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HomeMy WebLinkAboutORD 04.14.1975 - SubdivisionCITY OF GEORGETOWN TEXAS ORDINANCE Requirements for Subdivisions APRIL 1975 CITY OF GEORGETOWN., TEXAS OFFICIALS Joe E. Crawford - Mayor Dee W. Scott - Mayor Pro -Tem. Harry Gold - Councilman J. D. Wininger - Councilman John Doerfler- Councilman W. C. Shell - Councilman Leo Wood - City Manager W. L. Walden - City Secretary Thomas G. Sams - Cheif Inspector Tom Harrison - Water and Sewer Supt. PLANNING a ZONING COMMISSION G. E. Almquist Jr. Chairman Lee Fulkes Member A. P Prude Member Fred Hilgeman Member Roy Lierman Member INDEX SUBJECT PAGE NUMBER Legal Citations 1 Section 1 General 3 Section 2 Definitions 3 Section 3 Purpose, Authority and Jurisdiction 5 Section 4 Procedure 7 4.01 Preliminary Plat 7 1. Scale 7 2. Existing Features Inside Subdivision 8 3. Existing Features Outside Subdivision 8 4. New Features Inside Subdivision 9 5. Key Map 9 6. Title 10 7. Subdivision 10 8. Approval 10 4.02 Final Plat 11 1. Sheet Size 11 2. Existing Features Inside Subdivision 12 3. Existing Features Outside Subdivision 13 4. Streets, Alleys, Easements 14 5. Lots and Blocks 14 6. Reservations 15 7. Monuments and Control Points 15 8. Key Map 15 9. Title 15 10. Dedications and Certificates 16 11. Special Restrictions 16 12. Tax Receipt 16 13. Submission 16 14. Approval 16 15. Time of Submission of Plans and Specifications 17 Section 5 Design Standards 17 5.01 Streets 17 1. Conformity to Street Plan 17 2. Relation to Adjoining Streets 1$ 3. Street Jogs 18 4. Larqe Lot Subdivisions 24 5. Through Traffic 18 6. Topography 18 7. Street Widths 19 8. Street Alignment 19 9. Major Street Curves 20 10. Secondary Street Curves 20 11. Local Street Curves 20 12. Reverse Curves 20 20 13. Vertical Curves 27 14. Cul -De -Sacs 20 15. Street Intersections 21 16. Half -Streets 22 22 17. Reverse Strips 23 18. Street Names 23 19. Private Streets 5.02 Lots 23 1. Residential Purpose 23 2. Size 23 3. Minimum Width 24 4. Minimum Depth 24 5. Minimum Area 24 6. Corner Lots 24 24 7. Lot Shape 26 8. Lot Lines 9. Lot Facing 26 10. Lot Numbering 26 11. Driveway Restrictions 27 5.03 Blocks 27 1. Length 27 2. Width 28 3. Numbering 28 5.04 Building Lines 28 1. Front Street 28 2. Side Street 28 3. Side and Rear 28 5.05 Alleys 28 1. Width 28 2. Cut Offs 29 3. Dead -End 29 4. Required 29 5.06 Easements 29 1. Size 29 2. Use 30 5.07 Improvements 30 1. Monuments 30 2. Sidewalks 31 3. Other Improvements 31 5.08 Reservations 31 1. Permitted Purposes 31 2. Designation on Plat 32 3. Schools 32 5.09 Suburban Subdivisions 32 5.10 Variances 33 5.11 Penalty for Violating This Ordinance 33 5.12 Saving Clause 34 Engineering and Construction Standards 35 Streets 35 Alignment 35 Grades 35 Width 36 Pavement Design 36 Curb and Gutter 37 Alleys 38 Pavement Type 38 Pavement Width 38 Drainage and Storm Sewers 38 Size 43 39 Design Storm 39 Runoff Computations 39 Runoff Coefficient 39 Sizing of Sewers 40 Inlets 40 Ditches 41 Design 41-43 Water Lines 43 Location 43 Pipe 43 Fittings 44 Fire Hydrants 44 Pressure Test 44 Disinfection 45 Sanitary Sewers 45 Pipe Material 45 Pipe Size 46 Pipe Joints 46 Location 46 Grades 46 Infiltration 47 Lift Stations 47 Force Mains 47 utility Services 48 Construction 48 Water Service 48 Sewer Service 48 Stub Markers 49 Utility Extensions 49 Electric Service by City of Georgetown 49 Ordinance Approval and Signatures 49 GEORGETOWN, TEXAS SUBDIVISION ORDINANCE AN ORDINANCE PRESCRIBING RULES AND REGULATIONS GOVERNING PLATS, PLANS AND SUBDIVISIONS OF LAND WITHIN THE INCORPORATED AREA OF GEORGETOWN, TEXAS, HEREIN DEFINED AS THE "CITY"; CONTAINING CERTAIN DEFINITIONS; PROVIDING FOR A PRELIMINARY PLAT, A FINAL PLAT, AND PROVIDING FOR FINAL APPROVAL OF SUBDIVISIONS BY SECTIONS; PRESCRIBING REGULATIONS FOR STREETS, SIDEWALKS, ALLEYS, SANITARY UTILITIES, AND COMMUNITY FACILITIES: Providing for a penalty of not more than two hundred ($200) dollars for each violation thereof; repealing all conflicting ordinances; providing a savings clause; and providing an effective date. Whereas, under the provisions of the Constitution and laws of the State of Texas, including particularly Chapters 231, Acts of the. 40th Legislature, Regular Session, 1927, as heretofore or hereafter amended (complied as Articles 974a, VACS), and the provisions of Section 4 of the Municipal Annexation Act (complied as Article 970a), as heretofore or hereafter amended, hereafter every owner of any tract of land situated within the City of Georgetown who may hereafter divide the same in two (2) or more 1 tracts described by metes and bounds or otherwise for the purpose of laying out any subdivision of such tract of land or any addition to said City; or for laying out suburban lots or building lots, or any lots, and purchasers or owners of lots fronting thereon or adjacent thereto, are required to submit a plat of such subdivision or addition for approval by the Planning and Zoning Commission of the City of Georgetown; and the City Council of the City of Georgetown. Whereas, the rules and regulations of the City established by ordinance, governing plats and subdivisions of the land, in the corporate limits of the City of Georgetown are hereby extended to and shall apply to all of the area under the extraterritorial jurisdiction of said City, as provided for in the Municipal Annexation Act, enacted by the State of Texas and which appears as Article 970a, Vernon's Annotated Civil Statutes. NOW THEREFORE, BE IT ORDAINED BY THE CITY COUNCIL OF THE CITY OF GEORGETOWN, TEXAS On and after the passage of this Ordinance, any person, firm or corporation seeking approval of any plat, plan or replat of any subdivision of land within the City of Georgetown, Texas 0 and -its legally established extraterritorial jurisdiction shall be required to comply with the requirements of this Ordinance before such approval may be granted, to -wit: SECTION 1 GENERAL These regulations shall govern every person, firm, association or corporation owning any tract of land within the corporate limits and extraterritorial jurisdiction of the City of Georgetown who proposes to divide the tract into two or more parts for the purpose of laying out any subdivision of land or any addition to said City, or for laying out suburban lots or building lots, or any lots, streets, alleys, parks or other portions intended for public use, or the use of purchasers or owners of lots fronting thereon or adjacent thereto. SECTION 2 DEFINITIONS 2.01 City or the City shall mean City of Georgetown 2.02 Subdivision shall mean the division of a tract or parcel of land into two or more parts or lots for 3 the purpose, whether immediate or future, of sale or building development or transfer of ownership, and shall include re -subdivision. 