVE A MINIMUM OF FOUR SIDES AND A BOTTOM. A TOP IS OPTIONAL.

BOL T THIS STRUCTURE TO THE FRAME OF THE TRUCK. UTILIZE A SUFFICIENT NUMBER OF

FASTENERS FOR ATTACHMENT OF THE STEEL STRUCTURE TO THE FRAME OF THE TRUCK

14. IF WORK IS BEING CONDUCTED SIMULTANEOUSLY AT TWO DIFFERENT LOCATIONS IN THE

SAME DIRECTION BUT WITHIN DIFFERENT TRAVEL LANES UNDER TWO SEPARATE LANE

CLOSURES ON A LOW SPEED URBAN ROADWAY. SEPARATE THE TWO LANE CLOSURES BY NO

LESS THAN 2 MILES FROM THE END OF THE FIRST CLOSURE THAT A MOTORIST WILL

ENCOUNTER TO THE BEGINNING OF THE TAPER OF THE SECOND CLOSURE.

15. UTILIZATION OF A CHANGEABLE MESSAGE SIGN IS OPTIONAL WITH THIS TRAFFIC CONTROL

SETUP. HOWEVER, WHEN A CHANGEABLE MESSAGE SIGN IS UTILIZED. INSTALL THE SIGN AS

ILLUSTRATED ON THIS STANDARD DRAWING UNLESS OTHERWISE DIRECTED BY THE SPECIAL

PROVISIONS, THE PLANS ANDIOR THE ENGINEER. INSTALL THE CHANGEABLE MESSAGE SIGN

NO LESS THAN 6 FEET FROM THE NEAR EDGE OF THE ADJACENT TRAVEL LANE AND

SUPPLEMENT THE SIGN LOCATION WITH NO LESS THAN 5 PORTABLE PLASTIC DRUMS FOR

DELINEATION AS ILLUSTRATED. 36" STANDARD TRAFFIC CONES OR 42" OVERSIZED TRAFFIC

CONES ARE PROHIBITED AS SUBSTITUTES FOR THE PORT ABLE PLASTIC DRUMS IN THIS

APPLICATION. DURING A RIGHT LANE CLOSURE, THE SIGN SHOULD FLASH AL TERNATEL Y TO

READ "RIGHT LANE CLOSED", "MERGE LEFT" AT A RATE THAT WILL PERMIT MOTORISTS TO

READ BOTH MESSAGES AT LEAST ONCE.

16. THE DEPARTMENT RESERVES THE RIGHT TO RESTRICT WORK OPERATIONS AND/OR WITHHOLD

THE MONTHLY ESTIMATE IF THE TRAFFIC CONTROL IS NOT PRO PERL Y INSTALLED AND

MAINT AlNED AS DIRECTED BY THE STANDARD SPECIFICATIONS, THE SPECIAL PROVISIONS, THE

ST ANDARD DRAWINGS, THE PLANS AND/OR THE ENGINEER.

17. THIS TYPICAL TRAFFIC CONTROL SETUP APPLIES TO THE INSTALLATION OF A LANE CLOSURE

ON AN URBAN ROADWAY WITH A POSTED REGULATORY SPEED LIMIT OF 35 MPH OR LESS.

TO ENSURE THE STRUCTURE WILL NOT SEPARATE FROM THE FRAME OF THE TRUCK DURING

AN IMPACT UPON THE ATTACHED TRUCK MOUNTED ATTENUATOR. UTILIZE EITHER DRY LOOSE

SAND OR STEEL REINFORCED CONCRETE FOR BALLAST MATERIAL WITHIN THE STEEL

STRUCTURE TO ACHIEVE THE NECESSARY WEIGHT. THE BALLAST MATERIAL SHALL REMAIN

CONTAINED WITHIN THE CONFINES OF THE STEEL STRUCTURE AND SHALL NOT PROTRUDE

FROM THE STEEL STRUCTURE IN ANY MANNER. ~ LEFT LANE CLOSURE

2. LOCATE THE TRUCK MOUNTED ATTENUATOR 100 FEET IN ADVANCE OF THE WORK AREA

UNLESS OTHERWISE SPECIFIED.

3. PROVIDE, INSTALL AND MAINTAIN THE TRUCK MOUNTED ATTENUATOR AS SPECIFIED BY THE

STANDARD SPECIFICATIONS AND AS DIRECTED BY THE ENGINEER.

4. DUE TO THE WEIGHT OF A TRUCK MOUNTED ATTENUATOR, THE TRUCK MOUNTED ATTENUATOR

SUPPLEMENTED WITH AN ADVANCE WARNING ARROW PANEL MAY BE REPLACED WITH A TRAILER

MOUNTED ADVANCE WARNING ARROW PANEL WHEN THIS TRAFFIC CONTROL SETUP IS UTILIZED

FOR ASPHALT CONCRETE PAVEMENT OPERATIONS. REPLACEMENT WITH A TRAILER MOUNTED

ADVANCE WARNING ARROW PANEL SHALL REQUIRE THE ENGINEER'S APPROVAL.

1. SIGNS ILLUSTRATED ARE FOR A RIGHT LANE CLOSURE.

2. WHEN CLOSING THE LEFT TRAVEL LANE, USE THE FOLLOWING:

1 - W4-2L-48 1 - W20-5L-48-A

3. THE STRIPES ON THE BARRICADES TO THE LEFT OF TRAFFIC SHALL SLOPE

DOWNWARD FROM THE UPPER LEFT TO THE LOWER RIGHT.

4. THE FLASHING ARROW AND THE "LARGE ARROW" SIGN (Wl-6-48) SHALL

POINT TO THE RIGHT.

5. THE CHANGEABLE MESSAGE SIGN SHALL FLASH ALTERNATELY TO READ

"LEFT LANE CLOSED". "MERGE RIGHT".

