HomeMy WebLinkAboutM2018-0078 - MiscPMA CONSULTING, INC.
CONSULTING STRUCTURAL ENGINEERS
28161 Casitas Ct. PH. (714) 717-7542
Laguna Niguel, CA 92677
e-mail: p.petrov@pma-bg.com
March 29, 2018
Mr. Randy Davis
88 Linda Isle
Newport Beach, CA 92660
1"12018-6078
88Zinda We
RE: STRUCTURAL CONDITION OF SEAWALL AND TIE -BACKS REPORT
PMA Job #23518
Dear Mr. Davis,
PMA Consulting, Inc. is pleased to provide this report in accordance with Note 4 under
Building Department Notes on the enclosed Architectural Title Sheet Al.
STATEMENT OF THE PREPARER'S QUALIFICATIONS
Plamen Petrov, P.E., the preparer of this report, holds a Master of Science in Structural
Engineering from University of Architecture, Structural Engineering & Geodesy of Sofia, Bulgaria,
and is a Licensed Civil Engineer by the State of California Certificate No. C66947. For the last 19
years of his professional career he has been actively involved in the design and entitlement of
many Waterfront Developments such as custom homes, seawalls, piers, platforms, floating docks
and marinas. A great number of Bulkhead Condition Reports prepared by him have been reviewed
and accepted/approved by California Coastal Commission.
All the above being said, Plamen Petrov, P.E. shall be considered a qualified preparer for
this report.
OBSERVATION
Cursory observation of the existing seawall/bulkhead assembly was conducted by a
representative of our office on March 21, 2018. Observed was the visible/exposed part of the
waterfront face of the seawallibulkhead, and the visible/exposed length of four tie -backs and
deadmen/tie-blocks.
FINDINGS
The pre -cast jetted -in seawall panels and cast -in-place concrete coping were found in good
condition, without noticeable evidence of distress. The cast -in-place coping seemed repaired
recently. Observed were some minor cracks on the panels, which is typical for a concrete structure
of this vintage. There were some panels joints with missing filler. No structural deficiencies were
observed on the exposed tie -backs and deadmen/tie-blocks. Tie -backs were covered by PVC
Pipe/Sleeve embedded into deadmen/tie-blocks. Due to the in-place concrete deck behind the
bulkhead connections of tie -backs to the coping were not exposed, thus not observed.
CONCLUSION
Based on the above listed findings, we conclude that repair to the existing seawall assembly
in conjunction with the construction of the new dwelling is not necessary.
To prevent soil migration from behind the bulkhead, we recommend that all joins with
missing filler are properly grouted by a contractor specializing in concrete restoration.
The above conclusion & recommendation were 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, hie. appreciates the opportunity to work with you towards the successful
completion of your project. Should you have any questions regarding this report, please contact us.
Respectfully submitted,
Plamen Petrov, P.E.
Principal
Enclosure:
Architectural Title Sheet Al.