2.03 Re -subdivision shall mean the division of an existing subdivision, together with any change of lot size therein, or with the relocation of any street lines. 2.04 The word "Shall" shall be deemed as mandatory. The word "May" shall be deemed as permissive. 2.05 Plat shall mean a map or chart of the subdivision. It shall include plan, plat or replat, in both singular and plural. 2.06 Commission shall mean the City Planning and Zoning Commission. 2.07 Developer shall mean the owner of proposed subdivision. 4 SECTION 3 PURPOSE, AUTHORITY AND JURISDICTION 3.01 Under the authority of Article 974a of the Revised Civil Statutes of the State of Texas, which article is hereby made a part of these regulations, the Planning and Zoning Commission of the City of Georgetown does hereby adopt the following regulations to hereafter control the subdivision of land within the corporate limits of the City of Georgetown and in the unincor- porated areas lying within one mile (1) of the City limits of Georgetown, in order to provide for the orderly development of the areas and to secure adequate provision for traffic, light, air, recreation, transportation, water, drainage, sewage, and other facilities. 3.02 As used herein, the term "subdivision" shall mean the division of a tract or parcel of land into two (2) or more lots for the purpose, whether immediate or future, of sale or building development, and shall 5 include resubdivision. "Resubdivision" shall mean any change in the division of any existing subdivision or any change in lot size therein, or the relocation of any street lines. 3.03 Any owner of land located inside of or within one (1) mile of the corporate limits of the city of Georgetown wishing to subdivide such land shall submit to the Planning and Zoning commission a plan of subdivision which shall conform to the minimum requirements set forth in these regulations. An owner subdividing his land into parcels of not less than 5 acres each and not involving new streets shall be exempt from these requirements. Any owner subdividing his land into parcels of 1 acre or more for residential or commercial purposes shall be subject to all regulations set forth in this ordinance except as set forth in SECTION 5, PARAGRAPH 5.09. 3.04 No subdivision plat shall be filed or recorded, and no lot in a subdivision inside of or within one (1) mile of the corporate limits of Georgetown shall R be improved or sold, until the plat shall have been approved by the Planning and Zoning Commission. The City shall have the authority to prohibit the installation of public utilities in unapproved subdivisions and to prohibit the issuance of building permits for structures on lots abutting on unapproved streets. 0 SECTION 4 PROCEDURE 4.01 PRELIMINARY PLAT A preliminary plat of any proposed subdivision, prepared by a registered engineer or licensed public surveyor and bearing his seal, shall be submitted to the Planning Commission for approval before the sub- divider proceeds with the final plat for record. 1. This preliminary plat shall be drawn to a scale of one hundred (100) feet to the inch. 2. The preliminary plat shall contain the following information: M Existing Features Inside Subdivision. a. The existing boundary lines of the land to be subdivided. Boundary lines shall be drawn sufficiently wide to provide easy identification. b. The location of existing water courses, railroads, and other similar drainage and transportation features. c. The location and width of existing streets, alleys, easements, building and structures. d. Topographical information with contour lines at two (2) foot intervals. 3. Existing Features Outside Subdivision. a. The name and property lines of adjoining property owners. b. The name and location of adjacent subdivisions, streets, easements, pipe lines, water courses, etc. All lines outside of subdivision boundaries to be dashed. F 4. New Features Inside of Subdivision. a. The proposed name of the subdivision. b. The location, R.O.W. width, and names of proposed streets. c. The approximate width and depth of all lots. If the side lines are not parallel, the approximate distance between them at the building line and at the narrowest point should be given. d. The location of building lines, alleys and easements. e. The location and approximate size of sites for schools, churches, parks, and other special land uses. f. The approximate acreage of the property to be subdivided. 5. Key Map. A key map showing relation of subdivision to well-known streets in all directions to a distance of at least one (1) mile. V, 6. Title, Etc. The date, scale, north point and title under which the plat is to be recorded, with the name of the owner and engineer or licensed surveyor platting the tract. 7. Submission. The Planning and Zoning Commission and City Manager shall be furnished with three (3) legible prints of the preliminary plat and with three (3) copies of a letter of transmittal stating briefly the type of street surfacing, drainage, sanitary facilities, and water supply proposed, and the name and address of the owner or agent and engineer, ten (10) days or more before the regular Planning Commission meeting. These documents shall be filed in the office of the City Secretary in the City Hall. 8. Approval. The Planning and Zoning Commission shall approve, conditionally approve or disapprove within thirty (30) days any preliminary plat submitted to it. Approval of the preliminary plat shall not constitute final acceptance of the final plat. 10 Preliminary approval will expire six (6) months after the approval by the Planning Commission of the preliminary plat or of final sections thereof, except that if the subdivider shall apply in writing prior to the end of such six (6) month period, stating reasons for needing the extension, this period may be extended for another six (6) months but not beyond a total of one (1) year. 4.02 FINAL PLAT After approval of a preliminary plat by the Planning and Zoning Commission, a final plat, prepared by a registered engineer or licensed surveyor and bearing his seal,shall be submitted to said Planning and Zoning Commission, prior to filing with County Clerk,by filing in the office of the City Secretary. Such plat shall have all changes and alterations made on it that were required on the previously submitted preliminary plat. 1. Sheet