The selected firm shall appraise approximately 323 facilities, 725 structures, and corresponding contents on Commission properties across its entire 554-mile system as directed by the Commission during the first year of the contract. Facilities are defined as, but not limited to, the buildings that are part of the Commission’s Central Office Campus; Eastern Regional Office; Western Regional Office; buildings at interchanges, toll plazas, and open road tolling facilities; maintenance facilities; stockpile facilities; training facilities; Pennsylvania State Police facilities; service plazas; warehouses; and tower sites. Please note, new Open-Road Tolling (ORT) sites may be added during the timeframe and will be added to the contract, as needed. Excluded from the appraisal shall be bridges, tunnels, roadways, land, land improvements, licensed vehicles, snow equipment, road repair equipment, fine arts, supplies, materials on hand, inventories, records, and any current or intangible assets that may exist.