TRAFFIC CONTROL PLAN FOR HIGHWAY WORK ZONE - DWG NO. 612 - General Notes

Oct 28, 2026

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Traffic Control Plan for Highway Work Zone DWG No. 612 outlines typical applications for two-lane, two-way rural or suburban temporary paved bypasses for day or night use. The plan specifies temporary bypass construction requirements, work area signage and barrier lighting, lane and edge line marking methods using reflective tape or approved markers, and conditions for removing conflicting pavement markings. General notes cover speed advisory signs, safe-speed determination, detour and reverse-turn signage, access maintenance for transit, pedestrians, and bicycles, and device consistency rules.

LanguageEnglish

CategoryResearch & Report

FormatPDF

Pages2

Reading Time5 min

AccessFree to download

Typical Applications

General Notes

Bridge Construction and Culvert Construction

Symbols and Work Area

Sign and Barricade Placement

Traffic Direction and Marking Requirements

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WI-4L
TYPICAL APPLICATIONS
BRIDGE CONSTRUCTION
CULVERT CONSTRUCTION
SYMBOLS
WORK AREA
SIGN ON PORTABLE OR PERMANENT SUPPORT
BARRICADE OR DRUM WITH STEADY BURNING LIGHT
VERTICAL PANEL
(SEE STANDARD DRAWING NO. 601 SHEET 1)
TYPE III BARRICADE
XX MPH
1. ALL TEMPORARY BYPASSES SHALL BE PAVED WHEN DURATION EXCEEDS TIME LIMITS ESTABLISHED BY THE ENTITY. GRADED & COMPACTED GRAVEL ACCEPTABLE FOR DURATIONS ESTABLISHED BY THE ENTITY. SEE SHEET 2 OF THIS DRAWING FOR UNPAVED TEMPORARY BYPASS.
2. ON PAVED BYPASSES, REFLECTIVE EDGE LINES AND A CENTER LINE REFLECTORIZED, REMOVABLE, NON-FOIL PAVEMENT
MARKING TAPE SHALL BE USED FOR MARKING THE EDGE LINES AND CENTER LINE ON EXISTING PAVEMENT. (REFLECTORIZED PAVEMENT MARKING PAINT MAY BE USED FOR MARKINGS ON THE PAVED BYPASSES. ) RAISED REFLECTIVE PAVEMENT MARKERS CONFORMING TO CLARK COUNTY STANDARDS MAY BE USED IN LIEU OF TAPE OR PAINT WHERE THE PAVEMENT MARKING IS TO BE PLACED ADJACENT TO BARRICADES OR VERTICAL PANELS. ALL EXISTING PAVEMENT MARKING WHICH CONFLICT WITH THE REVISED TRAFFIC PATTERN SHALL BE REMOVED. IF STRIPING IS TO BE PLACED ON FINAL PAVEMENT ONLY REMOVABLE, NON-FOIL TAPE SHALL BE USED.
EDGE LINE MARKINGS SHALL BE A MINIMUM OF 6 IN. WIDE.
3. WHEN (T) IS GREATER THAN 800 FEET, 4 FOOT LENGTHS OF SINGLE YELLOW REFLECTORIZED, REMOVABLE, NON-FOIL PAVEMENT MARKING TAPE AT 40 FOOT CENTERS MAY BE USED WITHIN THE TANGENT SECTION (ONLY IF PASSING ZONES CAN BE SAFELY ALLOWED IN ACCORDANCE WITH MUTCD SECTS. 3B-3 THRU. 3B-5) .
4. A CURVE SIGN WILL BE REQUIRED AT EXIT END OF THE BYPASS IF
(T) IS EQUAL TO OR GREATER THAN 1,000 FEET.
5. THE ADVISORY SAFE SPEED TO BE SHOWN BELOW THE REVERSE CURVE (TURN) SIGNS SHALL BE DETERMINED AT THE SITE AND APPROVED BY THE TRAFFIC ENGINEER.
TRAFFIC DIRECTION
6. STEADY BURNING LIGHTS WILL NOT BE REQUIRED ON BARRICADES FOR DAY OPERATIONS.
7. CONES MAY BE SUBSTITUTED FOR BARRICADES AT HALF THE SPACING DURING DAY OPERATIONS.
