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Home My WebLink AboutCDP 10-05; Carlsbad Boulevard Riprap Extention; Coastal Development Permit (CDP)^ CITY OF CARLSBAD LAND USE REVIEW APPLICATION P-1 )evelopment Services Planning Department 1635 Faraday Avenue (760) 602-4610 www.carlsbadca.gov APPLICATIONS APPLIED FOR: (CHECK BOXES) Develooment Permits (FOR DEPT USE ONLY) Leaislative Permits FOR DEPT. USE ONLY) r~l Administrative Permit \ 1 General Plan Amendment yC\ Coastal Development Permit (*) OMinor 1 1 Local Coastal Program Amendment (*) • Conditional Use Permit (*) O Minor O Extension r~l Master Plan [U Amendment 1 1 Environmental Impact Assessment 1 1 Specific Plan CH Amendment 1 1 Habitat Management Permit O Minor 1 1 Zone Change (*) 1 1 Hillside Development Permit (*) 1 1 Zone Code Amendment 1 1 Planned Development Permit O Residential O Non-Residential 1 1 Planned Industrial Permit List other aoolications not specified 1 1 Planning Commission Determination • 1 1 Site Development Plan • (S Special Use Permit Sop \o-o\ • 1 1 Tentative Tract Map (*) = eligible for 25% discount 1 1 Variance d] Administrative NOTE: A PROPOSED PROJECT REQUIRING MULTIPLE APPLICATIONS BE FILED, MUST BE SUBMITTED PRIOR TO 3:30 P.M. A PROPOSED PROJECT REQUIRING ONLY ONE APPLICATION BE FILED, MUST BE SUBMITTED PRIOR TO 4:00 P.M. ASSESSOR PARCEL NO(S).: PROJECT NAME: CAZZSS^D ^Ui^P. R/P Mi^ £X7£A^f/^^ BRIEF DESCRIPTION OF PROJECT: CARL*Ti>AT? rSzv>Z> /'go/»i fr/t-frot^ to-7-f-Ary.oo To rr/^TV»^i //g i«a>>. BRIEF LEGAL DESCRIPTION: LOCATION OF PROJECT: Be7k/££t^ ^^//V/»> e:R££»< g<g/gfc^^ r^S fTpfrsi f^*^^f^ ^./xrr ^7-*^-r,^^ STREET ADDRESS ON THE: SIDE OF (NORTH, SOUTH, EAST, WEST) BETWEEN AND (NAME OF STREET) (NAME OF STREET) (NAME OF STREET) P-1 Page 1 of 5 Revised 01/10 OWNER NAME (Print): MAILING ADDRESS: CITY.STATE.ZIP: Cjl-Hl^BAP. C^A TELEPHONE: EMAIL ADDRESS: APPLICANT NAME (Print): J^^^g^^^jg^e {'c^y MAILING ADDRESS: /^-^^ J^^MYAy£. CITY.STATE.ZIP: CM^Rt.saAX> . C/^ TELEPHONE: - Se>-2.'2.-7^6 EMAIL ADDRESS: J^^t>. /^<a»<v^ ^/"^^^^ >> I CERTIFY THAT I AM THE LEGAL OWNER AND THAT ALL THE ABOVE INFORMATION IS TRUE AND CORRECT TO THE BEST OF MY KNOWLEDGE. I CERTIFY THAT I AM THE LEGAL REPRESENTATIVE OF THE OWNER AND THAT ALL THE ABOVE INFORMATION IS TRUE AND CORRECT TO THE BEST OF MY KNOWLEDGE. APPLICANTS REPRESENTATIVE (Print): MAILING ADDRESS: CITY.STATE.ZIP: TELEPHONE: EMAIL ADDRESS: I CERTIFY THAT I AM THE LEGAL REPRESENTATIVE OF THE APPLICANT AND THAT ALL THE ABOVE INFORMATION IS TRUE AND CORRECT TO THE BEST OF MY KNOWLEDGE. SIGNATURE DATE IN THE PROCESS OF REVIEWING THIS APPLICATION IT MAY BE NECESSARY FOR MEMBERS OF CITY STAFF. PLANNING COMMISSIONERS OR CITY COUNCIL MEMBERS TO INSPECT AND ENTER THE PROPERTY THAT IS THE SUBJECT OF THIS APPLICATION. I/WE CONSENT TO ENTRY FOR THIS PURPOSE. NOTICE OF RESTRICTION: PROPERTY OWNER ACKNOWLEDGES AND CONSENTS TO A NOTICE OF RESTRICTION BEING RECORDED ON THE TITLE TO HIS PROPERTY IF CONDITIONED FOR THE APPLICANT. NOTICE OF RESTRICTIONS RUN WITH THE LAND AND BIND ANY SUCCESSORS IN INTEREST. PROPERTY OWNER SIGNATURE FOR CITY USE ONLY RECEIVED MAR 0 Q 2010 CITY OF CARLSBAD PLANNING DEPT DATE STAMP APPLICATION RECEIVED RECEIVED BY: p-1 Page 2 of 5 Revised 01/10 A HAZARDOUS WASTE Development Services ^ AND SUBSTANCES Planning Department r AP I" CRAn STATEMENT T76oT6ot46io LAKLbbAU P-1(C) www carlsbadca gov Consultation of Lists of Sites Related to Hazardous Wastes (Certification of Compliance with Government Code Section 65962.5) Pursuant to State of California Government Code Section 65962.5,1 have consulted the Hazardous Waste and Substances Sites List compiled by the California Environmental Protection Agency and hereby certify that (check one): The development project and any alternatives proposed in this application are not contained on the lists compiled pursuant to Section 65962.5 ofthe State Government Code. Q The development project and any alternatives proposed in this application are contained on the lists compiled pursuant to Section 65962.5 of the State Government Code. APPLICANT PROPERTY OWNER Name: JAC.^^* '^t7s:P£:R. (dfYvfrcyfRu^A'p) Name: (CITY oc.^RL.->h^t> Address: ^6"^^ Pff^OAY /t^ST Address: ^"^^ /^>y/V»g><<y^»ig- Phone Number: '7/^-<r fil.' 2.7^ Phone Number: Address of Site: ^^f^ ^(TTH SA/C^A/A^ rri!i.E£K. Bf^/f>/^£' Local Agency (City and Countv): <^/7~v <yc•4»^^•?»f ^ Assessor's book, page, and parcel number:_ Specify list(s): A^4^ Regulatory Identification Number: NA Date of List: /^A Property Owner Signature/Date The Hazardous Waste and Substances Sites List (Cortese List) is used by the State, local agencies and developers to comply with the California Environmental Quality Act requirements in providing information about the location of hazardous materials release sites. P-1(C) Page lof 2 Revised 04/09 ^ HAZARDOUS WASTE Development Services CITY OF // AND SUBSTANCES Planning Department CARLSBAd^^J^ STATEMENT '''"^Z^Z^l P-1 (C) www.carlsbadca.gov Per the California Environmental Protection Agency's website, "While Government Code Section 65962.5 [referred to as the Cortese List] makes reference to the preparation of a "list," many changes have occurred related to web-based information access since [the amended statute's effective date in] 1992 and this information is now largely available on the Internet sites of the responsible organizations. Those requesting a copy of the Cortese "list" are now referred directly to the appropriate information resources contained on the Internet web sites of the boards or departments that are referenced in the statute." Below is a list of agencies that maintain information regarding hazardous waste and substances sites. Department of Toxic Substances Control www.calepa.ca.qov/sitecleanuD/CorteseList/default.htm c^ <C^£i^f<£:i> T/V/* ^/TS" www.calepa.ca.qov/database/calsites www.envirostor.dtsc.ca.qov/public EnviroStor Help Desk (916) 323-3400 State Water Resources Control Board http.7/qeotracker.waterboards.ca.qov/ County of San Diego Department of Environmental Health Services www, co.san-dieqo. ca. us/deh Hazardous Materials Division www.sdcountv.ca.qov/deh/hazmat/hazmat permits.html Mailing Address: County of San Diego Department of Environmental Health P.O. 60x129261 San Diego, CA 92112-9261 Call Duty Specialist for technical questions at (619) 338-2231, fax (619) 338-2377 Environmental Protection Agency National Priorities Sites ("Superfund" or "CERCLIS") www.epa.aov/superfund/sites/cursites (800) 424-9346 or (702) 284-8214 National Priorities List Sites in the United States www.epa.aov/superfund/sites/npl/npl.htm P-1 (C) Page 2 of 2 Revised 03/09 CITY OF CARLSBAD PROJECT DESCRIPTION P-1(B) Development Services Planning Department 1635 Faraday Avenue (760) 602-4610 www.carlsbadca.gov PROJECTNAME: Af2.L$3'/9' bt^yp /Z,p P^p j-yrir^f,^^ APPLICANTNAME: JAcnB> ^g^-pgrR. (^^yTV t^/^ t^/f-RL.9^A>) Please describe fully the proposed project by application type. Include any details necessary to adequately explain the scope and/or operation of the proposed project. You may also include any background information and supporting statements regarding the reasons for, or appropriateness of, the application. Use an addendum sheet if necessary. Description/Explanation: Vl.C/^SS: f££r /^TrAOiSl> i,£Tr£JK At>Vf^a^£:t> To A? A/ A^£iu ^oR. I>£:^e/?,(>r^^^. P-1(B) Page 1 of 1 Revised 04/09 (^^^> CITY OF ^CARLSBAD Transportation Department www.carisbadca.gov SUBJECT: CARLSBAD BLVD ElVIERGENCY RIPRAP REPAIR CDP 10-05 - REGULAR CDP APPLICATION PROJECT BACKGROUND On March 17, 2010, the Planning Department issued a Notice of Decision regarding the issuance of an Emergency Coastal Development Permit (CDP) for three separate projects. The projects include the California Department of Parks & Recreation's (State) 6" Sewer Force Main and Sewer Lift Station Relocation, Encina Wastewater Authority's Sewer Outfall Pipe Line Protection, and Carlsbad Blvd Emergency Riprap Extension. The decision was to issue an Emergency CDP, which the City Council subsequently approved on March 23, 2010. As a follow up to the City's Carlsbad Blvd Riprap Extension project, being transmitted with this background is the regular CDP, which is required to be submitted within 30 days of issuance of the emergency CDP. City staff and Nolte Associates have prepared a riprap design to prevent further erosion to Carlsbad Blvd. The riprap design is the same design used for the Encina Creek Bridge Replacement project, CIP 3919 (CDP 09-08, SUP 09-03, and HMP 09-06). The Encina Wastewater Authority (EWA) has a 30 feet wide easement perpendicular to Carlsbad Blvd. The design does not show any riprap being installed within EWA's easement. When the City and EWA decide on a modified design that protects both the outfall and Carlsbad Blvd, it will be issued as a change order to the contract with the onsite Contractor. The riprap repair will begin at station 107+30 (the southern end ofthe riprap repair under the Encinas Creek Bridge replacement project) and extend south to station 110+08, which is just north ofthe State's existing sewer lift station. As part of the City's riprap extension project, a temporary sewer forcemain bypass will be installed aboveground, which will enable the contractor to remove the State's existing sewer forcemain that conflicts with the riprap improvements. The State has agreed to remove the temporary sewer forcemain bypass that will be located on the east side of southbound Carlsbad Blvd after they have installed their new sewer lift station and forcemain. Staff is currently working with the California Coastal Commission and Army Corp of Engineers (ACOE) regarding jurisdictional issues. In an effort to not delay the project by procuring an Emergency ACOE permit, the Contractor has been instructed to not perform work within ACOE jurisdiction. ACOE has jurisdiction under Section 10 of the Clean Water Act if work, such as installing sheet piles, constructing a berm, and excavating, is performed west of the Mean High Tide Line (4.60' Mean Lower Low Water). ACOE also has jurisdiction under Section 404 of the Clean Water Act if earthwork is performed west of the High Tide Line (7.65' Mean Lower Low Water). The Contractor will continue the use of the sheet piles east ofthe High Tide Line as used on the Las Encinas Creek Bridge Replacement project, to prevent the need for an Emergency ACOE permit. Transportation Department t*f#* 1635 Faraday Ave. I Carlsbad, CA 92008 I 760-602-2730 I 760-602-8562 fax UNITED STATES PQHAU SERVICE 1 First-Class Mail Postage & Fees Paid USPS Permit No. G-10 ()rri6©P<CAPft^SBA£^t your name, address, and ZIP+4 in this box • MAR 2 2 2010 Community & EconomlLA^iii® [•^f^mMiMf )evetopment Depftrtmf§|g mi.A,F¥,Y/5A^iiiyi Pb COP ll.l.