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2024-03-12; City Council; ; Continuation of Proclamation of a Storm-Related Local Emergency for Repair of the Slope Between El Camino Real and Trieste Drive, Approval of Plans and Authorization of A
CA Review GH Meeting Date: March 12, 2024 To: Mayor and City Council From: Scott Chadwick, City Manager Staff Contact: Tom Frank, Transportation Director/City Engineer tom.frank@carlsbadca.gov, 442-339-2766 Subject: Continuation of Proclamation of a Storm-Related Local Emergency for Repair of the Slope Between El Camino Real and Trieste Drive, Approval of Plans and Authorization of Additional Appropriations for this Emergency District: 1 Recommended Action Adopt a resolution continuing the proclamation of a storm-related local emergency for repair of the slope between El Camino Real and Trieste Drive, approving the plans and authorizing additional appropriations in the amount of $955,000 for the Trieste Drive Slope Repair, Capital Improvement Program Project No. 6107. Executive Summary The atmospheric river in early February 2024 and the winter storm in January 2024, resulted in unexpected slope movement in an area between El Camino Real and Trieste Drive, with potential to affect nearby property, infrastructure, and the environment. Emergency repair of the slope area behind four homes on Trieste Drive is necessary to ameliorate the risk. Exhibit 4 shows the area requiring emergency slope repair. The City Manager, in his role as Director of Emergency Services, proclaimed a local emergency on Feb. 14, 2024, as shown in Exhibit 2, to expedite the slope repair. On Feb. 15, 2024, the City Council ratified the emergency proclamation so that the repair can continue to be exempted from the city’s normal bidding procedures and the necessary repairs can be completed as swiftly as possible. On Feb. 27, 2024, the City Council continued the emergency proclamation. Staff are requesting that the City Council continue the emergency proclamation again to complete the work. Construction projects that cost less than $200,000 can be awarded by the City Manager using informal bidding procedures under Carlsbad Municipal Code, or CMC, Section 3.28.080 – Construction Projects, subsections (B) and (H), which implement California Public Contract Code Section 22032. This project will cost approximately $3 million. Public Contract Code Sections 22035 and 22050 and CMC Sections 3.28.110(A) and 3.28.120 provide for an exemption from formal bidding March 12, 2024 Item #10 Page 1 of 16 procedures for emergency construction procurements. The emergency proclamation allows the city to use the exemption. However, California Public Contract Code Section 22050(c)(1) requires the City Council to review the emergency action at every subsequent City Council meeting to determine, by a four-fifths vote, whether there is a need to continue the emergency action. Staff recommend that the City Council continue the proclamation of the storm-related local emergency to allow for the swift repair of the slope, and approve the plans in Exhibit 3 and authorize additional appropriations in the amount of $955,000 by approving the resolution provided as Exhibit 1. Explanation & Analysis The slope area between El Camino Real and Trieste Drive, generally behind the backyards of four residential properties that front onto Trieste Drive (4215-4245 Trieste Drive), has experienced soil movement. The city has a Capital Improvement Program project (Project No. 6107) to repair the slope. The project was in the 50% design and environmental review stage. However, the recent severe storm events have created additional fissures in the soil that need to be repaired quickly. The City Engineer recommended expedited, or emergency, stabilization of the slope while the larger slope repair project proceeds through the design and environmental review and permitting process. The emergency proclamation allows the city to procure a contractor to perform the necessary emergency work to prevent or mitigate loss of, or damage to, property, essential public services and the environment. Staff and Urban Corps completed emergency protective measures at a cost of $5,774, which included debris removal and placement of tarps and stakes in the right-of-way. Upon proclamation of the emergency, Engineering Systems Inc., the city’s geotechnical engineering consultant, met with contractors to check on their availability and capabilities to perform the emergency work. Condon-Johnson & Associates, Inc. provided a cost estimate of $871,000 for the emergency work. The emergency work was initially intended to address the unexpected slope movement that occurred as a result of the recent atmospheric rivers and storms, not to perform the original scope of work of the Capital Improvement Program project. However, due to recent further slope movement, the city’s geotechnical engineering consultant has recommended performing the additional final repairs at the same time as the emergency work. The contractor Condon-Johnson’s estimate increased to $2,087,090 for the total cost, which includes the initial estimate of $870,990 for installation of 26 emergency shore stability pins, which stabilize the slope, and $1,216,100 for installation of an additional row of 28 shore stability pins and other more permanent repairs such as grading and re-compaction of the slope within the repair area, as shown in the plans in Exhibit 3. On March 6, 2024, staff issued a notice to proceed to the contractor to perform the emergency work. The emergency work is expected to start on March 12, 2024, and is expected to be completed by May 17, 2024. March 12, 2024 Item #10 Page 2 of 16 Fiscal Analysis Funding for the estimate of up to $2,023,626 for the emergency work will come from the funding in the General Capital Construction Fund for Capital Improvement Program Project No. 6107. Since the