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HomeMy WebLinkAbout1980-08-05; City Council; 6197-4; Introduction of Grading OrdinanceAGENDA BILL NO. 6197 ' Supplement No. 4 (17} CITY OF CARLSBAD Initial: Dept. Head £, DATE: August 5, 1980 C. Atty \j DEPARTMENT: Engineering • c- M9r- SUBJECT:INTRODUCTION OF GRADING ORDINANCE STATEMENT OF THE MATTER The proposed grading ordinance has now been before the Council five times over the past five months, including a workshop session. Input to the ordinance has been received from local engineering firms, developers and the construction industry. As a result of the impact at the July 15, 1980 Council meeting, all provisions of the ordinance-which required additional grading restrictions in the coastal zone have been deleted. In addition, the concerns of the Construction Industry Federation have been addressed. The ordinance should now be ready for adoption. • FISCAL IMPACT The ordinance may have the effect of increasing the cost of development to a minor degree. EXHIBITS 1. Response to the Construction Industry Federation letter of July 14, 1980. 2. Proposed Ordinance No.^^tj^ Setting Fortti Provisions for Excavation and Grading. • • • 3 . Summary of Ordinance No. 8086 ^Mch will be used for publication purposes. RECOMMENDATION Introduce Ordinance N Council Action: 8-5-80 Council introduced Ordinance No. 8086 8-19-80 Council adopted Ordinance 8086. 1200 ELM AVENUE . r*-, CARLSBAD, CALIFORNIA 92008 yUsWrfll (714)438-5541 €itp of Carte&afc July 18, 1980 Robert C. Cozens Legislative Director Construction Industry Federation 438 Camino Del Rio South Suite 206 San Diego, CA 92108 SUBJECT: CARLSBAD GRADING ORDINANCE I received your letter which offered comments on the proposed new Grading Ordinance for Carlsbad. In general, your comments are well taken and lire have made appropriate changes. Specifically, our responses to your comments are as follows: 1. We have attempted to develop wording to better identify clearing and grubbing operations that may be exempt. A review of other - ordinances which restrict clearing and grubbing reveals no inrproved wording. Our own ordinance section is taken verbatim from the City of San Diego Grading Ordinance. Clearing for fire prevention purposes is covered in the weed abatement sections of the City Code and agricultural grading is exempt from the proposed new ordinance. I would be happy to consider any wording which you might provide that you feel would improve any clearing and grubbing restriction in our ordinance. 2. You were concerned that a section of the ordinance dealt ttfith the City's right to order a property owner to correct a hazardous slope condition. The attorney does not feel that the City is exposing itself to liability should the City Engineer not detect sa unsafe excavation or embankment. The fears you hold for misuse of the City Engineer's power to order correction of slope defic- iencies are not clearly spelled out in your example. I can't imagine that the City would pursue a property owner who had exper- ienced slope failure due to the City's poor design of a street. 3. We have corrected the typographical error in the "Fee" section of the ordinance. Page -2- CARLSBAD GRADING ORDINANCE 4. It is not the City's intent to require advance approval for a minor change in the Grading Ordinance during the course of construction. We have inspectors on the job with authority to deal with minor ~ changes in plans. Should the inspector feel that he could not approve a change at that time, the City Engineer would be consulted. 5. We have deleted the reference to a three-percent limit of grade for the last 50 feet of access road. 6. The City Council has consistently applied the storm damage provisions contained in the proposed ordinance to conditions of development for which they have discretionary approval. We are not only concerned with siltation of lagoons, but also with severe siltation problems which affect our streets, sidewalks and drainage channels during the rainy season. 7. The landscaping design which would require a landscape architect is limited to those grading projects which are in excess of S,000 cubic yards. • It is my intention to try to prepare a revised Grading Ordinance for Council's consideration on August 5, 1980. The ordinance will delete special grading provisions for the coastal zone. I would appreciate receixdng any additional comments you may have at least a few days prior to the Council meeting, if possible. Les Evans City Engi LE:—t 1 2 5 4 5 6 7 8 9 10 11 12 13 14 is 16 17 18 19 20 21 22 23 24 25 26 27 28 ORDINANCE NO. 8086 AN ORDINANCE OF THE CITY COUNCIL OF THE CITY OF CARLSBAD, CALIFORNIA, AMENDING TITLE 11, OF T-HE CARLSBAD MUNICIPAL CODE BY THE ADDITION OF CHAPTER 11.06 SETTING FORTH PROVISIONS FOR EXCAVATION AND GRADING. The City does ordain as SECTION 1 is amended Sections: 11. 11. 11. 11. 11. • 11. 11. 11. 11. 11. 11. 11. 11. 11. 11. 11. 11. 11. 11. 11. 11. 11. 11. .„ 06 06 06 06 06 06 06 06 06 06 06 06 06 06 06 06 06 06 06 06 06 06 06 Council, of the City of Carlsbad, California, follows: : That Title 11 of the Carlsbad Municipal Code by the amendment of Chapter 11.06 to read as .follows: .010 .020 .030 .040 .050 .060 .070 .080 .090 .100 .110 .120 .130 .140 .150 .160 .170 .180 .190 .200 .210 .220 .230 "Chapter 11.06 EXCAVATION AND GRADING Piirpose. Definitions . Permits required. Hazards. Grading permit reqxiirements . Permit limitations and conditions. Denial of permit." Bonds . Excavations . Fills. Slope location and setbacks. Drainage. Planting of slopes Storm damage precautions. Storm damage precautions. Incomplete work Storm damage precautions. Effect of non-compliance Grading inspection and supervision. Responsibility of permittee. Reports required. Appeals . Depositing earth, sand or gravel, etc., upon public or private property. False statements in application or plans. Violations . . _ T _ 1 2 3 4 5 6 7 8 9 10 11 12 13 14 11.06.010 Purpose. The purpose of this chapter is to estab- lish minimum requirements for grading, excavating and filling of land, to provide for the issuance of permits and to provide for the enforcement of the requirements. These provisions are supple- mentary and additional to Chapter 20 (Subdivision) and Chapter 21 (Zoning) of this code and-shall be read and construed as an integral part of these chapters and the land development patterns and controls established thereby. It is the intent of the City Council to protect life and property and promote the general welfare enhance and improve*the physical environment of the community; and preserve, subject to economic feasibility, the natural scenic char- acter of the City. The provisions of this chapter shall be adminis- tered to achieve, to the extent possible, the following goals: (a) Ensuring that future development of lands occurs in the manner most compatible with surrounding areas and so as to have the least effect upon other persons or lands, or upon the general public; (b) Ensuring that soil will not be stripped and removed from lands in the more scenic parts of the City, leaving the same barren unsightly, unproductive; and subject to erosion and the hazards of subsidence and faulty drainage; (c) Encouraging the planning, design and development of building sites in such fashion as to provide the maximum in safety and human enjoyment, while adapting development to and taking advantage of the best use of the natural terrain; (d) Encouraging and directing special attention toward the retention insofar as practical, of the natural planting and a maximum number of existing trees. 