<»l.lll...lj...l..l.i,l..l.l..j.i,.i.i...l>j.J.l..j.i./ SENDER: COIVIPLETE THIS SECTION COMPLETE THIS SECTION OW DELIVERY • Complete items 1, 2,1^^. Also complete item 4 if Restricted Delivery is desired. • Print your name and address on the reverse so that we can return the card to you. • Attach this card to the back of the mailpiece, or on the front if space permits. A Signature • Complete items 1, 2,1^^. Also complete item 4 if Restricted Delivery is desired. • Print your name and address on the reverse so that we can return the card to you. • Attach this card to the back of the mailpiece, or on the front if space permits. B. Received by { Printed Name) C. Date of Delivery 1. Article Addressed to: D. Is delivery address difterent from Item 17 D res If YES, enter delivery address below: Cl No 3. Service Type • Certified Mall • Express Mall • Registered • Retum Receipt fbr Merchandise • Insured Mall • C.O.D. 4. Restricted Delivery? (Extra Feo) • Yes SrrLrv/ce,a.e, 'J'DD^ DDDH 1^73 Sb70 PS Form 3811, February 2004 Domestic Retum Receipt 10259M2-M-1540 UNITED STATES JAL SERVICE First-Class Mail Postage & Fees Paid USPS Permit No. G-10 • Sender: Please print your name, address, and ZIP+4 in this box • Mli:BAD-, CA ^'mm^^^^^ MAR 2 2 ?010 Communrty & Ecomlmic Devetopment Depart nent it) COP 16-05 SENDER: COIVIPLETE THIS SECTION COIVIPLETE THIS SECTION ON DELIVERY Complete Items 1, 2, aVS. Also complete item 4 if Restricted Delivery Is desired. Print your name and address on the reverse so that we can return the card to you. Attach this card to the back of the mailpiece, or on the front if space permits. 1. Article Addressed to: fttfN:"DesoRLAH lee, Disr. /Vlefi, ^ 7575 ni\£Tf;LoPoi-i7A/vjr)i^y6TE.lo3 "H^-Ftecllved by ( PriptedyHMe) • Agent D Addressee D. Is delivery address different from ltem'1 ? Q Yes If YES, enter delivery address below: Cl No 3. Service type • Certified Mall • Registered • Insured Mall • Express Mall • Retum Receipt for Merchandise • C.O.D. 4. Restricted Delivery? (Extra Fee) • Yes 2. Article Number (Transfer from service label) 7DDT miD QDDE 1=173 SLb3 . CITY OF 9 V CARLSBAD FILE COPY Planning Department EMERGENCY COASTAL DEVELOPMENT PERMIT NOTICE OF DECISION www.carlsbadca.gov March 17, 2010 Jacob Moeder Associate Engineer City of Carlsbad Transportation Division 1635 Faraday Avenue Carlsbad, CA. 92008 Brian Gaudet, PMCI California State Parks San Diego Coast District/North Sector 2680 Carlsbad Boulevard Carlsbad, CA 92008 Jeff Leads Encina Wastewater Authority 6200 Avenida Encinas Carlsbad, CA 92011 SUBJECT: CDP 10-05 -CARLSBAD BOULEVARD ROADWAY & SEWER LINE REPAIRS - EMERGENCY PERMIT The Planning Director has completed a review of the application for an Emergency Coastal Development Permit to install riprap to stabilize and protect the currently eroding southbound Carlsbad Boulevard roadway embankment, relocate a section of the California Department of Parks & Recreation's 6" sewer force main and sewer lift station, and protect the Encina Wastewater Authority's sewer outfall pipeline located under the area in which riprap is planned. Emergency repairs, which would occur in an area south of the Encinas Creek bridge, are necessary as the area along Carlsbad Boulevard was undermined and exposed by severe storms which produced substantial rainfall, flooding and destructive tidal-surge wave action in this area. These events occurred on or about the same time as higher than normal tides produced by an astronomical high tide event. On February 2, 2010, during a routine inspection, City of Carlsbad staff determined that the roadway along Carlsbad Boulevard, south of the Encinas Creek Bridge had been compromised and the integrity of the roadway was at risk. Additionally, it was discovered that portions of the California Department of Parks & Recreation's 6" sewer force were exposed by the recent storm events, exacerbating the unsafe conditions of this area. Staff implemented protocols to ensure the safety of the motoring public, bicyclists, and pedestrians, and a local emergency was declared on February 5, 2010; this declaration has been subsequently extended by the City of Carlsbad City Council. The project description for the emergency permit follows. California Department of Parks & Recreation's 6" Sewer Force Main and Sewer Lift Station The California Department of Parks & Recreation's will relocate their sewer force main and sewer lift station from this area as part of this emergency CDP. If the California Department of Parks & Recreation is unable to relocate their sewer force main in a timely manner, the City will install a temporary sewer bypass line and remove this section of pipeline in order to install the 1635 Faraday Avenue, Carlsbad, CA 92008-7314 T (760) 602-4600 F (760) 602-8559 ® CDP 10-05 -CARLSBAD BOULEVARD RIPRAP EXTENSION March 17,2010 Page 2 riprap in this area. State Parks Department will relocate the remaining sewer force main and sewer lift station afterward. This will be determined in the field as work proceeds on both projects. The State has proposed to tie into the City's sewer force main to the south and east of the current location. Relocating this section of sewer force main will necessitate the removal of the sewer lift station that is located just to the south of the exposed line. The lift station will be demolished and a pre-fabricated lift station will be installed at the north end of the State campgrounds to the south of the project site. Encina Wastewater Authority's Sewer Outfall Pipe Line The Encina Wastewater Authority's (EWA) outfall sewer line is also located in this area. Though the outfall sewer line was not exposed by the storms, the outfall line is underneath where a section of riprap will be installed. The City attempted to locate the depth of the Encina outfall by potholing in the area, but the potholing did not uncover the outfall pipe. Excavation is required to expose the outfall pipe in order to make sure the installation of the riprap does not damage the outfall pipe from the weight of the riprap. Once the Encina outfall line is exposed, and its depth verified, then a modified riprap design will be prepared by the City and a design to protect the Encina outfall will be prepared by EWA. The location and protection of the outfall pipe line is part of this emergency permit and all work on this line will occur landward (east) of the Mean High Tide Line (MHTL). City of Carlsbad's Riprap Extension The northern end of the proposed riprap would start approximately 149 feet south of the Encinas Creek Bridge, which is where the southern end of the riprap will be installed under the Encinas Creek Bridge replacement project that started construction in January of this year (CDP 09-08, SUP 09-03, and HMP 09-06). Placement of riprap will extend southward an additional 280 feet, terminating just north of the California Department of Parks & Recreation's existing sewer lift station. There is some existing riprap in the area, which would be reconfigured and supplemented with an additional 1,434 cubic yards of 4-ton riprap, 1,174 cubic yards of 2-ton riprap, and 673 cubic yards of %-ton riprap on the west side of the roadway. The riprap design is the same as the design used for the Encina Creek Bridge replacement project. The design will need to be modified in the area 25 feet on both sides above the Encina VVastewater Treatment Plant outfall pipe to help protect the existing 48-inch diameter reinforced concrete pipe. The closed southbound lanes of Carlsbad Boulevard, just south of the Encinas Creek Bridge Replacement project site, will be used for all construction staging, including parking for contractors' equipment and vehicles. Excavation and backfill equipment will be stationed on the roadway above the bluff and not on the beach. Sheet piles will be required on the beach, just west of the bluff and east of the MHTL to prevent wave action in the area where the riprap will be installed. The sheet piles will be driven into the ground by either a drop hammer, or a vibratory hammer using a crane with the appropriate attachments. The crane is currently in the area completing work on the Encinas Bridge Repair project and will not have to be brought to this area. The contractor is not allowed to have any equipment west of the westerly sheet piles, nor store any material or equipment on the beach. Beach activity will be limited to installation of sheet piling, replacement and supplement of riprap, excavation of the outfall sewer pipe, installation of a protective cover over the outfall sewer pipe, and the removal of the sewer force main. CDP 10-05 -CARLSBAD ^ULEVARD RIPRAP EXTENSION March 17,2010 Paqe 3 The Planning Director APPROVES this request for an Emergency Coastal Development Permit based upon the following: Findings: 1. An emergency exists that requires action more quickly than permitted by the procedures for coastal development permits or for regular permits and the work can and will be completed by May 28, 2010 unless othenA/ise specified by the terms ofthe permit; 2. At its March 9, 2010 meeting, the City Council of the City of Carlsbad proclaimed the continuation of a declaration of a local emergency to repair/replace roadfill at Carlsbad Boulevard. The riprap extension permitted herein is in response to this declaration. 