Attachment B.pdf

REFEREN CES

WORK ZONE TRAFFIC

CONTROL ENGINEER

1- 0 I- a :3~6~ . wn: I

8~~g I-Z l-oVl ?:~ w ~ ~~g~~~ uwa..lJ

~~:;;~~~ti U 0

«z~~ ..... 1- ~...J~w--l Cl\!iz~'2!~ Qt-~~~~8 >WZu W

~~~~~I- Vl~\!izz-'I ~~5~~

:E~~8~~ oc...:::;>c...

g~~;:eJ« ~:;;~Q:;;

D * :::;>....Ju.c...~ dol-t;;:~ez z~'W~ y~<tO<:J>- ~~5~U§E;;: rn

5\!i~;:\!i ~w~tj8eJ *<:J~I<:J . . >o'a:°il::;:~ t-~d~3~ ~~:~~~~ eJ:?; <Ct;;: 6

~ ~6~~ WIIO~Z -.;.. ;l~;:'2!~ l-oIJa..<c_:::; !bIDI-VlUOO ~:;;?:~:?:

I .2 MILE MAX. z-----''--------I ..... -l-=:;..::;....;.:=.:.:- I o o

~ LEFT LANE CLOSURE

1. SIGNS ILLUSTRATED ARE FOR A RIGHT LANE CLOSURE.

* <Xl -<t

* ro ..i-

[J] n:

[fa ~

"11 1111 1 1 "

800' TAPrn

TYPE II BARRICADES

CI 50' SPACING

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

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

2 - W4-2L - 48 1 - 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.

w ~ U Cl ~...J~w...J >WZu W

* ~~g~~ <fl oc...:::;>c... 'r ~:?:~~:?: <Xl <Xl

~ f Z~ I W~ g\!if~\!i -<t '" * <:J:?:I<:J n: n:

eJ6«t;;:~ ;l~~'2!~

500'

SHOULDER

1 1

~ <Xl '!; ~ ... 1. ro -<t no ro '" ..i- 1. -<t

..i- n:

~ :?: N

II:: I"l

ADV ANCE WARNING ARROW PANEL

* W ro -<t no <fl o

600' 1300' ro -<t no

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 ANDIOR 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

Z L'> w Z Vi o ..... Q W .... ~t;;:

~ ~ ~t5g * ~w~~

~ WI-O I Z

:::EO UL'> :i wZi.OwUl

~~~~t5 ro ... w I-Z« no ~ ~a~ ~ I -o~ 0 U

1340' ro

II:: .,.,

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

UL.A..>.L.I· ...... "LEFT LANE CLOSED" , "MERGE RIGHT" . "AL TERNATING DIAMOND" CAUTION MODES ARE UNACCEPTABLE AND PROHIBITED.

2-18-11 JCS GENERAL UPDATE

3-06-09 JCS TITLE I NOTE UPDATES

8-22-07 CS DRAWING NO. UPDATE

# DATE OESeR I PT [ [IN

SOUTH CARD- INA O£PARIM:NT OF TftANSPORTATleJi

DESIGN STANDARDS OFFICE

955 PARK STREET

ROOM 405

COLUMBIA. SC 29201

STANDARD DRAWING

LANE CLOSURE

DAYTIME

MAINLINE

COMPONENTS

INTERSTATE ROUTES

610-105-01

EFFECTIVE LETTING DATE

GENERAL NOTES

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

2.

3.

4.

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

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.

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

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

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 MOUN TED 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 NlVANCE 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 PARAPET WALLS OR DOUBLEF ACED 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 PORTABLE PLASTIC DRUMS AND 42" OVERSIZED TRAFFIC CONES WITH

TYPE III FLEXIBLE PRISMATIC RETROREFLECTIVE SHEETING UNLESS OTHERWISE DIRECTED BY

THE DEPARTMENT.

9. REFLECTORIZE ALL BARRICNlES 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.

THIS DRAWING IS NOT TO SCALE

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 CON TROL 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 lOR 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 AN INTERSTATE 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.

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 AN INTERSTATE ROADWAY, SEPARATE THE TWO 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. A TRAILER MOUNTED CHANGEABLE MESSAGE SIGN IS REQUIRED FOR THIS TRAFFIC CONTROL

SETUP FOR AN INTERSTATE LANE CLOSURE. INSTALL THE CHANGEABLE MESSAGE 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 SETUP, THE SIGN SHOULD FLASH

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

THE MOTORISTS TO READ BOTH MESSAGES AT LEAST ONCE.

16. THE DEPARTMENT RESERVES THE RIGHT TO RESTRICT WORK OPERATIONS ANOIOR 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 ANDIOR THE ENGINEER.

