Popular Construction-Regulatory-Warning Signage > Temporary Construction Area Signage
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C9A (CA) FLAGGER AHEAD SYMBOL
Typical Use:
In advance of one way traffic control.
Typical Size:
36" x 36" for use with traffic speed less than 45 MPH
48" x 48" for use with traffic speeds at 45 MPH or greater
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C12 (CA) NARROW LANE
Typical Use:
In advance of a reduction in the width of an open traffic lane.
Typical Size:
36" x 36" for use with traffic speed less than 45 MPH
48" x 48" for use with traffic speeds at 45 MPH or greater
Alternate:
ROAD NARROWS
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C17(CA) SPEED LIMIT XX
Typical Use:
Within 400ft of a work zone, where workers are on the roadway or immediately adjacent as to be endangered by traffic. This sign must be removed when workers are no longer on the roadway, and may not be used on state highways.
Typical Size:
24" x 24" for all speeds.
Alternate:
Speed Limits 30-45 MPH
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C24(CA) SHOULDER WORK AHEAD
Typical Use:
In advance of shoulder work, which does not encroach into the travel lane.
Typical Size:
36" x 36" for use with traffic speed less than 45 MPH.
48" x 48" for use with traffic speeds at 45 MPH or greater.
Alternate:
W21-5 SHOULDER WORK
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C27(CA) OPEN TRENCH
Typical Use:
Within a closure, where open excavations exist.
Typical Size:
24" x 24" All speeds.
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C30B (CA) BIKE LANE CLOSED
Typical Use:
Within a bike lane closure to provide clear guidance to raod users.
Typical Size:
30" x 30" for all speeds.
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C30 (CA) LANE CLOSED
Typical Use:
Within a lane closure to provide clear guidance to road users.
Typical Size:
30" x 30" for all speeds
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C30A (CA) SHOULDER CLOSED
Typical Use:
Within a shoulder closure to provide clear guidance to road users.
Typical Size:
30" x 30" for all speeds
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C40 (CA) TRAFFIC FINES DOUBLED IN WORK ZONES
Typical Use:
In advance of a work zone, usually as the first advanced warning sign.
Typical Size:
36" x 36" for use with traffic speed less than 45 MPH
48" x 48" for use with traffic speeds at 45 MPH or greater
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G20-2 END ROAD WORK
Typical Use:
To indicate the end of a work zone.
Typical Size:
36" x 18" for all speeds.
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M4-8A END DETOUR
Typical Use:
To indicate the end of a detour route.
Typical Size:
30" x 18" for all speeds.
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M4-10 RT DETOUR RIGHT
Typical Use:
To delineate a detour route for a full road closure.
Typical Size:
36" x 18" for all speeds.
Alternate:
M4-10LT DETOUR LEFT
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SC3 (CA) DETOUR STRAIGHT
Typical Use:
To delineate a detour route for a full road closure.
Typical Size:
36" x 18" for all speeds.
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SC5 (CA) SPECIAL EVENT AHEAD
Typical Use:
In place of a W20-1, when traffic control is set up for a race, parade or other planned special event.
Typical Size:
36" x 36" for use with traffic speed less than 45 MPH
48" x 48" for use with traffic speeds at 45 MPH or greater
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SC6 (CA) ADVANCE NOTICE SIGN
Typical Use:
Prior to a period of road work which will close or restrict traffic on a road or off ramp.
Typical Size:
48" x 60" when used on a freeway project.
48" x 48" for most surface street closures.
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SC9 (CA) FREEWAY DETOUR
Typical Use:
To direct motorists around a full freeway closure.
Typical Size:
36" x 36" all speeds.
Alternate:
Arrow can point straight, up left or up right
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W20-1 ROAD WORK AHEAD
Typical Use:
In advance of road work that is immediately adjacent or encroaches into the travelled way; or that may be a visual distraction to motorists.
Typical Size:
36" x 36" for use with traffic speed less than 45 MPH
48" x 48" for use with traffic speeds at 45 MPH or greater
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W20-2 DETOUR AHEAD
Typical Use:
In advance of lane or road closure, where traffic is taken out of it's regular travel lane(s).
Typical Size:
36" x 36" for use with traffic speed less than 45 MPH
48" x 48" for use with traffic speeds at 45 MPH or greater
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W20-3 ROAD CLOSED AHEAD
Typical Use:
In advance of a full road closure, with or without a detour.
Typical Size:
36" x 36" for use with traffic speed less than 45 MPH
48" x 48" for use with traffic speeds at 45 MPH or greater
Alternate:
W20-3 RAMP CLOSED AHEAD
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W20-4 ONE LANE ROAD AHEAD
Typical Use:
In advance of one way traffic control.
