24.45.020 Minimum Surfacing Standards for Parking Areas and Garages for Passenger Cars and Trucks not Exceeding 1/2-Ton Capacity and Driveways Serving Structures 150 Feet or Less from an Improved Public Right-of-Way.
(Amended by Ordinance No. 173270, effective May 21, 1999.) Surfaced areas
shall be constructed on properly drained, well-compacted subgrade, that is free
of organic materials. Minimum pavement structure shall be:
A. Three and one-quarter inches Portland cement concrete having a
compressive strength of 2,000 psi after 28 days, or
B. One and one-half inches of asphalt concrete placed over a base of 4
inches of crushed stone or gravel, or
C. Grid paving blocks, paving stones or materials with adequate
spacing for drainage infiltration, or other stormwater management control
surfaces. Where such surfaces are provided in accessible parking and as part of
an accessible pedestrian path, the surfaces shall meet accessibility standards
of the state building code.
24.45.030 Minimum Surfacing Standards for Driveways Serving Structures More than 150 Feet from an Improved Public Right-of-Way.
(Amended by Ordinance No. 173270, effective May 21, 1999.) Surfaced areas
shall be constructed on properly drained, well-compacted subgrade, that is free
of organic materials. Minimum pavement structure shall be:
A. Two inches of asphalt concrete on 4 inches of 1-inch minus,
compacted crushed rock; or
B. Five inches of Portland cement concrete having a compressive strength
of 3,000 psi after 28 days, or
C. A driveway surfaced as per Section 24.45.020 for the first 40 feet
contiguous with the right-of-way paving and the remaining portion of 8 inches of
1-inch minus, compacted crushed gravel over filter fabric, or
D. Grid paving blocks, paving stones or materials with adequate
spacing for drainage infiltration, or other stormwater management control
surfaces. Where such surfaces are provided in accessible parking and as part of
an accessible pedestrian path, the surfaces shall meet accessibility standards
of the state building code.
