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Shoulder Work Ahead Signs



Shoulder Work Ahead Sign

SKU# W21-5-AHD

Customer Reviews


The purpose of Shoulder Work Ahead Signs (MUTCD W21-5) is to inform drivers that maintenance or construction activities are taking place on the road's shoulder. What is the shoulder of the road? The shoulder of the road is a paved or unpaved strip of land adjacent to the roadway, providing a safe area for emergency stops, breakdowns, or for use by pedestrians and cyclists when necessary.

MUTCD W21-5 Guidance



Shoulder Work Ahead Sign Details:

  • Sign is manufactured on durable rust-proof .080" aluminum
  • Pre-punched 3/8" mounting holes in top and bottom for easy installation.
  • Meets M.U.T.C.D. specifications for highway use.

In Stock - Usually ships same or next business day.



High Intensity Prismatic Reflective on .080" Aluminum:

MATERIAL SIZE PRICE PER SIGN ADD TO CART Catalog Part #
1 to 2 3 to 5 6 +
High Intensity Prismatic
High Intensity Prismatic
30" x 30" $95.37 $85.83 $81.06
W21-5-AHD-3030-HIP
36" x 36" $145.97 $131.37 $124.07
W21-5-AHD-3636-HIP
48" x 48" $226.93 $204.24 $192.89
W21-5-AHD-4848-HIP


Fluorescent Orange Prismatic Reflective on .080" Aluminum:

MATERIAL SIZE PRICE PER SIGN ADD TO CART Catalog Part #
1 to 2 3 to 5 6 +
Fluorescent Orange Prismatic
Fluorescent Orange Prismatic
30" x 30" $111.87 $100.68 $95.09
W21-5-AHD-3030-FLO
36" x 36" $154.77 $139.29 $131.55
W21-5-AHD-3636-FLO
48" x 48" $245.19 $220.67 $208.41
W21-5-AHD-4848-FLO




Available Reflective Finishes:

High Intensity Prismatic Reflective Fluorescent Orange Prismatic Reflective
High Intensity Prismatic
Pick traffic sign finish
  • Most common reflective finish used for traffic signs
  • Meets federal minimum requirements
  • 10 Year Outdoor Durability
Fluorescent Orange Prismatic
Pick traffic sign finish
  • Brightest and most visible
  • Exceeds federal minimum requirements
  • 10 Year Outdoor Durability



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Sign Posts

A galvanized u channel postA picture of a green u channel sign postA round post used to install signsA picture of a square post that has holes from top to bottom






Sign Installation Hardware

A picture of different hardware used for sign mountingDifferent break away hardware for safely install signs



Other Work Zone Signs

Road Work AheadDetour AheadRoad Closed AheadOne Lane Road AheadRight Lane Closed AheadLeft Lane Closed AheadTwo Right Lanes Closed AheadTwo Left Lanes Closed AheadRoad Machinery AheadCenter Lane Closed AheadShoulder WorkRight Shoulder ClosedLeft Shoulder ClosedRight Shoulder Closed AheadLeft Shoulder Closed AheadSurvey CrewUtility Work AheadMowing AheadBlasting Zone AheadStop Ahead (symbol)Yield Ahead (symbol)Work Zone Speed Reduction Symbol With Speed LimitWork Zone Speed Zone AheadReduced Speed AheadFlagger Ahead (symbol)Be Prepared To StopWorkers (symbol)New Traffic Pattern AheadRight Lane Ends SymbolLeft Lane Ends SymbolTrucks Entering HighwayConstruction Entrance AheadShoulder ClosedShoulder Work AheadShoulder Closed AheadConstruction AheadCustom Road Work








Specifications:

Legend: SHOULDER WORK AHEAD
MUTCD Sign Code #: W21-5-AHD
Shape: Diamond
Color: BLACK on ORANGE
Available Sizes and Weights:Size: 30" x 30"; Ship Weight: 7.8 lbs
Size: 36" x 36"; Ship Weight: 11.2 lbs
Size: 48" x 48"; Ship Weight: 19.9 lbs
Available Styles:High Intensity Prismatic Reflective on .080" Aluminum
Fluorescent Orange Prismatic Reflective on .080" Aluminum
Full Description:

W21-5-AHD have a orange background color. The text and border are black and it is in the shape of a diamond.

Mounting Hole Placement: Mounting Hole Diagram for Shoulder Work Ahead Sign




Example Use:

On Interstate I-70, as drivers cruise at highway speeds, they encounter a bright orange 'Shoulder Work Ahead' sign positioned prominently on the right-hand side of the road. This sign alerts them that upcoming maintenance or construction activities are taking place on the shoulder. The warning gives drivers an opportunity to be extra cautious, watch out for workers, equipment, or any obstructions, and potentially merge left if necessary.























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