HomeMy WebLinkAboutPA2021-207_20211117_Bulkhead-Seawall - Response to Notice of Incomplete Application 10-13-21
P M A C O N S U L T I N G , I N C .
CONSULTING STRUCTURAL ENGINEERS
28161 Casitas Ct. PH. (714) 717-7542
Laguna Niguel, CA 92677
e-mail: consulting@pma-bg.com
October 13, 2021
Ryan McDaniel
Brandon Architects
151 Kalmus Drive Unit G-1
Costa Mesa, CA 92626
RE: RESPONSE TO NOTICE OF INCOMPLETE COASTAL DEVELOPMENT
PERMIT APPLICATION FILING
Application No. Coastal Development Permit No. CD2021-052 (PA2021-207)
Tim Smith; Applicant
300 Morning Star Lane
City of Newport Beach, County of Orange
PMA Job #38120-1
Dear Mr. McDaniel,
PMA Consulting, Inc. is pleased to provide this response to Item 5 of the aforementioned
Notice of Incomplete Application Filing.
5. Coastal Hazards Report.
As reflected on the enclosed Topographic Survey and Aerial Photos, the existing Bulkhead
Assembly consists of jetted-in pre-cast concrete panels, cast-in-place concrete coping and concrete
stem wall on top of the coping. Top of existing concrete coping elevations, labeled on Topographic
Survey as TB vary from 8.58’NAVD88 to 8.74’NAVD88 along the waterfront length of the
property. Top of existing stem wall elevations actually equal existing FS along the waterfront of
the property and vary from 11.87’NAVD88 to 14.47’NAVD88. As a part of the proposed seawall
repair/reinforcing, the existing stem wall will be removed and replaced either by a new stem wall
on top of the existing coping with top of wall elevation varies from 10.9’NAVD88 to
12.88’NAVD88, or by pool basin wall with top of wall elevation of 11.80’NAVD88. All new top
of stem walls elevations are lower than the elevations of the existing stem wall to be removed and
replaced. Thus, there is no raising of bulkhead more than 42” from existing. The new stem walls
are higher than the minimum required elevation of 10.90’NAVD88 in accordance with the
Architectural & Landscape Concepts for the new development on the lot, intended to keep new
finished surface elevations very close to the existing finished surface elevations.
This response was prepared based on the existing conditions, proposed drawings, and
within the inherent limitations of this study, in accordance with generally acceptable engineering
principles and practices. We make no further warranty, either expressed or implied.
PMA Consulting, Inc. appreciates the opportunity to work with you towards the successful
completion of your project. Should you have any questions regarding this report, please give us a
call.
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Respectfully submitted,
Plamen Petrov, P.E.
Principal
Enclosures:
Topographic Survey
Photos 1, 2 & 3 of Existing Bulkhead
Seawall DWGS SW-0 thru SW-3
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