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Home My WebLink About2740 ARGONAUTA ST; ; CB990910; PermitDECLARATIONS LENDER WORKER'SCOYPENSATION OWNERmUILDLR -1 CONTRACTOM I1 1- .. I D n D n Whlte ~ Inspector Green - (1) Flnance Yellow - Assessor Plnk ~ Applicant Gold ~- Temporary Flle INSPECTION REQUEST CITY OF CARLSBAD FOR 07/17/90 PERMIT# CB890910 DESCRIPTION: 406 SF PART OF GRADING CEV TYPE: RETAIN JOB ADDRESS: 2740 ARGONAUTA ST APPLICANT: BANKS, RONALD CONTRACTOR: RETENTION SYSTEM INC PHONE : OWNER: BANKS, RON PHONE: PLANCK# CB890910 INSPECTOR AREA TP CONSTR. TYPE NEW DOUBLE FEE PER MIKE HARRINGTON OCC GRP STR: FL: STE : PHONE: 619 753-5092 REMARKS: T2/MH/RON/753-5092 INSPECTOR SPECIAL INSTRUCT: FINAL RETAINING CRIB WALL TOTAL TIME: --RELATED PERMITS-- PERMIT# TYPE CB900384 EL STATUS ISSUED CD LVL DESCRIPTION ACT COMMENTS 69 MA Final Masonry - LO ,449 2iV-P. ReL.wzL76Y7 " " - " - ***** INSPECTION HISTORY ***** DATE DESCRIPTION 062690 Final Masonry 062290 Final Combo ACT INSP COMMENTS NR TP NS TP ? ON INSP TYPE INSPECTION REQUEST CITY OF CARLSBAD PERMIT# CB890910 FOR 06/22/90 DESCRIPTION: 406 SF PART OF GRADING CEV INSPECTOR AREA TP PLANCKY CB890910 OCC GRP CONSTR. TYPE NEW DOUBLE FEE PER MIKE HARRINGTON TYPE: RETAIN JOB ADDRESS: 2740 APPLICANT: BM,'"EONALD STR: FL: STE : CONTRACTOR: RETENTION SYSTEM INC PHONE : OWNER: BANKS, RON PHONE: REMARKS: Tl/MH/431-5092 SPECIAL INSTRUCT: TOTAL TIME: CD LVL DESCRIPTION 19 ST Final Structural 29 PL Final Plumbing 39 EL Final Electrical 49 ME Final Mechanical INSPECTOR / /hv i ***** INSPECTION HISTORY ***** DATE DESCRIPTION ACT INSP COMMENTS DATE: 12/26/90 TO: BANKS, RONALD CARLSBAD, CA 92009 2740 ARGONAUTA ST PERMIT NUMBER: CB890910 ISSUE DATE: 06/23/89 LAST INSPECTION: PLEASE CALL FOR AN INSPECTION IF WORK IS COMPLETE RE: BUILDING PERMIT EXPIRATION ADDRESS: 2740 ARGONAUTA 'ST Our records indicate that your building permit will expire by limitation of time on 01/13/91. The provisions of UBC, Section 303(d) state: "EXPIRATION. Every permit issued by the Building Official under the provisions of this code shall expire by limitation and become null and void if the building or work authorized by such permit is not commenced within 180 days from the date of such permit, or if the building or work authorized by such permit is . of 180 days. Before such work can be recommenced, a new permit shall be suspended or abandoned at any time after the work is commenced for a period first obtained so to do, and the fee therefore shall be one-half the amount required for the original plans and specifications for such work: and provided further that such suspension or abandonment has not exceeded one (1) year. Any permitee holding an unexpired permit may apply for an when he is unable to commence work within the time required by this section extension of the time within which he may commence work under that permit for good and satisfactory reasons. The Building Official may extend the time for action by the permitee for a period not exceeding 180 days upon written request by the permitee showing that circumstances beyond the control of the permitee have prevented action from being taken. No permit shall be extended more than once. In order to renew action on a permit after expiration, the permitee shall pay a new full permit fee. Please check below indicating your intentions and return this letter to us. Project abandoned. New permit will be obtained prior to commencing work. Maximum 180-day time extension requested. (NOTE: A separate letter for an extension request and reason for such, must accompany this form.) If you have any questions, please contact this department at 438-3550. TONY MATA Principal Building Inspector 2075 Las Palrnas Drive - Carlsbad, California 92009 - (619) 438-1161 . .