3. Public notice on the proposed emergency action has not occurred because time did not allow; and 4. The work proposed will be consistent with the requirements of the certified Local Coastal Program (LCP). The project site is located within the Mello II Segment of the Local Coastal Program and within the City's permit jurisdiction as the project has been designed to remain landward (easterly) of the mean high tide line, and thus outside of the California Coastal Commission's retained permit jurisdiction, however, within their appeal jurisdiction. The site is also located within and subject to the Coastal Resource Protection Overlay Zone (Chapter 21.203), and the Coastal Shoreline Development Overlay Zone (Chapter 21.204) ofthe Carlsbad Municipal Code. The proposed project will comply with Mello II Policy 4-6 - "Sediment Control" Practices by adhering to the City's Master Drainage Plan, Grading Ordinance, Storm Water Ordinance, Standard Urban Storm Water Mitigation Plan (SUSMP) and Jurisdictional Urban Runoff Management Program (JURMP) to avoid increased urban run-off, pollutants and soil erosion. The zone is intended to protect sensitive resources. It requires preservation of steep slopes with vegetation (dual-criteria slopes) with some exceptions. No development is proposed in areas of steep coastal bluffs. The proposed project is consistent with the LCP in that the project will protect and stabilize the existing Carlsbad Boulevard southbound roadway and bike lane thereby ensuring access to the shoreline. In addition, the project will comply with Mello II Policy 7-13 - Visual Access by removing the existing above ground sewer lift station structure which will remove an obstruction to public ocean views. In addition, the relocated sewer pipelines will be installed underground, rip rap will be placed at or below existing road level, and the new lift station will be located in a vegetated area without direct ocean view. Therefore, the project will not obstruct views of the coastline as seen from public lands or the public right-of-way, nor otherwise damage the visual beauty of the coastal zone. 5 This emergency project is statutorily exempt from the California Environmental Quality Act pursuantto CEQA Guidelines Section 15269. Conditions: 1. The Planning Director does hereby APPROVE the Emergency Coastal Development Permit, for the project entitled "Carlsbad Boulevard Rip Rap Extension" (Exhibits "A" - ^U CDP 10-05 -CARLSBAD BT)ULEVARD RIPRAP EXTENSION March 17, 2010 Page 4 "E"), dated March 17, 2010, on file in the Planning Department and incorporated by this reference, subject to the conditions herein set forth. 2. The Emergency Coastal Development Permit is granted subject to completion of the emergency repair work by May 28, 2010. 3. The Developers (City of Carlsbad, California Department of Parks & Recreation, and Encina Wastewater Authority) shall submit a formal application for a regular Coastal Development Permit and Floodplain Special Use Permit (Coastal High Hazard area) to the City within 30 days of this letter. 4. The location and protection of the outfall pipe line is part of this emergency permit and all work on this line will occur landward (east) of the Mean High Tide Line (MHTL). 5. The riprap design shall be the same as the design used for the Encinas Creek Bridge replacement project. 6. The contractor is not allowed to have any equipment west of the westerly sheet piles, nor store any material or equipment on the beach. Beach activity will be limited to installation of sheet piling, replacement and supplement of riprap, excavation of the outfall sewer pipe, installation of a protective cover over the outfall sewer pipe, and the removal of the sewer force main. CITY OF CARLSBAD DON NEU Planning Director DN:PD:sm c: California Coastal Commission, Attn: Deborah Lee, District Manager, 7575 Metropolitan Drive, Suite 103, San Diego, CA 92108 State of California Department of Parks and Recreation, Attn: Brian Ketterer, Sector Superintendent, San Diego Coast District/North Sector, 2680 Cartsbad Boulevard, Cartsbad, CA 92008 Skip Hammann, Transportation Director Eva Plajzer, Senior Civil Engineer Dave de Cordova, Principal Planner File Copy Data Entry u.b. Hostal bervipe. eis iiiii „ RECEIPT ranee Coverage Provided) I v. :i3( Cfirtiisc -"3Ei Retum Fieciip fae (Ei^ torsement R( ciui-^od) fieslricted Deilvor^' Fse (Endorsement Roqiiired) Total Postage & FeeE ItBilclilt- website at vifww.usps.com,, n ^ li S E Postmark Here Postmark Here Postmark Here Postmark Here Postmark Here S(ree(, /4p(. Wo.; or PO Box No. City, State, ZIP+4 M-S- mm Mm liiiii L_. J.:. L: J Ci'iti.i£i:! i-a€ Fioturn :-\o.t t;ipi F9€ (Endorsemenl Inoqinrcd; Fie striated Delivory Fee (Enrlor;.emGnl R;;c|unod; Total Post ige S> l aas^ SII RECEIPT irance Coverage Provided) ffl'IHifH« website at www.usps.com,. Postmark Here Postmark Here Postmark Here Postmark Here 5 Postmark Here bent lo ] Slreel, Apt. No.; or PO BOX t^o-j^y^ foe^^e Pc>imb> jQew^i 't^ \.o.'3' City, siaig, PS Form 3800, August 2006 SGG RoversG tor Instructions /)lfliteO 3li7//i^ CITY OF •'LE copy V CARLSBAD Planning Departnnent www.carlsbadca.gov March 17, 2010 California Coastal Commission Attn: Peter Douglas, Executive Director 45 Fremont Street, Suite 2000 San Francisco, CA 94105-2219 SUBJECT: ISSUANCE OF EMERGENCY COASTAL DEVELOPMENT PERMIT FOR STORM DAMAGE TO CARLSBAD BOULEVARD Pursuant to Municipal Code Section 21.201.190E, this letter is to inform the Coastal Commission, through its Executive Director, about the nature of the emergency resulting from recent storm damage, the anticipated repair work involved, and the issuance of an emergency coastal development permit (attached). No action is required by the Coastal Commission. On February 2, 2010, during a routine inspection, City of Carlsbad staff determined that the roadway along Carlsbad Boulevard, south of the Encinas Creek Bridge had been compromised and the integrity of the roadway was at risk due to previous tidal action and severe storms which started around January 17, 2010. Additionally, city staff discovered that portions of the State Parks Department 6" sewer force main were exposed by the storm events, exacerbating the unsafe conditions of this area (see attached photos). City staff implemented protocols to ensure the safety of the motoring public, bicyclists, and pedestrians, and the City Manager declared a local emergency on February 5, 2010; the City Council has ratified and subsequently extended this declaration (see attached Resolution No. 2010-043). On March 17, 2010 the Planning Director issued an Emergency Coastal Development Permit (CDP 10-05) to install riprap to stabilize and protect the currently eroding southbound Carlsbad Boulevard roadway embankment, relocate a section of the California Department of Parks & Recreation's 6" sewer force main and sewer lift station, and protect the Encina Wastewater Authority's sewer outfall pipeline located under the area in which riprap is planned. The emergency permit will cover work to be completed by the City of Carisbad, California Department of Parks & Recreation, and Encina Wastewater Authority (as needed to protect their sewer outfall pipe). All work will occur landward (east) of the Mean High Tide Line (MHTL) and thus within the City of Carlsbad's Coastal Development Permit jurisdiction. Sincerely, DON NEU Planning Director DN:^:sm Attachments c: - California Coastal Commission, Attn: Deborah Lee, District Manager, 7575 Metropolitan Drive, Suite 103, San Diego, CA 92108 Dave de Cordova, Principal Planner Scott Donnell, Senior Planner Skip Hammann, Transportation Director Eva Plazjer, Senior Civil Engineer Jacob Moeder, Associate Engineer 1535 Faraday Avenue, Carlsbad, CA 92008-7314 7(750) 502-4500 F (750) 602-8559 © NOTICE OF EXEIUPTION FILE COPY To: SD County Clerk Attn: Linda Kesina Mail Stop A-33 1600 Pacific Highway SanDiego, CA 92101 From: fF 0 (1 © David Butler, Recorder/County Clerk MAR 22 2010 BY L. Kesian CITY OF CARLSBAD Planning Department 1635 Faraday Avenue Carlsbad, CA 92008 DEPUTY Subject: Filing of this Notice of Exemption is in compliance with Section 21152b of the Public Resources Code (California Environmental Quality Act). Project Number and Title: CDP 10-05 - Carlsbad Boulevard Roadway & Sewer Line Repairs Project Location - Specific: Approximately 150 feet south of the Encinas Creek Bridge along southbound Carlsbad Boulevard approximately 0.6 mile south of Palomar Airport Road and 1-mile north of Poinsettia Lane. Project Location - City: Carlsbad Project Location - County: San Diego Description of Project: The City of Carlsbad proposes to install riprap to stabilize and protect the eroding southbound Carlsbad Boulevard roadway embankment, relocate a section of sewer farce main that was undermined and exposed by severe storms, and expose a sewer outfall pipe in order to install a concrete protective cover over the section of outfall pipe located under the proposed riprap. Name of Public Agency Approving Project: Citv of Carlsbad Name of Person or Agency Carrying Out Project: City of Carlsbad Name of Applicant: Jacob Moeder CITY OF CARLSBAD APR 2 9 2010 Applicant's Address: 1635 Faradav Avenue. Carlsbad. CA 92008 Applicant's Telephone Number: 760-602-2736 Community & Economic Development Department Exempt Status: {Check One) • Ministerial (Section 21080(b)(1); 15268); • Declared Emergency (Section 21080(b)(3); 15269(a)); IE! Emergency Project (Section 21080(b)(4); 15269 (b)(c)); • Categorical Exemption - State type and section number: CH Statutory Exemptions - State code number: • General rule (Section 15061(b)(3)) Reasons why project is exempt: The proiect is being completed as an emergency. Lead Agency Contact Person: Pam Drew Telephone: (760) 602-4644 LED m I HE OFFICE OF FHE COUNTY CLERK -gp Dlepo (iniinty MAR 7 "f im 3-/^-/0 DON NEU, Planning Director -ostea Iil!L.Remove(l_ W ?P 1!) Date