total emergency work will now include placement of an additional row of shore stability pins and slope grading and re-compaction, additional funds in the amount of $955,000 will need to be appropriated to Capital Improvement Program Project No. 6107 to cover the rest of the needed funding. Due to an increase in the emergency scope of work, staff have also increased the additional design, administrative, construction management, inspection and environmental monitoring costs that are anticipated. This emergency work could qualify for outside funding. The City Manager sent a letter to the California Governor’s Office of Emergency Services on Feb. 22, 2024, requesting any and all state and federal resources including, but not limited to, state assistance through the California Disaster Assistance Act. The state replied and subsequently requested supplemental information on the city’s budget and how recent storms impacted it. On Feb. 26, 2024, staff provided the requested supplemental information and the initial damage estimate of $1,293,774, which has now increased to almost $3 million. Trieste Drive Slope Repair Project Capital Improvement Program Project No. 6107 Total appropriated funds to date $2,362,600 Total expenditures and encumbrances to date -$338,974 Total available funding $2,023,626 Emergency work (slope repair) – Condon-Johnson -$2,087,090 Design and administrative costs (approximately 5%) -$104,400 Construction management and inspection (estimated) -$208,700 Environmental monitoring (estimated) -$50,000 Construction contingency (25%) -$521,800 Total estimated emergency CIP project costs -$2,971,990 Emergency protective measures – Urban Corps -$905 Staff labor and materials costs -$4,869 Total estimated emergency protective measures costs -$5,774 Total estimated project costs -$2,977,764 Additional appropriation needed $954,138 Additional appropriation needed (rounded) $955,000 March 12, 2024 Item #10 Page 3 of 16 Recommendation Staff recommend that the City Council continue the emergency proclamation to complete the emergency work at the slope near El Camino Real and Trieste Drive as swiftly as possible to prevent damage to nearby infrastructure and property, approve the plans and authorize additional appropriations of $955,000 for the project. Next Steps The contractor has started performing the emergency work with an estimated completion date of May 17, 2024. Staff have begun preparing the emergency contract, which will be presented for ratification to the City Council at a future date. Staff will return to the City Council again on March 19, 2024, to review the emergency action and ask the City Council to determine by a four-fifths vote whether there is a need to continue it. Environmental Evaluation The project was determined to be exempt from the California Environmental Quality Act, or CEQA, under Section 15301(d) and (f) of the CEQA Guidelines, which applies to projects for restoration or rehabilitation of deteriorated or damaged structures, and the addition of safety or health protection devices. None of the exceptions to the exemption applied to the project and a Notice of Exemption was filed on Jan. 25, 2023. Exhibits 1. City Council resolution 2. Proclamation of a Storm-related Local Emergency dated Feb. 14, 2024 3. Plans for Trieste Slope Stability Repair Project 4. Location map March 12, 2024 Item #10 Page 4 of 16 RESOLUTION NO. 2024-049 A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF CARLSBAD, CALIFORNIA, CONTINUING THE PROCLAMATION OF A STORM-RELATED LOCAL EMERGENCY FOR REPAIR OF THE SLOPE BETWEEN EL CAMINO REAL AND TRIESTE DRIVE, APPROVING THE PLANS AND AUTHORIZING ADDITIONAL APPROPRIATIONS IN THE AMOUNT OF $955,000 FOR THE TRIESTE DRIVE SLOPE REPAIR, CAPITAL IMPROVEMENT PROGRAM PROJECT NO. 6107 WHEREAS, on Feb. 4, 2024, the Governor of the State of California found that conditions of extreme peril exist in San Diego County and other counties due to the early February 2024 storms caused by the atmospheric river and proclaimed a state of emergency to make additional resources available to local governments, formalize emergency actions, and help the state prepare for the impact of the storms; and WHEREAS, the City Council empowers the City Manager, as Director of Emergency Services, to proclaim the existence of a local emergency when the city is affected by a public calamity and the City Council is not in session; and WHEREAS, conditions or threatened conditions of extreme peril to the safety of persons and property have arisen within the City of Carlsbad caused by an unexpected slope movement with potential to affect nearby property, infrastructure and the envirc>'nment; and WHEREAS, on Feb. 14, 2024, the City Manager/Director of Emergency Services proclaimed a storm-related local emergency for repair of the slope between El Camino Real and Trieste Drive, generally behind the backyards of four residential properties that front onto Trieste Drive (4215 -4245 Trieste Drive); and WHEREAS, Carlsbad Municipal Code, or CMC, Section 3.28.ll0(A) implements Public Contract Code Section 22035 and provides an exemption from formal bidding procedures for emergency construction procurements, and to use the emergency exemption, CMC Section 3.28.120 and Public Contract Code Section 22050 require a proclamation of a local public emergency by a four-fifths vote of the City Council, or by the City Manager subject to ratification by a four-fifths vote of the City Council at the next City Council meeting; and WHEREAS, on Feb. 15, 2024, the City Council ratified the proclamation of a local emergency as the emergency proclamation and emergency exemption are appropriate in this instance because the Exhibit 1 March 12, 2024 Item #10 Page 5 of 16 emergency work appears to be caused by unexpected slope movement, which could pose a threat to the public, property, infrastructure and the environment; and