An underground electrical utilities vault and distribution enclosure system comprises a grade level box, for storing underground cables, and a two-part lid comprising a pair of side-by-side cover plates that close the top of the box. One of the split cover plates has an access opening that interlocks with an above-ground pedestal housing. Connections to underground cables contained in the grade level box are made on a frame structure disposed in the pedestal housing. The split cover may contain a removable plug that normally rests at ground level before service is provided to the premises. The pedestal housing can include a separate collar that supports a pre-assembled contact mounting frame and snap locks into a fixed position over the access opening. Separately, the pedestal housing can include a plug base and an integrally molded collar that supports a contact mounting frame. When connections are provided to the premises, the plug is removed and the pedestal housing, having a base of the same configuration as the access opening, is snap-locked in the opening left by removing the plug. The interior of the pedestal housing contains connecting brackets such as mounting bars and/or a universal mounting plate for making the above-ground connections.