received fbr filing at OPR: '^^^'^"'^ ^^enc^ '"IZK^^TJ^- ^Ditv L. Kesian Date Revised September 2009 f HtS'MULTI-TG>NE"iOlR'EA^OF^THE DOCUMENT CHANGE£| tOR GFiADClAL'LY "'"AcHecK^a"'^- i'J^OATi VENDOR NO. I'ivL'LY^'ANiii E^iEN'LY<'FROMt.DARK foT^HfwiTHjfDARKERsAljlEAStBOTH TOP AND; BCirrOM' 201445 03/18/10 V92121 t635 Faraday Avenu* Carfsbaid, CA 92008-7314 (760) 602-2430 ,. Notivalld. after six monttw from diate ; WELLS FARGO BANK 11-24 1210(8) PAY FIFTY Dollars and ZERO Cents TO THE OROER OF TOTAL AMOUNT $ ********50,00 COUNTY OF SD ASSESSOR/REC/CLER ATTN: ACCOUNTING DIVISION 1600 PACIFIC HWY., ROOM 2S0 SAN DIEGO, CA 92112 t»SSiiSfRM¥SEliOCUIflENT.'HAS\A':REFCECTIVE%WAT State of California—The Resources Agency DEPARTMENT OF FISH AND GAME 2010 ENVIRONMENTAL FILING FEE CASH RECEIPT SEE INSTRUCTIONS ON REVERSE. TYPE OR PRINT CLEARLY RECEIPT* SD2010 0254 STATE CLEARING HOUSE # (ifapplicable) LEADAGENCY CITY OF CARLSBAD DATE 03-22-2010 COUNTY/STATE AGENCY OF FILING SAN DIEGO DOCUMENTNUMBER *20100254* PROJECT TIUE CDP 10-05 - CARLSBAD BOULEVARD ROADWAY & SEWER LINE REPAIRS PROJECTAPPLICANT NAME CITY OF CARLSBAD PHONENUMBER 760-602-2736 PROJECT APPLICANT ADDRESS 1635 FARADAY AVENUE CITY CARLSBAD STATE CA ZIPCODE 92008 PROJECT APPLICANT (Check appropriate box): Q Local Public Agency Q School District Q Other Special District • State Agency El Private Entity CHECK APPLICABLE FEES: Q Environmental Impact Report • Negative Declaration Q Application Fee Water Diversion (State Water Resources Control Board Only) Q Projects Subject to Certified Regulatory Programs Q County Administrative Fee • Project that is exempt from fees [3 Notice of Exemption Q DFG No Effect Determination (Form Attached) • Other PAYMENT METHOD: • Cash • Credit • Check • Other 201445 $2,792.25 $ $2,010.25 $ $850.00 $ $949.50 $ $50.00 $ $50.00 TOTAL RECEIVED $50.00 SIGNATURE X L. Kesian TPFLE Deputy CITY OF CARLSBAD MAR 2 6 ?01fl Community & Economic Development Department Ilil Illlllllll ORIGINAL - PROJECT APPLICANT COPY-DFG/ASB COPY-LEAD AGENCY COPY - COUNTY CLERK FG 753.5a (Rev. 7/08) David L. Butler COUNTY OF SAN DIEGO ASSESSOR/RECORDER/COUNTY CLERK ASSESSOR'S OFFICE 1600 Pacific Highway, Suite 103 San Diego, CA 92101-2480 Tel. (619) 236-3771 * Fax (619) 557-4056 www.sdarcc.com RECORDER/COUNTY CLERK'S OFFICE 1600 Pacific Highway, Suite 260 P.O. Box 121750 * San Diego, CA 92112-1750 Tel. (619)237-0502 * Fax (619)557-4155 Transaction #: 222206320100322 Deputy: LKESIAN Location: COUNTY ADMINISTRATION BUILDING 22-Mar-2010 12:47 FEES: 50.00 Qty ofl Fee Notice of Exemption for Refits 254 50.00 TOTAL DUE PAYMENTS: 50.00 Check 50.00 TENDERED SERVICES AVAILABLE AT OFFICE LOCATIONS Tax Bill Address Changes Records and Certified Copies: Birth/ Marriage/ Death/ Real Estate Fictitious Business Names (DBAs) Marriage Licenses and Ceremonies Assessor Parcel Maps Property Ownership Property Records Property Values Document Recordings SERVICES AVAILABLE ON-LINE AT www.sdarcc.com Forms and Applications Frequently Asked Questions (FAQs) Grantor/ Grantee Index Fictitious Business Names Index (DBAs) Property Sales On-Line Purchases Assessor Parcel Maps Property Characteristics Recorded Documents EMERGENCY COASTAL DEVELOPMENT PERMIT NOTICE OF DECISION March 17, 2010 Jacob Moeder Associate Engineer City of Carlsbad Transportation Division 1635 Faraday Avenue Carlsbad, CA. 92008 Jeff Leads Encina Wastewater Authority 6200 Avenida Encinas Carlsbad, CA 92011 Brian Gaudet, PMCI California State Parks San Diego Coast District/North Sector 2680 Carlsbad Boulevard Carlsbad, CA 92008 SUBJECT: CDP 10-05 -CARLSBAD BOULEVARD ROADWAY & SEWER LINE REPAIRS - EMERGENCY PERMIT The Planning Director has completed a review of the application for an Emergency Coastal Development Permit to install riprap to stabilize and protect the currently eroding southbound Carlsbad Boulevard roadway embankment, relocate a section of the California Department of Parks & Recreation's 6" sewer force main and sewer lift station, and protect the Encina Wastewater Authority's sewer outfall pipeline located under the area in which riprap is planned. Emergency repairs, which would occur in an area south of the Encinas Creek bridge, are necessary as the area along Carlsbad Boulevard was undermined and exposed by severe storms which produced substantial rainfall, flooding and destructive tidal-surge wave action in this area. These events occurred on or about the same time as higher than normal tides produced by an astronomical high tide event. On February 2, 2010, during a routine inspection. City of Carlsbad staff determined that the roadway along Carlsbad Boulevard, south of the Encinas Creek Bridge had been compromised and the integrity of the roadway was at risk. Additionally, it was discovered that portions of the California Department of Parks & Recreation's 6" sewer force were exposed by the recent storm events, exacerbating the unsafe conditions of this area. Staff implemented protocols to ensure the safety of the motoring public, bicyclists, and pedestrians, and a local emergency was declared on February 5, 2010; this declaration has been subsequently extended by the City of Carlsbad City Council. The project description for the emergency permit follows. California Department of Parks & Recreation's 6" Sewer Force Main and Sewer Lift Station The California Department of Parks & Recreation's will relocate their sewer force main and sewer lift station from this area as part of this emergency CDP. If the California Department of Parks & Recreation is unable to relocate their sewer force main in a timely manner, the City will install a temporary sewer bypass line and remove this section of pipeline in order to install the CDP 10-05 -CARLSBAD BOULEVARD RIPRAP EXTENSION March 17, 2010 Page 2 riprap in this area. State Parks Department will relocate the remaining sewer force main and sewer lift station afterward. This will be determined in the field as work proceeds on both projects. The State has proposed to tie into the City's sewer force main to the south and east of the current location. Relocating this section of sewer force main will necessitate the removal of the sewer lift station that is located just to the south of the exposed line. The lift station will be demolished and a pre-fabricated lift station will be installed at the north end of the State campgrounds to the south of the project site. Encina Wastewater Authority's Sewer Outfall Pipe Line The Encina Wastewater Authority's (EWA) outfall sewer line is also located in this area. Though the outfall sewer line was not exposed by the storms, the outfall line is underneath where a section of riprap will be installed. The City attempted to locate the depth of the Encina outfall by potholing in the area, but the potholing did not uncover the outfall pipe. Excavation is required to expose the outfall pipe in order to make sure the installation of the riprap does not damage the outfall pipe from the weight of the riprap. Once the Encina outfall line is exposed, and its depth verified, then a modified riprap design will be prepared by the City and a design to protect the Encina outfall will be prepared by EWA. The location and protection of the outfall pipe line is part of this emergency permit and all work on this line will occur landward (east) of the Mean High Tide Line (MHTL). City of Carlsbad's Riprap Extension The northern end of the proposed riprap would start approximately 149 feet south of the Encinas Creek Bridge, which is where the southern end of the riprap will be installed under the Encinas Creek Bridge replacement project that started construction in January of this year (CDP 09-08, SUP 09-03, and HMP 09-06). Placement of riprap will extend southward an additional 280 feet, terminating just north of the California Department of Parks & Recreation's existing sewer lift station. There is some existing riprap in the area, which would be reconfigured and supplemented with an additional 1,434 cubic yards of 4-ton riprap, 1,174 cubic yards of 2-ton riprap, and 673 cubic yards of %-ton riprap on the west side of the roadway. The riprap design is the same as the design used for the Encina Creek Bridge replacement project. The design will need to be modified in the area 25 feet on both sides above the Encina Wastewater Treatment Plant outfall pipe to help protect the existing 48-inch diameter reinforced concrete pipe. The closed southbound lanes of Carlsbad Boulevard, just south of the Encinas Creek Bridge Replacement project site, will be used for all construction staging, including parking for contractors' equipment and vehicles. Excavation and backfill equipment will be stationed on the roadway above the bluff and not on the beach. Sheet piles will be required on the beach, just west of the bluff and east of the MHTL to prevent wave action in the area where the riprap will be installed. The sheet piles will be driven into the ground by either a drop hammer, or a vibratory hammer using a crane with the appropriate attachments. The crane is currently in the area completing work on the Encinas Bridge Repair project and will not have to be brought to this area. The contractor is not allowed to have any equipment west of the westerly sheet piles, nor store any material or equipment on the beach. Beach activity will be limited to installation of sheet piling, replacement and supplement of riprap, excavation of the outfall sewer pipe, installation of a protective cover over the outfall sewer pipe, and the removal of the sewer force main. CDP 10-05 -CARLSBAD BOULEVARD RIPRAP EXTENSION March 17, 2010 Page 3 The Planning Director APPROVES this request for an Emergency Coastal Development Permit based upon the following: Findings: 1. An emergency exists that requires action more quickly than permitted by the procedures for coastal development permits or for regular permits and the work can and will be completed by May 28, 2010 unless otherwise specified by the terms ofthe permit; 2. At its March 9, 2010 meeting, the City Council of the City of Carlsbad proclaimed the continuation of a declaration of a local emergency to repair/replace roadfill at Carlsbad Boulevard. The riprap extension permitted herein is in response to this declaration. 