WHEREAS, on Feb. 27, 2024, the City Council continued the emergency proclamation; and WHEREAS, the city contracted with Engineering Systems, Inc., or ESi, an engineering firm with geotechnical expertise, to inspect, assess and analyze the slope between El Camino Real and Trieste Drive, and ESi advised the city that further repair work would need to be completed in addition to the initial proposed emergency work due to recent continued slope movement; and WHEREAS, ESi developed base plans and geological cross sections, for the proposed repair work that are on file with the City Clerk; and WHEREAS, city engineering staff reviewed the analysis and plans developed by ESi and determined that the proposed work met the city's engineering codes, standards, and policies, and that the proposed repair work would ameliorate the risk and prevent damage to nearby infrastructure and property; and WHEREAS, the total cost of the emergency work has increased to $2,977,764, which now requires additional appropriations in the amount of $955,000; and WHEREAS, a contractor is expected to commence the emergency work on March 12, 2024, and is expected to complete the work by May 17, 2024; and WHEREAS, staff request the City Council continue the emergency proclamation again to enable completion of the work and authorize additional appropriations in the amount of $955,000 for the Trieste Drive Slope Repair, Capital Improvement Program Project No. 6107; and WHEREAS, Public Contract Code Section 22050{c)(l) requires the City Council to review the emergency action at every subsequent City Council meeting to determine, by a four-fifths vote, whether this is a need to continue the emergency action; and WHEREAS, the project was determined to be exempt from the California Environmental Quality Act, or CEQA, under Section 15301{d) and (f) of the CEQA Guidelines, which applies to projects for restoration or rehabilitation of deteriorated or damaged structures, and the addition of safety or health protection devices; and WHEREAS, none of the exceptions to the CEQA exemption applied to the project and a Notice of Exemption was filed on Jan. 25, 2023. March 12, 2024 Item #10 Page 6 of 16 NOW, THEREFORE, BE IT RESOLVED by the City Council of the City of Carlsbad, California, as follows: 1.That the above recitations are true and correct. 2.That the Proclamation of a Storm-related Local Emergency for repair of the slope near El Camino Real and Trieste Drive is continued. 3.That the plans for the Trieste Drive Slope Repair, Capital Improvement Program Project No. 6107, are approved and on file at the City Clerk's Office. 4.That the City Manager or designee is authorized to appropriate an additional $955,000 to the Trieste Drive Slope Repair, Capital Improvement Program Project No. 6107. PASSED, APPROVED AND ADOPTED at a Regular Meeting of the City Council of the City of Carlsbad on the 12th day of March, 2024, by the following vote, to wit: AYES: NAYS: ABSTAIN: ABSENT: BLACKBURN, BHAT-PATEL, ACOSTA, BURKHOLDER, LUNA. NONE. NONE. NONE. KEITH BLACKBURN, Mayor (10v ftSHERRY FREISINGER, City Clerk (SEAL) March 12, 2024 Item #10 Page 7 of 16 March 12, 2024 Item #10 Page 8 of 16 ~ Proclamation of .:, Local Emergency Exhibit 2 City Hall 1200 Carlsbad Village Drive Carlsbad, CA 92008 FOR STORM-RELATED EMERGENCY PROTECTION ACTIVITIES TO REPAIR A SLOPE BETWEEN EL CAMINO REAL AND TRIESTE DRIVE WHEREAS, on February 4, 2024, the Governor of the State of California found that conditions of extreme peril exist in San Diego County and other counties due to the early February 2024 storms caused by a powerful, slow-moving atmospheric river and proclaimed a state of emergency to make additional resources available to local governments, formalize emergency actions and help the state prepare for the impact of the storms; and WHEREAS, California Government Code Section 8630 allows the City Council or an official designated by ordinance adopted by the City Council, to proclaim a local emergency; and WHEREAS, the City of Carlsbad's Emergency Services Ordinance, including Carlsbad Municipal Code Section 6.04.lO0(A)(l), empowers the City Manager, as the City of Carlsbad's Director of Emergency Services, to proclaim the existence of a local emergency, subject to ratification by the City Council, when there exists, or there is threatened to exist, conditions of extreme peril to the safety of persons and property within the City of Carlsbad; and WHEREAS, in the case of an emergency, California Public Contract Code Section 22050 allows the City Council, or a person delegated the authority by the City Council, to repair or replace a public facility, take any directly related and immediate action required by that emergency, and procure the necessary equipment, services and supplies for those purposes without giving notice for bids to let contract; and WHEREAS, the repair project was determined to be exempt from the California Environmental Quality Act, or CEQA, under Section 15301 (d) and (f) of the CEQA Guidelines, which applies to projects for restoration or rehabilitation of deteriorated or damaged structures and the addition of safety or health protection devices; and WHEREAS, none of the exceptions to the CEQA exemption applied to the project and a Notice of Exemption was filed on Jan . 25, 2023; and WHEREAS, the Director of Emergency Services finds : 1. The National Weather Service issued multiple winter storm warnings, high wind warnings, wind advisories, and flood and flash flood watches throughout the State of California in anticipation of a powerful, slow-moving, atmospheric river in early February. 