Typically, the height of delineators is

approximately

4 ft above the

near

edge of the

pavement to the bottom of the lowest retroreflective device.

Delineators are located 2-8 ft from the edge of the pavement. All delineators on a stretch of highway should be the same distance from the edge of the pavement, except where a restriction exists (such as guardrail, culvert headway, or other obstruction). Where a restriction exists, the delineators should be in line with the inner most edge of the obstruction. Figure 8-9 depicts typical delineator placement.

When delineators are installed further than 8 ft from the edge of the pavement, it may not be practical to provide a height of 4 ft. In this case, the delineator is installed so the reflective unit is as close to 4 ft above the surface of the pavement edge as practical.

Delineators may be attached to a vertical support. An example includes along guardrail posts

or cable barrier

. Figure 8-10 illustrates examples of delineators attached to guardrail posts.