3. Public notice on the proposed emergency action has not occurred because time did not allow; and 4. The work proposed will be consistent with the requirements of the certified Local Coastal Program (LCP). The project site is located within the Mello II Segment of the Local Coastal Program and within the City's permit jurisdiction as the project has been designed to remain landward (easterly) of the mean high tide line, and thus outside of the California Coastal Commission's retained permit jurisdiction, however, within their appeal jurisdiction. The site is also located within and subject to the Coastal Resource Protection Overlay Zone (Chapter 21.203), and the Coastal Shoreline Development Overlay Zone (Chapter 21.204) ofthe Carlsbad Municipal Code. The proposed project will comply with Mello II Policy 4-6 - "Sediment Control" Practices by adhering to the City's Master Drainage Plan, Grading Ordinance, Storm Water Ordinance, Standard Urban Storm Water Mitigation Plan (SUSMP) and Jurisdictional Urban Runoff Management Program (JURMP) to avoid increased urban run-off, pollutants and soil erosion. The zone is intended to protect sensitive resources. It requires preservation of steep slopes with vegetation (dual-criteria slopes) with some exceptions. No development is proposed in areas of steep coastal bluffs. The proposed project is consistent with the LCP in that the project will protect and stabilize the existing Carlsbad Boulevard southbound roadway and bike lane thereby ensuring access to the shoreline. In addition, the project will comply with Mello II Policy 7-13 - Visual Access by removing the existing above ground sewer lift station structure which will remove an obstruction to public ocean views. In addition, the relocated sewer pipelines will be installed underground, rip rap will be placed at or below existing road level, and the new lift station will be located in a vegetated area without direct ocean view. Therefore, the project will not obstruct views of the coastline as seen from public lands or the public right-of-way, nor othenwise damage the visual beauty of the coastal zone. 5 This emergency project is statutorily exempt from the California Environmental Quality Act pursuant to CEQA Guidelines Section 15269. Conditions: 1. The Planning Director does hereby APPROVE the Emergency Coastal Development Permit, for the project entitled "Carlsbad Boulevard Rip Rap Extension" (Exhibits "A" - CDP 10-05 -CARLSBAD BOULEVARD RIPRAP EXTENSION March 17,2010 Page 4 "E"), dated March 17, 2010, on file in the Planning Department and incorporated by this reference, subject to the conditions herein set forth. 2. The Emergency Coastal Development Permit is granted subject to completion of the emergency repair work by May 28, 2010. 3. The Developers (City of Carlsbad, California Department of Parks & Recreation, and Encina Wastewater Authority) shall submit a formal application for a regular Coastal Development Permit and Floodplain Special Use Permit (Coastal High Hazard area) to the City within 30 days of this letter. 4. The location and protection of the outfall pipe line is part of this emergency permit and all work on this line will occur landward (east) of the Mean High Tide Line (MHTL). 5. The riprap design shall be the same as the design used for the Encinas Creek Bridge replacement project. 6. The contractor is not allowed to have any equipment west of the westerly sheet piles, nor store any material or equipment on the beach. Beach activity will be limited to installation of sheet piling, replacement and supplement of riprap, excavation of the outfall sewer pipe, installation of a protective cover over the outfall sewer pipe, and the removal of the sewer force main. CITY OF CARLSBAD DON NEU Planning Director DN:PD:sm California Coastal Commission, Attn: Deborah Lee, District Manager, 7575 Metropolitan Drive, Suite 103, San Diego, CA 92108 State of California Department of Parks and Recreation, Attn: Brian Ketterer, Sector Superintendent, San Diego Coast District/North Sector, 2680 Carlsbad Boulevard, Carlsbad, CA 92008 Skip Hammann, Transportation Director Eva Plajzer, Senior Civil Engineer Dave de Cordova, Principal Planner File Copy Data Entry March 17, 2010 California Coastal Commission Attn: Peter Douglas, Executive Director 45 Fremont Street, Suite 2000 San Francisco, CA 94105-2219 SUBJECT: ISSUANCE OF EMERGENCY COASTAL DEVELOPMENT PERMIT FOR STORM DAMAGE TO CARLSBAD BOULEVARD Pursuant to Municipal Code Section 21.201.190E, this letter is to inform the Coastal Commission, through its Executive Director, about the nature of the emergency resulting from recent storm damage, the anticipated repair work involved, and the issuance of an emergency coastal development permit (attached). No action is required by the Coastal Commission. On February 2, 2010, during a routine inspection, City of Carlsbad staff determined that the roadway along Carlsbad Boulevard, south of the Encinas Creek Bridge had been compromised and the integrity of the roadway was at risk due to previous tidal action and severe storms which started around January 17, 2010. Additionally, city staff discovered that portions of the State Parks Department 6" sewer force main were exposed by the storm events, exacerbating the unsafe conditions of this area (see attached photos). City staff implemented protocols to ensure the safety ofthe motoring public, bicyclists, and pedestrians, and the City Manager declared a local emergency on February 5, 2010; the City Council has ratified and subsequently extended this declaration (see attached Resolution No. 2010-043). On March 17, 2010 the Planning Director issued an Emergency Coastal Development Permit (CDP 10-05) to install riprap to stabilize and protect the currently eroding southbound Carlsbad Boulevard roadway embankment, relocate a section of the California Department of Parks & Recreation's 6" sewer force main and sewer lift station, and protect the Encina Wastewater Authority's sewer outfall pipeline located under the area in which riprap is planned. The emergency permit will cover work to be completed by the City of Carlsbad, California Department of Parks & Recreation, and Encina Wastewater Authority (as needed to protect their sewer outfall pipe). All work will occur landward (east) of the Mean High Tide Line (MHTL) and thus within the City of Carlsbad's Coastal Development Permit jurisdiction. Sincerely, DON NEU Planning Director DN:PD:sm Attachments c: California Coastal Commission, Attn: Deborah Lee, District Manager, 7575 Metropolitan Drive, Suite 103, San Diego, CA 92108 Dave de Cordova, Principal Planner Scott Donnell, Senior Planner Skip Hammann, Transportation Director Eva Plazjer, Senior Civil Engineer Jacob Moeder, Associate Engineer WEST CONSULTANTS. INC. May 26, 2010 California 11440 W. Bemardo Court Suite 360 San Dlego, CA 92127-1644 858-487-9378 858-487-9448 FAX Oregon 2601 25" Street SE Suite 450 Salem, OR 97302-1286 503^85-5490 503-485-5491 FAX Wastiington 12509 Bel-Red Road Suite 100 Bellevue, WA 98005-2525 425-646-8806 425-646-0570 FAX Arizona 8950 S. 52™* street Suite 210 Tempe, AZ 85284-1043 480-345-2155 480-345-2156 FAX River IVIeasurement A Division of WEST Consultants 811 NE 154'" Street Vancouver, WA 98685 360.571.2290 360.571.2291 Fax www.westconsultants.com Hydraulics Hydrology Sedimentation Water Quality Erosion Control Environmental Services Training Quality Assurance Jack Abcarius Nolte Associates, Inc. 15070 Avenue of Science, Suite 100 SanDiego, CA 92128 Dear Mr. Abcarius: WEST Consultants, Inc. (WEST) has completed the evaluation for Nolte and Associates, Inc. (Nolte) of the wave runup and riprap sizing for the west side of the Carlsbad Boulevard South bridge over Las Encinas Creek. The purpose of the study was to evaluate whether riprap was necessary along the shoreline adjacent to the culvert, and if so, to calculate the size and gradation of the riprap and the wave runup elevation. WEST conducted a site visit on August 10, 2009 to observe current conditions. Our evaluation found the existing riprap did not appear to have been installed according to standard practice. A filter fabric or inner riprap layer did not appear to be present. This inadequate installation and subsequent erosion processes may explain why some of the rocks have been transported a short distance down the beach slope towards the ocean. The concentration of road drainage at a few locations along the top of the bank also appears to have contributed to the bank erosion. Riprap protection is recommended for the proposed bridge based on our observations at the site, as well as computed riprap sizes greater than zero. The sections below summarize the riprap sizing and wave runup calculations, which are applicable to the reach between Carlsbad Boulevard South centerline stations 104+00 and 110+83. Riprap Sizing The U.S. Army Corps of Engineers' Coastal Engineering Manual (USAGE, 2006) was used to determine the riprap size based on coastal wave height. The equation to determine riprap weight is provided in the Coastal Engineering Manual Table VI-5- 22, (p. VI-5-64): Wso = Wr / (KD (Sr -1)' cot(a) Where: W50 Wr H Sr KD median weight of armor stone in pounds; unit weight of stone (165 Ib/ft^); design wave height in feet; specific gravity of stone (=2.65/1.026); stability coefficient that varies with the shape of armor units, roughness of the armor unit surface, sharpness of edges, and degree of interlocking obtained in placement (=3.5 for rough angular and random riprap placement); Mr. Jack Abcarius, P.E. May 26, 2010 The design wave height was computed based on tides, wave setup, storm surge, and projected long- term sea level rise. The nearest tide gage is located in La Jolla, which recorded an