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04-09-19-Ordinance-Amending the Subdivision Regulations-04/15/2019ORDINANCE # 04-09-19 AN ORDINANCE OF THE CITY COUNCIL OF THE CITY OF SANGER, DENTON COUNTY, TEXAS, AMENDING CHAPTER 10 SUBDIVISION REGULATION EXHIBIT A SUBDIVISION ORDINANCE SECTION 6.02B PAVEMENT THICKNESS REQUIREMENTS; PROVIDING FOR THE REPEAL OF ALL ORDINANCES IN CONFLICT; PROVIDING FOR A SEVERABILITY CLAUSE; PROVIDING FOR A PENALTY OF FINE IN ACCORDANCE WITH SECTION 1.109 OF THE CODE OF ORDINANCE FOR VIOLATIONS; AND PROVIDING FOR AN EFFECTIVE DATE. WHEREAS, it is the intent of the City Council to protect the public health, safety, and welfare; and WHEREAS, as part of the review of City Ordinances, it is necessary to amend certain Chapters of the Code to be consistent with best construction practices; and NOW, THEREFORE, BE IT ORDAINED BY THE CITY COUNCIL OF THE CITY OF SANGER, TEXAS: SECTION 1. That Chapter 10 SUBDIVISION REGULATION Exhibit A SUBDIVISION ORDINANCE Section 6: IMPROVEMENTS 6.02 Street Paving — Concrete B. PAVEMENT THICKNESS REQUIREMENTS is hereby amended revising all of the following Articles and Sections within said Chapter to read as follows: B. Pavement Thickness Requirements The following specifies minimum standards required for the pavement and subgrade design for roadways and alleys within the City. These minimum standards are not intended to replace the professional judgment of the Geotechnical Engineer for any specific project. The standards may need to be expanded or modified on a case by case basis as determined necessary and appropriate by the Geotechnical Engineer, and as approved by the City Engineer. All roadways and alleys shall have a geotechnical investigation and pavement and subgrade design performed. Results of the geotechnical investigations, engineering analyses, and recommendations shall be presented in a Geotechnical Report for Roadways ("Report'). The Report and any subsequent re-evaluations or supplemental reports shall be signed and sealed by a Licensed Professional Engineer in the State of Texas trained and qualified to provide geotechnical engineering analysis and pavement and subgrade design recommendations. (1) Residential/Local Street, Residential/Estate Street and Alley Construction The subdivider shall, at his own cost and expense, pay for constructing all residential streets and alleys within his subdivision and one-half (1/2) of all existing and/or proposed perimeter streets. Monies for the construction of the one-half (1/2) street shall be placed in an escrow account if the construction of the street is to be deferred to a later date. A six inch (6") thickness of three thousand six hundred (3,600) p.s.i. reinforced concrete pavement on a compacted sub -base shall be required. All steel reinforcing shall be deformed No. 3 bars on eighteen inch (18") center both ways or No. 4 bars on twenty-four inch (24") centers both ways. Where the plasticity index of the soil is twelve (12) or greater, stabilization of the sub - grade, eight inches (8") thick with six percent (6%) hydrated lime by weight, shall be required. Compaction of the lime stabilized sub -grade shall be according to the Standard Specifications, Division 4, Item 4.6., [Section] 4.6.4(d). Unless otherwise approved by City, the concrete shall be placed using either forms or slipform paver. Concrete strength shall be increased to four thousand (4,000) p.s.i. for hand poured concrete. Any proposed pavement section of lesser thickness or alternate materials shall be fully documented by the design engineer to substantiate the fact that such alternate will provide an equivalent capacity for the pavement noted above and must be approved by the city. (2) Collector Commercial or Industrial Street and Alley Construction The subdivider shall, at his own cost and expense, pay for constructing all streets and alleys within his subdivision and one-half (1/2) of all existing and/or proposed perimeter streets. Monies for the construction of the one-half (1/2) street shall be placed in an escrow account if the construction of the street is to be deferred to a later date. Collector streets and alleys shall, at a minimum, be designed and constructed with eight -inch (8") thickness of four thousand (4,000) p.s.i. reinforced concrete pavement on a compacted sub -base. All steel reinforcing shall be deformed No. 4 bars on eighteen inch (18") centers both ways. Where the plasticity index of the soil is twelve (12) or greater, stabilization of the sub- base with an eight inch (8") thickness of six percent (6%) hydrated lime by weight will be required. Compaction of the lime stabilized sub -grade shall be according to the Standard Specifications, Division 4, Item 4.6., Section 4.6.4(d). Unless otherwise approved by City, the concrete shall be placed using either forms or slipform paver. Concrete strength shall be increased to four thousand five hundred (4,500) p.s.i. for hand poured concrete. Any proposed pavement section of lesser thickness or alternate materials shall be fully documented by the design engineer to substantiate the fact that such alternate will provide an equivalent capacity for the pavement noted above and must be approved by the city. (3) Major or Secondary Thoroughfare Construction On roadways, adjacent to the proposed subdivision, that are designated to be major or secondary thoroughfares (except Class A Loop Highway), the subdivider shall be required to construct, at his own cost and expense, one-half (1/2) of the street section, up to a width of twenty-four feet (24% measured to face of curbs, with integral curbs on each side. Where thoroughfares traverse a subdivision, the subdivider shall be required, at his own cost and expense, to construct a twenty-four foot (24') wide section on each side of the roadway. Thoroughfares shall be designed and constructed with a nine inch (99") thickness of four thousand (4,000) p.s.i. reinforced concrete pavement on a compacted sub -base. All steel reinforcing shall be deformed No. 4 bars at eighteen inch (18") centers both ways. Where the plasticity index of the soil is twelve (12) or greater, stabilization of the sub - grade, ten inches (6 10") thick with six percent (6%) hydrated lime by weight, shall be required. Compaction of the lime stabilized sub -grade shall be according to the Standard Specifications, Division 4, Item 4.6., Section 4.6.4(d). Unless otherwise approved by City, the concrete shall be placed using either forms or slipform paver. Concrete strength shall be increased to four thousand five hundred (4,500) p.s.i. for hand poured concrete. Any proposed pavement section of lesser thickness or alternate materials shall be fully documented by the design engineer to substantiate the fact that such alternate will provide an equivalent capacity for the pavement noted above and must be approved by the city. SECTION 2. All ordinances or parts of ordinances in conflict herewith are, to the extent of such conflict, hereby repealed. SECTION 3. It is hereby declared to be the intention of the City Council that the sections, paragraphs, sentences, clauses, phrases and words of this Ordinance are severable and, if any word, phrase, clause, sentence, paragraph, or section of this Ordinance shall be declared unconstitutional by the valid judgment or decree of any court of competent jurisdiction, such unconstitutionality shall not affect any of the remaining portions of this Ordinance, since the same would have been enacted by the City Council without the incorporation in this Ordinance of any such unconstitutional word, phrase, clause, sentence, paragraph, or section. SECTION 4. Any person, firm or corporation who shall violate any of the provisions of this article shall be guilty of a misdemeanor and upon conviction shall be fined in accordance with the general penalty provision found in The Code of Ordinances, Section 1.109 General Penalty for Violations of Code. SECTION 5. This ordinance will take effect immediately from and after its passage and the publication of the caption, as the law and Charter in such cases provide. DULY PASSED, APPROVED AND OPTED by the City Council of the City of Sanger, Texas, on this /j day of APPROVED: Thomas E. Muir, Mayor ATTEST: •..om i Cheryl ri , i Secretary