8. ALL SIGNS SHALL BE GROUND-MOUNTED IF THE CLOSURE TIME EXCEEDS FOUR DAYS AND AS REQUIRED BY SECTION 625 OF THE UNIFORM STANDARD SPECIFICATIONS.
9. TYPE "B" HIGH INTENSITY FLASHING WARNING LIGHTS MAY BE INSTALLED ABOVE EACH WORK ZONE CONSTRUCTION SIGN FOR USE DURING HOURS OF DARKNESS.
10. LONGITUDINAL DIMENSIONS MAY BE ADJUSTED TO FIT FIELD CONDITIONS BY THE TRAFFIC ENGINEER.
11. ALL BARRICADE LIGHTS SHALL BE BIDIRECTIONAL.
12. ALL WARNING SIGNS SHALL HAVE BLACK LEGEND AND BORDER ON AN ORANGE BACKGROUND. ALL SIGNS HAVING AN ORANGE COLOR SHALL BE MADE OF MATERIALS CONFORMING TO SECTION 716.03.01 OF THE UNIFORM STANDARD SPECIFICATIONS.
13. TABLE FOR SPACING OF ADVANCE WARNING SIGNS
TABLE FOR SPACING OF ADVANCE WARNING SIGNS ROAD TYPE DISTANCE BETWEEN SIGNS (FT) A B C URBAN (LESS THAN 35 MPH) URBAN (35 MPH OR GREATER) RURAL
EXPRESSWAY/FREEWAY 200
350
500
1000 200
350
500
1600 200
350
500
2600
14. ALL DEVICES INDICATED SHALL BE OF ONE TYPE; DEVICES SHALL NOT BE MIXED.
15. IF WORKING AT OR NEAR A TRAFFIC SIGNAL, CONTACT LVACTS AT 229-6611 AND LOCAL ENTITY AT APPROPRIATE NUMBERS LISTED BELOW AT LEAST TWO WORKING DAYS PRIOR TO BEGINNING WORK.
BOULDER CITY CLARK COUNTY HENDERSON LAS VEGAS
293-9200 455-6100 565-2140 229-6331
MESQUITE
NORTH LAS VEGAS
346-5295 642-2462
16. WHERE THE TEMPORARY PAVEMENT AND OLD PAVEMENT ARE DIFFERENT COLORS, THE TEMPORARY PAVEMENT SHOULD START
ON THE TANGENT OF THE EXISTING PAVEMENT AND END ON THE TANGENT OF THE EXISTING PAVEMENT.
17. ACCESS FOR CAT TRANSIT SERVICE, PEDESTRIANS AND BICYCLES SHALL BE MAINTAINED THROUGHOUT DURATION OF CONSTRUCTION. IF RE-ROUTING OF ACCESS IS NECESSARY, THE CONTRACTOR SHALL PROVIDE THE ENTITY'S TRAFFIC ENGINEER WITH A MAP SHOWING THE PROPOSED RE-ROUTES FOR APPROVAL. IF CONSTRUCTION OPERATIONS AFFECT CAT BUS STOPS OR FACILITIES, THE CONTRACTORSHALL NOTIFY THE REGIONAL TRANSPORTATION COMMISSION AT 455-4481 AT LEAST 3 NORMAL WORKING DAY

FAQs

What are the requirements for temporary bypass pavements in this plan?

Temporary unpaved bypasses must be graded and compacted gravel within time limits set by the entity. For paved bypasses, reflective edge lines and a center line use removable, non-foil pavement marking tape, with optional raised reflective pavement markers per local standards where applicable.

How should traffic markings be handled when the traffic pattern changes?

Existing pavement markings conflicting with the revised traffic pattern must be removed. If striping is placed only on final pavement, removable non-foil tape must be used.

What access and coordination requirements apply during construction?

Access for CAT transit service, pedestrians, and bicycles must be maintained throughout the construction duration. If rerouting is needed, the contractor provides a map to the traffic engineer for approval, and notifies the Regional Transportation Commission if CAT bus stops or facilities are affected.

Oct 28, 2026

Upload by Aria