Size and Scale. All final plats shall be drawn in india ink on tracing cloth or plastic tracing sheets 1811 x 24" ( eighteen inches by twenty-four inches) and to 11 a scale of one (1) inch equals one hundred (100) feet. Where more than one (1) sheet is required, an index sheet of maximum size 18" x 24" (eighteen inches by twenty- four inches) shall be filed showing the entire subdivision. Where an area to be developed can be drawn on a sheet one-half (1/2) size or less with the scale of the drawing remaining one (1) inche equals one hundred (100) feet, a sheet 24" x 15" (twenty- four by fifteen inches) may be used. 2. The final plat shall contain the following information. Existing Features Inside Subdivision. a. The existing boundary lines with accurate distances and bearings of the land to be subdivided. Boundary lines shall be drawn sufficiently wide to provide easy identification. b. The location of existing water courses, railroads, and other similar drainage and transportation features. c. True bearings and distances to the nearest established street lines, official monuments, or subdivision 12 corner, which shall be accurately described on the Plat. d. The location and width of existing streets, alleys, easements, R.O.W., buildings and structures to be retained. e. An accurate location of the subdivision in reference to the deed records of the County which shall include the volume and page of the deed of the property to be subdivided. 3. Existing Features Outside Subdivision. a. The name and property lines of adjoining subdivisions and of the adjoining property owners, together with the respective plat or deed references. b. The name and location of adjacent streets, alleys, easements, water courses, etc. All lines outside of subdivision boundaries to be dashed. 13 4. Streets, Alleys, Easements. The lines and names of all proposed streets or other ways or easements to be dedicated to public use, with the following engineering data: a. For Streets. Complete curve data (Delta, Length, Radius, Tangent, Point of Curve, Point of Reverse Curve, Point of Tangent) shown on the centerline or on each side of street. Length and bearings of all tangents. Dimensions from all angle points and points of curve to an adjacent side lot line. b. For Water Courses and Easements. Distances to be provided along the side lot lines from the front lot line or the high bank of a stream. Traverse line to be provided along the edge of all large water courses in a convenient location, preferably along a utility easement if paralleling the drainage easement or stream. 5. Lots and Blocks. The lines and numbers of all proposed lots and blocks with complete bearings and dimensions for front, rear and side lot lines. The surveyor shall certify that all lots have an area of 6000 sq.ft.or more. 14 6. Reservations. The use and property dimensions of all special reservations, including sites for schools, churches, and parks. 7. Monuments and Control Points. 1. The description and location of all permanent survey monuments and control points. 2. Suitable primary control points to which all dimension, bearings and similar data shall be referred. Dimensions shall be shown in feet and decimals of a foot. 8. Key Map. A key map showing relation of subdivision to well-known streets in all directions to a distance of at least one (1) mile. 9. Title, Etc. The date, scale, north point and subdivision title, name and address of subdivider, name, address, and seal of engineer or licensed surveyor. 15 10. Dedications and Certificates. Such dedications and certificates as are applicable. 11. Special Restrictions_. Where restrictions of use of land, other than those given in these regulations are to be imposed by the subdivider, such restrictions shall be placed on the final plat or on a separate instrument filed with the plat. 12. Tax Receipt. A certificate showing that all City taxes if any have been paid is to be submitted concurrent with the final plat. 13. Submission. The Planning and Zoning Commission and the City Manager shall be furnished with three (3).legible prints and the original tracing of the final plat fourteen (14) days or more before the regular Planning and Zoning Commission meeting. These documents shall be filed in the office of the City Secretary in the City Hall. 14. Approval. Final approval will expire one (1) year after Planning & Zoning Commission action granting approval of any plat unless the plat has been filed for record,except that,if the subdivider shall apply in writing 16 prior to the end of such one (1) year period, stating reasons for needing the extension, this period may at the discretion of the Commission be extended for another year but not beyond that period. 15. Plans and Specifications shall be submitted after approval of final plat and 30 days prior to accepting bids on any construction. SECTION 5 GENERAL REQUIREMENTS AND DESIGN STANDARDS 5.01 STREETS 1. Conformity to Major Street Plan. The width and location of streets shall conform to such Major Street Plan as the Planning and Zoning Commission may have adopted, both as to horizontal and vertical alignment and right-of-way widths. 2. Relation to Adjoining Street System. The proposed street system shall extend all existing major streets and such existing secondary and local -access streets as may be desirable for convenience of cir- culation. Where possible, the width and the 17 horizontal and vertical alignment of extended streets shall be preserved. 3. Street Jogs. Where off -sets in street alignment are, in the opinion of the Planning and Zoning Commission, unavoidable, such off -sets may be employed provided the distance between center lines is not less than one hundred twenty-five (125) feet. 4. Large -Lot Subdivisions. If the lots in the proposed subdivision are large enough to suggest resubdivision in the future, or if part of the tract is not sub- divided, consideration must be given to possible future street openings and access to future lots which could result from such resubdivision. 5. Through Traffic. Local residential streets shall be designed so as to discourage high-speed or through traffic. 6. Topography. The street system shall bear a logical relationship to the natural topography of the ground. 