- of Carlsbad Date: June 18, 1990 TO : Ron Banks 2740 Argonauta St. Carlsbad, CA 92009 Permit Number: CB890910 Issue Date: 06/23/89 Last Inspection: PLEASE CALL FOR AN INSPECTION IF WORK IS COMPLETE RE: BUILDING PEFNIT EXPIRATION JOB ADDRESS: 2740 Argonauta St. Our records indicate that your building permit will expire by limitation of time on 06/30/90 The provisions of UBC, Section 303(d) state: "EXPIRATION. Every permit issued by the Building Official under the provisions of this code shall expire by permit is not commenced within 180 days from the date of such permit, or if the limitation and become null and void if the building or work authorized by such building or work authorized by such permit is suspended or abandoned at any time after the work is commenced for a period of 180 days. Before such work can be recommenced, a new permit shall be first obtained so to do, and the fee therefore shall be one-half the amount required for the original plans and abandonment has not exceeded one (1) year. Any permittee holding an unexpired specifications for such work; and provided further that such suspension or permit may apply for an extension of the time within which he may commence work under that permit when he is unable to commence work within the time required by this section for good and satisfactory reasons. The Building Official may extend the time for action by the permittee for a period not exceeding 180 days upon written request by the permittee showing that circumstances beyond the control of the permittee have prevented action from being taken. No permit shall be extended more than once. In order to renew action on a permit after expiration, the permittee shall pay a new full permit fee. Please check below indicating your intentions and return this letter to us. - Project abandoned. New permit will be obtained prior to commencing work. - Maximum 180-day time extension requested. (NOTE: A separate letter for an extension request and reason for such, must accompany this form.) If you have any questions, please contact this department at 438-3550. Principal Building Inspector \ 2075 Las Palrnas Drive - Carlsbad, California 92009 - (619) 438-1 161 I December 20,1989 City of Carlsbad Carlsbad, CA 2075 Las Palmas Drive 92009-4859 To Mr. Tony Mata Principal Inspector Subject: PE 2.89.19 Building Permit 89-910 Dear Sir, I am requesting an extension on my building permit -- of 6 months to complete the job as required by the City. The building permit was in conjunction with a grading permit that was just issued 11 November 1989. Your assistance would be appreciated. If you have any question, Please feel free to call me at 753- 5092 between 8:00 am. and 5:OO P.M. Sincerely, K& n 1.c City ~~ - ~~~ . - of Carlsbad July 12, 1989 Ronald Banks 2740 Argonauta Street Carlsbad, CA 92009 REGARDING 2740 ARGONAUTA STREET - APN: 215-400-18 It has come to my attention that a permit, #89-910, was issued on June 23, 1989, for a crib wall, which was erected some time ago, at the above mentioned address (copy of permit enclosed). directs you to comply by lowering the height of the crib wall in Due to the existing wall exceeding the allowable height, this office accordance with the approved plans. The lowering of the wall should be done in a safe, orderly manner. You have until August 1, 1989, to lower the wall to the approved and allowable height to comply with Carlsbad Municipal Code, Section 21.46.130. If you fail to comply by the above mentioned date, this matter