15 11.06.020 Definitions. Whenever the following words, terms or phrases are used in this chapter they shall be construed as defined in the following subsections unless from the context in which the word, term, or phrase is used a different meaning is specifically defined or intended. (a) "Bedrock" is the relatively solid, undisturbed rock in place either at the ground surface or beneath surficial deposits of gravel, sand or soil. (b) "Civil Engineer" shall mean a professional engineer in the branch of civil engineering holding a valid certificate of registration issued by the State of California. (c) "excavation" shall mean any earth, sand, gravel, rock or other similar material which is cut into, dug, quarried, uncovered, removed, displaced, relocated or bulldozed by man and the condition resulting therefrom. (d) "Fill" shall mean deposits of soil, rock, or other similar irreducible materials placed by man. (e) "Finished Grade" shall mean the vertical location of the ground surface upon completion of any excavation or fill. (f) "Geologist" shall mean a person holding a valid certlficat of registration as a geologist in the specialty of engineering geology issued by the State of California under provisions of the Geologist Act of the Business and Professions Code. (g) "Grading" shall mean any excavation or fill or combination thereof. (h) "Natural Grade" is the vertical location of the ground surface prior to any excavation or fill. 2 (i) "Rough Grade" is the elevation of the ground surface established by grading that approximates the final elevation shown 3 on the approved design. (j) "Site" is any lot or parcel of land or contiguous com- 4 bination thereof, under the same ownership, where grading is proposejd or performed. 5 (k) "Soils Engineer" is a civil engineer experienced in soils mechanics who investigates and reports on the stability of existing Q or proposed slopes, controls the installation and compaction of fills, recommends soil bearing values and provides design criteria 7 and calculations for special earth structures such as buttress fills (1) "Soil Testing Agency" is an agency regularly engaged in 8 the testing of soils under the direction of a civil engineer exper- ienced in soil mechanics (a soils engineer). 9 (m) "Grading Engineer" shall mean the civil engineer respon- sible for the observation of the grading in accordance with the 10 requirements of Section 11.06.200. 11 11.06.030 Permits Required. Except as provided in this sec- tion, no person shall do any grading without first having obtained 12 a grading permit from the City Engineer. Unless the provisions of Chapter 11.07 of this code apply, a grading permit shall not be 13 required for the following: (a) An excavation below finished grade for basements and 14 footings of a building, retaining wall or other structure auth- orized by a valid building permit. This shall not exempt any fill 15 made with the material from such excavation nor exempt any excava- tion having an unsupported heiyht greater than five feet after the 16 completion of such structure. (b) Cemetery graves. 17 (c) Refuse disposal sites controlled by other regulations. (d) Excavations for wells or tunnels or utilities. 13 (e) Mining, quarrying, excavating, processing, stockpiling of rock, sand, gravel, aggregate or clay where established and provided 19 for by law provided such operations do not affect the lateral support or increase the stresses in or pressure upon any adjacent or con- 20 tiguous property. (f) Exploratory excavations under the direction of soil 21 engineers or engineering geologists. (g) An excavation on any site, or contiguous sites, held under 22 one ownership which is less than four feet in vertical depth at its deepest point measured from the natural ground surface and does not 23 result in the movement of more than 100 cubic yards of material per each 8,000 square feet of area or portions thereof, not extending 24 below the angle of repose or natural slope of the soil as measured from a point one foot inside the exterior property line (cut of fill 25 within the building envelope does not apply toward this maximum volume). 26 (h) A fill on any site or contiguous sites held under one ownership in which all of the following are found to exist: 27 (1) None of the fill exceeds three feet in vertical height; 28 I /// . /// -3- 1 (2) None of the fill is placed on an existing slope steeper than five units horizontal to one vertical; 2 (3) The fill does not change or adversely affect the existing drainage pattern; (4) The toe of the fill is no closer than three feet to an exterior property line; and (5) Does not exceed 100 cubic yards of material per each 8,000 square feet of area or portion thereof. (i) Grading in an isolated self-contained area if the City Engineer finds that no danger to private or public property can now or hereafter result from grading operations. (j) Clearing and grubbing of vegetation which must be done in connection with land development is an integral part of the total work covered by the discretionary approval. Any person desiring to do land development work shall not undertake clearing and grubbing operations until the appropriate permit or agreement has been obtained. For the purposes of this section, "clearing and grubbing" shall mean the removal of any and all types of vegetation; 10 the removal of roots, etc., from land; and the clearing or breaking up of the surface of land by digging. 11.06.040 Hazards. Whenever the City Engineer determines 12 that any existing excavation or embankment or fill on private property has become a hazard to life-and limb, or endangers property, or adversely affects the safety, use or stability of a public way or drainage- channel, the owner of the property upon which the excavation or fill is located, or other person or agent in control of said property, upon receipt of notice in writing from the City Egnineer shall within the period specified therein repair or eliminate such excavation or embankment so as 16 to eliminate the hazard and be in conformance with the require- ments of this code. 17 11.06.050 Grading Permit Requirements. (a) Prior to appli- 18 cation for a grading permit, the applicant shall fullfill all Environmental Protection Procedures described in Chapter 19.04 of this code. (b) Application. To obtain a grading permit, the applicant 20 shall first file an application in writing on a form furnished for that purpose. Every such application shall: (1) Describe the land on which the proposed work is to be performed by lot, block, tract and by a street address or by similar description sufficient to readily identify and definitely locate the site. 23 (2) State the name and address of: the owner of said land; the person who is to perform the work; and, the Supervising 24 Grading Engineer if such work is to be performed as controlled grading according to Section 11.06.200. 25 (3) Be accompanied by plans, specifications and cal- culations as may be required by Subsection (c) of this Section. 26 (4) State the volume of the material to be handled. (5) Be signed by the applicant or his authorized agent, 27 who may be required to submit evidence of such authority. (6) Give such other information as reasonably may be 28 required by the City Engineer. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 (c) Plans and Specifications. With each application for a grading permit and when required by the City Engineer for enforce- ment of any provisions of this code, three sets .of plans and specifications shall be submitted. The plans shall be prepared and signed by a civil engineer and shall show the following: (1) A vicinity'sketch or other means of adequately indicating the site location. (2) Boundary lines of the property on which the work is to be performed. (3) Each lot or parcel of land into which the site is proposed to be divided. (4) All of the proposed uses of the site and, if -the site is to be divided, the proposed use of each lot or parcel of.land. (5) Location of any existing buildings or structures on the property where the work is to be performed, and the location of any buildings or structures on adjacent land which are within 15 feet of the property line. (6) Accurate contours showing the topography of the existing ground. (7) Elevation, location, extent and slope of all proposed grading shown by contours, cross sections or other means and location of any rock disposal areas, buttress fills or other special featiires, if such are proposed to be included in the work. (8) A statement of the quantities of material to be excavated and/or filled and the amount of such material to be imported to, or exported from the site. (9) A statement of che estimated starting and com- pletion dates for work covered by the permit. (10) A statement signed by the owner acknowledging that a civil engineer, soils engineer and/or geologist will be employed to give technical advice and consultation or observe the work, whenever approval of the plans and issuance of the permit are to be based on the condition that such professional persons be so employed. (11) Detailed plans of all drainage devices, walls, cribbing, or other protective devices to be constructed in connection with, or as a part of, the proposed work, .together . with a map showing the drainage area and estimated runnoff of the area served by any drains. (12) Any additional plans, drawings or calculations deemed necessary by the City Engineer to show conformance of the proposed work with the requirements of this Code or related ordinances. (d) Engineering Geological Reports. The City Engineer may require an engineering geological investigation and report, based on the most recent grading plan. The engineering geo- logical report shall include an adequate description of the geology of the site and conclusions and recommendations re- garding the effect of geologic conditions on the .proposed development. Recommendation included in the report and approved by the City Engineer shall be incorporated in the grading plans or specifications. -y- 1 (e) Soils Reports. The City Engineer may require a soils investigation and report based on" the most recent grading plan. 2 Such reports shall include data regarding the nature, distri- bution and strength of existing soils' recommendations for 3 grading procedures and de'sign criteria for corrective measures, if required. Recommendations included in the report and approved 4 by the City Engineer shall be incorporated in the grading plans or specifications. 5 (f) Fees. (1) Plan Check Fee. For each excavation and fill on • 6 the same site, the fee shall be based on the volume of excava- tion or fill, whichever is greater. Before accepting a set of 7 plans and specifications for checking, the City Engineer shall collect a plan checking fee. Separate permits and fees shall 8 apply to retaining walls or major drainage structures as indicated elsewhere in this code. There shall be no separate 9 charge for standard terrace drains and similar facilities. The amount of the plan checking fee for grading plans shall be paid 10 to the City in accordance with this section: (A) 100 cubic yards or less $10.00 11 (B) 101 to 1000 cubic yards. . . . . .$15.00 (C) 1001 to 10,000 cubic yards $20.00 12 (D) 10,001 to 100,000 cubic yards - $20.00 for the first 10,000 cubic yards plus $10.00 for 13 each additional 10,000 cubic yards or fraction thereof. 14 (E) 100,001 to 200,000 cubic yards - $110.00 for the first 100,000 cuoic yards plus $6.00 for 15 each additional 10,000 cubic yards or fraction thereof. 16 (F) 200,001 cubic yards or more - $170.00 for the first 200,000 cubic yards, plus $3.00 for 17 ' each additional 10,000 cubic yards or fraction thereof. 18 (2) Grading Permit Fees. A fee for each grading permit 19 shall be paid to the City as follows: (A) 100 cubic yards or less $10 20 (B) 101 to 1000 cubic yards - $15.00 for the first 100 cubic yards plus $7.00 for each additional 21 100 cubic yards or fraction thereof. (C) 1001 to 10,000 cubic yards - $78.00 for the 22 first 1000- cubic yards, plus $6.00 for each additional 1000 cubic yards or fraction thereof. 23 (D) 10,001 to 100,000 cubic yards - $132.00 for the first 10,000 cubic yards, plus $27.00 for 24 each additional 10,000 yards or fraction thereof, (E) 100,001 cubic yards or more - $375.00 for the 25 first 100,000 cubic yards, plus $15.00 for each additional 10,000 cubic yards or fraction 26 thereof. 27 The fee for grading permit authorizing additional, work to that under a valid permit shall be the difference between the 28 fee paid for the original permit and the fee shown for entire project. 1 11.06.060 Permit Limitations and Conditions. All grading permitsshall be subject to the limitations and conditions 2 established by this section. (a) General Conditions. The issuance of a grading permit shall constitute an authorization to do only that work which is described or illustrated on the application for the permit, or on the grading plans and specifications approved by the City Engineer. (b) Jurisdictions of Other. Agencies. Permits issued under the provisions of this Code shall not relieve the owner of the responsibility for securing permits or licenses that may be required from other departments or divisions of the governing agencies. (c) Time Limits. The permittee shall fully perform and 8 complete all of the work required to be' done pursuant to the grading permit within the time limit specified therein or, if no time is so specified, within 180 days after the date of issuance of the permit. 10 The time limit specified may be extended by the City Engineer 11 upon written request of the permitte, owner or surety, if.in the discretion of the City Engineer, good and sufficient cause 12 has been shown. 13 (d) Conditions of Approval. In granting any permit under this Code, the City Engineer may attach such conditions as may 14 be reasonably necessary to prevent creation of a nuisance or hazard to public or private property. Such conditions may 15 include, but shall not be limited to: 16 (1) Improvement of any existing grading to bring it up to the standards of this Code. 17 (2) Requirements for fencing of excavations or fills which would otherwise be hazardous. 18 (e) Modification of Approved Plans. Any modifications of or changes in the approved grading plans must be approved by 19 the City Engineer. Modifications which affect the basic tract design or land use must have the approval of the appropriate 20 control agency. (f) Special Permit - Agricultural, Stockpile or Road Grading. 21 Where the grading proposed is solely for the purpose- of preparing land for agricultural purpo.ses or for the construction of a 22 roadway to be used as access for maintaining the use of the land at the time of the permit, the City Engineer may issue a 23 special permit therefor and modify the requirements of this Chapter when he finds: 24 (1) The site of the propose'd work has an area of not less than ten acres. 