REFERENCES

WORK ZONE TRAFFIC

CONTROL ENGINEER

2 -11-11 JCS GENERAL UPDATE

5-28-10 JCS CORRECTION

8-21-07 CS DRAWING NO. UPDATE

# DATE CHK DESCRIPTION

SOUTH CAROl. INA DEPARTMENT OF TRANSPORTATION

DESIGN STANDARDS OFFICE

955 PARK STREET

ROOM 405

COLUMBIA. SC 29201

STANDARD DRAWING

LAi\IE CLOSURE

DAYTIME

URBAN LOW SPEED

< / = 35 MPH

610-010-00 EFFECTIVE LETTlNG DATE

CONTROL ENGINEER

2-15-11 JCS GENERAL UPDATE

8-22-01 JCS DRAWING NO. UPDATE

SOUTH CAROLINA OEPARTI£NT OF TRANSPORTATION

DESIGN STANDARDS OFFICE

955 PARK STREET

ROOM 405

COLUMBIA. SC 29201

STAt\IDARD DRAWING

LANE CLOSURE

DAYTIME

MUL TILANE

PRIMARY ROUTES

610-025-00

EFFECTIVE LETTING DATE

~ bkJ

D" ° 0 ll~ ~ ~ ~ ~ o .:::..L~ ~ ~ __

700' TAPER

TYPE II BARRICADES

II! 50' SPACING

N d:

t(J

6 * N

MOUNT THE PORTABLE EXIT SIGN ( E5-1 ) ( M-1025 ) r*** AT A MINIMUM MOUNTING HEIGHT OF 7' FROM THE

/ PAVEMENT SURFACE TO THE BOTTOM OF THE SIGN

Do

RIGHT SHOULDER

o 0 o f 0 0 0 .J) 0 o~ 0 000-0-000000-0-

'-- 36" TRAFFIC CONES II! 250' I

1- 50' SPACING AND CONTINUE----+--- 36" TRAFFIC CONES

SPACINGS AS ILLUSTRATED II! 25' SPACING

MEDIAN SHOULDER

o 0

" TYPICAL EXIT RA'AP"

APPLICATION

( NO SCALE)

* * * * * CONTINUE TRAFFIC CONTROL DEVICES

ALONG RAMP IF RAMP SHOULDER IS

BEING RECONSTRUCTED.

_**0

I SO' OPENING I

o ~o 0 0 0-

INSTALL 36" TRAFFIC CONES III

50' SPACING AND CONTINUE

SpACINGS AS ILLUSTRATED

C \-lOCO

8 0 --0- 0 0 --D 0 ---'L f---100' OPENING-I-- 36" TR.J~?~ CONES -_-t-------____________ ~~T '}pLAa~~ T~~F~~N~~~Ji Cl

CI 50' SPACING SPACINGS AS ILLUSTRATED

MEDIAN SHOULDER

THIS DRAW[NG [S NOT TO SCALE

"TYPICAL ENTRANCE RAMP"

APPLICATION

(NO SCALE)

~ LEFT LANE CLOSURE

SIGNS ILLUSTRATED ARE FOR A RIGHT LANE CLOSURE.

2 . WHEN CLOSING THE LEFT TRAVEL LANE, USE THE FOLLOWING:

2 - W20-5L-48-10 2 - W20-5L-48-1I2 MILE

2 - W4-2L-48 I - R4-7-48

3 . THE STRIPES ON THE BARRICADES TO THE LEFT OF TRAFFIC SHALL SLOPE

DOWNWARD FROM THE UPPER LEFT TO THE LOWER RIGHT.

4. THE FLASHING ARROW AND THE "LARGE ARROW" SIGN (WI-6-48) SHALL

POINT TO THE RIGHT.

5. THE CHANGEABLE MESSAGE SIGN SHALL FLASH AL TERNATEL Y TO READ

"LEFT LANE CLOSED", "MERGE RIGHT".

PORTABLE TRUCK MOUI\JTED ATTENUATOR

UTILIZE A TRUCK MOUNTED ATTENUATOR ATTACHED TO THE REAR OF A TRUCK WITH A

MINIMUM GROSS VEHICULAR WEIGHT (GVM) OF 15.000 POUNDS (ACTUAL WEIGHT>. IF THE

ADDITION OF SUPPLEMENTAL WEIGHT TO THE VEHICLE AS BALLAST IS NECESSARY. CONTAIN

THE MATERIAL WITHIN A STRUCTURE CONSTRUCTED OF STEEL. CONSTRUCT THIS STEEL

STRUCTURE TO HAVE A MINIMUM OF FOUR SIDES AND A BOTTOM. A TOP IS OPTIONAL.

BOL T THIS STRUCTURE TO THE FRAME OF THE TRUCK. UTILIZE A SUFFICIENT NUMBER OF

FASTENERS FOR ATTACHMENT OF THE STEEL STRUCTURE TO THE FRAME OF THE TRUCK

TO ENSURE THE STRUCTURE WILL NOT SEPARATE FROM THE FRAME OF THE TRUCK DURING

AN IMPACT UPON THE ATTACHED TRUCK MOUNTED ATTENUATOR. UTIliZE EITHER DRY LOOSE

SAND OR STEEL REINFORCED CONCRETE FOR BALLAST MATERIAL WITHIN THE STEEL

STRUCTURE TO ACHIEVE THE NECESSARY WEIGHT. THE BALLAST MATERIAL SHALL REMAIN

CONTAINED WITHIN THE CONFINES OF THE STEEL STRUCTURE AND SHALL NOT PROTRUDE

FROM THE STEEL STRUCTURE IN ANY MANNER.

2. LOCATE THE TRUCK MOUNTED ATTENUATOR 100 FEET IN ADVANCE OF THE WORK AREA

UNLESS OTHERWISE SPECIFIED.

3. PROVIDE, INSTALL AND MAINTAIN THE TRUCK MOUNTED ATTENUATOR AS SPECIFIED BY THE

STANDARD SPECIFICATIONS AND AS DIRECTED BY THE ENGINEER.

4 . DUE TO THE WEIGHT OF A TRUCK MOUNTED ATTENUATOR, THE TRUCK MOUNTED ATTENUATOR

SUPPLEMENTED WITH AN ADVANCE WARNING ARROW PANEL MAY BE REPLACED WITH A TRAILER

MOUNTED ADVANCE WARNING ARROW PANEL WHEN THIS TRAFFIC CONTROL SETUP IS UTILIZED

FOR ASPHALT CONCRETE PAVEMENT OPERATIONS. REPLACEMENT WITH A TRAILER MOUNTED

ADVANCE WARNING ARROW PANEL SHALL REQUIRE THE ENGINEER'S APPROVAL.

GENERAL NOTES

ALL SIGN LOCATIONS ARE TO BE MEASURED FROM THE WORK AREA WORK LIMITS FOR

THE PROJECT WILL BE DETERMINED BY THE ENGINEER AND AS INDICATED IN THE CONTRACT.