7. Street Widths. "Street width" shall be measured from front lot line to front lot line of opposite lots. a. Local Streets. Local streets shall have a minimum R.O.W. width of fifty (50) feet. b. Secondary Streets. Secondary or feeder streets shall have a minimum R.O.W. width of sixty (60) feet. c. Major Streets. The width of major streets shall be determined by the Planning & Zoning Commission. Major streets with a right-of-way width of less than, one hundred (100) feet are to be increased to a width of one hundred (100) feet for a distance of one hundred fifty (150) feet at the approach to a major street intersection, with a transition back to normal right-of-way over a distance of an additional one hundred fifty (150) feet. 8. Street Alignment: The maximum deflection in alignment permitted without use of curve shall be ten (10) degrees. 19 9. Major Street Curves. Curves in major streets shall have a center line radius of two thousand (2,000) feet or more with exceptions to this standard granted only by the Planning & Zoning Commission. 10, Secondary Street Curves. Curves in secondary or feeder streets shall have a center line radius of eight hundred (800) feet or more, with exceptions to this standard granted only by the Planning & Zoning Commission. ll.Local Street Curves. Curves in local streets are to have a center line radius of three hundred (300) feet or more, except for "loop" or partial "loop" streets. 12.Reverse Curves. Reverse curves shall be separated by a minimum tangent of one hundred (100) feet. 13.Vertical Curves. See ENGINEERING AND CONSTRUCTION 627.1117.1:111" 14.Dead-End Streets - Cul -De -Sacs a. Turn-arounds. Turn-arounds are to have a minimum right-of-way radius of fifty (50) feet for a single-family and two-family use 9M and sixty (60) feet for other uses. b. Maximum Length. The maximum length of a dead- end street with a permanent turn -around shall be six hundred (600) feet, except in conditions of unusual topography. C. Temporary Turn-Arounds. Temporary turn-arounds are to be provided at the end of streets more than four hundred (400) feet long that will be extended in the future. The following note should be placed on the plat: "Cross -hatched area is temporary easement for turn -around until street is extended (give direction) in a recorded plat". 15.Street Intersections. a. Angle of Intersection. Except where existing conditions will not permit, all streets, major and minor, shall intersect at a ninety (90) degree angle. Variations of more than ten (10) degrees on minor streets and more than five (5) degrees on major or secondary streets must first be approved by the Planning & Zoning Commission. 21 b. Radius at Acute Corners. Acute angle inter- sections approved by the Planning & Zoning Commission to have twenty-five (25) foot or greater radii at acute corners. c. Center -Line Tie With Existing Streets. Each new street intersecting with or extending to meet an existing street shall be tied to the existing street on center line with dimensions and bearings to show relationship. 16.Partial or Half -Streets. Partial or half -streets may be provided where the Planning Commission feel that a street should be located on a property line. The following note shall be used in all such dedication: "This -foot strip is dedicated as an easement for all utility purposes including storm and sanitary sewers and shall automatically become dedicated for street purposes when and in- sofar as a -foot strip adjacent to it is so dedicated and the required improvements are installed." 17.Reserve Strips. Provisional one (1) foot reserves 22 may be used along the side or end of streets that abutt acreage tracts, accompanied by a note on the plat as follows: "One (1) foot reserve to become automatically dedicated for street purposes when adjacent property is subdivided in a recorded plat." 18.Street Names. New streets shall be named so as to provide continuity of name with existing streets and so as to prevent conflict with identical or similar names in other parts of the City. 19.Private Streets. Private streets are prohibited. 5.02 LOTS 1. Use. All lots shown on the plat will be for residential purposes unless otherwise noted. Standards that follow apply to residential lots. 2. Lot Size. To conform with Zoning Ordinance. On the basis of the district in which they lie and the use to which they are to be put, all lots must conform to the regulations of the Zoning Ordinance, 23 including minimum area, width, and depth. 3. Minimum Width. Sixty (60) feet at building line. Radial lots to have a minimum of fifty (50) feet at the front building line and a minimum of sixty (60) feet width, thirty (30) feet behind the building line. 4. Minimum Depth. One hundred (100) feet. 5. Minimum Area. Six thousand (6,000) square feet. 6. Corner Lots. Corner lots with a width of less than seventy-five (75) feet are to be at least five (5) feet wider than average of interior lots in the block. Corner lots with a width of less than eighty-five (85) feet adjacent to a major thoroughfare are to be at least fifteen (15) feet wider than the average of interior lots in the block. 7, Lot Shape. Lots should be rectangular insofar as practicable. Sharp angles between lot lines should 24 be avoided. The ratio of depth to width should not ordinarily exceed two and one-half (2-1/2) times. 8. Lot Lines. Side lot lines should be perpendicular or radial to street frontage and the following note may be used in lieu of bearings.: "All side lot lines are either perpendicular or radial to street frontage unless otherwise noted." 9. Lot Facing a. Street Frontage. Each lot shall be provided with adequate access to an existing or proposed public street by frontage -on such street. b. Double Front. Double front lots are prohibited except when backing on major thoroughfares. C. Front Facing. Whereever feasible, each lot should face the front of a similar lot across the street. In general, an arrangement placing adjacent lots at right angles to each other should be avoided. 10.Lot Numbering. All lots are to be numbered con- secutively within each block. Lot numbering may be cumulative throughout the subdivision if the 26 numbering continues from block to block in a uniform manner that has been approved on an over-all preliminary plat. 11.Driveway Restrictions. Rear and side driveway access to major thoroughfares shall be prohibited. 5.03 BLOCKS 1. Block Length. a. Residential. Maximum block length for residential use shall be twelve hundred (1,200) feet, measured along the center of the block. Five hundred (500) feet is a desirable minimum. b. On Major Street. Maximum block length along a major street shall be sixteen hundred (1,600) feet except under special conditions and upon approval of the Planning & Zoning Commission. 