Notes for Figure 6H-5 6H-5(CA) —Typical Application 5 Shoulder Closure on a Freeway


  1. SHOULDER CLOSED signs should be used on limited-access highways where there is no opportunity for disabled vehicles to pull off the roadway.
  2. If drivers cannot see a pull-off area beyond the closed shoulder, information regarding the length of the shoulder closure should be provided in feet or miles, as appropriate.
  3. The use of a temporary traffic barrier should be based on engineering judgment.


  1. Temporary traffic barriers, if used, shall comply with the provisions of Section 6F.85.


  1. The barrier shown in this typical application is an example of one method that may be used to close a shoulder of a long-term project.
  2. The warning lights shown on the barrier may be used.


  1. Temporary traffic barriers, including their end treatments, shall be crashworthy. In order to mitigate the effect of striking the upstream end of a temporary traffic barrier, the end shall be installed in accordance with AASHTO’s “Roadside Design Guide” (see Section 1A.11) by flaring until the end is outside the acceptable clear zone or by providing crashworthy end treatments. See Section 6F.85 for more details.