2 . INSTALL ADVANCE WARNING SIGNS MOUNTED ON PORTABLE SIGN SUPPORTS NO LESS THAN

4 FEET FROM THE NEAR EDGE OF THE SIGN TO THE NEAR EDGE OF AN ADJACENT TRAVEL

LANE ON ROADWAYS WITH EARTH SHOULDERS AND NO LESS THAN 6 FEET FROM THE NEAR

EDGE OF THE SIGN TO THE NEAR EDGE OF AN ADJACENT TRAVEL LANE ON ROADWAYS

WITH PAVED SHOULDERS. WHEN CURB a. GUTTER IS PRESENT, INSTALL THE SIGN NO LESS

THAN 2 FEET FROM THE NEAR EDGE OF THE SIGN TO THE FACE OF THE CURB.

3 . SPACINGS INDICATED ARE FOR NORMAL CONDITIONS; ADJUSTMENTS MAY BE REQUIRED DUE

TO HORIZONTAL AND/OR VERTICAL ALIGNMENTS OR OTHER SIGHT DISTANCE RESTRICTIONS.

4 _ ALL SIGNS MOUNTED ON PORTABLE SIGN SUPPORTS SHALL HAVE A MINIMUM MOUNTING HEIGHT

OF 5 FEET FROM THE GROUND TO THE BOTTOM OF THE SIGN. ALL SIGNS MOUNTED ON

GROUND MOUNTED U-CHANNEL POSTS OR SQUARE STEEL TUBE POSTS SHALL HAVE A MINIMUM

MOUNTING HEIGHT OF 7 FEET FROM THE GRADE ELEVATION OF THE NEM EDGE OF THE

ADJACENT TRAVEL LANE TO THE BOTTOM OF THE SIGN UNLESS OTHERWISE DIRECTED BY THE

DEPARTMENT. MOUNT ALL SIGNS STRAIGHT AND LEVEL AND WITH THE FACE OF THE SIGNS

PERPENDICULAR TO THE SURFACE OF THE ROADWAY.

5.

6.

7.

B.

9 .

10.

11 .

REFLECTORIZE ORANGE ADVANCE WARNING SIGNS AND ANY ORANGE AREAS OF A MUL TI

COLORED ADVANCE WARNING SIGN WITH A FLUORESCENT ORANGE COLORED PRISMATIC

RETROREFLECTIVE SHEETING. REFLECTORIZE WHITE REGULATORY SIGNS AND ANY WHITE

AREAS OF A MULTI-COLORED ADVANCE WARNING SIGN WITH A WHITE COLORED PRISMATIC

RETROREFLECTIVE SHEETING.

ALL TRAFFIC CONTROL DEVICES SHALL COMPLY WITH ALL NCHRP REPORT 350

REQUIREMENTS AND SHALL REQUIRE APPROVAL BY THE DEPARTMENT. ONLY THOSE TRAFFIC

CONTROL DEVICES INCLUDED ON THE "APPROVED PRODUCTS LIST FOR TRAFFIC CONTROL

DEVICES IN WORK ZONES" ARE CONSIDERED ACCEPTABLE FOR USE. THIS LIST MAY BE

ACCESSED ON THE DEPARTMENT'S WEB SITE AT : www .scdot.org •

THE CONTRACTOR SHALL PROVIDE AND UTiliZE ANY SPECIAL SIGN MOUNTING ASSEMBLIES AND HARDWARE THAT MAY BE NECESSARY FOR INSTALliNG AND MOUNTING SIGNS IN AREAS

OF CONCRETE MEDIAN BARRIER, BRIDGE PARAPET WALLS OR DOUBLEFACED GUARDRAIL.

REFLECTORIZATION OF 36" TRAFFIC CONES USED DURING DAYLIGHT HOURS IS NOT REQUIRED .

IF THIS TRAFFIC CONTROL SETUP EXTENDS INTO THE NIGHTTIME HOURS, REPLACE ALL 36"

TRAFFIC CONES WITH EITHER PORT ABLE PLASTIC DRUMS OR 42" OVERSIZED TRAFFIC CONES.

REFLECTORIZE ALL PORTABLE PLASTIC DRUMS AND 42" OVERSIZED TRI>FFIC CONES WITH

TYPE III FLEXIBLE PRISMATIC RETROREFLECTIVE SHEETING UNLESS OTHERWISE DIRECTED BY

THE DEPARTMENT.

REFLECTORIZE ALL BARRICADES WITH A TYPE VIII OR IX PR ISMATIC RETROREFLECTIVE

SHEETING ON ALL PROJECTS LET TO CONTRACT AF TER MAY I, 2012 UNLESS OTHERWISE

DIRECTED BY THE DEPARTMENT.

TYPE II BARRICADES SHALL HAVE A MINIMUM WIDTH OF 3 FEET UNLESS OTHERWISE

DIRECTED BY THE DEPARTMENT.

CONDUCT THE WORK IN SUCH A MANNER THAT WILL MINIMIZE ENCROACHMENT OF TRAFFIC

CONTROL DEVICES, EQUIPMENT, PERSONNEL, MATERIALS OR ANY WORK RELATED VEHICLES

ONTO AN ADJACENT TRAVEL LANE OPEN TO TRAFFIC. INSTALL, MAINTAIN AND ADJUST THE

TRAFFIC CONTROL DEVICES AS NECESSARY TO ENSURE PROPER DELINEATION OF THE WORK

AREA.

12. LANE CLOSURES ARE RESTRICTED TO MAXIMUM LENGTHS OF 2 MILES UNLESS OTHERWISE

DIRECTED BY THE SPECIAL PROVISIONS AND/OR THE DEPARTMENT .

13. IF WORK IS BEING CONDUCTED SIMUL T ANEOUSL Y AT TWO DIFFERENT LOCATIONS WITHIN THE

SAME TRAVEL LANE UNDER TWO SEPARATE LANE CLOSURES ON A PRIMARY ROADWAY WITH

A POSTED REGULATORY SPEED LIMIT OF 40 MPH OR GREATER, SEPARATE THE TWO LANE

CLOSURES BY NO LESS THAN 2 MILES FROM THE END OF THE FIRST CLOSURE THAT A

MOTORIST WILL ENCOUNTER TO THE BEGINNING OF THE TAPER OF THE SECOND CLOSURE .