2. Conditions of extreme peril to the safety of persons and property have arisen within the City of Carlsbad caused by the powerful, slow-moving atmospheric river in early February, requiring immediate action to prevent or mitigate the loss or impairment of life, health, and property. March 12, 2024 Item #10 Page 9 of 16 Local Emergency -REPAIR OF TH E SLOPE BETWEEN EL CAMINO REAL AND TRIESTE DRIVE Page 2 3. Prior to the early February 2024 storms, powerful winter storms that occurred less than a month ago had amplified the impact of local flooding due to the record-breaking a·mount of rainfall including a severe rainstorm which began on January 22, 2024 ("January Storm"), in all dropping 2 to 3 inches of rain in a three-hour period, a total that exceeds that of an average wet month and rivals the rainfall needed to spur a 100-year flood event. 4. On Jan. 22, 2024, the County of San Diego proclaimed an emergency due to the January Storm, which the county characterized as a thousand-year storm, and which caused drastic flooding and flash flooding in the county. 5. The conditions of the early February 2024 storms, in addition to the impacts of the January Storm, created an emergency condition on a slope that is located between El Camino Real and Trieste Drive, generally behind the backyards of four residential properties that front onto Trieste Drive (4215 -4245 Trieste Drive) causing rapid slope movement and additional fissures in the soil that warrant immediate emergency repair. 6. That the City Council of the City of Carlsbad was not in session and could not be immediately called into session. NOW, THEREFORE, IT IS PROCLAIMED that, subject to review and ratification by the City Council at its next meeting, a local emergency now exists in the City of Carlsbad, California, on a slope between El Camino Real and Trieste Drive, generally behind the backyards of four residential properties that front onto Trieste Drive (4215 -4245 Trieste Drive). IT IS FURTHER PROCLAIMED AND ORDE D that, under California Public Contract Code Section 22050 and Carlsbad Municipal Code cti ns 3.28.llO(A) and 3.28.120, city staff may proceed at once to obtain the necessary pe mits, quipment, services, and supplies to repair the slope between El Camino Real and Trieste Dn enerally behind the backyards of four residential properties that front onto Trieste Driv -4245 Trieste Drive), without giving notice for bids to let contracts. Dated: \4r~ SCOTT CHADWICK City Manager/Director of Emergency Services Exhibit 3 March 12, 2024 Item #10 Page 10 of 16 TR I E S T E SL O P E ST A B I L I T Y RE P A I R PO R T A PL A C E & TR I E S T E DR I V E CA R L S B A D , CA L I F O R N I A SH E E T IN D E X so S1 S2 S3 S4 SS CO V E R SH E E T OV E R A L L PL A N VI E W GE O L O G I C CR O S S SE C T I O N S GE O L O G I C CR O S S SE C T I O N S GE O L O G I C CR O S S SE C T I O N AN D MA P S SH E A R PI N PR O F I L E AN D DE T A I L S RE V 0 0 0 0 0 0 ID PR O J E C T LO C A T I O N GE N E R A L NO T E S DE S I G N LO A D S 1. AL L LO A D S PE R TH E 20 2 2 CA L I F O R N I A BU I L D I N G CO D E SN O W GR O U N D SN O W LO A D (P g ) - 0 PS F WI N D BA S I C WI N D SP E E D (3 SE C O N D GU S T , VJ - 96 MP H WI N D IM P O R T A N C E FA C T O R (l w ) - 1. 0 BU I L D I N G CA T E G O R Y - II WI N D EX P O S U R E - C SE I S M I C SI T E CL A S S - D SE I S M I C IM P O R T A N C E FA C T O R (l e ) - 1. 0 Ss - 1. 0 3 0 g Sd s - 0. 7 4 7 g S1 - 0. 3 9 9 g Sd 1 - D. 4 2 6 g SE I S M I C DE S I G N CA TE GO R Y - D SC O P E OF WO R K TH I S WO R K CO N S I S T S OF FU R N I S H I N G AN D PL A C I N G ST E E L SO L D I E R PI L E S IN T O DR I L L E D HO L E S . GE N E R A L NO T E S 1. TH E SP E C I F I C A T I O N S AN D DR A W I N G S ON L Y CO N S T I T U T E A PO R T I O N OF TH E CO N T R A C T DO C U M E N T S . TH E OW N E R AN D CO N T R A C T O R AR E RE S P O N S I B L E FO R TH E LE G A L AS P E C T S OF TH E DO C U M E N T S IN C L U D I N G SU C H AS P E C T S AS IN S U R A N C E , WA R R A N T I E S , PA Y M E N T PR O C E D U R E S , OS H A , ET C . 2. TH E SU B J E C T SP E C I F I C A T I O N S AN D DR A W I N G S WE R E PR E P A R E D SO L E L Y FO R US E BY AT TH E SP E C I F I E D AD D R E S S . 3. CO N T R A C T O R IS RE S P O N S I B L E FO R AL L ME A N S AN D ME T H O D S . 4. ES I WA S NO T RE T A I N E D TO PR O v 1 D E SI T E SU P E R v 1 S I O N OF AN Y TY P E , SA F E T Y IN S P E C T I O N S , PU N C H LI S T S ET C . TH E PR E S E N C E OF AN Y ES I EM P L O Y E E ON SI T E AT AN Y TI M E DU R I N G TH E CO N S T R U C T I O N SH A L L NO T BE CO N S T R U E D TO ME A N TH A T ES I HA S AS S U M E D AN Y OF TH E S E RO L E S OR RE S P O N S I B I L I T I E S . 5. TO TH E FU L L E S T EX T E N T PE R M I T T E D BY LA W , OW N E R AN D CO N T R A C T O R SH A L L IN D E M N I F Y , DE F E N D AN D HO L D HA R M L E S S EN G I N E E R I N G SY S T E M S IN C . , FR O M AN D AG A I N S T AN Y AN D AL L LO S S , CO S T , EX P E N S E , DA M A G E , IN J U R Y , LI A B I L I T Y , CL A I M , DE M A N D , PE N A L TY OR CA U S E OF AC T I O N , DI R E C T L Y OR IN D I R E C T L Y AR I S I N G OU T OF , OR RE S U L T I N G FR O M OR RE L A T E D TO TH E WO R K PE R F O R M E D HE R E U N D E R . 6. CO N T R A C T O R IS RE S P O N S I B L E TO FO L L O W PR O v 1 S I O N S OF AP P L I C A B L E BU I L D I N G CO D E S , AL L CI T Y RE Q U I R E M E N T S , AN D AL L RE F E R E N C E D DO C U M E N T S . EX I S T I N G CO N D I T I O N S 1. CO N T R A C T O R SH A L L FI E L D VE R I F Y AL L DI M E N S I O N S PR I O R TO PR E P A R A T I O N OF SH O P DR A W I N G S AN D TH E ST A R T OF FA B R I C A T I O N AN D CO N S T R U C T I O N . AN Y DI S C R E P A N C I E S AR E TO BE RE P O R T E D IM M E D I A T E L Y TO TH E EN G I N E E R . 2. CO N T R A C T O R SH A L L v1 S I T TH E SI T E PR I O R TO CO N S T R U C T I O N . AN Y IN S T A L L A T I O N CO N F L I C T S OR DI S C R E P A N C I E S AR E TO BE RE P O R T E D IM M E D I A T E L Y TO TH E EN G I N E E R . 