Plaque mounting details
Milestone plaque mounting details
We recommend waiting until you have the actual plaques in hand before drilling any mounting holes or preparing the masonry.
Each milestone plaque is 45.72cm x 30.48cm x 1.4288cm [18" x 12" x 11/16ths"], is made of bronze, and weighs about 8.4 kg [21 lbs]. The edge of the plaques have a flange and a bevel. The flange is 4/16s" or .635cm, and the bevel is 5/16s" or .7938cm.
We recommend waiting until you have the actual plaques in hand before drilling any mounting holes or preparing the masonry.
Below is a rough diagram of the plaque as seen from the back. The plaques used to come with 6 holes (two along the midline of the plaque. However, beginning in 2012, the foundry began casting them with just the four mounting holes at the corners. The diagram shown below shows the previous version in case anyone with an older plaque needs this information for remounting purposes. The midline holes were/are 4 inches/10.16 cm in from the side edges (or 5 inches/12.7cm from the center) and 6 inches/15.24cm from the bottom and top edges.
For photographs of Milestone plaque locations and installations (walls, pedestals, etc.) please see the bottom of Helpful Hints on Citations, Plaque Locations
Back to: Milestones:Milestone_Guidelines_and_How_to_Propose_a_Milestone