14. IF WORK IS BEING CONDUCTED SIMULT ANEOUSL Y AT TWO DIFFERENT LOCATIONS IN THE

SAME DIRECTION BUT WITHIN DIFFERENT TRAVEL LANES UNDER TWO SEPARATE LANE

CLOSURES ON A PRIMARY ROADWAY WITH A POSTED REGULATORY SPEED LIMIT OF 40 MPH

OR GREATER, SEPARATE THE TWO LANE CLOSURES BY NO LESS THAN 4 MILES FROM THE

END OF THE FIRST CLOSURE THAT A MOTORIST WILL ENCOUNTER TO THE BEGINNING OF THE

TAPER OF THE SECOND CLOSURE.

15. UTILIZATION OF A CHANGEABLE MESSAGE SIGN IS OPTIONAL WITH THIS TRAFFIC CONTROL

SETUP. HOWEVER, WHEN A CHANGEABLE MESSAGE SIGN IS UTILIZED, INSTALL THE SIGN AS

ILLUSTRATED ON THIS STANDARD DRAWING UNLESS OTHERWISE DIRECTED BY THE SPECIAL

PROVISIONS, THE PLANS AND/OR THE" ENGINEER. INSTALL THE CHANGEABLE MESSAGE SIGN

NO LESS THAN 6 FEET FROM THE NEAR EDGE OF THE ADJACENT TRAVEL LANE AND

SUPPLEMENT THE SIGN LOCATION WITH NO LESS THAN 5 PORT ABLE PLASTIC DRUMS FOR

DELINEATION AS ILLUSTRATED. 36" STANDARD TRAFFIC CONES OR 42" OVERSIZED TRAFFIC

CONES ARE PROHIBITED AS SUBSTITUTES FOR THE PORTABLE PLASTIC DRUMS IN THIS

APPLICATION. DURING A RIGHT LANE CLOSURE, THE SIGN SHOULD FLASH AL TERNATEL Y TO

READ "RIGHT LANE CLOSED", "MERGE LEFT " AT A RATE THAT WILL PERMIT MOTORISTS TO

READ BOTH MESSAGES AT LEAST ONCE.

16. THE DEPARTMENT RESERVES THE RIGHT TO RESTRICT WORK OPERATIONS AND/OR WITHHOLD

THE MONTHLY ESTIMATE IF THE TRAFFIC CONTROL IS NOT PROPERLY INSTALLED AND

MAINTAINED AS DIRECTED BY THE STANDARD SPECIFICATIONS, THE SPECIAL PROVISIONS. THE

ST ANDARD DRAWINGS, THE PLANS AND/OR THE ENGINEER.

17 . THIS TYPICAL TRAFFIC CONTROL SETUP APPliES TO THE INSTALLATION OF A LANE CLOSURE

ON A PRIMARY ROADWAY WITH A POSTED REGULATORY SPEED LIMIT OF 40 MPH OR

GREATER.

ADVANCE WARNING ARROW PANEL

ALL ADVANCE WARNING ARROW PANELS SHALL BE 48". 96" WITH A MINIMUM LEGIBILITY

olST ANCE OF 1 MILE. PLACEMENT OF AN ADVANCE WARNING ARROW PANEL MAY REQUIRE

ADJUSTMENTS DUE TO HORIZONTAL AND/OR VERTICAL ALIGNMENT OR OTHER SIGHT DISTANCE

RESTRICTIONS. THE PANEL FACE SHALL BE NONREFLECTIVE BLACK. ALL ADVANCE WARNING

ARROW PANELS SHALL COMPLY WITH THE STANDARD SPECIFICATONS FOR HIGHWAY

CONSTRUCTION, LATEST EDITION.

WHEN AN ADVANCE WARNING ARROW PANEL IS REQUIRED TO OPERATE IN THE CAUTION MODE,

THE ADVANCE WARNING ARROW PANEL SHALL DISPLAY THE "FOUR CORNERS" CAUTION MODE,

WITH ONE LAMP IN EACH CORNER. DISPLAY OF ANY OTHER TYPE OF CAUTION MODE OTHER

THAN THE "FOUR CORNERS" CAUTION MODE SUCH AS THE "FLASHING BAR" OR THE

"AL TERNATING DIAMOND" CAUTION MODES ARE UNACCEPTABLE AND PROHIBITED.

o 36" TRAFFIC CONES

CONTROL ENGINEER

1 8-12-11 JCS GENERAL UPDATE

o 8-23-07 JCS DRAWING NO. UPDATE

# DATE OEseR I PI I ON

SOUTH CAROL INA DEPARTtLNT OF TRANSPOOTAT ION

DESIGN STANDARDS OFFICE

955 PARK STREET

ROOM 405

COLUMBIA. SC 29201

STANDARD DRAWING

RIGHT

SHOULDER CLOSURE

( CASE I / CASE II)

PRIMARY ROUTES

610-205-00

EFFECTIVE LETTING DATE

GENERAL NOTES

ALL SIGN LOCATIONS ARE TO BE MEASURED FROM THE WORK AREA. WORK LIMITS FOR

THE PROJECT WILL BE DETERMINED BY THE ENGINEER AND AS INDICATED IN THE CONTRACT.

2. INSTALL ADVANCE WARNING SIGNS MOUNTED ON PORTABLE SIGN SUPPORTS NO LESS THAN

4 FEET FROM THE NEAR EDGE OF THE SIGN TO THE NEAR EDGE OF AN ADJACENT TRAVEL

LANE ON ROADWAYS WITH EARTH SHOULDERS AND NO LESS THAN 6 FEET fROM THE NEAR

EDGE OF THE SIGN TO THE NEAR EDGE OF AN ADJACENT TRAVEL LANE ON ROADWAYS

WITH PAVED SHOULDERS. WHEN CURB 8. GUTTER IS PRESENT, INSTALL THE SIGN NO LESS

THAN 2 fEET FROM THE NEAR EDGE OF THE SIGN TO THE FACE OF THE CURB.

3. SPACINGS INDICATED ARE FOR NORMAL CONDITiONS; ADJUSTMENTS MAY BE REQUIRED DUE

TO HORIZONTAL AND/OR VERTICAL ALIGNMENTS OR OTHER SIGHT DISTANCE RESTRICTIONS.