27 2. Block Width. Blocks shall be wide enough to allow two (2) tiers of lots of at least minimum depth, except when prevented by the size of the property or the need to back-up to a major thoroughfare. 3. Block Numbering. Blocks are to be numbered consecutively within the overall plat and/or sections of an overall plat as recorded. 5.04 BUILDING LINES. 1. Front Street. The front building line shall not be less than twenty-five (25) feet from the front property line. 2. Side Street. The building line on the side of corner lots shall not be less than fifteen (15) feet from the side street property line. 3. Side and Rear. Side building line shall be 7 feet from nearest P.L. Refer to Zoning Ordinance for other building lines. 5.05 ALLEYS. 1. Alley Width. Where provided, alleys shall not be less than twenty (20) feet in width. RM e 2. Cut -Offs. In case of intersecting alleys, a cut- off shall be required at each corner. Cut-offs shall be triangles having two (2) equal sides each of which shall be not less than ten (10) feet in length. 3. Dead -End Alleys. Dead-end alleys will not be permitted. Alleys in new subdivisions shall connect to alleys in adjacent subdivisions wherever feasible. 4. Alleys Required. Alleys shall be required in all business areas and in those portions of new residential subdivisions where partial blocks are needed to complete existing blocks with alleys. 5.06 EASEMENTS: 1. Size. The size of easements where alleys are not provided shall not be less than five (5) feet on each side of rear lot lines with additional five (5) feet on each side beginning at a plane twenty (20) feet above the ground. The full width of easement shall be not less than ten (10) feet at 29 ground level nor less than twenty (20) feet, beginning at a plane twenty (20) feet above ground. 2. Use. Where necessary, easements shall be retained for poles, wires, conduits, storm sewers, sanitary sewers, water lines, open drains, gas lines or other utilities. Such easements may be required across parts of lots (including side lines) other than as described above, if in the opinion of the Planning and Zoning Commission same is needed. 5.07 IMPROVEMENTS. 1. Monuments. Concrete monuments eight (8) inches in diameter and fifteen (15) inches long shall be placed at all block corners and at all corners of the boundary lines of a subdivision. The exact intersection point on the monument shall be marked by a reinforcing bar one-half (1/2) inch in diameter and twelve (12) inches long embedded in the concrete monument. Intermediate property corners, curve points and angle points shall be marked with a piece of one - MCI half (1/2) inch round reinforcing rod driven flush with the finished ground level or lower if necessary in order to keep same from being disturbed. 2. Sidewalks. Concrete sidewalks of not less than 4 feet in width shall be required along one side of all streets radiating from a school or area designated for future shcools for a distance of two standard blocks or a minimum of 1,000 feet. 3. Other Required Improvements. See ENGINEERING AND CONSTRUCTION STANDARDS. 5.08 RESERVATIONS. 1. Permitted Purposes. No land contained in the proposed subdivision shall be reserved for any use other than a use permitted by the Zoning Ordinance for the district in which the land to be reserved is located. 31 2. Designation on Plat. The specific use for which each piece of land is to be reserved must be shown by appropriate label or descrip- tion on the subdivision plat. Provision for future abandonment of a reservation as may be appropriate must likewise be shown on said plat. 3. Schools. The location and size of schools shall be in accordance with the Planning Commission's School Sites Plan and with the requirements of the School District. 5.09 SUBURBAN SUBDIVISIONS. Any subdivision within one (1) mile of the established City Limits of the City of Georgetown shall not receive any utility services owned by the City unless 32 it conforms to the regulations herein except those subdivisions lots or parcels of land containing 43,560 square feet (1 acre) or more may be exempt from curb and gutter street sections providing drainage of lots, streets, alleys and easements can be accomplished by ditches of moderate slope and depth and all cross street of moderate slope and depth and all cross street drainways shall be properly designed culverts and bridges. Streets must have a minimum of 26' paved width. 5.10 VARIANCES: When a subdivider can show that a provision of these regulations would cause unnecessary hardship if strictly adhered to and where, because of some condition peculiar to the site, in the opinion of the Planning & Zoning Commission a departure may be made without destroying the intent of such provisions, the Planning Commission may authorize a variance. 5.11 PENALTY: Any person violating this Ordinance or any portion thereof shall upon conviction be guilty of a mis- 33 demeanor and shall be fined $200.00, and each day that such violation continues shall be considered a separate offense and punishable accordingly. 5.12 SAVING CLAUSE: If any section, subsection, sentence, clause, or phase of this Ordinance is for any reason held to be unconstitutional, void or invalid, the validity of the remaining portions of this Ordinance shall not be affected thereby, it being the intent of the City Council in adopting this Ordinance that no portion thereof, or provision or regulation contained herein shall become inoperative or fail by reason of the unconstitutionality or invalidity of any section, subsection, sentence, clause, phrase, or provision of this Ordinance. 34 ENGINEERING AND CONSTRUCTION STANDARDS POLICIES. Policies, terms and conditions to be followed in paving work, and the extending of water and sewer lines, are included in this Ordinance , dated STREETS. All streets shall be constructed on compacted (90% Proctor) subgrade which is adequately stable to prevent rapid deterioration of base course and surfacing and seven inches of compacted (95% Proctor) flexible base. If the subgrade PI exceeds 20, the subgrade shall be stabilized with an amount of lime adequate to reduce the subgrade PI to 20 or less. Determination of the plasticity index shall be the responsibility of the developer. The primary surfacing shall be 1-1/2" of compacted asphaltic concrete. If in the opinion of the Planning and Zoning Commission and the City's Engineer, concrete surfacing would be more desirable because of existing conditions, 6" of concrete surfacing reinforced as required shall be installed on prepared subbase. Alignment, Grade and Width. Alignment. Alignment of streets shall be as hereinbefore stated in GENERAL