Frequently Purchased Together
Rigid Aluminum SignsLet motorists know there is shoulder work ahead, and may be closed due to road work, construction, or men at work. This orange Shoulder Work sign is available in .080″ Fluorescent Diamond Grade Work Zone Reflective Aluminum and is MUTCD compliant.
Rigid signs material grades
- .080" Fluorescent Diamond Grade Work Zone Reflective Aluminum signs are MUTCD compliant when used day or night.
Rigid Sign Bracket / Stand Compatibility
- Compatible only with Rigid Sign Brackets
- List of products on the website with Rigid Sign Brackets
Rigid Sign Features
- Sign Weight: 11 lb
- Mounting holes: 2 holes at 3/8" diameter, positioned top and bottom
2009 Edition Part 6 Figure 6F-2. Methods of Mounting Signs Other Than on Posts
The fourth example shows an orange diamond-shaped sign with a black border and letters with the words "UTILITY WORK AHEAD" in three lines mounted on a vertical pole that is mounted on four horizontal supports. The distance from the bottom of the sign to the bottom of the supports is labeled as "1 ft MIN. above the traveled way." At the top of the sign, three orange flags are shown mounted equidistant apart from each other on short staffs that extend out from the top of the vertical pole at 45-degree angles.
Section 6F.37 Shoulder Work Signs
- Shoulder Work signs (see Figure 6F-4) warn of maintenance, reconstruction, or utility operations on the highway shoulder where the roadway is unobstructed.
- The Shoulder Work sign shall have the legend SHOULDER WORK (W21-5), RIGHT (LEFT) SHOULDER CLOSED (W21-5a), or RIGHT (LEFT) SHOULDER CLOSED XX FT or AHEAD (W21-5b).
- The Shoulder Work sign may be used in advance of the point on a non-limited access highway where there is shoulder work. It may be used singly or in combination with a ROAD WORK NEXT XX MILES or ROAD WORK AHEAD sign.
- On freeways and expressways, the RIGHT (LEFT) SHOULDER CLOSED XX FT or AHEAD (W21-5b) sign followed by RIGHT (LEFT) SHOULDER CLOSED (W21-5a) sign should be used in advance of the point where the shoulder work occurs and should be preceded by a ROAD WORK AHEAD sign.
Source: 2009 MUTCD
When to Use 36″ and 48″ Temporary Warning Signs
According to the MUTCD:
|Type of Roadway
|36 × 36″
|Freeway or Expressway
|48 × 48″
Transportation engineers may find this answer acceptable since they have a deeper understanding of the MUTCD than most, but not everyone has this knowledge. Luckily, definitions of these terms are provided to help make some sense of what they are trying to convey. Here’s how the MUTCD defines each of those types of roadways:
- "Conventional Road" is a "street or highway other than a low-volume road, expressway, or freeway."
- "Low-Volume Road" is a facility lying outside of developed areas of cities, towns, and communities, which serves fewer than 400 vehicles per day on average. A low-volume road shall not be a freeway, an expressway, an interchange ramp, a freeway service road, a road on a designated State highway system, or a residential street in a neighborhood.
- "Expressway" is a divided highway with partial control of access.
- "Freeway" is a divided highway with full control of access.
Still confused? It's not just you. Generally speaking, if the road is a divided highway with a concrete barrier or median, a 48 × 48″ sign will be required. A 36 × 36″ sign can be used on all other types of roadways.