extreme high tide of 5.5 feet NGVD on August 8, 1983 that includes storm surge. The U.S. Army Corps of Engineers State of the Coast Report for the San Diego Region (USAGE, 1991) recommends estimating sea level rise at 0.2 feet per 25 years, or 0.8 feet per 100 years. Wave setup values in the range of 0.5 to 1 feet have been referenced as reasonable estimates for the San Diego area. Combining the above values: Design Sea Level = 5.52 feet (extreme high tide)+ 1 foot (wave setup) + 0.8 feet (sea level rise over 100 years) = 7.32 feet NGVD. The proposed bridge is far enough up the beach that the design sea-state is depth limited, which means the depths are so shallow immediately offshore of the location of the revetment that the storm waves have broken and the larges waves are on flat offshore slopes (FHWA, 2008). For this condition, the Coastal Engineering Manual recommends a design wave height equal to eight tenths (0.8) of the depth at the toe of the structure. The elevation of the riprap toe is estimated to be approximately 3.2 feet NGVD. This is the point where the riprap slope, assumed at 1.5H: 1V, would intersect the beach at the toe ofthe revetment. Therefore, the design wave height is calculated as: H = 0.8 * (7.32-3.2) = 3.3 feet The calculated depth-limited wave height of 3.3 feet NGVD does not include allowances for beach erosion/scour processes. A minimum scour depth equal to the calculated wave height of 3.3 feet was assumed which equates to a total design wave height of H = 6.6 feet. The resulting rock size from the equation equals 2280 pounds—equivalent to Caltrans RSP Class 2-ton riprap with a minimum layer thickness of 5.4 feet. An inner layer of RSP Glass Vi-ton riprap with a minimum layer thickness of 3.3 feet, a backing layer of RSP Glass Backing No. 2 riprap with a minimum layer thickness of 1.25 feet, and RSP Fabric Type B are also recommended (Caltrans, 2000). Wave Runup Wave runup was calculated based on guidance in FHWA Hydraulic Engineering Circular No. 25 "Highways in the Coastal Environment" (2008), equation 6.4: Ru,2% / Hs = 1.6 r l^op vvith a maximum of 3.2 r Where: Ru,2% = runup level exceeded by 2% ofthe runups in an irregular sea Hs = Significant wave height near the toe of slope r = a roughness coefficient (r=0.55 for the stone revetments) fop = the siu-f similarity parameter, where fop = tan a / (2 n Hs / g Tp^)°^ a = slope angle Tp = wave period, peak period g = acceleration of gravity With a design wave height of 6.6 feet and a wave period of 14 seconds representative of San Diego winter storm conditions, the right side of the equation is greater than 3.2*r (=1.76), therefore the right side of the equation is set to 1.76. The wave runup calculation height, then, is equal to 1.76 WEST Consultants, Inc. Page 2 of 4 Mr. Jack Abcarius, P.E. May 26, 2010 times the design wave height of 6.6 feet, equal to 11.6 feet. Adding this wave runup to the design water level of 7.32 feet NGVD results in a wave runup elevation of 18.9 feet NGVD. The elevation of the existing top of road is approximately 15 feet NGVD, so the wave runup is expected to overtop the road by several feet. Therefore, the riprap protection should continue from the toe all the way to the top of road. Summary and Recommendations A design sea level elevation of 7.32 feet NGVD was assumed based on the extreme high water of record equal to 5.52 feet NGVD (which includes storm surge), plus wave setup of 1 foot, plus long- term sea level rise of 0.8 feet. This design sea level elevation results in a depth-limited wave height of 3.3 feet at the estimated location (and elevation) of the riprap toe. When potential scour at the revetment toe is considered, the wave height doubles to a total design wave height of 6.6 feet. RSP Class 2-ton riprap with appropriate inner layers and filter fabric is recommended to prevent bank scour adjacent to the proposed bridge for extreme tide conditions. The Califomia Coastal Commission has suggested increasing the size of the outer layer to an intermixture of RSP Glass 2- ton and RSP Glass 4-ton riprap. The wave runup elevation was calculated to be 18.9 feet NGVD, which would overtop the existing road by several feet. Due to the approximate nature of the scour depth estimate of 3.3 feet used in the riprap sizing, WEST recommends adding a factor of safety for the burial depth of the riprap to account for potential scour. A safety factor of approximately 2 is recommended, resulting in a riprap toe burial depth of about 6.5 feet. One ofthe requirements of the riprap design is to limit the amount of riprap between the top of slope at Carlsbad Boulevard South and the ocean to a distance of 27 feet. The recommended placement of riprap to comply with this requirement is provided in Figure 1. A slope of 1H:1V was necessary for the inner riprap layers in order to maintain a 1.5H:1V slope for the outer layer. Additional riprap was included in the outer layer to account for potential riprap launching due to 6.5 feet of scour at the toe. There is a possibility that installation of riprap on a 1H:1V slope will present a challenge to the contractor placing the stone; however, the inner layers of riprap and the RSP filter fabric are necessary components of the riprap installation and should not be removed from the design. References California Department of Transportation (2000). California Bank and Shore Rock Slope Protection Design, October 2000. U. S. Army Corps of Engineers (1991). Coast of California Storm and Tidal Waves Study, State of the Coast Report, San Diego Region, September 1991. U. S. Army Corps of Engineers (2006). Coastal Engineering Manual, EM 1110-2-1100, June 2006. U. S. Department of Transportation Federal Highway Administration (2008). Highways in the Coastal Environment, Hydraulic Engineering Circular No. 25, June 2008. WEST Consultants, Inc. Page 3 of 4 Mr. Jack Abcarius, P.E. May 26, 2010 1 2 3 4 5 6 7 8 9 10 11; 121 13 14 15; 16 17 18 19 20 21 22i 23: 24i 25 26i 27; 281 29 30 31 32 33 34 35 36 37 38 39 40 41; Figure 1. Riprap Placement Recommendation. Should you have any questions or comments, please feel free to contact me at (858) 487-9378. Sincerely, David S. Smith, RE. Project Manager WEST Consultants, Inc. Page 4 of 4 DEPARTMENT OF THE ARMY LOS ANGELES DISTRICT, CORPS OF ENGINEERS SAN DIEGO FIELD OFFICE 6010 HIDDEN VALLEY RD., SUITE 105 CARLSBAD, CA 92011 April 12,2010 mrvr TO ATTEmiON Of: Office of the Chief Regulatory Division DEPARTMENT OF THE ARMY NATIONWIDE PERMIT AUTHORIZATION John Cahill/Jacob Moeder City of Carlsbad (City) 1635 Faraday Ave. Carlsbad, California 92008 Dear Mr. Cahill and Mr. Moeder: This is in reply to your application (File No. SPL-2010-00374-RRS) dated April 8, 2010, for a Department of the Army Permit to discharge fill onto waters of the U.S., in association with the Carlsbad Blvd. Emergency Rip Rap Repair project in conjunction with the Encinas Creek Bridge Replacement ProjecL The proposed work would take place adjacent to and in a marine beach within the City of Carlsbad, San Diego Coimty, Califomia. Please note that this Nationwide permit confirmation is a reissuance of a modified Nationwide 14 permit confirmation issued previously on November 23,2009 (File No. SPL-2009-00482-LLC) for the Encinas Creek Bridge Replacement Project. The proposed work will take place along the Southbound Carlsbad Blvd. in the City of Carlsbad, San Diego County, CA. Based on the infonnation you have provided, the Corps of Engineers (Corps) has determined that your proposed activity complies with the enclosed terms and conditions of Nationwide Permit No. 14, as described in enclosure 1. Specifically, you are authorized to; 1. Temporarily impact up to 0.004 acre of coastal and valley freshwater marsh and 0.064 acre of non-wetland waters of ttie U.S. -2- 2. Replace an existing oversized concrete bridge (24 feet long by 68 ft. wide) with a prefabricated arch concrete bridge (38 ft. 4 inches long by 26 feet 2 inches wide). Therefore, reducing tlie overall footprint of the bridge in Encinas Creek and adjacent wetlands. 3. Increase culvert width by 12 feet. 4. Construct the Carlsbad Blvd. - Rip Rap Repairs (Project No. 6032) and impact .023 acres of waters of the U.S. of tidal marine beach adjacent to Carlsbad Blvd. as shown in the plans submitted to the Corps dated April 7,2010 as prepared by Nolte Associates. Furthermore, you must comply with the following non-discretionary Special Conditions: Special Conditions: 1. The pennitted activity shall not interfere with the right of the public to free navigation on all navigable waters of the United States as defined by 33 C.F.R. Part 329. 2. No earthwork is authorized by this Nationwide 14 permit confirmation other than what is shown in this confirmation. 3. Creosote treated pilings shall not be placed in navigable waters unless all of the following conditions are met: A) The project involves the repair of existing structures that were originally constructed using wood products; B) Hie creosote treated pilings are wrapped in plastic; C) Measures are taken to prevent damage to plastic wrapping from boat use. Such measures may include instailation of rub strips or bumpers; D) The plastic wrapping is sealed at all joints to prevent leakage; and E) The plastic material is expected to maintain its integrity for at least ten years, and plastic wrappings that develop holes or leaks must be repaired or replaced in a tnnely manner by the Permittee. 4. No other modifications or work shall occur to the structure permitted herein. 