REQUIREMENTS AND DESIGN STANDARDS. Grades. Gutter gradients shall be a minimum of one-quarter (1/4) of one (1) percent. Crown sections shall slope not less than one - 35 quarter (1/4) inch per foot for asphaltic concrete and one-eighth (1/8) inch per foot for Portland cement concrete. The minimum drop around curb return will be one-tenth (1/10) of one (1) foot. The maximum drop of grade tangents from opposite direction to a common low point shall not exceed one and one-half (1-1/2) feet. All gutter grades shall be above the design water surface of ditches and storm sewers. All grade changes with an algebraic difference of one (1) per cent or more shall be connected with a vertical curve. Width. Minimum width of streets shall be as follows: Street Width Back Classification R.O.W. Width to Back of Curb Major Streets 80' Min. 50'-0" Secondary or Collector Streets 60' Min. 40'-0" Local Streets 50' Min. 30'-0" Pavement Design. Pavement design shall conform to the following general requirements unless otherwise approved by the Planning Commission. References to Texas Highway Department specifications regarding street work W. are references to the "Standard Specification for Road and Bridge Construction" adopted by the State Highway Department of Texas. Compacted Sub -Base. Shall be generally in accordance with Items 200,204,214 and 230 of the Texas Highway Department Standard Specifications. Flexible Base Pavement. Flexible base pavement shall consist of a base course of the thickness and of the type materials indicated below for flexible bases, and shall be surfaced with one of the types of surface courses indicated below: Flexible Bases Courses: Seven (7) inches of compacted crushed limestone conforming to Item 242 Texas Highway Department, Standard Specification shall be used in all street construction. Surface Courses: One and one-half (1-1/2) inches of Hot Mix Asphaltic Concrete Pavement conforming to Item 340 Texas Highway Department, Standard Specification. Curb and Gutter. Curb and combination curb and gutter shall be constructed of reinforced concrete except as noted elsewhere, Cross-section and shapes shall conform to standards on file with the City Engineer. 37 Extruded concrete curbs and gutter sections without reinforcing may be used when placed on compacted flexible base or curb sections alone when placed on finished surface course. In all cases, radius sections of 20 foot or less shall be reinforced. Sections of curbs adjacent to curb inlets shall be reinforced for a distance of 10' each direction when on tangent sections and on arc sections as specified above. ALLEYS. Pavement Type. All alleys shall be paved as a minimum with six (6) inches of crushed stone flexible base, conforming to requirements for street paving. Pavement Width. A minimum paved width of ten (10) feet shall be required for all alleys. DRAINAGE AND STORM SEWERS. Adequate drainage shall be provided within the limits of the subdivisions. The protection of adjoining property shall be considered in the review of plans submitted. Size. Sizing of inlets, storm sewers, outfalls, culverts and drainage ditches will be based on the following: Design Storm. The design storm will be based on rainfall intensity -frequency data published by the U.S. Weather Bureau. The design storm should be 50 year. Runoff Computations. To determine the runoff rates for the various areas, the standard rational method will be used, utilizing the formula Q=CIA, where Q=rate of runoff in cubic feet per second, C=runoff coefficient, I=rainfall intensity for the particular duration in inches per hour, and A=the drainage area in acres. Drainage areas will be arrived at by considering location of high and low points on street grades, drainage divides in the area, and general configuration of existing and finished grades. Runoff Coefficient. The runoff coefficient which considers the slope of the terrain, the character of the land use, and the imperviousness of the drainage area shall be determined 39 e from the Master Plan for the City. The runoff coefficient for the appropriate land uses shall be as follows: Commercial Areas 0.90 Industrial Areas 0.85 Residential Areas 0.45 Apartment Areas 0.80 Park Areas 0.35 Paved Areas 0.90 Sizing of Sewers. Sewers shall be sized to carry the discharge (Q) derived from the above formula. Capacity of storm sewers will be determined by the use of Manning's formula on the basis of hydraulic gradients rather than the physical slope of the pipe. Minimum size of the storm sewer shall be 18 inches or equivalent. Sizing and Spacing of Inlets. Inlets shall be spaced so that maximum spread of water shall not exceed one-half of Adjacent Traveled Lane. Inlets will be provided at all low points in gutter gradient. On thoroughfares, all inlets shall be recessed a minimum of eighteen (18) inches from the face of curb, and curbs shall be tapered to the inlet. Inlets will be sized using an allowable capacity of one (1) cubic foot per second per foot 511f of opening for a throat height of seven and one-half (7-1/2) inches. Ditches. Ditches shall be sized to carry the runoff (Q) derived from the above formula. Design._ Design of storm sewers, outfalls, culverts and drainage ditches will conform to the following general requirements: Manholes. Manholes (inlets or junction boxes) shall be provided at all changes in grades or alignment, sewer intersections, and at a maximum of 300 feet on straight lines. If monolithic, reinforced concrete sewer lines are used, a manhole is not required where leads from inlets intersect the main sewer. Design of manholes shall conform to the Standard Specifications on file with the City Engineer. Inlets. Design of inlets shall conform to the Standard Specifications on file with the City Engineer. Pipe. Pipe for storm drains shall be of acceptable material and approved for the specific conditions where used. 41 Where, in the opinion of the City Engineer, added strength of pipe is needed for traffic loads over minimum cover or for excessive height of backfill, pipe shall have a minimum cover of not less than one (1) foot over the top of the pipe. Ditches. Drainage ditches, where approved by the Planning & Zoning Commission may be used for outfalls to natural or major drainage channels. Ditches shall have a minimum grade of not less than 0.50 per cent and side slopes not steeper than 2:1, unless side slopes are paved. Outfalls. Outfalls from sewers and ditches into natural drainage ways shall enter at the grade of natural drainage channel. If necessary, drop type outfall structures shall be used to prevent erosion. Major Drainage Ways and Structures. Design of major drainage ways through a subdivision and major structures, such as box culverts or bridges, across a major drainage channel, shall be coordinated with any Flood Control District, if such exists. 