Typical Size:
36" x 36" for use with traffic speed less than 45 MPH
48" x 48" for use with traffic speeds at 45 MPH or greater
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W20-5 RT RIGHT LANE CLOSED AHEAD
Typical Use:
In advance of a lane closure on a multi-lane road.
Typical Size:
36" x 36" for use with traffic speed less than 45 MPH
48" x 48" for use with traffic speeds at 45 MPH or greater
Alternate:
LEFT, BIKE, TURN & CENTER patches to cover RIGHT
2, 3 & 4 patches to add above RIGHT LANE when multiple lanes are closed.
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W21-1A WORKERS SYMBOL
Typical Use:
In advance of short term maintenance work.
Typical Size:
36" x 36" for use with traffic speed less than 45 MPH
48" x 48" for use with traffic speeds at 45 MPH or greater
Alternate:
W20-1 ROAD WORK AHEAD
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W21-1 FRESH OIL
Typical Use:
Within a closure; where tack, seal or oil has been placed.
Typical Size:
24" x 24" All speeds.
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W21-5 SHOULDER WORK
Typical Use:
In advance of shoulder work, which does not encroach into a traffic lane.
Typical Size:
36" x 36" for use with traffic speed less than 45 MPH
48" x 48" for use with traffic speeds at 45 MPH or greater
Alternate:
C24 (CA) SHOULDER WORK AHEAD
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W21-5B LT LEFT SHOULDER CLOSED AHEAD
Typical Use:
In advance of a shoulder closure.
Typical Size:
36" x 36" for use with traffic speed less than 45 MPH
48" x 48" for use with traffic speeds at 45 MPH or greater
Alternate:
W21-5B RT RIGHT SHOULDER CLOSED AHEAD
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W1-4 RT REVERSING CURVE SYMBOL RIGHT
Typical Use:
In advance of a horizontal shift in a travel lane which can be safely made at speeds at, or in excess of, 30 MPH.
Typical Size:
36" x 36" for use with traffic speed less than 45 MPH
48" x 48" for use with traffic speeds at 45 MPH or greater
Alternate:
W1-4 LT REVERSING CURVE SYMBOL LEFT
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W1-6 SINGLE ARROW
Typical Use:
To provide clear guidance to road users with in closure, but not as "detour" arrows.
Typical Size:
36" x 18" for all speeds
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W3-4 BE PREPARED TO STOP
Typical Use:
In advance of one way traffic control. Used with C9(CA) FLAGGER AHEAD SYMBOL and/or W20-4 ONE LANE ROAD AHEAD.
Typical Size:
36" x 36" for use with traffic speed less than 45 MPH
48" x 48" for use with traffic speeds at 45 MPH or greater
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W4-2 LT MERGE RIGHT SYMBOL
Typical Use:
In advance of a lane closure on a multi-lane road.
Typical Size:
36" x 36" for use with traffic speed less than 45 MPH
48" x 48" for use with traffic speeds at 45 MPH or greater
Alternate:
W4-2 RT MERGE LEFT SYMBOL
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W8-6 TRUCK CROSSING
Typical Use:
In advance of truck traffic entering the highway, usually at slow speeds and often with flagger control.
Typical Size:
36" x 36" for use with traffic speed less than 45 MPH
48" x 48" for use with traffic speeds at 45 MPH or greater
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W8-7 LOOSE GRAVEL
Typical Use:
Within a project, where loose gravel is on the highway.
Typical Size:
30" x 30" for all speeds.
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W12-1
Typical Use:
At the point of an obstruction or closure, where traffic moving in the same direction may pass on either side.
Typical Size:
36" x 36" for all speeds.
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R9-3A NO PEDESTRIAN SYMBOL
Typical Use:
At the point of a sidewalk or crosswalk closure.
Typical Size:
18" x 18"
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R9-9 SIDEWALK CLOSED
Typical Use:
At the point of a sidewalk closure.
Typical Size:
24" x 18"
Alternate:
R9-3A NO PEDESTRIAN SYMBOL
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R9-11A LT SIDEWALK CLOSED CROSS HERE W/ARROW LEFT
Typical Use:
At the point of, or in advance of a sidewalk closure where there is safe pedestrian access to the other side of the street.
Typical Size:
24" x 12"
Alternate:
R9-11A RT SIDEWALK CLOSED CROSS HERE W/ ARROW RIGHT
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R11-2 ROAD CLOSED
Typical Use:
At the point of a full road closure, with no access permitted.
Typical Size:
36" x 24" for all speeds
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R11-4 ROAD CLOSED TO THRU TRAFFIC
Typical Use:
In advance, or at the point of a road closure, where limited local access is permitted.
Typical Size:
36" x 24" for all speeds