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

ON AN INTERSTATE ROADWAY WITH A POSTED REGULATORY SPEED LIMITED OF 55 MPH OR

GREATER.

[J w w <:J I U

8 LLJ t-Z

0: ZL'>

gii'i eta :::;w <:J LLJI-- y«

UVl 0: :::>Vl D- n:w

0-:::;

w u.I O t-Vl w w"":::;

uO i= ~w !!i~<t 0>1- :::; ~<c :::> W :it-:::> wO

~g~ <an:

:::;"'1-

SEE STANDARD DRAWING NO. 610 - 105- 02 FOR THE

TRAFFIC CONTROL SETUPS FOR ENTRANCE AND EXIT

RAMPS DURING INTERSTATE LANE CLOSURES.

LANE CLOSURE LOCATION NOTE:

WHEN INSTALLING A LANE CLOSURE IN THE

VICIN ITY OF AN INTERCHANGE, INSTALL THE

LANE CLOSURE TO PROVIDE NO LESS · THAN

500 FEET BETWEEN THE DOWNSTREAM END

OF THE TAPER AREA OF THE LANE CLOSURE

AND THE INITIAL RAMP EI'JCOUNTERED WITHIN

THE INTERCHANGE.

** TRUCK MOUNTED CHANGEABLE MESSAGE SIGN **

PREPARE TO STOP NOTIFICATION

1. SUPPLEMENT EACH LANE CLOSURE THAT MAY GENERATE A TRAFFIC QUEUE WITH A

TRUCK MOUNTED CHANGEABLE MESSAGE SIGN. THE SIGN SHALL PROVIDE ADVANCE

NOTICE TO MOTORISTS TO BE PREPARED TO STOP DUE TO A TRAFFIC QUEUE.

2. PLACE A TRUCK MOUNTED CHANGEBLE MESSAGE SIGN, MANNED WITH AN OPERATOR

AT ALL TIMES, ON THE SHOULDER OF THE RONlWAY IMMEDIATELY UPON

DEVELOPMENT OF A TRAFFIC QUEUE. THE TRUCK MOUNTED CHANGEABLE MESSAGE

SIGN SHALL REMAIN NO LESS THAN 2000 FEET IN NlV ANCE OF THE TRAFFIC

QUEUE AT ALL TIMES. PRESENCE OF THE TRUCK ON THE ROADWAY SHOULDER

WITHOUT AN OPERATOR IS PROHIBITED AND SHALL INITIATE IMMEDIATE CESSATION

OF WORK OPERATIONS THAT REQUIRE THE LANE CLOSURE.

3. A TRUCK MOUNTED ATTENUATOR IS NOT REQUIRED WHEN THE TRUCK MOUNTED

CHANGEABLE MESSAGE SIGN IS MOUNTED ON A TRUCK WITH A GROSS VEHICULAR

WEIGHT OF 5000 LBS. OR LESS. OTHERWISE, THE TRUCK SHALL HAVE THE

CAPABILITY TO SUPPORT A TRUCK MOUNTED ATTENUATOR AND SHALL THEREFDRE

BE SUPPPLEMENTED WITH A TRUCK MOUNTED ATTENUATOR.

4 . PROVIDE, INSTALL AND MAINTAIN ALL TRUCK MOUNTED CHANGEABLE MESSAGE

SIGNS AS DIRECTED BY THE STANDARD SPECIFICATIONS, THE SPECIAL PROVISIONS,

THE STANDARD DRAWINGS, THE PLANS AND/OR THE ENGINEER.

5. THE DEPARTMENT PROHIBITS CONDUCTING WORK AND MAINTAINING A LANE CLOSURE

THAT GENERATES A TRAFFIC QUEUE WITHOUT THE PRESENCE OF A TRUCK

MOUNTED CHANGEABLE MESSAGE SIGN ON THE RONlWAY SHOULDER TO PROVIDE

ADVANCE NOTICE TO MOTORISTS TO BE PREPARED TO STOP. THE DEPARTMENT

SHALL INITIATE AN IMMEDIATE CESSATION OF WORK OPERATIONS TO PERMIT

REMOVAL OF THE LANE CLOSURE IF A TRUCK MOUNTED CHANGEABLE MESSAGE

SIGN IS NOT PROPERLY PLACED, MANNED AND OPERATING WHEN . A TRAFFIC QUEUE

DEVELOPS.

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

NlDITION 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 NlVANCE OF THE WORK AREA

UNLESS OTHERWISE SPECIFIED.

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

ST ANDARD 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 NlVANCE 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.

o 36" TRAFFIC CONES