42 WATER LINES Water systems shall be of sufficient size to furnish adequate domestic water supply, to furnish fire protection and water services to all lots, and to conform with the Master Water Plan of the City. No main line shall be less than 6 inches. The City will pay the price difference of pipe only if a larger main is required to provide for future growth in the area. If water system pressure booster stations are required, the cost of such installation shall be the sole responsibility of the developer. Location. All water mains shall be constructed in streets and/or easements. Pipe. All water mains 12 -inch and smaller shall be cast iron or ductile iron pipe,Class 150 unless otherwise approved by City Engineer, with single rubber gasket joint,shall have a cement mortar lining of the "Enameline" type, or approved equal, and shall have a minimum cover of 36 inches. 4" PVC with rubber gasket joints will be permitted when installed in cul-de-sacs or short connecting streets not exceeding 500 feet and when a fire hydrant is installed on 6" or larger cast iron main at each corner. 43 I Fittings. Fittings shall be cast iron with mechanical joints and shall be cement lined, unless otherwise specified. Fire Hydrants. In general, fire hydrants shall be placed on block corners or near the center of the block in such a manner as to place all of every lot within a radius of 500 feet of a fire hydrant in residential areas and within a radius of 300 feet in commercial or industrial areas. All fire hydrants will be provided and installed by developer. Fire Hydrant Fittings. All fire hydrants shall have one pumper nozzle and two hose nozzles with standard threads, shall have a main barrel valve opening of not less than 5 inches, and shall be placed on C.I. mains of not less than 6 inches in diameter. Six- inch gate valves shall be placed on all fire hydrant leads on 12" Main or larger. Pressure Test. After the complete installation, the waterworks shall be tested with a hydraulic test pressure of not less than 150 pounds per square inch, maintained over a continuous period of not less than four (4) hours. If the test indicates a leakage in excess of ten (10) gallons per inch of nominal diameter of pipe per mile during the four hour test period, then the leaks shall be found and repaired. All known leaks shall be stopped regardless of this test requirement. 44 Disinfection. Prior to the acceptance and before any open connection to any existing water main is made, the waterworks shall be disinfected with a minimum of 50 parts per million of available chlorine, or sufficient chlorine to give a residual of 5 parts per million in all parts of the waterworks. After chlorination and flushing, the Developer shall fill the waterworks with water and the City shall take samples of water taken from several locations, not less than one per section, or two per mile, for bacteriological tests. In the event the bacteriological test are positive (unsatisfactory), the Developer shall drain the lines, and repeat the chlorination until the tests results are negative, or satisfactory. SANITARY SEWERS. Sanitary sewer facilities shall be provided to adequately service the subdivision and shall conform with the Master Sanitary Sewer Plan for the City and recommendations of the State Health Department and City Engineer. Pipe. All sewer pipe in sizes 30" and smaller shall be vitrified clay sewer pipe. All sewer pipe in sizes 36" and larger shall be asphalt coated concrete sewer pipe. The City Engineer shall have the authority to approve pipe other than the above mentioned. 45 Size. A minimum of 8 -inch sewer pipe shall be required, except that 6 -inch lines will be acceptable only on short lines and in the locations where so approved by the City Engineer. The City will pay the price difference of pipe only if a larger main is required to provide for future growth elsewhere in the area. Pipe Joints. All sanitary sewer pipe joints shall be of the premoulded type conforming to A.S.T.M. Designation C425. Location. Wherever practicable sewers shall be located in the alleys or easements and shall be 5 feet to 6-1/2 feet deep to invert. Grades. Grades and appurtenances of sanitary sewers shall conform to the requirements of the Texas State Department of Health and the City. The following are the minimum slopes which should be provided; however, slopes greater than these are desirable: Sewer Size Minimum Slope in Feet Per 100 Feet 6 inch 0.50 8 inch 0.40 10 inch 0.28 12 inch 0.22 Lid Sewer Size (Cont'd) 15 inch 18 inch 21 inch 24 inch 27 inch 30 inch 36 inch Minimum Slope in Feet Per 100 Feet 0.15 0.12 0.10 0.08 0.067 0.058 0.046 Infiltration. Prior to the acceptance, the Sanitary Sewers shall be subject to leakage tests. The leakage outward or inward (exfiltration or infiltration) shall not exceed 50 gallons per inch of pipe diameter per mile per day for any section of the system. The use of a television camera or other visual methods for inspection prior to placing the sewer in service is recommended. Lift Stations. All lift stations shall be designated and constructed with two or more sewage pumps with total capacity of twice the design maximum flow. Detailed design data, plans and specifications of the pumps shall be submitted to the City Engineer prior to the purchase and installation of the pumps. All costs are the sole responsibility of the developer. Force Mains. All force mains shall be cast iron pipe, Class 150, unless otherwise specified, with rubber gasket joint, and shall 47 have a cement mortar lining of the "Enameline" type or approved equal. At design average flow, a cleansing velocity of at least two (2) feet per second shall be maintained. An automatic air relief valve shall be placed at high points in the force main to prevent air locking. UTILITY SERVICES Construction. All services for utilities shall be made available for each lot in such a manner so as to eliminate the necessity for disturbing the street and alley pavement, curb, gutter, sidewalks, and drainage structures when connections are made. Water Service. Single water service lines shall be a minimum of 1 inch Polybutylene and shall be provided with a corporation at the main and a curb stop located at least 2 feet outside of curb with cover not to exceed 1-1/2 