Materials and workmanship for all parking lot construction, regardless if a parking lot construction permit is required, must comply with city adopted standards and specifications as set forth in LMC 14.20.010. Parking lot surfacing materials shall satisfy the requirement for a permanent all weather surface. Pervious concrete, porous asphalt, permeable pavers, asphalt concrete pavement and cement concrete pavement satisfy this requirement and are approved materials. To meet pedestrian comfort improvement requirements, special color and texture shall be designed into pedestrian lanes and crossings.

Gravel surfaces are not acceptable or approved surface material types. Combination grass/paving systems are approved surface material types; however, their use requires submittal of an overall parking lot paving plan showing the limits of the grass/paving systems and a description of how the systems will be irrigated and maintained. If the city engineer determines the grass/paving system is not appropriate for the specific application, alternate approved surfacing materials shall be utilized.

Other types of surfacing materials will be considered subject to the approval of the city engineer prior to construction. (Ord. 1496 §5, 2016; Ord. 1434 §2, 2014; Ord. 875 §14 (part), 1990).