5. Temporary impacts of 0.004 acre of wetland for the Endnas Bridge project will be rrutigated through re-vegetation of native plant spedes to pre-construction conditions, as well as, the re-vegetation of newly bare areas ihat have been exposed due to tiie reduction -3- of the bridge. These areas shall be weeded quarterly for a minimum of 24 months after re- vegetation has taken place to prevent invasive plant species from dominating the site. 6. The Permittee shall discharge only clean construction materials suitable for use in the oceanic environment. The Permittee shall ensure no debris, soil, silt, sand, sawdust, rubbish, cement or concrete washings thereof, oil or petroleum products, from construction shall be allowed to enter into or placed where it may be washed by rainfall or runoff into waters of the United States. Upon completion of the project authorized herein, any and all excess material or debris shall be completely removed from the work area and disposed of in an appropriate upland site. 7. The Permittee shall notify the Corps Regulatory Division of tiie date of cormnencement of operations not less than 14 calendar days prior to commencing work, and shall notify the Corps of the date of completion of operations at least five calendar days prior to sudi completion. 8. The permittee understands and agrees that, if future operations by the United States require the removal, relocation, or other alteration, of the structure or work herein authorized, or if, in the opinion of the Secretary of the Army or his auihorized representative, said structure or work shall cause unreasonable obstruction to the free navigation of the navigable waters, the permittee will be required, upon due notice from the Corps of Engineers Regulatory Division, to remove, relocate, or alter tiie structural work or obstructions caused thereby, without expense to the United States. No daim shall be made against the Uruted States on account of any such removal or alteration. Cultural Resources: 1. Pursuant to 36 C.F.R. section 800.13, in the event of any discoveries during construction of either human remains, archeological deposits, or any other type of historic property, the Permittee shall notify the Corps' Archeology Staff witiiin 24 hours (Steve Dibble at 213-452- 3849 or John Killeen at 213-452-3861). The Permittee shall immediately suspend all work in any area(s) where potential cultural resources are discovered. The Pennittee shall not resume construction in the area surrounding the potential cultural resources until the Corps Regulatory Division re-authorizes project consfruction, per 36 C.F.R. section 800.13. Endangered Species Act and Migratory Bird Treaty Act 1. This Corps nationwide pennit confirmation does not authorize tiie take of any federally listed as threatened or endangered species, or adversely modifies their designated critical habitat. In order to legaUy take a listed species, you must have separate autiiorization under the Endangered Species Act (ESA)(e.g. ESA Section 10 permit, or a Biological -4- Opinion (BO) under ESA Section 7, with "incidental take" provisions with which you must comply). Califomia Regional Water Quality Confrol Board (CRWQCB)/ California Coastal Consistency (CCC) Determination/ Future Pennit Coordination: 1. That the permittee shall implement and abide by tiie Section 401 water quality certification No. 09C-048 issued September 17,2009 witii all subsequent amendments as prepared by tile CRWQCB - San Diego Region and supplemented by ti:ie CRWQCB's email from CRWQCB (Chiara Clemente) to tiie Corps on April 8,2010. 2. That the permittee shall implement and abide by the initial federal Coastal Consistency Determination made by tiie CCC (per letters dated March 22,2010, from CCC (Toni Ross) to the City and emaO daled April 8,2010 from Lee McEachem to the Corps forwarded by Mark Deloplaine on April 8,2010) that the City's emergency coastal development permit was not contested by the CCC pending tiie CCC's review and approval of the regular Coastal Development Permit (CDP) for the Carlsbad Blvd. Emergency Rip Rap Project and the existing revetment (reference Coastal Development #6-09-051). Permittee is hereby responsible for complying with any subsequent CCC orders to alter tiie Carlsbad Blvd. Emergency Rip Rap Repair project based on the final CCC approved CDP. The CCC declined to assert federal jurisdiction over the Enemas Creek Bridge Replacement Project per their letter to the Corps dated November 16,2009. 3. That the permittee shall, witiiin 60 days of receipt of this Nationwide permit confirmation, initiate a review of the City's maintenance, flood control, and other similar activities tiiat may require a Corps permit and meet with flie Corps to identify permitting options. This verification is valid until the NWP is modified, reissued, or revoked. All of the existing NWPs are scheduled to be modified, reissued, or revoked prior to March 18, 2012. It is incumbent upon you to remain informed of changes to tiie NWPs, We v^nll issue a public notice wben the NWPs are reissued. Furthermore, if you commence or are under confract to commence this activity before the date tiiat the relevant nationwide pennit is modified or revoked, you will have twelve (12) months from the date of the modification or revocation of the NWP to complete the activity under the present terms and conditions of this nationwide permit A nationwide permit does not grant any property rights or exclusive privileges. Also, it does not authorize any injury to the property or rights of others or authorize interference with any existing or proposed Federal project Furthermore, it does not obviate the need to obtain other Federal, state, or local authorizations required by law. Thank you for participating in our regulatory program. If you have any questions, please contact Robert Smith of my staff at (760) 602-4831 or via e-mail at RobertR.Smith@us;ice.army.mil. Please be advised that you can now comment on your experience with Regulatory Division by accessing tiie Corps web-based customer survey form at: http://per2.nwp.usace.army.mil/survey.html. Sincerely, Senior Project Manager, San Diego Section South Coast Branch, Regulatory Division Enclosure(s) -6- LOS ANGELES DISTRICT U.S. ARMY CORPS OF ENGINEERS CERTIFICATION OF COMPLIANCE WITH DEPARTMENT OF THE ARMY NATIONWIDE PERMIT Permit Number: SPL-2010-00374-RRS Name of Pennittee: City of Carlsbad - Jacob Moeder, John Cahill Date of Issuance: April 12,2010 Upon completion of the activity authorized by this permit and any mitigation requfred by the permit sign this certification and return it to the following address: U.S Army Corps of Engineers Regulatory Division ATTN: CESPL-RG-SPL-2010-00374-RRS LOS ANGELES DISTRICT, CORPS OF ENGINEERS SAN DIEGO FIELD OFFICE 6010 HIDDEN VALLEY RD., SUITE 105 CARLSBAD, CA 92011 Please note that your permitted activity is subject to a comphance inspection by cm Army Corps of Engineers representative. If you fail to comply with this nationwide permit you may be subject to permit suspension, modification, or revocation procedures as contained in 33 CFR 330.5 or enforcement procedures such as those contained in 33 CFR 326.4 and 326.5. I hereby certify that the work authorized by the above referenced pennit has been completed in accordance with the terms and conditions of the said permit and required mitigation was completed in accordance with tiie permit condition(s). Signature of Permittee Date Snuro: ESRI 8lrc<4M«) 2007 / EOAW 3009 2,000 1,000 0 ZOOO Fed Scm: 1:24,000: 1 inch = 2000 fwl Figure 2 Project Vidnlty Encinas Creek Bridge Replacement Project Biological Resources and JD Report O Old Bridg Footprint Temporary . Conshiructioni ^Impact Area Study Area tBojwdary Soura:: AaM ~ Son Diisgo Co. 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CiMMK MKMWM lecASM nor MKmw «r EAMW MU j*» cMAW MttWwoiaamtMmSMMwnweai* « IUWAMM«W M Wrflr nciirt )Mr» two >f vr ann twjut or n» MOT JMCUM a; n 4iMir vmmm ma ecx. won TO STAJIgAltP mw LEGEND ifOOt SOFT racscww p/* - fWfj LOS ANGELES DISTRICT U.S. ARMY CORPS OF ENGINEERS CERTIFICATION OF COMPLIANCE WITH DEPARTMENT OF THE ARMY NATIONWIDE PERMIT Pennit Number: SPL-2020-00374-RRS Name of Pennittee: Cify of Carlsbad - Jacob Moeder, John Cahill Date of Issuance: April 12,2010 Upon completion of the activity authorized by this permit and any mitigation required by the permit, sign this certification and return it to the following address: U.S Army Corps of Engineers Regulatory Division ATTN: CESPL-RG-SPL-2010-00374-RRS LOS ANGELES DISTRICT. CORPS OF ENGINEERS SAN DIEGO FIELD OFFICE 6010 HIDDEN VALLEY RD., SUITE 105 CARLSBAD, CA 92011 Please note that your pennitted activity is subject to a compliance inspection by an Army Corps of Engineers representative. If you fail to comply with this nationwide permit you may be subject to permit suspension, modification, or revocation procedures as contained in 33 CFR 330.5 or enforcement procedures such as tiiose contained in 33 CFR 326.4 and 326.5. I hereby certify that the work authorized by the above referenced permit has been completed in accordance with the terms and conditions of the said permit, and required mitigation was completed in accordance with the permit condjiieftte).. Date Pam Drew From: Smith, Robert R SPL [Robert.R.Smith@usace.army.mil] Sent: Thursday, September 23, 2010 9:40 AM To: Pam Drew; robert.r.smith@ Cc: John Cahill Subject: RE: Permit Number: SPL-2010-00374-RRS We can schedule a mtg. Some dates would be Oct.5,7 and 8. Let me know. Robert Revo Smith Jr., P.E. Environmental Engineer/Civil Engineer Regulatory Project Manager Carlsbad Field Office 6010 Hidden Valley Rd, Suite 105 San Diego, CA 92011-4213 (760) 602-4831/cell (760) 683-4454 fax (760) 602-4848 email robert.r.smith@usace.armv.mil Assist us in better serving you! You are invited to complete our customer survey, located at the following link: http://per2.nwp.usace.armv.mil/survev.html Note: If the link is not active, copy and paste it into your internet browser. —Original Message— From: Pam Drew [mailto:Pam.Drew@carlsbadca.gov] Sent: Tuesday, September 21, 2010 8:38 AM To: robert.r.smith@; Smith, Robert R SPL Cc: John Cahill Subject: Permit Number: SPL-2010-00374-RRS Good morning Robert, I just ran across the attached form in my file and realized that we did not sign and return it to you for the two projects we completed on May 28, 2010 (Encinas Creek Bridge Replacement & extending