4. ALL SIGNS MOUNTED ON PORT ABLE SIGN SUPPORTS SHALL HAVE A MINIMUM MOUNTING HEIGHT

OF 5 FEET FROM THE GROUND TO THE BOTTOM OF THE SIGN. ALL SIGNS MOUNTED ON

GROUND MOUNTED U-CHANNEL POSTS OR SQUARE STEEL TUBE POSTS SHALL HAVE A MINIMUM

MOUNTING HEIGHT OF 7 FEET FROM THE GRADE ELEVATION OF THE NEAR EDGE OF THE

ADJACENT TRAVEL LANE TO THE BOTTOM Of THE SIGN UNLESS OTHERWISE DIRECTED BY THE

DEPARTMENT. MOUNT ALL SIGNS STRAIGHT AND LEVEL AND WITH THE FACE OF THE SIGNS

PERPENDICULAR TO THE SURFACE OF THE ROADWAY.

5. REFLECTORIZE ORANGE ADVANCE WARNING SIGNS AND ANY ORANGE AREAS OF A MUL TI

COLORED ADVANCE WARNING SIGN WITH A FLUORESCENT ORANGE COLORED PRISMATIC

RETROREFLECTIVE SHEETING. REFLECTORIZE WHITE REGULATORY SIGNS AND ANY WHITE

AREAS OF A MULTI-COLORED ADVANCE WARNING SIGN WITH A WHITE COLORED PRISMATIC

RETROREFLECTIVE SHEETING.

6. ALL TRAfFIC CONTROL DEVICES SHALL COMPLY WITH ALL NCHRP REPORT 350

REQUIREMENTS AND SHALL REQUIRE APPROVAL BY THE DEPARTMENT. ONLY THOSE TRAFFIC

CONTROL DEVICES INCLUDED ON THE "APPROVED PRODUCTS LIST FOR TRAfFIC CONTROL

DEVICES IN WORK ZONES" ARE CONSIDERED ACCEPTABLE FOR USE. THIS LIST MAY BE

ACCESSED ON THE DEPARTMENT'S WEB SITE AT: www.scdot.org .

7. THE CONTRACTOR SHALL PROVIDE AND UTILIZE ANY SPECIAL SIGN MOUNTING ASSEMBLIES

AND HARDWARE THAT MAY BE NECESSARY FOR INSTALLING AND MOUNTING SIGNS IN AREAS

OF CONCRETE MEDIAN BARRIER, BRIDGE PAIRAPET WALLS OR DOUBLEFACED GUAlRDRAlL.

8. THE PRIMARY TRAfFIC CONTROL DEVICES UTILIZED FOR DAYTIME SHOULDER CLOSURES ARE 36" CONES . THE PRIMARY TRAffiC CONTROL DEVICES UTILIZED FOR NIGHTTIME SHOULDER

CLOSURES ARE PORT ABLE PLASTIC DRUMS. DURING DAYTIME SHOULDER CLOSURES, 42"

OVERSIZED CONES MAY BE SUBSTITUTED FOR 36" CONES. DURING NIGHTTIME SHOULDER

CLOSURES, 42" OVERSIZED CONES ARE PROHIBITED FOR USE. IF THIS TRAfFIC CONTROL

SETUP EXTENDS INTO THE HOURS OF DARKNESS, REPLACE ALL CONES, 36" OR 42"

OVERSIZED, WITH PORTABLE PLASTIC DRUMS.

9, THE 36" CONES UTILIZED DURING DAYLIGHT HOURS ARE NOT REQUIRED TO BE

REFLECTORIZED. REFLECTORIZE ALL 42" OVERSIZED CONES UTILIZED DURING DAYTIME

SHOULDER CLOSURES WITH TYPE III FLEXIBLE PRISMATIC RETROREFLECTIVE SHEETING UNLESS

OTHERWISE DIRECTED BY THE DEPARTMENT. REFLECTORIZE ALL PORT ABLE PLASTIC DRUMS

WITH TYPE III FLEXIBLE PRISMATIC RETROREFLECTIVE SHEETING UNLESS OTHERWISE DIRECTED

BY THE DEPARTMENT.

11. THE DEPAIRTMENT PROHIBITS CONDUCTING WORK ON PRIMARY AND SECONDARY ROUTES

WITHIN l' OF THE NEAR EDGE OF THE ADJACENT TRAVEL LANE UNDER A SHOULDER CLOSURE.

ALL WORK THAT MAY REQUIRE THE PRESENCE OF EQUIPMENT, PERSONNEL, MATERIALS OR

WORK VEHICLES WITHIN l' OF THE NEAIR EDGE OF THE ADJACENT TRAVEL LANE SHALL BE

CONDUCTED UNDER A LANE CLOSURE.

CASE I: WHENEVER ANY PORTION OF THE SHOULDER AREA WITHIN IS' BUT NOT CLOSER

THAN l ' OF THE NEAIR EDGE OF THE ADJACENT TRAVEL LANE MUST BE OCCUPIED

BY EQUIPMENT, PERSONNEL, MATERIALS OR WORK VEHICLES TO CONDUCT THE

WORK, INSTALL AND MAINTAIN THE SIGNING AND TRAFfiC CONTROL DEVICES AS

ILLUSTRATED.

CASE II: WHENEVER THE WORK IS CONDUCTED BEYOND IS' BUT WITHIN 30' OF THE NEAR

EDGE OF THE ADJACENT TRAVEL LANE, INCLUDING THE PRESENCE OF EQUIPMENT,

PERSONNEL, MATERIALS OR WORK VEHICLES, INSTALL AND MAINTAIN THE SIGNING

AND TRNTIC CONTROL AS ILLUSTRATED.

12. CONDUCT THE WORK IN SUCH A MANNER THAT WILL NOT REQUIRE ENCROACHMENT OF

TRAFFIC CONTROL DEVICES, EQUIPMENT, PERSONNEL, MATERIALS OR ANY WORK RELATED

VEHICLES WITHIN l' OF THE NEAR EDGE OF THE ADJACENT TRAVEL LANE.

13. PLACE THE TRUCK MOUNTED ATTENUATOR AT A LOCATION 100' IN ADVANCE OF THE WORK

ACTIVITY AND NO CLOSER THAN I' FROM THE NEAR EDGE OF THE ADJACENT TRAVEL LANE.