feet. Double service shall be minimum of 1-1/2 inch Polybutylene with corporation and curb stops. Sewer Service. Sanitary sewer service lines shall be a minimum of 4 -inch, shall meet the same requirements for Sanitary Sewers described above, shall be constructed from the main to the lot Lt? Property line using wyes and necessary bends, and shall have a minimum cover at the property line of four (4) feet, where possible. Stub Markers. The subdivider shall place a suitable marker at the point where said service lines are stubbed out so that these lines can be easily located for connection for future development. Utility Extensions. The subdivider shall make arrangements with all other appropriate utility companies for the extension of their respective utility lines and service to and within the addition and for any costs or refunds of such costs. All subdivisions must be served by City of Georgetown Electric Utilities. Passed and Approved on its first reading this day of 197,5 Passed and Approved on the Second and Final reading this 11-Y_ day of � �% 19 91 `'AYOR CITY F [igWXzIUlaia—� Joe E. Cr ord ATTEST: APPROVED AS TO FORM: CITY SECRETAR (s) W.L. Walden CITY ATTORNEY Joe B. McMaster 49 Dimension "X "to be o mimmun or one N fool, but is to be increased where necessary to provide bearing against undistured french wall. of Cont. Backing poured in place _Preccst ��•� r' CJnc. Bloch F S � 1� v :1.,, Nocon c. to be poured on fittings I tort nly. L: i.. CONCRETE BLOCKING DETAILS FOR PIPE FITTINGS PIPE 900 BEND 450 BEND 22%, SEND PLUGS 6 TEES 6 1'-0.. 8• I.-0" 1. 3" 10 I"-il" I"-6 I I -0" I I'-8 12 2 3' 1--9" 1' 3' 2 -0 16" 3-0�� 2.-3 C-8" 2'-7" 18� 3-fi� 612 -96 I�-9" 31 0'� L: i.. CONCRETE BLOCKING DETAILS FOR PIPE FITTINGS F- W W m c c m 0 3 Place Fire Hydrant On Larger Main At Intersections. STREET DETAIL OF FIRE HYDRANT LOCATION NO SCALE LOTS OR TRACTS Fire Hydrant Fire Hydrant Water Line Place Fire Hydrant On Larger Main At Intersections. STREET DETAIL OF FIRE HYDRANT LOCATION NO SCALE x� 1118 L/ IU= TSelect BoCkfi6 _..:.. :.'�Ii--• Sond docket Iil�lll � Se/ecl Back lit/ b a 0 P Rock to be excavated 4be/ow grade and } bockli//ed with suitable material. Cut out be/ow be//. ROCK EXCAVATION 61 SACKF/LL/NG DE TA/LS Excepting under poromeots end ofber specie/ areas designated on the p/ons or /n Me specifications as requiring o specified density, al/ trench backfill M, above top of pipe shof/ consist of excavated materia/ free of large rock or stone or vegetation, rater tamped by pond/np or jetting as directed by the Engineer. Lay in undisturbed soil ; cut our be/ow pipe for balls only. rboroughly tamp and compact backfill around p/pe and f?" above pipe wild sOoot mole' in /eyers 6" or /ass. —1 LAY/NG AND BACKFILLING Trench Width �••�-: �••::••:%+6 concrete r, :'. •: rompad rreaeh W10th CONCRETF JACKET CONCRETE JACKET Shoilow Depth O' 4 ft. Over 12ft. Dep,'h When rock encountered, remove rock S" below pipe and replace wild sloe/ material, we// ramped. m No. jot lB Class A Concrete CONCRETE JACKET REINFORCED NOTE r Concrete ✓oche! when specified (by types) in the proposal $ha// be used of /ocotions shown on plans or as directed. Curb Slop SECTION ?"to 4" Connection TAPPED TEE Moin Size 4 6 11 8 11 /O Mox. Service /" / %" / %" / �" Corporation Stop SER W CE CONNEC T/ON DE TA /L S NO SCALE Begin Bldg. Connection with %q Bend -1 Widlh When Bldg. Conn. is not to be installed immediately, close stock with cemented stopper. Bend k,�—Class "8 Cone. Cradle NJ y DEEP SEWER CONNEMON SERV/CE STACK 0 I � i I I I I No.3 at 6" a/ both ways —t -j I i I 'i fT I I —j 71� I I I I No -3 of 6" c both ways concrete or Brick � 41-0.. Open Channel z 0 v z m z 0 B " SHALLOW MANHOLE z CO Cb o m n � m 8'�L Minimum 9'-O" — Use Medium Type for less NOT£ : Entire outside wo//s of Brick receive 2 Cc Br surfoc Mcnh morlor pioe,er. MEDIUM DEPTH MA AIHOL E • fn>ire o-ls.e'e surface of G' e n'nlls o,' ,3ric!c /V, 4 le !o receit--e iii»orfar P/Qs�er 0 Min. + IZadius = IS'—O" 4" ick toric. Ilipp-,' W i r¢ xi,!5ap 2000 Pzi t=one, TYPICAL LONG. RIP—RAP AT CoVJ%JER IJo i2ip-Qap Shall nol 6x quired wham Charnrnel i'ta5 IZoc-k Side walls Min. oC paz P. ¢a Tk'i6 u16-40r/y 2000 P.; OTE: U, To all is nmed¢d w cn usa-d upslrQan• min. 3u�;sei�g Had. ;16 1 }lighways - aU back Al/ shall �d i� 4- layers 4e ruin . Pat A.A.5.0.0. ProcJar da..,l.,jy . ,he// be, 40 a d 14y.. eecks a vayak he TYPICAL. L.DNC. PIP—RAP AT FLIPS I P1Pl—: ST---Dpl?J6a D>=TAIL ular Bal"" 1 -fall. I afn"b E two sr�s -1-3NrAVH2 -,d,->WeL,I xooZj u, I:;/I 99 Few I-auuey7 : aio(y ry ... 4:�UtsilT!: P'O.Ilnb'O� SS �ll� Leaf. A PL.AN SEGT ►ON�� JE. o- 9 3000'di CCwt�•%t _ w z 6"ac M i4 u.v-Ma.a%7 •. to 'I a� • e cOW161. JL. Lurbi 6u�c. I �— D-l.' on •lo/a• 0'-G' 6un.p • i •- -- --- --------- - - o I • -- curb i 4.usw '�h" Evp.Jl;. _ i MOTE:Lj blop¢min. CC'4'-o" ;n41 4CO inl¢� 1-2 L4'—o" on sle ¢ or L9 O" eum Leaf. A PL.AN SEGT ►ON�� JE. o- 9 3000'di CCwt�•%t _ w z 6"ac M i4 u.v-Ma.a%7 •. to 'I a� • e cOW161. JL. '�i�l.Lci i.3Tlb'/� 31�zl7t`�vi -1d7 i�1 1`loll.�as N�ttd toll ij :;,uo2 V 000rc S�IAVPn `IWI/V\ ti;;, 'JUOJ-,Ili, 7��ftc+g:q�n��� tuawFed Jo tIwIJ _•oua�T 0006 0172z17No7#aCoE Zi91.1n aNV' <;T?in2 -n 1dS H �1.v9 as VQ ./ Gurb E Gu -}¢r SIDE WALK AN V CU2E5 -smcno)J d 25'-0•' o. G. 5117E WALK J a NT DE'fA) L No i 175 Tlt.� a .Lm ,L33'dls N� Il'73s "►`dam ld hl t-ot•^oma Z e. v v% .ysa9 a�glxa�� Nrdaq Pat�ed,++o7 LAI" ..o�• uolram�. + \ w��odu+ay I -� 'vantrn �y a 7cnoy Fq adl, o�5 " FAOR ywn}nl qpw. .1 s.4otu-p7 �Q� uo s�eq 6u1� w�ul2?! ahn SFgM9h1 .� �I}?vim{ i(nevl.l .lob •umoa.lS St �yUln�� 'tC .axe Z/, •dwsb �ticoddp ��vrm •splg sof '>'wec,� •Ssau�all�. w�wl ulw oS Pur vt-a�auo.2wpoc�,£ jo zcl of dlyra •D}-n�ouo) . -I� ay/g L UI ppuiepuoJ J/DtCM WACs daa� ot. Plus to-.tuo7 -P XUIJF �1DdoJd ..t Ajess' -;.-VU 41 tuwW7AI L P -A uol.tenala sly„ 'yPr.�6 q�n� �o dot act �noge �..DEZ ) OZ -0 zq Pinol+C q. ,7 DI�} wo t °J -•6 .Io .O-,% }Tod v tip uo,jenDj9 qels ="i •s{a-Ii P�,,nc, of sFvman LP-. ,r S6u,u�do gAno jjr to pat�mjtSUo,, aq of v.v auo.de 5eMT^I�Q :s3iory b d "VC -4 In 1.3zi7 NO2 -t d7l dh.L X; WE L '2 I I QI OL W 9 �4 conkna %2"exFans1o,?,jO,4 M-4ellal 117-1' v-.... 3' COMC. VALLEY Couc. FILLET Curze><� GUTTaR DETAIL GUTrr=R MOUNTABLE MACHINE LAID CURB MACHINE LAID CURB MEDIAN MACHINE LAID CURB 51-011 5.-0�� Min. Min. Pavement Width /'-0° Width 11 11 4 Ff. Slope l 2 Comp. Asph. Conc. Minimum 7" Compacted Flex. Bose TYPICAL SECTION - EXTRUDED CURB Pav Minimum 7° Compacted Flex. dth M 5 -0° Min. it -0 Min. I/ 1 I'-0" Min. TYPICAL SECTION - WITHOUT CURB