25 (2) The work will be reasonably safe for the intended use and will not result in a hazard to adjoining property or 26 existing structures. (3) Adequate provision will be made for drainage and 27 erosion control. 28 /// /// _7— 1 2 5 4 5 6 7 8 9 10 11 12 13 14 15 16 17 IS 19 20 21 22 23 24 (g) Export of Earth from or Import of Earth to the Project Site. Where an excess of 5,000 cubic yards of earth per site project is moved on public roadways from or to the site of an earth grading operation, all the following requirements shall apply: (1) Either water or dust palliative or both must be applied for the alleviation or prevention of excessive dust resulting from the loading or transportation of earth from or to the project site on p'ublic raodways. The permittee shall be responsible for maintaining public rights-of-way used for handling purposes in a condition free of dust, earth, or debris attached to the grading operation. (2) Loading and transportation of earth from or to the site must be accomplished between 7 a.m.and sunset, Monday through Friday, or 8 a.m. and sunset on Saturday. (3) Access roads to the premises shall be at points designated on the approved grading plan only. (4) The last 50 feet of the access road, as it approaches the intersection with the public raodway, shall have a 300^foot clear, unobstructed sight distance to the intersec- tion from both the public raodway and the access road. If the 300 foot sight distance cannot be obtained, flagmen shall be posted. (5) A stop sign conforming to the requirements of Section 21400 of the California Vehicle Code shall be posted at the entrance of the access road to the public raodway. (6) An advance warning sign must be posted on the public raodway 400 feet on either side of the access inter- section, carrying words "truck crossing." The sign shall be diamond in shape, each side being 30 inches in length, shall have a yellow background, and the letters thereon shall be five inches in height. The sign shall be placed six feet from the edge of the pavement and the base of the sign shall be five feet above the pavement level. The advance warning sign shall be covered or removed when the access intersection is not in use. (h) Time of Grading Operations. Grading operations within one-half mile of a structure for human occupancy shall not be % conducted between the hours of sunset and 7 a.m. The City Engineer may, however, permit grading operations during specific hours after sunset or before 7 a.m., if he determines that such operations are not detrimental to the health, safety, or welfare of the inhabitants of such a structure. Permitted hours of operation may be shortened by the City Engineer on his finding of a previously unforeseen effect on health, safety or welfare. The noise limitation provisions of Chapter 8.48 of this Code will be observed. 11.06.070 Denial of Permit. A grading permit shall not be issued to anyone if the following conditions are found: 25 (a) Hazards. The City Engineer shall not issue a grading permit in any case where he finds that the work as proposed by 25 the applicant is likely to adversely affect the stability of adjoining property or result in the deposition of debris on any 27 public way or interfere with any existing drainage course or be in an area determined to be subject to geological hazard. 28 /// /// -8- 1 If it can be shown to the satisfaction of the City Engineer that the hazard can be essentially eliminated by the construction 2 of retaining structures, buttress fills, drainage devices, or by other means, the City Engineer may issue the permit with the 3 condition that such work be performed. (b) Land use. The City Engineer shall not issue a grading 4 permit for work on a site unless the proposed uses shown on the grading plan for the site will comply with all provisions of 5 Chapter 21 of this Code. 6 11.06.080 Bonds (a) A permit shall not be issued unless the permittee shalT first post with the City Engineer a bond, 7 in a form prescribed by the City Attorney, executed by the owner and a corporate surety authorized to do business in the State 8 of California as a surety in an amount sufficient to cover the cost of the project including the construction of drainage 9 and protective devices and any corrective work necessary to remove and eliminate engineerina and geological hazards. 10 In lieu of a surety bond, the applicant may provide a 11 deposit either with the City or a responsible escrow agent or trust company selected by the City of cash or negotiable bonds 12 of the kind approved for securing deposits of its public moneys; or an irrevocable instrument of credit from one or more res- 13 ponsible financial institutions regulated by federal or state government and pledging that the funds are on deposit and 14 guaranteed for payment on demand by the City. 15 The City Engineer may reduce the amount of the bond to the extent that he determines that the hazard or danger created by 16 the work does not justify the full amount. 17 No bond shall be required when the City Engineer determines the proposed grading will not adversely affect the subject pro- 18 perty or adjacent property or existing or proposed structures thereon, and will not create, cause, or precipitate a geological, 19 flood, drainage, erosion, siltation, or other adverse environ- mental impact if, for any reason, the proposed project or 20 grading is not completed. 21 On development where progressive individual grading projects or several concurrent projects are being constructed by one 22 owner, a continuing bond or single instrument of credit may be provided which will cover all such projects; the amount 23 thereof shall be determined by the City Engineer. (b) Every bond shall require that the permittee shall: 24 (1) Comply with all the provisions of this Code or other applicable laws and ordinances. 25 (2) Comply with all the terms and conditions of the permit for excavation or fill to the satisfaction of the City 26 Engineer. (3) Complete all of the work contemplated under the 27 permit within the time limit specified in the permit or complete the work to a safe condition satisfactory to the City 28 Engineer. The City Engineer may, for sufficient cause, extend -9- 1 the time specified in the permit, but no such extension shall release the surety upon the bond, 2 (c) The term of each bond shall begin upon the date of filing and shall remain in effect until the completion of the 3 work to the satisfaction of the City Engineer. In the event of failure to complete the work and failure to comply with all 4 of the conditions and terms of the permit, the City Engineer may order the work required by the permit to be completed or 5 put in a safe condition to his satisfaction. The surety executing such bond or deposit shall continue to be firmly 6 bound under a continuing obligation for thepayment of all satisfactory necessary costs and expenses that may be incurred 7 or expended by the governing agency in causing any and all such required work to be done. In the case of a cash deposit, said 8 deposit of any unused portion thereof shall be refunded to the permittee. 9 (d) Whenever the City Engineer finds or determines that a default has occurred in the performance of any requirement 10 of a condition of a permit issued hereunder, written notice thereof shall be given to the principal and to the surety on 11 the bond. Such notice shall specify the work to be done, the estimated cost thereof and the period of time deemed by the 12 City Engineer to be reasonably necessary for the completion of such work. 13 After receipt of such notice, the surety shall, within the 14 time specified, cause or require the work to be performed, or failing therein, shall pay over to the City Engineer the 15 estimated cost of doing the work as set forth in the notice. Upon receipt of such monies, the City Engineer shall cause the 16 required work to be performed and completed. 