will be referred to the City Attorney's office. If you have any questions regarding this matter, contact the undersigned at 438-1161. MICHAEL A. HARRINGTON Code Enforcement Officer ib C: City Attorney Building Department Atrilding Permit Files Enclosure ~~ . ~~ ~. . . ~ ~~~ ~~ __ 2075 Las Palmas Drive- Carlsbad. California 92009-4859-(619) 438-1 161 WRITE IT - DON’T SAY IT! Date 5;/5 19 89 To JEFF OReply Wanted From DORIS UNO Reply Necessary RETAINING WALL AT 2740 ARGONAUTA ST Mr. Banks has applied for a permit for leb SF of retaining wall (3’ average height) ...... Ililce Harrington would like you to field check LtOG and see exactly what measurements are..,enclosed is agreed upon wall and letters.. . . .please let me know if and when it is awroved.. . . .no hurry.. . Mike has been trying to get him to comply since June of 1987. B” PllNTLO IN “5.1 January 12, 1991 City of Carlsbad Carlsbad, CA 2075 Las Palmas Drive 92009-4859 To Mr. Tony Mata Principal Inspector Subject: Building Permit No. 89-910 PE 2.89.19 2740 Argonauta Street Dear Sir, I am notifying the City of completion Crib Wall and fence as discussed in person 23rd of April 1990. I have met all the City's conditions-- slopes are all landscaped, all permits vere height at any point. issued , and the height of the wall does not exceed 6'-0*' in I am enclosing the building permit for your sign off, per my conversation vith Mike Peterson. Along vith Permit a copy of the soils report, Final pad certification, and a copy of the corner of grading plan vith final sign-off. If you have any question, Please feel free to call me at 753- 5092 betveen 8:00 am. and 5:OO P.M. Thank you for your support. Sincerely, Ronald W. Banks 2740 Argonauta Street Carlsbad, CA 92009-6503 U1 urn co V)N a a0 U .. si .. -n -a ,' ' ,. "5 Oa L i -2z- PASCO ENGINEERING, INC. 531 NORTH HIGHWAY 101 SOLANA BEACH, CA 92075 (619) 259-8212 FAX (619) 259-4812 WAYNE A; PASCO R.C.E. 29577 January 4, 1991 City Engineelr City of Carlsbad Carlsbad, CA 92009-4859 2075 Las Palmas Road .. PE 297 RE.: . AS-BUILTS FOR GRADING PLAN PE 2.89.19 As engineer of work on the above referenced project I hereby state that all drainage, lot drainage, and drainage facilities on the site have been completed and installed in conformance with the as-built plans. I further state that there has been no change on the site from'November 7, 1990. (the date the as-buiit plans'where signed) to the present. d&G+ Bm //Yb/ Wayne P&co, RCE 29577 Expiration date: 3/31/91 , Date .. . .. May 7, 1990 Ron Banks Carlsbad, CA 92009 2740 Argonauta Street ., ,Subject: File No. 040 Report of Field Density Tests Proposed Swimming Pool Carlsbad, California 2740 Argonauta Street Dear Mr. Banks: This is to present the results of the compaction tests performed A.P.N. 215-401-18. In accordance with your request, in-place at the subject site, more particularly described as: D1556-82 in the backfill behind the crib wall and in the fill field density tests were taken in conformance with A.S.T.M., placed in the swimming pool pad. The results of the field density tests are presented on Page T-1 the maximum dry d.ensities and optimum moisture contents of the under "Table of Test Results". The laboratory determinations of Results". The approximate locations of the filled ground and the fill soils are set forth on Page L-1 under "Laboratory Test field density tests are presented on Plate No. 1 entitled "Location of Field Density Tests". please do not hesitate to call our office. This opportunity to Please read this report carefully. If you have any questions, be of service is sincerely appreciated. Page L-1, Page T-1 and Plate No. 1 are parts of this report. Respectfully submitted, Engineer, W JCs/dml cc: (3) submitted -.