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HomeMy WebLinkAbout20171114_Bulkhead-Seawall Conditions Report 10-21-17 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: p.petrov@pma-bg.com October 21, 2017 Christopher Brandon, Architect 151 Kalmus Drive, Suite G-1 Costa Mesa, CA 92626 BULKHEAD CONDITIONS REPORT John & Julie Guida; Applicants 501 Via Lido Soud City of Newport Beach, County of Orange PMA Job #19817 Dear Mr. Brandon, PMA Consulting, Inc. is pleased to provide this report in accordance with Section 21.30.15.E.3 of City of Newport Beach Municipal Code. 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 the Bulkhead Conditions Report on this project. OBSERVATIONS Cursory observations of the existing seawall/bulkhead were conducted by a representative of our office on September 21, 2017 and October 13, 2017. Observed were the visible/exposed portion of the waterfront face of the seawall, and one of the concrete buttress walls behind the seawall. FINDINGS The cast-in-place concrete seawall was found in a good condition without noticeable evidence of distress. PA2017-239 CONCLUSION Upon review of the available Architectural Drawings for the proposed development on the site, we conclude that the existing seawall is required to protect the proposed principal structure. To be able to do so, and to accommodate the proposed poll behind it, the seawall has to be reinforced in accordance with the enclosed drawings SW-0, SW-1 & SW-2. Once the seawall reinforcing in completed, no additional repair or replacement of the seawall shall be anticipated in the next 75 to 100 years. The above conclusion 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. Respectfully submitted, Plamen Petrov, P.E. Principal Enclosures: Seawall Drawings SW-0 thru SW-2 PA2017-239 PA2017-239 N72°31'00"W 69.99'N17°29'00"E 105.00'N17°29'00"E 105.00'POOL & SPA UNDER SEPARATE PERMITFF (T.O.SLAB) = 10.40'(E) PLATFORM15'-1 1/4"15'-1 1/4"15'-1 1/4"15'-1 1/4"PROPERTY LINE(E) BLOCK WALL TO REMAIN UNCHANGED24'-5 3/4"4'-0"±4'-0" ±(N) BLDG UNDER SEPARATE PERMITPROPERTY LINEPROPERTY LINE(N) CAST-IN-PLACE CONC CAP ATOP (E) SEAWALLVFOR SEAWALLELEVATION-69'-11 3/4"(E) BLOCK WALL TO REMAIN UNCHANGED(N) 24"Ø CONC CAISSON W/ (6)#6 VERT & #4 CLOSED TIES @ 6" O.C. TYP(N) 1"Ø DYWIDAG THREADED TIE-ROD, TYP (TOTAL OF 5)KSW-2TYP17'-6" ±17'-6" ±(E) BUTTRESS WALL WHERE OCCURS TYP4'-9 1/2"4'-9 1/2"DATUM0' - 0"DATUM0' - 0"T.O. (N) CONC CAP10' - 4"T.O. (N) CONC CAP10' - 4"(N) CONC CAISSON BEYOND, TYP(N) TEMPERED GLASS GUARDRAIL(N) CAST-IN-PLACE CONC CAP(N) ANCHOR CONN, TYPPROPERTY LINE(E) DREDGE LINE/MUDLINEPROPERTY LINE(E) CONC SEAWALL TO REMAINKSW-2(E) SEAWALL, SEE SITE PLAN FOR LENGTH(E) PUBLIC BEACH(E) SEAWALL TO REMAIN & BE PROTECTEDNOTE: VERIFY ALL ELEVATIONSPMA Consulting, Inc.Consulting Structural Engineers28161 Casitas Ct., Laguna Niguel, CA 92677Phone: (714) 717-7542E-Mail: P.Petrov@PMA-BG.comNo.C 66947REGISTEREDPROFESSIONALENGINEER PLAMENPE TROV OEASTTFFILACVICLIINROASSIBOROV DRAWNJOB NO.SHEETDATEOFCHECKEDOWNER / APPLICANT08/01/2017PMA CONSULTING, INC.OWNERSHIP OF DOCUMENTSDRAWINGS AND SPECIFICATIONS AS INSTRUMENTS OF SERVICE ARE AND SHALL REMAIN THE PROPERTY OF THE ENGINEER WHETHER THE PROJECT FOR WHICH THEY ARE MADE IS EXECUTED OR NOT. THEY ARE NOT TO BE USED BY THE OWNER ON OTHER PROJECTS OR EXTENSIONS TO THIS PROJECT EXCEPT BY THE AGREEMENT IN WRITING AND WITH APPROPRIATE COMPENSATION TO THE ENGINEER.10/21/2017 8:24:53 AMSW-1SITE PLAN/CAISSONS LAYOUT1981710/21/2017P.PETROVM.PETROVA10/21/2017JOHN & JULIE GUIDA501 VIA LIDO SOUDNEWPORT BEACH, CA 92663SEAWALL AT GUIDA RESIDENCE501 VIA LIDO SOUDNEWPORT BEACH, CA 92663 3/16" = 1'-0"SITE PLAN/CAISSONS LAYOUTQ 3/16" = 1'-0"SEAWALL ELEVATIONV501 VIA LIDO SOUDAPPLY DETAIL AT THE ENTIRE PERIMETER OF ANY EXCAVATED MATERIAL PILED UP AT THE PROJECT SITE IN COMPLIAQNCE WITH ITEM 6 UNDER "EROSION CONTROL NOTES" ON SHEET SW-0.PSW-2NORTHNO.REVISIONDATEPRIOR TO POURING CONCRETE & AFTER TIE-BACKS INSTALLATION IS COMPLETEDSTEM WALL, CAISSONS & TIE-BACKSPA2017-239 PA2017-239