Specifications include, but are not limited to: Item: 28-inch, 7-pound traffic cone.
Size: Height 28” min., 29” max.
Base shall be square and have a minimum dimension of 15” x 15” +/- 1”
Outside diameter at the top of cone shall be 2” minimum.
Color: High Visibility Fluorescent orange (Cone and Base)
Type: Polyvinyl chloride, UV stabilized, molded in one piece or the upper conical portion shall be permanently fused
and joined to the base section forming one integral unit.
The cone must be self supporting.
The cone, when placed in its normal position on a flat surface and folded at a point near the middle of its
vertical height so that the upper tip touches the surface on which the base is resting, will return to its
original vertical position within 20 seconds. This test will be done at ambient room temperature.
Must meet MUTCD and NCHRP-350 Requirements
Base: Base shall be weighted to provide a low center of gravity for stability. The weight of the base shall be at least
60 percent of the total weight of the cone.
Weight: The complete unit (base and cone) shall have a minimum weight of 7 pounds and a maximum of 8
Marking: "NHDOT" to be marked in 1”-inch min black letters vertically on both sides of cone (180 deg opposite)
between the lower reflective band and the base.
Collars: The collars shall be retroreflective prismatic flexible sheeting designed for use with flexible traffic cones
per ASTM D 4956 Type IV. Each cone shall have two white retroreflective collars. The upper collar shall
be 6 inches wide located 3 to 4 inches from the top of the cone and lower collar shall be 4 inches
wide, located 2 inches (+/- ½”) below 6-inch collar.