3. DI M E N S I O N S SH O U L D NO T BE SC A L E D FR O M TI H E DR A W I N G S . AN Y QU E S T I O N S RE G A R D I N G SP E C I F I C DI M E N S I O N S SH O U L D BE CO O R D I N A T E D TH R O U G H TH E EN G I N E E R . CO O R D I N A T I O N 1. TI H E ST R U C T U R A L EN G I N E E R MA I N T A I N S NO RE S P O N S I B I L I T Y FO R TI H E GE N E R A L OR SU B - C O N T R A C T O R S , OR TH O S E WO R K I N G IN SU C H CA P A C I T I E S , IN TI H E ME T H O D S US E D IN TH E EX E C U T I O N OF TH E WO R K , AN D SA F E T Y PR E C A U T I O N S OR LA C K TH E R E O F TA K E N AT TH E PR O J E C T SI T E . 2. CO N T R A C T O R SH A L L BE RE S P O N S I B L E FO R ID E N T I F Y I N G HA Z A R D O U S MA T E R I A L S , IF AN Y , AR E PR E S E N T ON TI H E PR O J E C T SI T E . 3. CO N T R A C T O R SH A L L BE RE S P O N S I B L E FO R AL L TE M P O R A R Y SH O R I N G TH A T IS US E D . 4. DE M O L I T I O N AN D CO N S T R U C T I O N AR E TO BE DO N E IN SU C H A MA N N E R TI H A T NO SA F E T Y HA Z A R D S OC C U R TO PE D E S T R I A N S OR AN Y OT H E R PE R S O N S OR PR O P E R T Y . 5. TI H E CO N T R A C T O R SH A L L KE E P TI H E WO R K S I T E IN CL E A N AN D FR E E FR O M DE B R I S AT AL L TI M E S . UP O N CO M P L E T I O N OF TH E WO R K , TH E SI T E SH A L L BE LE F T IN A CO N D I T I O N TH E SA M E AS TH A T PR I O R TO CO N S T R U C T I O N EX C E P T AS NO T E D IN TH E CO N T R A C T O R ' S AG R E E M E N T . 6. ES I IS NO T RE S P O N S I B L E FO R OB T A I N I N G PE R M I T S AN D AL L CO S T S AS S O C I A T E D WI T I H OB T A I N I N G AL L NE C E S S A R Y PE R M I T S FO R TH E PR O J E C T . CO N C R E T E 1. AL L CO N C R E T E CO N S T R U C T I O N SH A L L BE IN AC C O R D A N C E WI T H LA T E S T ED I T I O N OF "A C I 31 8 - BU I L D I N G CO D E RE Q U I R E M E N T S FO R RE I N F O R C E D CO N C R E T E " , "A C I 11 7 - ST A N D A R D SP E C I F I C A T I O N S FO R TO L E R A N C E FO R CO N C R E T E CO N S T R U C T I O N AN D MA T E R I A L S " , AN D "A C I 31 0 - SP E C I F I C A T I O N S FO R ST R U C T U R A L CO N C R E T E FO R BU I L D I N G S " . 2. CO N C R E T E SH A L L HA V E A 28 DA Y UL T I M A T E CO M P R E S S I V E ST R E N G T I H , f' c , OF 30 0 0 PS I a. PO R T L A N D CE M E N T : AS T M C1 5 0 , TY P E I b. MA X I M U M WA T E R / C E M E N T RA T I O = 0. 4 5 c. WA T E R - R E D U C I N G AD M I X T U R E S : AS T M C4 9 4 d. NO R M A L WE I G H T AG G R E G A T E S : AS T M C3 3 e. AI R EN T R A I N AL L EX T E R I O R CO N C R E T E (A D M I X T U R E AS T M C2 6 0 ) 5% TO 7% VO I D S 3. DO NO T US E CA L C I U M CH L O R I D E AD M I X T U R E S UN D E R AN Y CI R C U M S T A N C E S . 4. AL L EX P O S E D ED G E S OF CO N C R E T E TO HA V E 3/ 8 " 45 " CH A M F E R . 5. TH E R E SH A L L BE NO HO R I Z O N T A L CO N S T R U C T I O N JO I N T S IN MO N O L I T H I C CO N C R E T E PO U R S . AD D I T I O N A L RE I N F O R C I N G AT CO N S T R U C T I O N JO I N T S SH A L L BE SP E C I F I E D BY TH E ST R U C T U R A L EN G I N E E R . 6. RE I N F O R C I N G BA R S SH A L L CO N F O R M TO CH A P T E R 19 OF TI H E CO D E , AS T M A6 1 5 , GR A D E 60 UN O . DE F O R M A T I O N S SH A L L BE IN AC C O R D A N C E WI T H AS T M A- 3 0 5 . 7. MI N I M U M SP L I C E LE N G T H FO R RE I N F O R C I N G ST E E L BA R S IN CO N C R E T E SH A L L BE AS RE Q U I R E D FO R CL A S S B SP L I C E S PE R AC I 31 8 SE C T I O N 12 . 1 5 . 1 UN O . 8. RE I N F O R C I N G ST E E L SH A L L BE DE T A I L E D IN AC C O R D A N C E WI T I H TI H E "A C I MA N U A L OF ST A N D A R D PR A C T I C E FO R DE T A I L J N G RE I N F O R C E D CO N C R E T E ST R U C T U R E S " LA T E S T ED I T I O N . BA R S SH A L L BE CL E A N OF RU S T , GR E A S E , OR OT I H E R MA T E R I A L S LI K E L Y TO IM P A I R BO N D . 9. PE R I O D I C SP E C I A L IN S P E C T I O N SH A L L BE PE R F O R M E D FO R TH E FO L L O W I N G IN AC C O R D A N C E WI T H 20 2 2 CB C TA B L E 17 0 5 . 3 : 9. 1 . IN S P E C T RE I N F O R C E M E N T AN D PL A C E M E N T 9. 2 . VE R I F Y US E OF RE Q U I R E D DE S I G N MI X 9. 3 . '1 1 : : R I F Y MA I N T E N A N C E OF SP E C I F I E D CU R I N G TE M P E R A T U R E AN D TE C H N I Q U E S . 9. 4 . IN S P E C T FO R M W O R K FO R SH A P E , LO C A T I O N AN D DI M E N S I O N S OF TI H E CO N C R E T E ME M B E R BE I N G FO R M E D . 10 . CO N T I N U O U S SP E C I A L IN S P E C T I O N SH A L L BE PE R F O R M E D FO R TI H E FO L L O W I N G IN AC C O R D A N C E WI T H 20 2 2 CB C TA B L E 17 0 5 . 3 : 10 . 1 . PR I O R TO CO N C R E T E PL A C E M E N T , FA B R I C A T E SP E C I M E N S FO R ST R E N G T H TE S T S , PE R F O R M SL U M P AN D AI R CO N T E N T TE S T S , AN D DE T E R M I N E TH E TE M P E R A T U R E OF TH E CO N C R E T E . 10 . 2 . IN S P E C T CO N C R E T E FO R PR O P E R AP P L I C A T I O N TE C H N I Q U E S . ST R U C T U R A L ST E E L 1. ST R U C T U R A L ST E E L SH A L L CO M P L Y WI T I H TI H E FO L L O W I N G GR A D E S W- S H A P E S : AS T M A9 9 2 , Fy = 50 KS I 2. AL L ST R U C T U R A L ST E E L DE T A I L S AN D CO N N E C T I O N S SH A L L CO N F O R M WI T H TH E AI S C "M A N U A L OF ST E E L CO N S T R U C T I O N " UN L E S S OT I H E R ' M S E NO T E D . 3. AL L WE L D I N G SH A L L BE PE R AW S D1 . 1 . 4. US E E7 0 EL E C T R O D E S FO R AL L ST R U C T U R A L ST E E L \\ £ L O S . DR I L L E D SH A F T S 1. TI H I S WO R K CO N S I S T S OF FU R N I S H I N G AN D IN S T A L L I N G DR I L L E D SH A F T S FO R SO L D I E R PI L E S . TH E DR I L L E D SH A F T S AR E RE I N F O R C E D WI T H SO L D I E R PI L E S IN S T E A D OF RE I N F O R C I N G ST E E L CA G E S . 2. SH A F T S SH A L L BE EX C A V A T E D TO TI H E RE Q U I R E D DE P T I H AS SH O W N IN TI H E PL A N S . TI H E MI N I M U M DI A M E T E R OF TH E SH A F T SH A L L BE AS SH O W N IN TI H E PL A N S . TH E EX C A V A T I O N SH A L L BE CO M P L E T E D IN A CO N T I N U O U S OP E R A T I O N US I N G EQ U I P M E N T CA P A B L E OF EX C A V A T I N G TH R O U G H TH E TY P E OF MA T E R I A L EX P E C T E D TO BE EN C O U N T E R E D . 