14. FOR A CASE I SCENARIO IN THE RIGHT SHOULDER AREA, ADJUST THE TAPER AS NECESSARY TO FIT THE WIDTH OF THE SHOULDER WHILE MAl NT AlNING THE REQUIRED 250' TAPER LENGTH.

15. IF WORK IS BEING CONDUCTED SIMULTANEOUSLY AT TWO DIFFERENT LOCATIONS AT THE

SAME TIME UNDER CASE I SHOULDER CLOSURES, SEPARATE THE TWO LOCATIONS BY NO

LESS THAN 1 MILE FROM THE END Of THE FIRST CASE I CLOSURE THAT A MOTORIST WILL

ENCOUNTER TO THE BEGINNING OF THE TAPER OF THE SECOND CASE I CLOSURE. A

MINIMUM SEPARATION DISTANCE OF ONE-HALF MILE IS RECOMMENDED BETWEEN SHOULDER

CLOSURES WHEN ONE OR BOTH SHOULDER CLOSURES IS A CASE II CLOSURE.

16. THE DEPARTMENT RESERVES THE RIGHT TO RESTRICT WORK OPERATIONS AND/OR WITHHOLD THE MONTHLY ESTIMATE IF THE TRAfFIC CONTROL IS NOT PROPERLY INSTALLED AND MAINT AlNED AS DIRECTED BY THE ST ANDAIRD SPECIFICATIONS, THE SPECIAL PROVISIONS, THE

STANDARD DRAWINGS, THE PLANS AND/OR THE ENGINEER.

17. THIS TYPICAL TRAfFIC CONTROL SETUP APPLIES TO THE INSTALLATION OF SHOULDER

CLOSURES IN THE RIGHT SHOULDER AREAS OF PRIMARY AND SECONDARY ROADWAYS.

THIS DRAWING IS NOT TO SCALE

USE 36" CONES AND SIGNING AS

ILLUSTRATED. CONES SHOULD

EXTEND THROUGH THE WORK AREA

AS NECESSARY.

-----in:;;;

D"

PORTABLE TRUCK MOUNTED ATTENUATOR

1. UTILIZE A TRUCK MOUNTED ATTENUATOR ATTACHED TO THE REAR OF A TRUCK WITH A

MINIMliM GROSS VEHICULAR WEIGHT (GVM) OF 15,000 POUNDS (ACTUAL WEIGHTl.' If THE

ADDITION OF SUPPLEMENTAL WEIGHT TO THE VEHICLE AS BALLAST IS NECESSARY, CONTAIN

THE MATERIAL WITHIN A STRUCTURE CONSTRUCTED OF STEEL. CONSTRUCT THIS STEEL

STRUCTURE TO HAVE A MINIMUM OF FOUR SIDES AND A BOTTOM. A TOP IS OPTIONAL.

BOL T THIS STRUCTURE TO THE fRAME OF THE TRUCK. UTILIZE A SUfFICIENT NUMBER OF

FASTENERS FOR ATTACHMENT OF THE STEEL STRUCTURE TO THE FRAME OF THE TRUCK

TO ENSURE THE STRUCTURE WILL NOT SEPARATE FROM THE FRAME OF THE TRUCK DURING

AN IMPACT UPON THE ATTACHED TRUCK MOUNTED ATTENUATOR. UTILIZE EITHER DRY LOOSE

SAND OR STEEL REINFORCED CONCRETE FOR BALLAST MATERIAL WITHIN THE STEEL

STRUCTURE TO ACHIEVE THE NECESSARY WEIGHT. THE BALLAST MATERIAL SHALL REMAIN

CONT AlNED WITHIN THE CONFINES OF THE STEEL STRUCTURE AND SHALL NOT PROTRUDE

FROM THE STEEL STRUCTURE IN ANY MANNER.

2. LOCATE THE TRUCK MOUNTED ATTENUATOR 100 FEET IN ADVANCE OF THE WORK AREA

UNLESS OTHERWISE SPECIFIED.

3. PROVIDE, INSTALL AND MAINTAIN THE TRUCK MOUNTED ATTENUATOR AS SPECIFIED BY THE ST A'lDAlRD SPECIFICATIONS AND AS DIRECTED BY THE ENGINEER.

CASE

500' 500'

1000' 500'

RIGHT SHOULDER

MEDIAN SHOULDER

CASE II

ADVANCE WARNING ARROW PANEL

ALL ADVANCE WARNING AlRROW PANELS SHALL BE 48" x 96" WITH A MINIMUM LEGIBILITY

DISTANCE OF 1 MILE. PLACEMENT OF AN ADVANCE WARNING ARROW PANEL MAY REQUIRE

ADJUSTMENTS DUE TO HORIZONTAL AND/OR VERTICAL ALIGNMENT OR OTHER SIGHT DISTANCE

RESTRICTIONS . THE PANEL FACE SHALL BE NONREFLECTIVE BLACK. ALL ADVANCE WARNING

ARROW PANELS SHALL COMPLY WITH THE STANDARD SPECIFICATONS FOR HIGHWAY

CONSTRUCTION, LATEST EDITION.

WHEN AN ADVANCE WARNING ARROW PANEL IS REQUIRED TO OPERATE IN THE CAUTION MODE,

THE ADVANCE WAIRNING ARROW PANEL SHALL DISPLAY THE "FOUR CORNERS" CAUTION MODE,

WITH ONE LAMP IN EACH CORNER. DISPLAY OF ANY OTHER TYPE OF CAUTION MODE OTHER

THAN THE "fOUR CORNERS" CAUTION MODE SUCH AS THE "FLASHING BAR" OR THE

" ALTERNATING DIAMOND" CAUTION MODES ARE UNACCEPTABLE AND PROHIBITED.

o 36" TRAfFIC CONES

'" 'i'

1. .AlL SIGN LOCATIONS ARE TO BE MEASURED FROM THE WORK AREA. WORK LIMITS FOR THE PROJECT WILL BE DETERMINED BY THE ENGINEER AND AS INDICATED IN THE CONTRACT .

2 . INST.AlL ADVANCE WARNING SIGNS MOUNTED ON PORTABLE SIGN SUPPORTS NO LESS THAN

GENERAL NOTES

12 . CONDUCT THE WORK IN SUCH A MANNER THAT WILL NOT REQUIRE ENCROACHMENT OF

TRAFF IC CONTROL DEVICES, EQUIPMENT, PERSONNEL, MATERIALS OR ANY WORK RELATED

VEHICLES WITHIN l' OF THE NEAR EDGE OF THE ADJACENT TRAVEL LANE.