17 (e) A substitute bond or letter of credit may be filed in lieu of any above-mentioned bond or letter of credit, and.the 18 City Engineer may accept the same if it is suitable to insure completion of the work remaining to be performed and in proper 19 form and substance, and the bond or letter of credit for which it is substituted may be exonerated if the City Engineer finds 20 that the conditions of said bond or letter of credit for which a substitute has been filed have been satisfied and that no 21 default exists as to the performance upon which the said bond or letter of credit is conditioned. 22 11.06.090 Excavations Cuts shall not be steeper in slope 23 than two horizontal to one vertical unless the owner furnishes a soils engineering or an engineering geology report, or both, 24- stating that the site has been investigated and giving an opinion that a cut at a steeper slope will be stable and not 25 create a hazard to public or private property. The City Engineer may require the excavation to be made with a cut face flatter 26 in slope than two horizontal to one vertical if he finds it necessary for stability and safety,27 /// 28 '" -10- 1 Cut slopes more than 40 feet in height shall have drainage terraces provided at vertical intervals not exceeding 25 feet. 2 Such terraces shall be not less than eight feet in width (total horizontal distance) except that when the total slope height 3 exceeds 100 feet, one terrace near mid-height shall be not less than 20 feet in width (total horizontal distance). The design 4 and construction of drainage terraces shall conform to the requirements of Section 11.06.120. 5 11.06.100 Fills (a) Compaction. All fills shall be com- 6 7n acceptable to the City Engineer. 8 (1) Compaction may be less than 90 percent of maximum 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 pacted throughout their full extend to a minimum of 90 percent of the maximum density as determined by A.S.T.M. Soil Compaction Test D1557-70. Field density shall be determined by a method density, as determined by the above test, within six inches of the slope surface when such surface material is placed and the slope surface when such surface material is placed and complacted by a method acceptable to the City Engineer. (2) Fills not intended to support structures need not be compacted to these standards if the City Engineer determines that such compaction is unnecessary as a safety measure. In making this determination, the City Engineer may require that an investigation be made by a soils engineer to establish the characteristics of the soil, the amount of settlement to be expected, and the susceptibility of the soil to erosion or slippage. (3) Slope surfaces may be prepared for planting by scarifying, by the addition of top soil, or by other methods provided such slopes when so prepared otherwise comply with the requirements of this section. (b) Preparation of Ground. The existing round surface shall be prepared to receive fill by removing vegetation, non- complying fill or other incompetent material. No compacted fill shall be placed unless the underlying soil or bedrock has been investigated by the soil engineer or geologist and found to be capable of safely supporting the additional weight. Where the slope of the existing ground surface is five horizontal to one vertical or steeper, the fill shall be supported on level benches cut into competent material. Except where recommended by the soils engineer or geologist as not being necessary, subdrains shall be provided under all fills placed in natural drainage courses and in other locations where seepage .is evident. Such subdrainage systems shall be of a material and design approved by the soil engineer and acceptable to the City. Engineer. The location of the subdrains shall be recorded in plan and elevation by the soil engineer and shown on an as-built plan. (c) Fill Slope. The steepness of fill slopes shall be determined by a soil engineer who shall submit soil test data and engineering calculations to substantiate to the satisfaction of the City Engineer the stability of the fill slope and slope surface under conditions of saturation. In the absence of such determination, no fill slope shall exceed a steepness of two -11- horizontal to one vertical. (d) Fill material. No organ-ic or other reducible material 2 shall be incorporated in fills. Except as recommended by the soils engineer and approved by the City Engineer, no rock or 3 similar irreducible material with a maximum dimension greater than twelve inches shall be buried or placed in compacted fills. 4 (e) Drainage Terraces Required. Fill slopes more than 30 feet in height shall have drainage terraces provided at 5 vertical intervals not exceeding 25 feet. Such terraces shall be not less than eight feet in width (measured horizontally Q from the outside edge) except that where the total slope height exceeds 100 feet. One terrace near mid-height shall be not less 7 than 20 feet in width (measured horizontally from the outside edge) . The design and construction of drainage terraces 8 shall conform to the requirements of Section 11.06.120. (f) Slopes to receive fill. Where fill is to be placed 9 above the top of an existing or proposed cut or natural slope steeper than three horizontal to one vertical, the toe of the 10 fill shall be set back from the top edge of the slope a minimum distance as may be specifically recommended by a soils engineer or engineering geologist and approved by the City Engineer. Fills shall not toe out on slopes steeper than two 12 horizontal to one vertical. (g) Inspection and testing. The soil engineer shall 13 provide sufficient inspection during fill placement and compaction operations to determine that such work is being 14 performed in accordance with conditions of plan approval and requirements of this code. Continuous inspection shall be 15 provided by the soil engineer or his responsible representative for all fills that will exceed a vertical height or depth of 15 30 feet or result in a slope surface steeper than two horizontal to one vertical. Tests to determine density of the compacted 17 fill soils shall be made on the basis of not less than one test for each two-foot vertical lift of the fill but not less than 18 one test for each 1000 cubic yards of material placed. In addition, density tests at a point approximately one-foot below 19 the fill slope surface shall be made on the basis of not less than one test for each ten-foot vertical of slope height. All 20 such density tests shall be reasonably uniformly distributed within the fill or fill slope surface. Results of such testing and location of tests shall be presented in the soil- engineer's report. 22 23 24 27 28 -12- 1 11.06.110 Slope Location and Setbacks. Cut and fill slopes shall be set back from site boundaries and buildings 2 shall be set back from cut or fill slopes in accordance with Figure No. 70-A and as hereinafter provided. Setback dimensions 3 identified as "a" and "c", in Figure 70-A shall be horizontal distances measured perpendicular to the site boundary. 