the riprap on SB Carisbad Boulevard). Attached is a signed copy ofthe Compliance Inspection form. Please let John Cahill or myself know if you want to meet on site for the inspection. Thank you, Planning Department CITY OF ^ CARLSBAD Public Works - Engineering www.carlsbadca.gov NOTICE TO PROCEED April 07, 2010 Certified Mail: 7004 1350 0003 7714 7555 Bert W. Salas, Inc. 10769 Woodside Ave #205 Santee, CA 92071 CONTRACT NO. 6032, CARLSBAD BLVD EMERGENCY RIP RAP REPAIRS In accordance with the Contract, you are hereby notified that the date for commencement of work on the subject projecl is April 07, 2010. The contract provides for completion of all work by May 28, 2010 Please be advised that in regard to this contract, your point of contact with the City shall be the Project Manager, Casey Arndt at (760) 602-2780 extension 7320. All business relating to this project must be done through the Construction Management & Inspection Project Manager. This division has no obligation to honor any commitment made by any other party. Sincerely, PATRICK VAUGHm P.E. Deputy City Engineer Construction Management & Inspection Skip Hammann, Transportation Director John Cahill, Project Engineer Casey Arndt, Construction Manager Kevin Davis. Utilities Rhonda Heather, Utilities File ^ Construction Management & Inspection 5950 El Camino Real, Carlsbad, CA 92008-8802 T 760-602-2780 F 760-438-4178 ® <^i&^ CITY OF '^CARLSBAD Transportation Department www.carisbadca.gov April 5, 2010 Robert Revo Smith Jr., P.E. San Diego Field Office 6010 Hidden Valley Road, Suite 105 San Diego, CA 92011-4213 SUBJECT: CARLSBAD BLVD EMERGENCY RIPRAP REPAIR - NWP 14 EXTENSION REQUEST On January 17, 2010, and for several days following, severe storms produced substantial rainfall, flooding and destructive extreme high tides in Carlsbad. These events occurred on or about the same time as higher than normal tides produced by an astronomical high tide event. On February 2, 2010, during a routine inspection. City of Carlsbad staff determined that the roadway along Carlsbad Boulevard, south of the Encinas Creek Bridge had been compromised and the integrity of the roadway was at risk. Staff implemented protocols to ensure the safety of the motoring public, bicyclists, and pedestrians, and a local emergency was declared on February 5, 2010. City staff and Nolte Associates have prepared a riprap design to prevent further erosion to Carlsbad Boulevard caused by extreme high tides. The riprap design is the same as the design used for the Las Encinas Creek Bridge Replacement project, CIP 3919 (CDP 09-08, SUP 09-03, and HMP 09-06). The Army Corps of Engineers (ACOE) has issued a Nation Wide Permit (NWP) 14 for Las Encinas Creek Bridge Replacement project (letter attached) and the City is requesting an extension of the previously issued permit. Although the sheet piles (western limits of work) will be installed about 8' landward from the high tide line, the ACOE has requested that the City seek an extension of NWP 14. The riprap design will need to be modified in the area 15 feet on both sides of the Encina Wastewater Treatment Plant outfall to help protect the existing 48-inch diameter reinforced concrete pipe. The riprap repair will begin at station 107+30 (the southern end of the riprap repair under the Encinas Creek Bridge replacement project) and extend south to station 110+08, which is just north of the State's existing sewer lift station. As part of the City's riprap extension project, a temporary sewer forcemain bypass will be installed aboveground, which will enable the contractor to remove the State's existing sewer forcemain that conflicts with the riprap improvements. The original CDP for the Encinas Creek Bridge replacement project stipulated that work shall be completed by May 28, 2010. In an effort expeditiously protect Carlsbad Boulevard from further damage and reopen both southbound lanes on Carlsbad Boulevard after May 28'^ we respectfully request a prompt issuance of NWP 14 extension so that the riprap design can be completed and necessary repairs, be made to increase the public's safety. Sincerely, J§cob Moeder, P.'E. Associate Engineer JM:rf cc: Eva Plazjer, Senior Civil Engineer - Transportation Engineering Division Pam Drew, Associate Planner - Planning Department Transportation Department 1635 Faraday Ave. I Carlsbad, CA 92008 I 760-602-2730 i 760-602-8562 fax STATE OF CALIFORNIA-THE NATURAL RESOURCES AG^W ARNOLD SCHWARZENEGGER, Governor CALIFORNIA COASTAL COMMISSION SAN DIEGO AREA 7575 METROPOLITAN DRIVE, SUITE 103 SAN DIEGO, CA 92108.4421 (619) 767-2370 March 22, 2010 Pam Drew rm^ OF CARLSBAD City of Carlsbad 1635 Faraday Ave. Carlsbad, Ca 92008 MAR 2 ^ M Re: Emergency Revetment Maintenance along Carlsbad Boulevard Gommuolty & Econorriic Deveiopment Departnient Dear Ms. Drew: Commission staff joined the City of Carlsbad and Califomia State Parks in the field on March 18* 2010, to discuss proposed emergency work repairing and supplementing an existing revetment along Carlsbad Boulevard, just north of South Carlsbad State Beach. City staff indicated that due to recent astronomical tides and storm waves, the existing force main sewer pipe, bluff, and Carlsbad Boulevard are no longer adequately protected by the existing revetment. As such, an emergency permit is currently being reviewed by the City and is scheduled for a City Council meeting on March 23"*, 2010. The emergency work will include moving existing dislodged rock into aligimient with the revetment, importing additional rock to supplement the existing revetment, and importing additional rock to create a new portion of revetment that does not currently exist. While it looks like there may be justification for an emergency permit, we do not agree with the City's position relative to permit jurisdiction. While we have not reviewed scaled plans, it appears that portions of the proposed repairs will occur below the Mean High Tide Line within the Coastal Commission's original permit jurisdiction. Recently, the Commission asserted jurisdiction over revetment maintenance activities directly north, and in line with the existing revetment (reference Coastal Development Permit # 6- 09-051), thus it can be expected that the Commission will also be asserting jurisdiction over the revetment work currently proposed. However, because the work is proposed under an emergency permit, the Commission will address the jurisdictional question when the City reviews/approves the required follow-up Regular Coastal Development Permit. Additionally, because the work proposed is considered temporary work to address an emergency situation,, it would be diligent of the City to limit the proposed emergency repairs to che minimal necessary and eliminate any work that cannot by modified in the future. Please submit any and all follow-up review, as built site-plans, etc. to the Commission as soon as they become available. If you have any questions, please do not hesitate to contact me. Siflcerely, Ufc/, Toni Ris Coastal vlanner (C:\Docunients and Settings\tross\Desktop\TLR Reports\Response to emergency revetment work Carlsbad Blvd.doc) <^^^ CITY OF ^CARLSBAD Transportation Department www.carisbadca.gov March 8, 2010 Don Neu City of Carlsbad MAR 0 9 2010 Planning Department ^ITK/^ 1635 Faraday Avenue CITY OF CARISBAD Carlsbad, CA 92008 PLANNING DEPT SUBJEa: CARLSBAD BLVD EMERGENCY RIP RAP REPAIR On January 17, 2010, and for several days following, severe storms produced substantial rainfall, flooding and destructive tidal-surge wave action in Carlsbad. These events occurred on or about the same time as higher than normal tides produced by an astronomical high tide event. On February 2, 2010, during a routine inspection. City of Carlsbad staff determined that the roadway along Carlsbad Boulevard, south of the Encinas Creek Bridge had been compromised and the integrity ofthe roadway was at risk. Staff implemented protocols to ensure the safety of the motoring public, bicyclists, and pedestrians, and a local emergency was declared on February 5, 2010. City staff and Nolte Associates have prepared a 60% rip rap design to prevent further erosion to Carlsbad Boulevard caused by tidal surges. The rip rap design is the same as the design used for the Encina Creek Bridge replacement project, CIP 3919 (CDP 09-08, SUP 09-03, and HMP 09-06). The design will need to be modified in the area 25 feet on both sides of the Encina Wastewater Treatment Plant outfall to help protect the existing 48-inch diameter reinforced concrete pipe. The rip rap repair will begin at station 107+60 (the southern end ofthe rip rap repair under the Encinas Creek Bridge replacement project) and extend south to station 110+08, which is just north of the State's existing sewer lift station. The City attempted to locate the depth of the Encina outfall to complete the rip rap design, but potholing operations were unsuccessful. Excavation is required on the west side of Carlsbad Boulevard to expose the outfall and complete the design. Once the Encina outfall line is exposed and its depth verified, then a modified rip rap design will be prepared by the City and a design to protect the Encina outfall will be prepared by Encina Wastewater Authority (EWA). The original CDP for the Encinas Creek Bridge replacement project stipulated that work shall be completed by May 28, 2010. In an effort expeditiously protect Carlsbad Boulevard from further damage and reopen both southbound lanes on Carlsbad Boulevard after May 28*'^, we respectfully request issuance of an Emergency CDP so that the rip rap design can be completed and necessary repairs be made to increase the public's safety. Sincerely, JaoDb Moeder, P.E. ssociate Engineer JM:rf cc: Eva Plazjer, Senior Civil Engineer - Transportation Engineering Division Skip Hammann, Transportation Director-Transportation Department Pam Drew, Associate Planner - Planning Department Transportation Department 1635 Faraday Ave. I Carlsbad, CA 92008 I 760-602-2730 I 760-602-8562 fax