-. -....,., .,.*. i .. - 4015 TRIESTE DRIVE CARLSBAD, CALIFORNIA 92008 (619) 720-9641 .. 9931 Channel Rd. Lakeside, CA 92040 (61 9) 443-0060 C.H. WOOD CIVIL ENGINEER/GEOTECHNICAL ENGINEER May 7, 1990 Ron Banks Carlsbad, CA 92009 2740 Argonauta Street Subject: File No. 040 Report of Field Density Tests Proposed Swimming Pool 2740 Argonauta Street Carlsbad, California Dear Mr. Banks: This is to present the results of the compaction tests performed at the subject site, more particularly described as: A.P.N. 215-401-18. In accordance with your request, in-place field density tests were taken in conformance with A.S.T.M., D1556-82 in the backfill behind the crib wall and in the fill placed in the swimming pool pad. The results of the field density tests are presented on Page T-1 under "Table of Test Results". The laboratory determinations of the maximum dry densities and optimum moisture contents of the fill soils are set forth on Page L-1 under "Laboratory Test Results". The approximate locations of the filled ground and the field density tests are presented on Plate No. 1 entitled "Location of Field Density Tests". please do not hesitate to call our office. This opportunity to Please read this report carefully. If you have any questions, ~ be of service is sincerely appreciated. Page L-1, Page T-1 and Plate No. 1 are parts of this report. Respectfully submitted, &*; G&dg Eng i neer , JCs/dml cc: (3) submitted 1 4015 TRIESTE DRIVE CARLSBAD, CALIFORNIA 92008 (619) 720-9641 Banks Page L-1 File No. 040 May 7, 1990 LABORATORY TEST RESULTS The maximum dry densities and optimum moisture contents of the ffll materials as determined by the A.S.T.M., D1556-70, Method C, which uses 25 blows of a 10 pound rammer falling from a height of 18 inches on each of 5 layers in a 4 inch diameter 1/30 cubic foot compaction cylinder, are presented as follows: Maximum Dry Density Optimum Moisture Soil TYDe lb/cu.ft. Content dry ut. 1 Medium Brown, Clayey, Fine to Coarse Sand 122.6 12.9 2 Tan Silty, Clayey, Fine to Medium Sand 133.0 9.4 3 Medium Brown, Fine to Coarse, Sandy Clay 120.3 13.2 4 Tan Slightly Silty,, Fine to Coarse Sand 125.4 10.1 Banks Page T-1 File No. 040 nay 7, 1990 TABLE OF TEST RESULTS A.S.T.M.. D1556-82 DEPTH HAXIMUM TEST SOIL OF FILL FIELD DRY AT TEST MDISTURE DRY DENSITY NO. TYPE IN FEET DENSITY PERCENT x P.C.F. P.C. F. COMPACTION 1 1 -4.0 n.g. 10.0 111.9 122.0 91.7 2 2 t2.0 8.0 120.4 133.0 90.5 3 3 t2.0 11.2 110.3 120.3 91.7 4 3 t3.0 14.0 110.8 120.3 92.1 5 4 t4.0 9.5 114.2 125.4 91.1 n.g. = natural ground I 9931 Channel Rd. (61 9) 443-0060 Lakeside. CA 92040 Ae&Oh/dL/;TA 5TEE€T P&JEL~- e. BY DATE Z -- unit wt. S€ CALCULATIONS MATERIAL FOR 3/4" C-A-B EzC-0 H=F-G !rock, skip I Note: If no 1;;th;:M incl. ~ N=ZH/E 'If there is rock, then: 'JzG-1 K i/Z L = J 2(62.4 x. [Sp.Gr. of Rock]) FIELD DENSITY TEST SHEET SOIL TESTERS , (9 ,: I? .:$ JOB NAME //r .+ ..q,.-- :-, :A I <, ?' FILE NO. .- . / / -Lr. . .._.._".____I ". . . . . "_~. I 1T.B. GRID DAILY LOG Grading start Completion' YES- Existing Fill? NO- Remove .and Rynpact? YES- Non-Structural Fill? NO- YES" NO- WE NO- ttiayve? NQ- Undercut? YES- NO- All Foundations in Cut? YES- NO- All Foundations in Fill'. YES- NO- Grading Plan? YES- NO- Slope Gradient cut Fill : COMMENTS: (Sp. Gr. of Rock usually = 2.65) M=K-L N=H/M Q-0-P S-P-R T=Q/S N T + 100 u =, W='I/V SOIL TESTERS FIELD DENSITY TEST SHEET ,,... , JOB NAME ,L& .,,..-. -*, .- ., I _. FILE NO. 039 IT z . SJnit ut. St CALCULATIONS MATERIAL FOR 3/4" C=A-B E=C-D H=F-G Note: If no rock, skip I thru M incl. 