4 Setbacks "b", "d" and "e" shall be horizontal distances measured perpendicular to the indicated contour of the slope 5 face. Q The setback and other restrictions imposed by this section may be increased where unusual soil or geologic 7 conditions make such increase necessary for safety or stabil- ity or may be modified upon investigation and recommendation 8 by a soil engineer or geologist where such modification .will provide equivalent safety, stability and protection, and the 9 City Engineer so finds. 10 Where a fill slope is to be placed near the site boundary and the adjacent offiset property -is developed such grading, 11 special precautions shall be incorporated in the work as the City Engineer deems necessary to protect the adjoining pro- 12 perty from damage as a result of such grading. These precautions may include, but are not limited to: 13 (a) Additional setbacks (b) Provision for retaining or slough walls 14 (c) Mechanical or chemical treatment of the fill slope surface to minimize erosion 15 (d) Provisions for the control of surface waters. 16 /// /// /// /// 17 /// . . /// /// /// 18 /// /// /// /// 19 /// . /// /// /// 20 /// /// /// /// 21 /// ' /// /// /// 22 /// /// /// • /// 23 /// /// /// /// 24 /// /// /// /// 25 /// /// /// /// 26 /// /// /// /// 27 /// . /// /// /// 28 /// . /// — 13 — 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 Sire BOUNDARY "" DRAIN Ci/r SLOPE REQUIRED SETBACKS H (FEET) g CESS THAN 10 i' 10-ZO H/5 _3l_2.' H/5 H/5(3'MIN.)\rj-£.u n/o -* • y ^ ' ~' : .—^—— -^- 5viB20 4^nVJO^~lV'0('5'M/N.) • H/SQO'MA*:) H/5 (2O M4X.) H/IO** * 15' MAXIMUM** 4' MINIMUM, 10'MAXIMUM BulLD!N<J JL-TBACK F/GURE NO. 70-A 11. 06 .120 Drainage (a) General. The drainage structures and devices required by this Code shall be designed in accordance with recognized principles of hydraulics. (b) Disposal. All drainage facilities shall be designed to carry surface waters to the nearest practical street, storm drain, or natural watercourse approved by the City Engineer as a safe place to deposit such waters. If the drainage device discharges onto natural ground, rip-rap or a similar energy dissipator may be required. . (c) Site drainage. Graded building sites (building pads) shall have a minimum slope of one percent towards a public street or drainage structure approved to receive storm waters. A lesser slope may be approved by the City Engineer for sites graded in relatively flat terrain, or where special drainage provisions are made, when he finds such modification will not result in unfavorable drainage conditions. (d) Drainage terraces. Drainage terraces shall have a longitudinal, grade of not less than two percent nor more than twelve percent and a minimum depth of one foot at the flow line. There shall be no reduction in grade along the direction of flow unless the velocity of flow is such that slope debris will remain in suspension on the reduced grade. Such terraces shall be paved with concrete not less than three inches thick reinforced with 6" X 6"/#10 X #10 welded wire fabric or equivalent reinforcing. Drainage terraces exceeding eight feet in width need only be so -14- 1 paved for a width of eight feet provided such pavement provides a paven channel at least one-foot in depth. Downdrains or 2 drainage outlets shall be provided at approximately 300-foot intervals along the drainage terrace or at equivalent locations. 3 Downdrains and drainage outlets shall be of approved materials and of adequate capacity to convey the intercepted waters to the 4 point of disposal. (e) Overflow protection. Berms, swales or other devices 5 shall be provided at the top of cut or fill slopes to prevent surface waters from overflowing onto and damaging the face of 6 the slope. Special drainage provisions shall be made where a building or structure exists within five feet of the top of•a slope. 8 11.06.130 PIant ing of Slopes (a) Planting. The surface of all cut slopes more than five feet in height and fill slopes more than three feet in height shall be protected against damage by erosion by planting with grass or ground cover plants. Slopes 10 exceeding 15 feet in vertical height shall also be planted with shrubs, spaced at not to exceed ten feet on centers; or trees, 11 spaced at not to exceed 20 feet on centers; or a combination of shrubs and trees at equivalent spacings, in addition to the 12 grass or ground cover plants. The plants selected and planting methods used shall be suitable for the soil and climatic con- 13 ditions of the site. Plant material shall be selected which will produce a permanent planting coverage effectively controlling erosion. Consideration shall be given to deep-rooted plant material needing limited watering; to low-maintenance during 15 the lifetime of the project; to high root to shoot ratio (weight above ground parts versus root system); wind susceptibility and fire retardant characteristics. Planting need not be provided for cut slopes rocky in character and not subject to damage, by erosion and any slopes protected 18 against erosion damage by other methods when such methods have been specifically recommended by a soils engineer, engineering 19 geologist, or equivalent authority and found to offer erosion protection equal to that provided by the planting specified 20 in this section. (b) Irrigation. Slopes required to be planted by Subsection (a) shall be provided with an approved system of irrigation, designed to cover all portions of the slope and plans therefor shall be submitted and approved prior to installation. A func- tional test of the system may be required. 23 For slopes less than 20 feet in vertical height, hose 24 bibs to permit hand watering will be acceptable if such hose bibs are installed at conveniently accessible locations where 25 a hose no longer than 50 feet is necessary for irrigation. 26 The requirements for permanent irrigation systems may be . modified upon specific recommendation of a landscape architect 27 or equivalent authority that because of the type of plants selected, the planting methods used and the soil and climatic 28 conditions of the site, irrigation will not be necessary for -15- 17 18 *" ' the maintenance of the slope planting. (c) Release of bond. The planting and irrigation systems, required by this Section -shall be installed as soon as practical after rough grading. Prior to final approval of grading and before the release of the grading bond, the planting shall be well established and growing on the slopes. 11.06.140 Storm damage precautions. No grading permit shall be issued for work to be commenced between November 16 of any year and April 14 of the following year, unless the plans for such work include details of protective measures, including desilting basins or other temporary drainage or control measures, or both, as may be necessary to protect adjoining public and private property from damage by erosion, flooding, or the deposition of mud or debris which may originate from the site or result from such grading operations. If grading is begun prior to November 16, all protective measures shall be installed prior to November 16. If grading is betun on or after November 16, all protective measures shall be installed before grading is begun. All protective measures shall be maintained in good working order until April 14 of the succeeding year, where grading is done between November 16 and December 31, or until April 14 of the same year where grading is done between January 1 and April 14, unless their removal at an earlier date is approved by the C^ty Engineer. 