3. TI H E CO N T R A C T O R MA Y US E TE M P O R A R Y TE L E S C O P I N G CA S I N G TO CO N S T R U C T TI H E SH A F T S . 4. IF TI H E SH A F T EX C A V A T I O N IS ST O P P E D TI H E SH A F T SH A L L BE SE C U R E D BY IN S T A L L A T I O N OF A SA F E T Y CO V E R . IT SH A L L BE TH E CO N T R A C T O R ' S RE S P O N S I B I L I T Y TO EN S U R E TH E SA F E T Y OF TH E SH A F T AN D SU R R O U N D I N G SO I L AN D TH E ST A B I L I T Y OF TH E SI D E W A L L S . A TE M P O R A R Y CA S I N G , SL U R R Y , OR OT H E R ME T H O D S SH A L L BE US E D IF NE C E S S A R Y TO EN S U R E SU C H SA F E T Y AN D ST A B I L I T Y . 5. WH E R E CA ~ N G IN CO N D I T I O N S AR E EN C O U N T E R E D , NO FU R T I H E R EX C A V A T I O N 1'1 1 L L BE AL L O W E D UN T I L TH E CO N T R A C T O R HA S IM P L E M E N T E D TH E ME T H O D TO PR E V E N T GR O U N D CA v1 N G AS SU B M l f f i D TO TH E EN G I N E E R . 6. EX C A V A T E TH E HO L E FO R TH E DR I L L E D SH A F T WI T H I N 3 IN C H E S OF Tl - I E PL A N LO C A T I O N . PL A C E TH E SO L D I E R PI L E WI T H I N TH E HO L E SO IT IS VE R T I C A L AN D PL U M B , TO WI T H I N 0. 5 PE R C E N T OF TI H E LE N G T I H BA S E D ON TI H E TO T A L LE N G T I H OF TI H E PI L E . . PL A C E TI H E SO L D I E R PI L E SO TH A T TH E FL A N G E S AR E PA R A L L E L TO TH E CE N T E R L I N E OF TH E RO W OF DR I L L E D SH A F T S . DO NO T AL L O W TH E OR I E N T A T I O N OF TH E FL A N G E S TO VA R Y BY MO R E TI H A N 10 DE G R E E S . SU P P O R T TI H E SO L D I E R PI L E SO TI H A T IT DO E S NO T MO V E DU R I N G CO N C R E T E PL A C E M E N T . 7. NO MO R E TH A N 12 IN C H E S OF LO O S E OR DI S T U R B E D MA T E R I A L SH A L L BE PR E S E N T AT TI H E BO T T O M OF TH E SH A F T JU S T PR I O R TO BE G I N N I N G CO N C R E T E PL A C E M E N T . 8. TH E EX C A V A T E D SH A F T SH A L L BE IN S P E C T E D AN D RE C E I V E AC C E P T A N C E BY TH E EN G I N E E R PR I O R TO PR O C E E D I N G WI T I H CO N S T R U C T I O N . 9. WH E N OB S T R U C T I O N S AR E EN C O U N T E R E D , TH E CO N T R A C T O R SH A L L NO T I F Y TH E EN G I N E E R PR O M P T L Y . AN OB S T R U C T I O N IS DE F I N E D AS A SP E C I F I C OB J E C T (I N C L U D I N G , BU T NO T LI M I T E D TO , BO U L D E R S , LO G S , AN D PR E v 1 0 U S L Y FA B R I C A T E D OB J E C T S ) EN C O U N T E R E D DU R I N G TH E SH A F T EX C A V A T I O N OP E R A T I O N TH A T PR E V E N T S OR HI N D E R S TH E AD V A N C E OF TI H E SH A F T EX C A V A T I O N . TI H E ME T I H O D OF RE M O V A L OF SU C H OB S T R U C T I O N S , AN D TI H E CO N T I N U A T I O N OF EX C A V A T I O N SH A L L BE AS PO R P O S E D BY TI H E CO N T R A C T O R AN D AP P R O V E D BY TI H E EN G I N E E R . 10 . PL A C E CO N C R E T E IN PR E D R I L L E D HO L E S IM M E D I A T E L Y AF T E R CO M P L E T I O N OF SO L D I E R PI L E IN S T A L L A T I O N , AN D 1' 1 1 T H AP P R O V A L OF TH E EN G I N E E R . PL A C E CO N C R E T E CO N T I N U O U S L Y UN T I L CO N C R E T E AT TI H E TO P OF TI H E PR E D R I L L E D HO L E IS FR E E OF WA T E R , SO I L , AN D DE B R I S , AN D UN C O N T A M I N A T E D CO N C R E T E EX T E N D S TO TI H E EL E V A T I O N SH O W N . 11 . TH E CO N T R A C T O R MA Y PL A C E CO N C R E T E US I N G TH E FR E E FA L L ME T H O D PR O v 1 D E D TH E DE P T H OF WA T E R IS LE S S TH A N 6 IN C H E S AN D TH E CO N C R E T E FA L L S WI T H O U T ST R I K I N G TI H E SI D E S OF TI H E HO L E . PO U R I N G CO N C R E T E AL O N G TI H E WE B OF TI H E SO L D I E R PI L E IS AC C E P T A B L E . US E PR O C E D U R E S FO R CO N C R E T E PL A C E M E N T TH A T EN S U R E TH E CO N C R E T E IN TI H E PR E D R I L L E D HO L E FO R M S A MO N O L I T I H I C , HO M O G E N E O U S UN I T . 12 . IF A TE M P O R A R Y CA S I N G IS US E D , FI L L TH E SP A C E BE T W E E N TH E CA S I N G AN D TH E SO L D I E R PI L E WI T I H PI L E CO N C R E T E AS TI H E CA S I N G IS WI T I H D R A W N , MA I N T A I N I N G A MI N I M U M 5- F O O T HE A D OF BA C K F I L L AB O V E TI H E BO T T O M OF TI H E CA S I N G . A SL I G H T DO W N W A R D MO V E M E N T OF TH E CA S I N G WH I L E EX E R T I N G DO W N W A R D PR E S S U R E , OR HA M M E R I N G OR v1 B R A T I N G TH E CA S I N G IS PE R M l f f i D TO FA C I L I T A T E EX T R A C T I O N . 13 . CH E C K TH E PO S I T I O N , TH E '1 1 : : R T I C A L AL I G N M E N T , AN D OR I E N T A T I O N OF TH E SO L D I E R PI L E IM M E D I A T E L Y AF T E R CO N C R E T E PL A C E M E N T . MA K E CO R R E C T I O N S AS NE C E S S A R Y TO ME E T TI H E AB O V E TO L E R A N C E S . 14 . TH E IN S T A L L A T I O N SE Q U E N C E SH A L L BE SU C H TH A T NO DR I L L E D SH A F T IS IN S T A L L E D AD J A C E N T TO EI T I - I E R AN OP E N DR I L L E D SH A F T EX C A V A T I O N OR A DR I L L E D SH A F T IN WH I C H TH E CO N C R E T E HA S LE S S TH A N A 48 - H O U R CU R E . IN S T A L L I N G TH E SH A F T S IN AN AL TE R N A TI N G SE Q U E N C E OR AN Y 01 1 - I E R SE Q U E N C E TH A T ME E T S 11 - 1 1 S CR I T E R I A IS PE R I A I S S I B L E . 15 . PR O T E C T I O N OF UN A T T E N D E D OP E N SH A F T S : CA R E SH A L L BE EX E R C I S E D AS TO CO V E R UN A T T E N D E D OP E N SH A F T S . TE M P O R A R Y C0 " 1 : : R S SH A L L BE OF AD E Q U A T E ST R E N G T H TO PR E V E N T A PE R S O N OR AN I M A L FR O M FA L L I N G IN . NO DR I L L E D SH A F T EX C A V A T I O N SH A L L BE LE F T UN - P O U R E D OV E R N I G H T . 