NOVELTY - The system (100) has a distribution system comprising an in-feed piping embedded within a superstructure (12), interconnecting a geothermal loop (16) to the superstructure and transmitting a heat transfer thermal medium from the geothermal loop to and through the superstructure and a return piping embedded within the superstructure and connected to the in-feed piping. The return piping transmits the thermal medium from the in-feed piping back to the geothermal loop. A pump pumps the thermal medium through a heat exchange system and through the distribution system.    USE - Multi-purpose geothermal system for regulating temperature of structural elements i.e. superstructures, for vehicles i.e. ice and snow removing vehicles. Can also be used for pavements and transportation facilities.    ADVANTAGE - The system improves curing of a concrete during construction, lessens impact of temperature-related damages to the concrete, melts snow and ice from the concrete and provides power through the life of the superstructure or pavement. The system allows a user to operate a controller to pump the transfer medium through the in-feed piping during construction of the superstructure, so that a geothermal concrete receives sufficient, controlled temperature conditions to optimize heat of hydration during curing and the geothermal concrete layer is sufficiently cool to prevent micro-cracking and other damage related to temperature exposure, thus improving strength, permeability, durability and hardness of a geothermal concrete layer. The user extends life of the superstructure by obviating chemical effects of snow and ice melting agents and loading ice and snow removing vehicles on the geothermal concrete layer. The user operates a power system to provide sufficient power to the superstructure to forego reliance on a power grid and generates excess power that is sold back to the power grid, so that the system saves energy compared to powered superstructures.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for regulating temperature of a superstructure.    DESCRIPTION OF DRAWING(S) - The drawing shows a side view of a multi-purpose geothermal system for regulating temperature of structural elements.    Geothermal source (10)    Superstructure (12)    Geothermal loop (16)    Power system (32)    Multi-purpose geothermal system (100)