11.06.150 Storm damage precautions - Incomplete vork. Where a grading permit is issued ana the work is commenced after April 15 and before October 1 of any year and the plans for such work do not include details of the protective measures described in Section 11.06.140, and it appears the: .. the grading and in- stallation of the permanent drainage devices as authorized by the permit will not be completed prior to November 1, then on or before October 1 the owner of the site on which the grading is being performed shall file or cause to be filed with the City Engineer revised plans which include details of the protective measures described in and in all other re_spects follow the provision of Section 11.06.140. The revised plans required by this Section shall be accom- panied by an application for plan checking services and plan checking fees as specified in Section 11.06.050 based on an assumed volume of material equal to five percent of the volume shown on the original permit. Storm damage precautions - effect of non- compliance. Should the owner fail to submit the plans or fail to provide the protective measures required by Sections 11.06.140 or 11.06.150 by the dates specified therein, it shall be deemed that a default has occurred under the conditions of the grading permit bond. Thereupon the City Engineer may enter the property for the purpose of installing, by City forces or by other means, the drainage and erosion control devices shown on the approved plans, or if there are no approved plans, as he may deem necessary -16 - 1 to protect adjoining property from storm damage, or the City Engineer may cause the owner of the site to be prosecuted as 2 a violator of this Code, or he may take both actions. V ; 3 ' 11.06.170 Grading Inspection and Supervision. (a)Controlled or regular grading. All grading involving 4 a fill intended to support structures, or the development of more than one lot or parcel of land, or in excess of 5000 cubic 5 yards of material, or grading where the City Engineer determines special conditions or unusual hazards exist shall be performed 6 under the observation of a civil engineer and shall be desig- nated "controlled grading". Grading other than controlled 7 grading shall be designated "regular grading". (b) Regular grading requirements. The City Engineer,' upon 8 notification from the permittee or his agent, shall inspect the grading at the following stages of the work and shall either 9 approve the portion then completed, or shall notify the permittee or his agent wherein it fails to comply with the requirements of 10 this Code: (1) Initial. When the site has been cleared of 11 vegetation, unapproved fills and scarified, benched or otherwise prepared, but before any fill is placed. 12 (2) Rough. When the grading has been completed and approximate final elevations have been established; drainage 13 terraces, swales and other drainage devices graded ready for paving; and berms installed at the top of slopes. 14 (3) Final. When grading has been completed; all drain- age devices installed; slope planting established and irrigation 15 systems installed. 15 In addition to the called inspections specified above, the City Engineer may make such other inspections as he may deem 17 necessary to insure compliance with the requirements of this Code. Investigations and reports by an approved soil testing 18 agency and/or geologist may be required in the discretion of the City Engineer at any stage of the grading. 19 (c) Controlled grading requirements. It shall be the responsibility of the grading engineer to observe the grading 20 operations and to coordinate site inspection and testing to assure compliance of the work with the approved grading plans, 21 the recommendations of the soils engineer geologist,•and the requirements of this Co.de. He shall submit periodic 22 progress reports as required by the City Engineer. At the completion of the various stages of the work specified in 23 Subsection (b) he shall verify in writing that the work is in compliance with this chapter. The verification for that portion 24 of the work concerning the preparation of the existing ground surface and placing and compaction of fills may be made by the 25 soils engineer for the soils testing agency. 25 The City Engineer may require sufficient inspections by the geologist to assure that all geological conditions have 27 been adequately considered and recommended corrective measures incorporated in the work. 28 /// /// -17- 1 All necessary reports, compaction data and soils engineer- ing or engineering geological recommendations made during the 2 grading operation shall be submitted to the City Engineer by the Grading Engineer. 3 (d) Prior to the release of bonds, the following require- ments shall be met: 4 (1) Private engineer. The private engineer shall be responsible for all surveying work necessary for proper 5 construction of the drainage and grading facilities. He shall inspect the site to insure that the embankment and cut slopes 6 are placed at their proper line and grade. 7 He shall, prior to the release of Bonds and surety, provide a written statement that in his professional opinion, all work 8 incorporated in the grading and drainage plans, authorized under the grading permit to include grading, drainage, and 9 construction of appurtenant structures, have been constructed to the lines and grades in substantial conformance with the 10 approved plans, and any approved revisions thereto. (2) Soil engineer. The soil engineer shall be 11 responsible for the testing of compaction and determination of stability of the various slopes. He shall, prior to the release 12 of the Bond and Surety, provide a written statement that inspections and tests were made by him, or under his observation, 13 and that in his professional opinion, all embankments have been compacted to City standards and in accordance with the Earthwork 14 Specifications for the project. (3) Landscape Architect. All landscaping work shall 15 be designed under the supervision of a Landscape Architect. How ver, a Registered Civil Engineer or Registered Architect may 16 be responsible for the inspection of all landscaping and irrigation required per the grading permit and plans if it is in 17 conjunction with a project he has been contracted to do. He shall prior to the release of the Bond and Surety, provide a 18 written statement that in his professional opinion all work incorporated in the landscape and irrigation plans authorized 19 under the permit have been constructed in accordance with the approved plans and revisions thereto. 20 (e) Requirements prior to building permits. Prior to the release of building permits for any given lot or lots, the 21 private engineer shall submit a'Statement as evidence that rough grading for land development has been completed! within 22 standard tolerance in accordance with the approved plans, and that all embankments and cut slopes and pad sizing are as shown 23 on the approved plans. The Soils Engineer will submit a state- ment that all embankments, under his direction, have been 24 completed to an indicated 90 percent relative density. (f) Notification of Noncompliance. If, in the course of 25 fulfilling his responsibility under this Chapter, the supervis- ing grading engineer or soils engineer finds that the work is 26 not being done in conformance with this Chapter or the plans approved by the City Engineer, or in accordance with good 27 accepted practices, he shall immediately notify the person in charge of the grading work and the City Engineer, in writing, 28 of the non-conformity and of the corrective measures to be taken. -18- 1 2 3 verification. 