When giving a dedication speech, include an explanation of the personal meaning and history of the place or constructed item being dedicated, showing thanks for the people who helped earn funds or build the item. Other things to include are a special story about the place or thing and an explanation of how its dedication will serve as an inspiration for the future.
It's important to pick all the instrumental people who had a part in the place or item being dedicated, and some facts about those people can be included in the speech. It's also necessary to make the speech memorable for the organization. Avoid including puns and unoriginal metaphors and instead focus on a profound statement.