A streetlight mounting system can mount a streetlight pole to a street side surface, such as a slab of concrete or a sidewalk. The system can comprise a base that attaches on one end to the street side surface and on the other end to the streetlight pole. The base can comprise an enclosure having an opening and an associated door for providing access to an interior space of the enclosure. A hinge system can open and shut the door. When the door is shut, the hinge system can be contained within the interior space and thus hidden from view. When the door is open, the hinge system can elevate the door relative to the opening.