4 11.06.180- Responsibility of Permittee. (a) Compliance 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 (g) Violation. It is a violation of this code for any person to verify to the satisfactory completion of work according to this chapter if such work is subsequently found by the City Engineer to have been in substantial noncompliance with the approved design or code requirement at the time of with plans and code. The permittee, his agent, contractor or employee, shall carry out the proposed work in accordance with the approved plans and specifications and in compliance with all the requirements of this code. (b) Inspections. In performing regular grading it shall be the responsibility of the permittee to notify the City ' Engineer at least one working day in advance so that the inspec- tions required by Section 11.06.170 can be made. (c) Protection of utilities. During grading operations the permittee shall be responsible for the prevention of damage to any public utilities or services. (d) Protection of adjacent property. The permittee under the grading permit is responsible for the prevention of damage to adjacent property and no person shall excavate on land sufficiently close to the property line to endanger any adjoin- ing public street, sidewalk, alley or other public or private property without supporting and protecting such property from settling, cracking, or other damage which might result. (e) Temporary Erosion Control. The permittee shall put into effect anc maintain all precautionary measures necessary to protect adjacent water courses and public or private property from damage by erosion, flooding, and deposition of mud or debris originating from the site. 11.06.190 Reports Required. (a) General. The Cxty Engineer may require the following reports: (1) A final report by the Supervising Grading Engineer which shall state that all grading, lot drainage and drainage facilities have been completed and the slope planting and irrigation systems installed in conformance with the approved plans and the requirements of this Code. An as-built grading plan shall be submitted showing the as-built grades and drainage facilities. (2) A report by the Soils Engineer which shall include the recommended soil bearing capacity, a statement as to the expansive qualities of the soil, and summaries of field and laboratory tests. The locations of such tests and the limits of the compacted fill shall be shown -on a final plan which shall also show by plan and cross section the location of any rock disposal areas and/or buttress fills if such were involved in the grading. (3) A report by the engineering geologist which shall be based on an as-built geologic map which report shall include specific approval of the grading as affected by geological factors, Where necessary, such report shall include geologic cross sections and recommendations regarding the location of buildings or sewage disposal systems. 49- 1 2 3 4 5 filed with the City Clerk. 6 11.06.210 Depositing Earth, Sand or Gravel, etc., Upon 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 28 (b) Final Approval. Final approval of grading shall not be given until all maps and reports that may be required by Subsection (a) of this Section have been submitted and approved. 11.06.200 Appeals. An applicant may appeal to the City Engineer's denial of, or the conditions of approval of, an application for a permit^ to the City Council within ten working days after said decision. Appeals shall be in writing and shall state the specific nature of the appeal. Appeals shall be Public or Private Property. (a) Where prohbited. No person shall dump, move or place any earth, sand, gravel, rock, stone or other graded, filled or excavated material, or leave any bank, slope or other excavated surface unportected so as to cause any of said materials to be deposited upon or to roll, blow or wash upon or over the premises of another without the express consent of the owner of each such premises so affected or upon or over any public property, place or way. Such consent shall be in writing and in a form acceptable to the City Engineer. (b) Spilling, etc., loads. No person shall, when hauling any earth, sand, gravel, rock, stone or other excavated material over any place, allow such materials to blow or spill over and upon such street, alley or place or adjacent private property. (c) Removal of deposits from public places. When, due to a violation of si.-.bsection (a) of this section, any earth, sand, gravel, rock, stone or other excavated material is caused to be deposited upon or to roll, f]ow or wash upon any public place or way, the person responsible therefor shall cause the same to be removed from such public place or way within thirty-six hours. In the event it is not so removed, the City Engineer shall cause such removal and the cost of such removal by the City Engineer shall be paid to the City by the person who failed to so remove the material. 11.06.220 False statements in application or plans. No person who prepares or signs any application or plans or drawings shall willfully make any false statement or furnish false data therein or thereon. 11.06.230 Violations. (a) Any grading commenced or done contrary to the provisions of this chapter, or other violation of this chapter, shall be, and the same is hereby declared to be, a public nuisance. Upon order of the City Council, the City Attorney shall commence necessary proceedings for the abatement of any such public nuisance in the manner provided by law. Any failure, refusal, or neglect to obtain a permit as required by this chapter shall be prima facie evidence of the fact that public nuisance has been committed in connection with any grading commenced or done contrary to the provisions of this chapter. 27 " -20- •(b) In the event that grading is commenced without a permit, the City Engineer shall cause such work to be stopped until a permit is obtained. The permit fee, in such instance, shall then be double that which would normally be required. The payment of 3 such double fee shall not, relieve any person from fully complying with the requirements of this chapter in the performance of the 4 work. Such fee shall not be construed to be a penalty, but of enforcement of the provisions of this chapter in such cases. 5 (c) Each person, firm or corporation who commences or does any grading contrary to the provisions of this chapter, or other- 6 wise violates the provisions of this chapter, is guilty of a misdemeanor. Every day during any portion of which any violation 7 of any provisions of this title is committed, continued or per- mitted by such person, firm or corporation, shall be deemed a 8 separate violation and shall be punishable as provided in this title and in Section 1.08.010 of this code. 9 EFFECTIVE DATE: This ordinance shall be effective thirty days 10 after its adoption, and the City Clerk shall certify .to the 11 adoption of this ordinance and cause it to be published at least 12 once in the Carlsbad Journal within fifteen days after its adoption 13 INTRODUCED AND FIRST READ at a regular meeting of the Carlsbad 14 City Council held on the 5th daY of A'-gust , 1980. 15 PASSED AND ADOPTED at a regular meeting of said City Council 16 held on the 19th day of August , 1980 by the following vote, 17 to wit; 18 AYES: Council Members Packard, Casler, Anear, Lewis and Kulchin 19 NOES: None 20 ABSENT: None 21 RONALD C. PACKARD, Mayor 22 ATTEST: 23" 24 . ^ • r M 11 h~~d_ / /-^ r/25 ALETHA L. RAUTENKRANZ7~City Clerk 26" 27 28 -21-