13. PLACE THE TRUCK MOUNTED ATTENUATOR AT A LOCATION 100' IN ADVANCE OF THE WORK

ACTIVITY AND NO CLOSER THAN l' FROM THE NEAR EDGE OF THE ADJACENT TRAVEL LANE.

4 FEET FROM THE NEAR EDGE OF THE SIGN TO THE NEAR EDGE OF AN ADJACENT TRAVEL

LANE ON ROADWAYS WITH EARTH SHOULDERS AND NO LESS THAN 6 FEET FROM THE NEAR

EDGE OF THE SIGN TO THE NEAR EDGE OF AN ADJACENT TRAVEL LANE ON ROADWAYS

WITH PAVED SHOULDERS. WHEN CURB 8< GUTTER IS PRESENT, INSTALL THE SIGN NO LESS

THAN 2 FEET FROM THE NEAR EDGE OF THE SIGN TO THE FACE OF THE CURB.

8. THE PRIMARY TRAFFIC CONTROL DEVICES UTILIZED FOR DAYTIME SHOULDER CLOSURES ARE

36" CONES. THE PRIMARY TRAFFIC CONTROL DEVICES UTILIZED FOR NIGHTTIME SHOULDER

CLOSURES ARE PORT ABLE PLASTIC DRUMS. DURING DAYTIME SHOULDER CLOSURES. 42 "

OVERSIZED CONES MAY BE SUBSTITUTED FOR 36" CONES. DURING NIGHTTIME SHOULDER

CLOSURES. 42" OVERSIZED CONES ARE PROHIBITED FOR USE. IF THIS TRAFFIC CONTROL

SETUP EXTENDS INTO THE HOURS OF DARKNESS, REPLACE .AlL CONES, 36" OR 42"

OVERSIZED, WITH PORTABLE PLASTIC DRUMS.

9. THE 36" CONES UTILIZED DURING DAYLIGHT HOURS ARE NOT REQUIRED TO BE

14. FOR A CASE I SCENARIO IN THE LEFT SHOULDER AREA, ADJUST THE TAPER AS NECESSARY TO FIT THE WIDTH OF THE SHOULDER WHILE MAINTAINING THE REQUIRED 250' TAPER LENGTH.

3 . SPACINGS INDICATED ARE FOR NORMAL CONDITIONS; ADJUSTMENTS MAY BE REQUIRED DUE

TO HORIZONTAL AND/OR VERTICAL ALIGNMENTS OR OTHER SIGHT DISTANCE RESTRICTIONS.

4 . .AlL SIGNS MOUNTED ON PORTABLE SIGN SUPPORTS SH.AlL HAVE A MINIMUM MOUNTING HEIGHT

OF 5 FEET .FROM THE GROUND TO THE BOTTOM OF THE SIGN. ALL SIGNS MOUNTED ON

GROUND MOUNTED U-CHANNEL POSTS OR SQUARE STEEL TUBE POSTS SHALL HAVE A MINIMUM

MOUNTING HEIGHT OF 7 FEET FROM THE GRADE ELEVATION OF THE NEAR EDGE OF THE

ADJACENT TRAVEL LANE TO THE BOTTOM OF THE SIGN UNLESS OTHERWISE DIRECTED BY THE

DEPARTMENT. MOUNT ALL SIGNS STRAIGHT AND LEVEL AND WITH THE FACE OF THE SIGNS

PERPENDICULAR TO THE SURFACE OF THE ROADWAY.

REFLECTORIZED. REFLECTORIZE ALL 42" OVERSIZED CONES UTILIZED DURING DAYTIME

SHOULDER CLOSURES WITH TYPE III FLEXIBLE PRISMATIC RETROREFLECTIVE SHEETING UNLESS

OTHERWISE DIRECTED BY THE DEPARTMENT. REFLECTORIZE ALL PORTABLE PLASTIC DRUMS

WITH TYPE III FLEXIBLE PRISMATIC RETROREFLECTIVE SHEETING UNLESS OTHERWISE DIRECTED

BY THE DEPARTMENT.

11. THE DEPARTMENT PROHIBITS CONDUCTING WORK ON PRIMARY AND SECONDARY ROUTES

15. IF WORK IS BEING CONDUCTED SIMUL T ANEOUSL Y AT TWO DIFFERENT LOCATIONS AT THE

SAME TIME UNDER CASE I SHOULDER CLOSURES, SEPARATE THE TWO LOCATIONS BY NO

LESS THAN 1 MILE FROM THE END OF THE FIRST CASE I CLOSURE THAT A MOTORIST WILL

ENCOUNTER TO THE BEGINNING OF THE TAPER OF THE SECOND CASE I CLOSURE. A

MINIMUM SEPARATION DISTANCE OF ONE - HALF MILE IS RECOMMENDED BETWEEN SHOULDER

CLOSURES WHEN ONE OR BOTH SHOULDER CLOSURES IS A CASE II CLOSURE.

WITHIN l' OF THE NEAR EDGE OF THE ADJACENT TRAVEL LANE UNDER A SHOULDER CLOSURE.

ALL WORK THAT MAY REQUIRE THE PRESENCE OF EQUIPMENT, PERSONNEL, MATERI.AlS OR WORK VEHICLES WITHIN l' OF THE NEAR EDGE OF THE ADJACENT TRAVEL LANE SHALL BE

CONDUCTED UNDER A LANE CLOSURE.

16. THE DEPARTMENT RESERVES THE RIGHT TO RESTRICT WORK OPERATIONS ANDIOR WITHHOLD THE MONTHLY ESTIMATE IF THE TRAFFIC CONTROL IS NOT PROPERLY INST .AlLED AND MAiNT AlNED AS DIRECTED BY THE STANDARD SPECIFICATIONS, THE SPECI.Al PROVISIONS, THE

ST ANDARD DRAWINGS, THE PLANS AND/OR THE ENGINEER.

5 . REFLECTORIZE ORANGE ADVANCE WARNING SIGNS AND ANY ORANGE AREAS OF A MUL TI

COLORED ADVANCE WARNING SIGN WITH A FLUORESCENT ORANGE COLORED PRISMATIC

RETROREFLECTIVE SHEETING. REFLECTORIZE WHITE REGULATORY SIGNS AND ANY WHITE

AREAS OF A MULTI-COLORED ADVANCE WARNING SIGN WITH A WHITE COLORED PRISMATIC

RETROREFLECTIVE SHEETING.

