Weight Limit Signs And Where to Place Them
Standard:
(06) If used, the Weight Limit signs (see Figure 2B-29) shall be located not more than 50 ft in advance of the applicable section of highway or structure and a suitable distance from each end to enable prohibited vehicles to take a different route per Section 257.631(5) of the “Michigan Vehicle Code.” Guidance:
(07) If used, the Weight Limit sign with an advisory distance ahead legend should be placed at approach road intersections or other points where prohibited vehicles can detour or turn around.
Source: Michigan Manual On Traffic Control Devices - (Page 99)