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HomeMy WebLinkAboutPA2021-055_20210610_Bulkhead Conditions Report_5-20-21 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 May 20, 2021 Robert Sinclair Sinclair Associates Architects Inc. Westwood Village Studio 10956 Weyburn Avenue, Studio 200 Los Angeles, CA 90024 BULKHEAD CONDITIONS REPORT Jon Gross; Applicant 1 Collins Island City of Newport Beach, County of Orange PMA Job #37720 Dear Mr. Gross, 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 21 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. OBSERVATION A cursory observation of the existing seawall/bulkhead was conducted by a representative of our office on November 30, 2020. Observed was the visible/exposed portion of the waterfront face of the seawall. Due to the site conditions, tie-backs were not accessible, thus not observed. FINDINGS The pre-cast jetted-in concrete panels and cast-in-place concrete coping of the seawall were found in generally good condition, without noticeable evidence of distress. Some minor cracks were observed, which is a typical condition for many of the seawalls of this vintage in the area. 1PA2021-055 CONCLUSION Based on our site observation, we conclude that the existing seawall is required to protect the proposed principal structure on the lot. To be able to do so, the seawall shall be repaired/reinforced/raised as reflected on the enclosed Drawings SW-0 thru SW-2. Once the seawall is reinforced in accordance with the enclosed drawings, no repair or replacement of the seawall shall be anticipated in the next 75. If during this period though, the seawall displays any sign of distress that requires immediate attention, it should be repaired or replaced at that time accordingly, without seaward encroachment from its current location. 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 2PA2021-055 en ~ 0 V, :z: '" '" -I z C '" ~ ~ .., 0 ~ !!! " " m "' !!' " 38 s ,?_,-,,. ,. .~ .. ., .-z ~ ~~ i ~ '!jlfl!: 1i111!i11:11 1:i!i!!i !1•1:1 " •11H·l11!! !i~111;i ; ili•l!lil!l; ~!!!IS : "!!.,!•'•'I !,•!lj•rl• ;i~~il t i~2~"~ ~;;i '•!i•-t 1i,1•iif! •n•1 !l! '''!"" " ,, ,1 !:I ~t:111 ,.aJi'l:s i:! 1•!:1,1!. 1 I ''I'" i !i~ :!~::i .. !~~ i ~M"''1, i Zill! 111:1 i•; ' e,, i;l~~~t ,: ~ i ~~~ ;l:!i ,j l i11i i1;~ ;~ ; Ill ffl;li~ b!ali. ~; i , jii • ii, ii. ; ~ ► '\z ' i j e~: ~ i' ,, ,1 OWJ-,ER/APPLIGANT "". lE .... --.:.....,. __ /'-. .,,, m m i .. ~ ,, 0 G) "' 0 i G) (/) .., m m .. I !-. i; i I l • ! ii ·r ' i ! , , "a Pl Pi S.:,."1&}~,. G) 0 . ► i-i> ;: jS!"~ _ ... f" ~§r~nl=Z~ill~ ~ ~8il ~ ~, h;~;.,~d~ : :111 ! Hlj!••l!!t, I/! 1,1,"' ;li~2~ "~~~.,,g~§ .!ij ~ ,,.,1'1•·' r .. !••! 1lli1 ! ;:: H;i ~ ~ii~2 _·•-:1:D: 2 8:i" ~i § ~ " i i!d Iii i ;;:1 ::: ~ r~ i I :!i~ ,:11 i~~ ,! : L : ~ ;ij~~ .,z;~i i~i*~~ ~ 5 ~!,11.:. i1!ai I''"! z is§~ ·11·1 !'11 , .. I' !~~~ .. ~~~~~-; i:1i 11!l ' :!"; •ii .,:1 !a1 oh 1-11 j ~ I ' GROSS RESIDENCE SEAWALL REINFORCING DIVIDED SKY SMKJ LLC/JON GROSS PMA Conaulting. In<.~ 1 COLLINS ISLAND 4639 S. LINOHURST AVENUE c,,~s.n.aonJr.-- ,_ __ -+_N_EWPO __ R_T_BE_A_C_H,_CA_9266_2 _______ _, DAllAS, TX 75229 28161=~5;£~:9'.llm STRUCT GENERAL NOTES & VICINITY MAP p .. ,,. CJ) -I ::J:J C: 0 -I C: ::J:J :I> r- C) m z m ::J:J :I> r- z 0 -I m CJ) PA2021-055 (/) ~ ..... .. ~ IE ► .. .. "' ::; m .., ~ z GROSS RESIDENCE SEAWALL REINFORCING 1 COLLINS ISLAND OWNER/APPLICANT DIVIDED SKY SMKJ LLC/J0N GROSS PMA Consulting. In<.~ 4639 S. LINDHURST AVENUE 28161~~N~9'2677 l------+-N_EWP_O_R_T_BE_A_C_H,_CA_92_6_62 _______ 7 DAllAS, TX 75229 F,/,W,~~~~_,, SEAWALL SITE PLAN PA2021-055 C: < ... -< ill > .. en m () 5 z N ii; ~ Ii: §~• ~~~ ~:~ :i~ m ~~ ~~ (/) ::E I "' z •~Ui~ mw 1;"'t~~ ~[;:~~~~ i~!•v,~ ·~;i;~ • • • e ,. :i: ... 0 m 0 .., ., .. 0 .., m ~~~t'llt"-"-.., "' 0 (E)COPING ! "-"Is .,s :s "Is iii !~ ~~ ~ !i~ a:~ ,.~ "' 8, • ... m () 5 z ... -< ill > .. ~!) ~I~ ~ .~ ;1, .., "I" ii~ ~ u S'O[ &:~ r=!~ c,+-----,..i-~ __ "'! __ ~~~11 ____________ L' --r-J 4 a!§0 ::: CB:~, ,o, J ~ ~! o,,-,.,~ ""~~·•~i ~~o~ ~~~ .;.~ ~-" i~~~ ~..,~ ~;i ' • "l ,c, ' ~ ; Iii "" rn ' ' rn ~ ~;;1"' g~; . ~8!!! ,,e ~;~ ,"> a.!i ~~\i1 ~~~ ~;II'~ ZH ~· ~~ ~~ ~i cl ,.,, 0 .,, ~ 0 -0 ,.,, -0 "' 0 ~ C) :::! 0 :e 0 ,.,, ~ tl.T.S 10'-0"± ., m ... !: .. "' ~I~ 1 · • d, ' ' ' ' (E)COPING lL---,, m ~ ,, ~ ... 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