16 . TH E CO N T R A C T O R SH A L L BE RE S P O N S I B L E FO R TH E ME A N S AN D ME T H O D S US E D TO CO N S T R U C T TH E DR I L L E D SH A F T S . AN Y TE M P O R A R Y GR A D I N G , EX C A V A T I O N , EM B A N K M E N T , AG G R E G A T E , DR A I N A G E , SH E E T I N G , ET C . NE E D E D TO CO M P L E T E TI H E WO R K SH A L L BE IN C L U D E D IN TH E BI D PR I C E FO R TH E DR I L L E D SH A F T S . SU B M I T T A L S 1. TI H E CO N T R A C T O R SH A L L SU B M I T TI H E FO L L O W I N G TO TI H E EN G I N E E R : 1.1. SO L D I E R PI L E WO R K PL A N IN C L U D I N G : 1. 1 . 1 . CO N S T R U C T I O N SC H E D U L E AN D SE Q U E N C E . 1. 1 . 2 . DE S C R I P T I V E DA T A AN D OP E R A T I N G PR O C E D U R E FO R EQ U I P M E N T TO BE US E D . 1. 1 . 3 . ME T H O D OF DR I L L I N G , CL E A N O U T , AN D DI S P O S A L OF DR I L L I N G SP O I L S , IN C L U D I N G WA T E R OR CO N T A M I N A T E D CO N C R E T E EX P E L L E D FR O M TH E TO P OF TH E HO L E OR CA S I N G . 1. 1 . 4 . ME T H O D FO R EN S U R I N G PR E D R I L L E D HO L E ST A B I L I T Y . IF TE M P O R A R Y CA S I N G IS PR O P O S E D , PR O v 1 D E MA TE R I AL , SI Z E , IN S T A L L A T I O N AN D RE M O V A L IN F O R M A T I O N . 1. 1 . 5 . DE T A I L S OF SO L D I E R PI L E IN S T A L L A T I O N AN D BR A C I N G , IN C L U D I N G CE N T R A L I Z E R S . 1. 1 . 6 . DE T A I L S OF CO N C R E T E PL A C E M E N T IN C L U D I N G OP E R A T I O N A L PR O C E D U R E S FO R PU M P I N G AN D TR E M I E ME T I H O D S . 1.2 PE R S O N N E L QU A L i Fl CA T I O N S . 1. 3 MA T E R I A L S CE R T I F I C A T E S OF CO M P L I A N C E AN D QU A L I T Y CO M P L I A N C E DO C U M E N T S SI Z E , GR A D E , AN D ST R E N G T H OF MA T E R I A L S TO BE US E D . 1. 4 SH O P AS S E M B L Y AN D ER E C T I O N DE T A I L S , IN C L U D I N G : 1. 4 . 1 PL A N AN D PR O F I L E v1 E W S WI T H SO L D I E R PI L E LO C A T I O N S SH O W N AN D NU M B E R E D . 1. 4 . 2 ME M B E R S AN D CO N N E C T I O N S FO R AN Y PO R T I O N OF TH E SY S T E M NO T SH O W N AR E TO BE DE T A I L E D BY TI H E CO N T R A C T O R AN D IN D I C A T E D ON TI H E WO R K I N G DR A W I N G S . 1. 4 . 3 IN D I C A T E AL L WE L D S BY ST A N D A R D WE L D I N G SY M B O L S OF TI H E AW S A2 . 4 . 2. TH E CO N T R A C T O R SH A L L SU B M I T ST A M P E D WO R K I N G DR A W I N G S TO TH E EN G I N E E R FO R TI H E FO L L O W I N G : 2. 1 . CO N T R A C T O R DE S I G N E D TE M P O R A R Y GR O U N D SU P P O R T . 2. 2 . MI X DE S I G N S FO R ST R U C T U R A L CO N C R E T E . 3. MI L L TE S T RE P O R T S FO R GR A D E 60 RE I N F O R C I N G ST E E L SH A L L BE SU B M I T T E D TO SE O R PR I O R TO PL A C E M E N T OF CO N C R E T E . ■ - u :z : Q) >, C " 0 0 (. I ) 3; : CX ) .c ~ .: : s : . .. - Cl . w ~ <. D 1- - c, 0 N .- U1 o. . _ N Ct ' J 0 >- ~ 0 (/ ) c : <; ( f f i o a, o I (. . 9 -+ - " :+ - ' <. D z <l ' . :: : , a, " r< ) - U) ~ 0:: : : : : LO -~ ,- . , Wt " ' ) >- - WN i. . . . 0 1 Z LO -s ! - C. 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'- I 24 0 I I I I I \ {, B- 5 16 0 12 0 Ac c e s · Ro a d i Gr o u n d w a t e r at tim e of dr i l l i n g me r g e n c y I I I J Oc i g i n a l I I ISh e a r Pi n Cr ek Cr e e k El Ca m i n o Re a l B- 6 . I . . I j · • • 20 0 -9 B- 5 1° ,ss '" f} ~ ; ' s ~ _ ' c ';_, ~ i c, ' " ~-'-- - - - 7- a . > - C f c a c - _c· 3 s c c c , ' - - '' ' - I ' el - -_) ; - ,< - . ~ = : ~ ~ ~ - = : - : - _ : - __ _: : _ = : . : - - ~ - - - F _ ~ < - - · = ,. . . . - ,- _ - , B e , , , . - ~ ~- Qal 16 0 - __ : ; : : , , . . , . , , ,- ,,_ - ~ -, ; - .e . . _ ., - - a 00 00 0 40 80 12 0 16 0 20 0 24 0 28 0 32 0 36 0 40 0 4 4 0 4 8 0 52 0 5 6 0 60 0 Re l a t i v e Di s t a n c e (f e e t ) GE O L O G I C CR O S S SE C TI O N S RE P A I R PH A S E 1 -t J! ! -C: 0 ·. c ; ~ a, -LL . I -t J! ! -C: 0 ·. c ; l LL . 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B- 6 I I I I • I . 70 0 -3 B-5 ·en s i o n ba c k ~ 16 0 ss .. , el / i 16 0 UJ r al - -3 12 0 oo · w 0 40 80 12 0 1 6 0 20 0 24 0 2 8 0 32 0 36 0 40 0 4 4 0 4 8 0 52 0 56 0 60 0 Re l a t i v e Di s t a n c e (f e e t ) GE O L O G I C CR O S S SE C TI ONS RE P A I R PH A S E 2 -t .! -C 0 ·. i : ; ~ QI UJ SC A LE: NT S ■ - (_ ) :z >, 0 Ul 3 2- ' < w ~ f- - - 0 U) 0. . . >- C U) 0 ~ (. ' . ) - :z < I : DC LD wn WN :z LD (. ' . ) - :z w QJ C 0 CD _c - o. _ <D ON - N 01 0 0 a, - <I : <l ) (_ ) ~ :: , U) <l ) C '> ~ I <D ,. , . . , ,. , . . , ~ a, -s t - CJ ) ~ PR O J E C T LO C A T I O N POR T A PL A C E AN D TR I E ST E DR I V E , CA R L S B A D , CA LI F OR NI A ES i PR OJ E C T NO . : 96 1 5 1 DA T E : 04 MA R 20 2 4 >- 1- m 'I ~ ~ 5 15 F ~ Q, , C "' w u ~ V, ~ w - 0 le ! < 0 -i; ; "' ~ ! C DR A W N BY : RE V I E W E D : en z 0 -1- JE J MX D 0 N WO cn z Cf ) < ( en ~ Oe n 0: : : : w o en (_ ) <( -I (9 a. . 0 _J 0 w (9 9~ ~ ;w i f E S S l9i ¼ ~ -I i ' ,s , ~ c. 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I f Pc F- F ' K- K ' - ES i bo r i n g s (2 D f 0 - 2 0 2 3 ) 24 0 1 _ ro u n wa er me f s u r e w1 a f! 24 0 l Ac c e s ¥'. Gr o u n d w a l e r at tlme of dr i l l i n g Ro a d .. . Em e r g e n c y ! Or i g i n a l I _ _ Sh ear Pi n Cr ek Cr e e k El Ca r r l i n o Re a l ef ~ " , , - ! j • 20 0 - ~ == l = = = = = = - 1 20 0 Te n s i o n - .. . . _. Cr a c k ~ Ql 16 0 ~~ ~ i -l M E'' ~~::c ~EJ~ ~ r •I ~ 16 0 ... 12 0 ---< · -_ ·fs a ~ -· -- . . ~1- :- · . -_ = i · - + 12 0 -~- - , ·cc_ [c c ~ • , · , , c C 80 + - - - - - - - - - - - - + - - - - + - - - - - + - - - - - + - - - - -+ - - - - - + - - - - - - - - - + - - - - - - - - - + - - - - - - - - - + - - - - - - + 80 0 40 80 12 0 16 0 20 0 24 0 28 0 32 0 36 0 40 0 44 0 48 0 52 0 56 0 60 0 Re l a t i v e Di s t a n c e (f e e t ) GE O L O G I C CR O S S SE C T I O N S RE P A I R PH A S E 3 --a ; ~ -C: 0 :p ~ QJ w --QJ ~ -C: 0 :p ~ QJ w -oi ~ -C 0 "j . ~ Ql ... SC A L E : NT S 2 -... QJ ~ -C: 0 :p Ea s t We s t A Cr o s s Se c t i o n G- G ' Ph a s e 4 Le g e m i A' 28 0 28 0 I 42 4 0 T . I ri e s t e Dr . I I Tr es t e D[: _ Cr o s s Se c t i o n D- D ' I 11 I Up Je, Sh ~ a r I P! n Ge o c p n or i n g F (1 9 7 14) 1 CW Wo d bo r i n g s ( 19 8 6 ) Ni n y d & oo r e I bo r i n b s (2 0 0 9 ) Te r r a ~ a if i c bdri n g s (2 0 2 0 ) 1 2 4 0 1 1 ! 