The original Fort plan was discovered and the irregular footprint of the stone walls was different from the partial 1950s reconstruction. Inaccurate prior construction was removed. Less useable square footage resulted, requiring other Fort areas to be incorporated for mechanical spaces and the "Great Room" meeting space.
Because of height limitations, precast concrete planks were chosen as the floor structure. Long spans and unusual loads (people, cannons, and stone pavers) pushed some planks beyond typical limits. A reinforced bonded concrete topping created a continuous span condition and avoided thicker structure. Steel structure was provided where plank capacity was inadequate and to provide lateral bracing of the building and support of a masonry parapet and corbels.
A historically accurate French exterior appearance was recreated through traditional thick stone masonry walls built as veneer with reinforced concrete and masonry (CMU) backup to satisfy code requirements, traditional detailing, hand-forged hardware, and a wood roof with bell-cast eaves.