1 2 3 4 5 6 7 8 9 10 CITY OF COVINGTON ORDINANCE NUMBER 2006-03 AN ORDINANCE OF THE CITY OF COVINGTON AMENDING THE COVINGTON CODE OF ORDINANCES, APPENDIX A, SUBDIVISIONS, ARTICLE III IMPROVEMENT STANDARDS, FOR ZONING CASE 05-34 TX WHEREAS, the Planning and Zoning commission of the City of 11 Covington has recommended has recommended that certain additions and/or 12 deletions have been suggested to Article III, Improvement Standards; and WHEREAS, the City Council has held its public hearing in 13 14 accordance with law; and WHEREAS, the Covington City Council deems these amendments 15 16 appropriate to protect the health, safety and welfare of the citizens of Covington. 17 NOW, THEREFORE, be it ordained by the City Council of the City 18 of Covington, at its regular session convened, that Article III, Improvement 19 Standards, be amended by adding and deleting the following: 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 Sec. 3.2. Required improvements. 3.807. Drainage plan. The purpose and intent of this section is to require a drainage plan to be stamped and certified by a civil engineer licensed by the State of Louisiana for construction of residential, commercial and industrial developments, with the goal of reducing post-development peak runoff to that which existed prior to development based on a 25-year storm event. The plan shall be prepared using a survey of the property that indicates the property lines and the topographic features. The survey shall be stamped and certified by a surveyor licensed in the State of Louisiana. The number of elevations indicated on the survey will be sufficient to accurately depict the existing conditions of the property. The survey shall be acceptable to the city engineer. Elevations on the survey shall be referenced to a published benchmark. 1. All residential uses in flood zone A, all residential subdivisions in flood zones B and C and all, commercial and industrial uses that require a building permit in any flood zone shall require a drainage plan with the permit application. Requirements for such plan are set forth below herein. Said plan shall be forwarded to the city for review and approval before the issuance of a building permit. 2. It shall be the responsibility of the developer and design engineer to create a site development plan that will complement the drainage plan utilizing site design criteria so as to result in the reduction of peak runoff from post-development conditions. 3. The drainage plan shall be stamped and certified by an engineer licensed to practice civil engineering in the State of Louisiana and shall meet the following criteria: a. Parcels five acres or less less than five acres in size shall not be required to provide on-site detention systems. The developer may be allowed, solely at the discretion of the City Engineer, to pay in lieu of on-site detention systems, a drainage impact fee of $3,600.00 per acre to the city. Such fee will be dedicated for the construction of offsite stormwater detention systems as identified in the city's master drainage plan. b. Parcels five acres and larger shall be required to reduce post-development peak runoff to that which existed prior to development with on-site detention systems required. 4. A combination of detention methods may be utilized to meet the criteria as established 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 29 30 31 32 33 34 Ordinance 2006-03 Drainage Zoning Case 05-34TX Page 2 of 3 above. Off-site detention facilities may be utilized if approved by the city. 5. Documents required for drainage plan review. In order to expedite the drainage plan review for all residential, commercial, industrial and institutional developments, the City of Covington requests the following documents be provided. a. A vicinity map indicating the location of the proposed project. b. A pre-development drainage plan (existing conditions). c. Identify fill area(s) and the associated fill depth(s). d. A post-development drainage plan (proposed conditions). e. If the outfall needs to discharge to the ditch or detention system, the invert elevations of associated influent and effluent culvert(s) and bottom elevation of accepted detention system shall be provided. f. If driveway culvert needs to be installed at the state highway ditch, written approval from the Louisiana Department of Transportation and Development shall be provided prior to the city approval. g. A hydrological analysis of both pre-development and post-development runoff shall be provided. The hydrological analysis shall meet applicable city requirements. h. The city reserves the right to withhold the certificate of occupancy in order to allow for a final inspection. 6. All institutional uses that require a building permit shall provide a drainage plan with the permit application. The drainage plan shall be stamped and certified by an engineer licensed to practice civil engineering in the State of Louisiana and shall meet the criteria as set forth in Chapter 5, Section 5.61 entitled "Fill Regulations." 7. The Planning Department of the City of Covington, acting through the City Planner, has the discretion to exempt single buildings or single lots of one acre or less from the detention requirements, drainage impact fee requirements and site plan requirements, where the City Engineer advises there to be no expected drainage impact. 3.808. Detention ponds. Where stormwater detention ponds are so constructed as to allow for their use as parks or playgrounds during dry conditions, the planning commission may accept such ponds as complete or partial fulfillment of the public use set aside requirement. 35 Whereupon this ordinance was submitted to a vote and resulted in the 36 following: 37 YEAS: 38 ABSTAIN: 0 6 NAYS: 0 ABSENT: Faust 39 40 PASSED AND ADOPTED this 7th day of February 2006. 41 42 43 44 45 _______________________________ PATRICIA CLANTON PRESIDENT OF THE COUNCIL 46 47 48 49 50 51 52 ______________________________ LYNNE H. MOORE CLERK TO THE COUNCIL Presented to the Mayor this 8th day of February 2006, at 4:00 o’clock P. M. Ordinance 2006-03 Drainage Zoning Case 05-34TX Page 3 of 3 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 ______________________________ LYNNE H. MOORE CLERK TO THE COUNCIL Approved _X__ or Vetoed ___ by the Mayor on this 8th day of February 2006. ______________________________ MAYOR CANDACE WATKINS Received from the Mayor this 9th day of February 2006, at 8:45 o’clock A.M. ______________________________ LYNNE H. MOORE CLERK TO THE COUNCIL