Laserfiche WebLink
• (4) Single-family residential areas: <br />(3,000) (N) = square feet <br />Where: <br />number of lots <br />average impervious cover for single- <br />family residential lots <br />(5) <br />Driveways and/or roadways on-site. <br />(b) If alternative surfaces for parking or other related uses are proposed, <br />• adjustment factors have been established that should be multiplied by the total acres of <br />actual impervious cover. The use of any alternative surfaces, including those not listed <br />here, must be authorized by the Engineering Department. Adjustment factors for any <br />surfaces not listed here shall be established by the Engineering Department. Adjustment <br />factors for use with specific surface coverage are as follows: <br />Proposed Alternative Surface Coverage <br />Factor <br />Gravel walks or driveways 0.25 <br />Rolled base or gravel driveways 0.55 <br />Stone, brick, or wood block with open <br />joints 0.60 <br />Stone, brick, or wood block with <br />cemented joints 0.80 <br />Grass-crete (or equivalent) 0.70 <br />Concrete or asphaltic concrete 1.00 <br />(1) Using the methods desefibed in subseetions (a) and (b) of this Seetion in <br />0 <br />This ?rgure--Sh6icrcrthen <br />be translated ffam t <br />Multifamily, commercial and industrial land uses: The impervious <br />cover for other land uses, including multifamily, commercial and <br />industrial, shall be determined by addressing the following factors: <br />a. Ground floor building square footage of all structures. <br />b. Estimated square footage of off-street parking.