'then: N=ZH/E I If there is rock, then: J = G- I K i/Z x' [Sp.Gr. of L = J +(62.4 Rock]) Rock usually (Sp. Gr. of = 2.65) M-K-L N=H/M P-0-P S=P-R T=Q/S u =, T + 100 N Test number Time in Ti me 011 L: G:'po h" Date I, , i> , \,,, 0 .*. Location/Lot# Soil type G tare 11 net soil H tare t rock 8- 7< Q /F .B. GRID DAILY LOG Grading start Completion' Existing Fill? YES- NO- Remove and Ryompact? YES- Non-Structural Fill? NO- YES- NO- @art? NO- Expansive? YES- NO- Undercut? YES- NO- All Foundations in Cut? YES- NO- A1 1 Foundations in Fill: YES- NO- Grading Plan? YES- NO- Slope Gradient cut Fill : COMMENTS: Jlnet rock - CARLSBAD. CA 92009-4859 2075 LAS PALMAS DRIVE (619) 438-1161 TELEPHONE @itE nf Qrlsbn3 PLANNING DEPARTMENT September 7, 1988 Ron Banks Carlsbad, CA 92009 2740 Argonauta St. Subject: AV 87-5 - eight foot high cribwall in rearyard located at 2740 Argonauta St. Dear Mr. Banks: As you were recently notified, a Notice of Grading Violation was be given four months from receipt of this letter to clear up this filed against your property located at 2740 Argonauta St. You will matter. A monthly report on the status of your project will be - required from you. As previously agreed upon, the cribwall must be taken down to the allowable 6 foot height limit within the rearyard setback. Should this matter not be cleared up within the required time frame, it shall be referred to the City Attorney's Office for further legal action. Sincerely, Wilma Die&rsloot Assistant Planner c: Jim Murray Michael Harrington WD: kd Bauks r I 2075 LAS PALMAS DRIVE CARLSBAD, CA 920044859 April 28, 1988 BUILDING DEPARTMENT Ronald Banks 2740 Argonauta Street Carlsbad, CA 92009 Subject: 2740 Argonauta Street - APN: 215-400-18 our attention that the adjustment of the crib wall to the acceptable option Please see the attached letter dated January 11, 1988. It has come to agreed upon has not taken place. In a phone conversation with this office on March 15, 1988 you related that you would have the plans finished by the end of March. As of this date there has been no action to comply applied for. with the City’s requirements nor plans submitted or permits, if required, You must be in compliance with the requirements of the Carlsbad Municipal Code by May 13, 1988 or this matter will be referred to the City Attorney’s Office for further legal action to gain compliance. at 438-1161. If you have any questions regarding this matter contact the undersigned Y-% ichael A. Harrinqton - i Code Enforcement-Officer C: City Attorney Gary Wayne Charles F. Grimm Wilma Diepersloot May 31, 1989 Pasco Engineering Solana Beach, CA 92075 535 North Hwy. 101 ATTN: WAYNE PASCO SUBJECT: HILLSIDE DEVELOPMENT PERMIT - HDP 89-22/BANKS POOL, 2740 Argonauta Street APN: 215-400-18 The City has completed a review of the application for a Hillside Development Permit to allow grading for a rear yard pool. It is the Planning Director's determination that the project is consistent with Municipal Code and therefore APPROVES the request based on the following findings the City's Hillside Development Ordinance, Chapter 21.95 of the Carlsbad and conditions. Findinqs: 1. Hillside conditions have been properly identified on the constraints map which show existing and proposed conditions and slope percentages. 2. Undevelopable areas of the project i.e. slopes over 40%, have been properly identified on the constraints map. 3. All development is designed to minimize grading and alignment of the pool will reduce impact on the slope. 4. No development will occur in the undevelopable portions of the site. 5. The grading design minimizes disturbance of hillside areas. 