6-3-1: MATERIAL SPECIFICATIONS:
   A.   Mayor's Authority: All sidewalks built or constructed within the city limits shall be constructed of cement or material pursuant to specifications of the mayor. (1983 Code § 12.12.010)
   B.   Plank Or Wooden Sidewalks: It is unlawful for any person, either directly or indirectly, to construct along his property or to allow to be constructed any plank, board or wood sidewalk within the city limits without first having secured a permit from the mayor and city council to do so. (1983 Code § 12.12.020)