CASE I' WHENEVER ANY PORTION OF THE SHOULDER AREA WITHIN 15' BUT NOT CLOSER

THAN l' OF THE NEAR EDGE OF THE ADJACENT TRAVEL LANE MUST BE OCCUPIED BY EQUIPMENT, PERSONNEL, MATERI.AlS OR WORK VEHICLES TO CONDUCT THE WORK, INST.AlL AND MAINTAIN THE SIGNING AND TRAFFIC CONTROL DEVICES AS

ILLUSTRATED.

17. THIS TYPICAL TRAFFIC CONTROL SETUP APPLIES TO THE INSTALLATION OF SHOULDER

CLOSURES IN THE LEFT SHOULDER AREAS OF PRIMARY AND SECONDARY ROADWAYS.

6. ALL TRAFFIC CONTROL DEVICES SHALL COMPLY WITH .AlL NCHRP REPORT 350

REQUIREMENTS AND SHALL REQUIRE APPROVAL BY THE DEPARTMENT. ONLY THOSE TRAFFIC

CONTROL DEVICES INCLUDED ON THE "APPROVED PRODUCTS LIST FOR TRAFFIC CONTROL

DEVICES IN WORK ZONES" ARE CONSIDERED ACCEPT ABLE FOR USE. THIS LIST MAY BE

ACCESSED ON THE DEPARTMENT'S WEB SITE AT' www.scdot.org •

7. THE CONTRACTOR SHALL PROVIDE AND UTILIZE ANY SPECIAL SIGN MOUNTING ASSEMBLIES

AND HARDWARE THAT MAY BE NECESSARY FOR INSTALLING AND MOUNTING SIGNS IN AREAS

OF CONCRETE MEDIAN BARRIER, BRIDGE PARAPET WALLS OR DOUBLEFACED GUARDRAIL.

CASE II: WHENEVER THE WORK IS CONDUCTED BEYOND 15' BUT WITHIN 30' OF THE NEAR

EDGE OF THE ADJACENT TRAVEL LANE, INCLUDING THE PRESENCE OF EQUIPMENT,

PERSONNEL, MATERIALS OR WORK VEHICLES, INSTALL AND MAINTAIN THE SIGNING

AND TRAFFIC CONTROL AS ILLUSTRATED.

o~z~~~ Ill::::>«

~~~~ CASE ~;~;~< D ~s~;;:

~~~:~- Il.g:j~~ :::':~:;;!OCl>- :;::o...J...J

INST ALL 36" CONES c 50' INTERVALS ~w~~~f!} •• ~~~~ AS ILLUSTRATED. THE CONES SHOULD I- F= (j ~(3 ~ ~UJoo EXTEND THROUGH THE WORK AREA AS 'i ~>~'<e w;:1:l:c NECESSARY. :r: o!:=

I- "'Il. ~~:::;: 1-;;;;:::;::;::

I N

250' TAPER 500' 500' 500'

- - - - - - - - - - - - - - -I- - - - - -t

500' l' MINIMUM ~

MEDIAN SHOUl DER T

I laO'

I ) ) ) n) '. t t 1 1IIIltJ. 1 u ~ --=:!--.- 0 l' MINIMUMt

- - - - I- - - -

500' 500' 250' TAPER

§ P ~ oog ::;; :!l11l~ ::;;

CASE 7 7

ADVANCE WARII.JING ARROW PANEL

ALL ADVANCE WARNING ARROW PANELS SHALL BE 48" x 96" WITH A MINIMUM LEGIBILITY

DISTANCE OF 1 MILE. PLACEMENT OF AN ADVANCE WARNING ARROW PANEL MAY REQUIRE

ADJUSTMENTS DUE TO HORIZONTAL AND/OR VERTICAL ALIGNMENT OR OTHER SIGHT DISTANCE

RESTRICTIONS. THE PANEL FACE SHALL BE NONREFLECTIVE BLACK. ALL ADVANCE WARNING

ARROW PANELS SHALL COMPLY WITH THE STANDARD SPECIFICATONS FOR HIGHWAY

CONSTRUCTION, LATEST EDITION.

I

WHEN AN ADVANCE WARNING ARROW PANEL IS REQUIRED TO OPERATE IN THE CAUTION MODE,

THE ADVANCE WARNING ARROW PANEL SHALL DISPLAY THE "FOUR CORNERS" CAUTION MODE,

WITH ONE LAMP IN EACH CORNER. DISPLAY OF ANY OTHER TYPE OF CAUTION MODE OTHER

THAN THE "FOUR CORNERS" CAUTION MODE SUCH AS THE "FLASHING BAR" OR THE

"ALTERNATING DIAMOND" CAUTION MODES ARE UNACCEPTABLE AND PROHIBITED.

tl' MINIMUM fl' MINIMUM I- - - - - -

~~z:t ;::~E5'U!F-t

:ig:i fTl f1~<~ fli ~r-~P1-1 OofTl~

D ~§~~fTl~ ~~~2l rrO~ -<~Of:M~ »»c ~;ll:r~~ ;;::-<::O't) 'Uzn~ . . »::OIfllnc _Cl OfTl -t~fTl;;::fTl~ Z"Tl~r ~~~~~8 fTlOfTlVl »C;o:r: rrr1:;u ;;0 l' MINIMUM ~ _r MINIMUM

0 'iLIE I \ "\ j j

S 100' I

~J:iI::1Ql!I..IJI;,!i

PORTABLE TRUCK MOUNTED ATTENUATOR

1. UTILIZE A TRUCK MOUNTED ATTENUATOR ATTACHED TO THE REAR OF A TRUCK WITH A

MINIMUM GROSS VEHICULAR WEIGHT (GVM) OF 15,000 POUNDS (ACTUAL WEIGHTl. IF THE ADDITION OF SUPPLEMENT.Al WEIGHT TO THE VEHICLE AS BALLAST IS NECESSARY, CONTAIN

THE MATERIAL WITHIN A STRUCTURE CONSTRUCTED OF STEEL. CONSTRUCT THIS STEEL

STRUCTURE TO HAVE A…