6. The project design substantially conforms to the intent of the concepts illustrated in the Hillside Guidelines Manual as follows: a) Grading volumes per acre are not exceeded. b) The slopes are contoured and cut slopes do not exceed 30 feet in height. -~ ~ ~~~~ ~~ ~. ~ . - 2075 Las Palrnas Drive - Carlsbad. California 92009-4859 - (619) 438-1 161 . * Pasco Engineering May 31, 1989 Paqe 2 Conditions: 1. All newly created cut and fill slopes must be landscaped and screened from adjoining properties to the satisfaction of the Planning Director. 2. Landscape Plans designed in accordance with the City of Carlsbad Landscape Design Manual shall be submitted for approval prior to issuance of the building permits for the crib walls and swimming pool. 3. Crib walls and retaining walls located on the property must not exceed a maximum of 6'-0" in height at any point along the wall measured from the top of the wall to pre-existing grade at the bottom of the wall. Sincerely, MICHAEL J. HOLZMILLER Planning Director vu MJH: JG/1 h hdp8922.ltr April 21, 1989 TO : FROM: MARIO INGRAHAM, ENGINEERING 4 CARTER OARNELL, BUILDING 4L 2740 Argonauta A building permit should be issued for the wall. We will accept the findings of the two registered engineers that the wall is stable and issue the permit upon application of the owner. . CITY OF CARLSEAO Date: Sisnatur?: C.H. WOOD CIVIL ENGINEEfVGEOTECHNICAL ENGINEER ... . .- . Mr. Ron Banks 2740 Argonauto Street Carlsbad, California 92009 Subject: Soil Conditions, 2740 Argonauto Street, Carlsbad, California Dear Sir: In 1982, while working for Alpha Laboratories, I prepared two soils'reports for your property located at the subject address. One was a "Preliminary Sails Investigation" (preliminary to structural and grading deslgn and prior to actual construction). The other was a quality control report .(for earthwork construction of filled ground under and adjacent to the house that was constructed). These during grading, and the filled ground after the completion of earthwork in 1982. reports accurately depicted the natural soil conditions,.the imported fill used Since 1982, a concrete crib-block retaining wall retaining about 3.5' of soil was constructed in the north-easterly corner of the lot. The down-slope face of this wall is in the order of 8' high. However, it appears that the base of the wall was extended down through the loose native.soils and also to hold the wall the findings and recommendations contained in the "Preliminary Soils footing (or bearing away from the face of slope. Both of these were following Investigation" of 1982. The report for the "Preliminary Soils Investigation" contained-a plot plan with topography with 1' contours. The plot plan was a reduced Zerox copy of the surveyed topography that was used later to prepare the gradlng plans. I used a hand level, this topography and my recollection of the site in 1982 to arrive at the fact that the wall retains only about 3.5 feet of fill. The retaining wall backfill appears (through the crib-block spaces) to be a select fill of granitic origin and it does not appear to have been compacted.. By assuming the fill and backfill to have minimum strength parameters and.to be compressible then the "worst case scenario" can be developed. .. 4015 TRIESTE DRIVE CARLSBAD, CALIFORNIA 92008 * (619) 720-9641 ~ ~~~ File NO35 03/23/89 The mlnlmum, conservative soil parameters for the "worst case" assumptions and the soll data from the 1982 reports are as follows: ... . .