44 3 5 Tr i e s t e Dr ,. E; 2 I El l I El ~ 1~ I I I Pc cl; I s, w , I I Ma l o I Cr o ~ s Se , F- F ' l 20 0 ~- : : J . - I I I ~ , ,- C" ' : - ~ - - - TB - 4 ~~-~, a - - - - - · ' cl I I - " -- - --' ~ ~ f -" -· -_ - .-,_ _-~ - ~ ~ J } [ ! I : t ~~ ~ ~ - ~ o l '" = B- 1 io n I I . I ro s s Se c t i o n Ki K' t Em e r g e n c y Cr o s l : f Se c t i p n Ac c l ss r' ~ ES i bf ri gs (2 f 2□-2123) I Gr o u n d w te r me a s u r e 1 wi t h ~a t e I I I I Sh e 1r Pi~ e lmp o r ~ry l l l -+ - t i I "/ 111 Pa l ) i 'ap p r o x ~ + ~ Ro ~d Cr e e k ri g i n Cr e e ¥ Gr o u n d w er at ti m e oJ dr i l l i r i g El K: a m i t o Re i' 24 0 20 0 -... QJ ~ -C: 0 ·p ~ ~ 16 0 ;c t d : : . c •. • ' : ~:f ii , : •• ~-- .- : '- .<~ , . J , , B- 6 B•7 ==~= - 16 0 < • .:,{ :TP ~ 2 ,o , n ... • ~ < = - - 1- - - -"') jj -c c c - - - -- - - - "1"~,c , ~. . : : 2 ~~ , : ?i .. : {}'' " ·· , r '- ii '" ;: 0;c , t ,- , J r , r ... .. . ~ QJ w -... 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" . ~ - ·-- , - · ·- - · 1- · - - · ~ - ·- . - . I ~ - • • . I I , 12 0 40 80 12 0 16 0 20 0 2 4 0 2 8 0 Re l a t i v e Di s t a n c e (f e e t ) Ph a s e 4 32 0 36 0 40 0 44 0 4 8 0 Le g e.. . . r u i We s t C' 28 0 . I . - ~e o c o n t J O r m g t ~ , . , , ... , 128 0 1 1 1 .1. . Se c t i o n S e c t 1 0 ~ + Se c t i ~ n - -:. w Wo o d bo r i gs (1 9 8 6 ) •4r~ o G- G ' • D- 0 ' Cr o s s Cr o s s E- E - Ni n y o & Mo o r e oo r i n g s (2 0 0 9 ) Tn st e Dr . Tr i < st e Dr. . . . . . e: 1 42 2 5 Tr i e s t e Dr. I Cit y Se c t i o n Se c t i o n j - er r a P a c 1 f i c bo in g s (2 0 2 0 ) Pc I I I Pc I 1 Pc F- F ' K- K ' 24 0 m m w: 1 f' , r mr a , !' . l l r f ! w1 ; i "' 24 0 :. r 20 0 L ~'f :-~~~~e . ~ ~ ~ ~ _:f ;; ·-~:~~ -- Ac c e s s Ro a d me r g e n c y j Shea r Pi n ef new ! __ j _ _ I ef B 5 enslo o i Grou n d w a t e r at ti m e of dr i l l i n g Or i g i n a l Cr e e k Cr e e k l I~ El Ca n h i n o Re a l - - - -1 = = = = = = ! 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Gi "' ■- u z > , 0 U ) "" 2 - c : w o o t- - o. _ N U ) - >- C (/ ) 0 Q) ~ ~ (. ' . ) <: ( -~ z U ) Q: ' . LO w n W N Z L O c. . ' . ) - z w V C 0 co _ c - o. _ co N - en o 0 < ( 01 U I co n n Q) C '> L ~ m -c t - CT ) ~ PR O J E C T LO C A T I O N PO R T A PL A C E AN D TR I E S T E DR I V E , CA R L S B A D , CA L I F O R N I A ES i PR O J E C T NO . : 96 1 5 1 DA T E : 04 MA R 20 2 4 i; j 8 ~ fa ~ ~ ! 0 DR A W N BY : RE V I E W E D : en z 0 -1 - JE J MX D u ~ W o e n z en <C en c - r : > O e n a : w O e n U < C - I CJ a_ 0 _ J 0 w CJ 9 ~ ~ ~ ---~ ,ii - O f ES S1 9\ i i , 1 f f k ._ ~. l1 R s0 % ii ~x ; o/ ~ ~ ' ~ f No. 62 9 1 ~ g3 w "' * * ~ ' o' ~ " ~ a>_ . . l' R u c , ~ \\- '" " ' " " • '1 )' < I, " ' ; - ~ ~ ! 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F- F K- K - ES 1 bo r i n g s (2 0 2 0 - 2 0 2 3 ) 24 0 + -- - - -+ -- - - - l- - -- - - + - -- 1 ~- - + - - - -- 1 - 1- - -- - - -- - i - -- - - -- - j -- f'-- -+ -- - + - 1- - + -- + -- - - -+ -- - - - 1- -- -. - ,G ro un d w a t e r m e a s u r e w 1 t h d a t el 240 ge o g r i ~ re in/ o n , e m e n t /2 el ef n e w Ac c e s 1· Ro ad , me r g e n . c y I .Sh e a r Pt n 8-9 8-5 Te n s i o n • :: i - _ 1cr a ck i Gro u n dw a t e r at ti m e of dr i l l i n g cr e e k 200 I Or i g i n a l Cr e e k El Ca m i n o Re a l ~ 160 o: ·~. ,., , , r - ~ ~, - .ri ~ : I• _ss •o ' j :, - - - - tg 160 -·- - -- - -- ·- ... . . -_ - _ - , _ _ - _ - _ - - - - - 1 ~ -- - - - - Qal .. . .,, , - - 1s/slt S - ,Ji c s \ ~ ~ ; - ~ , 1 ; i nn } s } } ~ , , ~ ~ -~ _ , _ U, ~ } ~ ~ ___ , '" ° ' 120 12 0 W 00 o ~ w m = = = = 3W ~ = ~ ~ = = = Re l a t i v e Di s t a n c e (f e e t ) GE O L O G IC CR O S S SE C T I O N S RE P A IR PH A S E 5 -.. . a, ~ -C: 0 ·.c ; ~ a, -.. . . -.. . a, a, --C: 0 ·.c ; Il l > a, .. . . -Qi .! -C: 0 ·.i : ; "' > .. . .. . 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Ii : !! ~ i Q - r ~ i? l ~ ~ Q Ii lo en _J -;: 5 w 0 z -a. . 0: : <C w I en . 9~ ~ L~ i ' ~ ~ '1 - ~ . l l R s , ~ ~ li tj «¼ ~ ~ i' s cn g ; {f ] t No , 62 9 1 ;; , , ; ct : : w rr , * I\* ~ ~ ti " 't - 'v "" ( " ~ ., , , ?, ? ~ c t < - ~ ~ -? ; - ~ o ~ "" ' ~ ! i t -§ 2 PALISADES D R WE S T C L I F F CT S A LIS B U R Y D R EA S T P O I N T E AV L A P O R T A L A D A D R EAST P OINTEAV MILANODR PORTA P L HIG H RIDGEAV BRIGHTONRD T R I E S T E D R S IE R R A M O R E N A A V TAMARACKAV E L C A MIN O R E A L TAMARACKAV Copyright nearmap LOCATION MAP EXHIBIT 4TRIESTE DRIVE SLOPE REPAIR PROJECT $!Å **#5$ **#5$·|}þ78 VISTA ENCINITAS OCEANSIDE PACIFICOCEAN PALOMAR AIRP O R T RD T A M ARACK AV LACOS TA AV POIN S E T TI A L N MELROS E D R C A R L S B A D B L ELCAMINOR E AL CA RLS BA D V ILLAGEDR R A NCHOSANT AFERD A VIARAPY COLL E G EB L ALGA RD CA NNONRD Created By: Sara Jadhav 2/13/2024 J:\SaraJadhav_Customers\JasonEvans\LocationMap\TriesteSlopeRepair.mxd PROJECT LIMITS PROJECTNUMBER6107 $!Å Exhibit 4 March 12, 2024 Item #10 Page 16 of 16 Continuation of Proclamation of a Storm- Related Local Emergency for Repair of the Slope Between El Camino Real and Trieste Drive, Approval of Plans and Authorization of Additional Appropriations for this Emergency Tom Frank, Transportation Director/City Engineer Hossein Ajideh, Engineering Manager March 12, 2024 { City of Carlsbad 2 RECOMMENDED ACTION Adopt a resolution continuing the proclamation of a storm-related local emergency for repair of the slope between El Camino Real and Trieste Drive, approving the plans and authorizing additional appropriations in the amount of $955,000 for the Trieste Drive Slope Repair, Capital Improvement Program Project No. 6107 ITEM 10: LOCAL EMERGENCY SLOPE REPAIR ( City of Carlsbad 3 N N