HomeMy WebLinkAbout(1994, 01/24) - L-10 - Amended - changed to L-10C I110
SOUND ATTENUATION WALLS
Sound attenuation walls may be required as part of the environmental process
related to street improvement projects, may be required as mitigations for
development projects causing significant traffic increases, or may be required in
new development projects to mitigate noise impacts identified in environmental
studies. It is the intent of this policy that such walls be designed in an
esthetically pleasing manner, pursuant to the standards outlined below.
New sound attenuation walls shall ordinarily be constructed with slump stone,
split face concrete block, plaster or stucco surfaced block, or specially finished
concrete. For locations where the new wall will be integrated with existing
walls, the new wall shall match existing walls if the specified degree of sound
attenuation can be provided. Replacement of existing landscaping disturbed by
wall construction shall be included in the wall projects.
An alignment incorporating staggered or offset panels may be utilized where
adequate right of way exists, or additional space can be provided on private
property. Standard roadway widths, sidewalk widths, and bicycle trail widths
shall not be reduced in order to provide additional space for a staggered wall
alignment.
Upgrading of materials, design, or landscaping is encouraged and may be
included in the project if adequate funding can be provided.
Sound attenuation walls which are constructed in new development projects
shall provide for generous landscaped setbacks, and shall incorporate - materials
and design features which will enhance the esthetic characteristics of the wall.
Design concepts shall emphasize preservation of public views, consistent with
providing the required sound attenuation.
Adopted - February 10, 1986
Amended - February 12,1990
Reaffirmed - January 24,1994
Formerly 1-12
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