- Soil Condition: Undisturbed, Compacted, Uncompacted, firm native imported fill and select fill backflll Descriptlon of soil: R e d / T a n , Tan Silty Sand Tan Silty/Clayey Clayey Gravel (DG mix) Sand Maximum Density: 127 pcf 122 pcf 120-130 pcf Optimum Moisture: 12% 10.5% 8 to 10% Internal friction angle: 35 Deg. . 36 Deg. 29 Deg Coheslon intercept: 250 psf 120 psf 0 psf. * Relatlve compaction: @+)? 90+% 7 8% Expansive potential: S1 i ght None to Slight Compressibility Very low Very hlgh The followlng applicable parameters were computed frm the above data: .. Average fleld Density: 107.9 pcf 111.0 pcf Computed steepest 'slope ratlo for 10' hlgh slope for a factor of safety of 1.5.. OotSlociNoRmJ -i .. - ActiVe pressure (as 21.0 pcf 20.4- pcf 26.86 pcf fluid denslty) for wall with 3:12 batter and 1O:I sloping backfill " " A1 1 owable passive pressure for slope down & away from wall at 1O:l ratio and wall with 3:12 batter ?- a1 lowable foundation bearlng Value: 128 psf at surface & increaslng at 384 pcf per foot of depth. 2200 psf 2000 psf a psf foundations on (Do not bear this sol 1.) ... , 2 File #036 03/23/09 ~LUSIOtG2 .. It is mv oDinion that the retaining wall is stable and will preform satisfactbrlly at the present geometry-and as constructed. The shallow fill differential movement. While this fill is landscaped and is not depended .upon- should be recompacted if it is to support structures that are susceptible to A means should be provided to any future owner (possibly by recording a notice for support of anything, I see no logical reason for recompacting at this time. of some sort against the title).that construction in this area without removing and recompacting the loose fill ..If you have questions,.please to be.of: service is appreciated. Respectfully Submitted, iLLEGAL GKIxP\~JG Mu S 7 * P&J& C.H.Wood, RCE10778, GTE 903 cc: 3 submitted / RETENTION SYSTEMS, INC. P. 0. Box 2002 San Marcos, CA 92069-0680 Karch '29, 1589 Mr. Ron Banks 2740 Argonauta Street La Costa, CA 92005 Subject : Cribwall . - Banks Residence Job 88.001.1.03 .- , . Dear Mr. Banks: Street and have performed an engineering analysis in accordance with I have inspected the referenced cribwall located at 2740 Argonauta with a maximum height of 8 feet. In Exhibit 1 is a plan view, typi- our previous meeting. The cribwall is approximately 95 feet long cal cross-section, and as-built profile of the constructed cribwall. No test results were available to verify compaction within the crib- wall cells ... From observance of the open spaces in the face of the wall, it does not appear that the backfill soil has been compacted, substantially. Therefore, the worst-case geotechnical values spe- cified in the referenced reports were used for the cribwall analys,is. Factors of safety for overtukning and sliding as well as foundation In Exhibit 2 is a cribwall analysis for the existing 8-foot structure. pressures were analyzed, and were found to be well within acceptable, height of 6 feet was analyze<. In this case, it w+s assumed a worst- ,', limits. In addition, an alternate cribwall system with a maximum %all. Again, all values were found to be within acceptable limits. case surcharge consisting of a 2:l slope would be loading the crib- It is my professional opinion that the existing cribwall located at 2740 Argonauta Street is a stable structure and is satisfactorily performing its earth retaining function. It appears to have been constructed properly and is presently showing .. no signs of failure. ~. . "" RETENTION SYSTEMS, INC. P. 0. Box 2002 San Marcos, CA 92069-0680 Mr. Ron Banks March 29, 1989 Page 2 If you have any questions, please let me know. I appreciate the opportunity to serve you 'in this capacity.. '. Randall J. Hartman, P.E. Principal