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All public improvements shall be designed and constructed in accordance with the city code, and policies, design criteria, standards and specifications promulgated by the city.
(Ord. 17851, § 1 (App. C, Ch. 7, Art. II), passed 10-30-2007; Ord. 23679-06-2019, § 7, passed 6-4-2019)
(a) All streets and alleys shall be paved and shall be designed and constructed in accordance with city design standards and specifications.
(b) The right-of-way shall be graded to provide suitable finish grades for pavement, sidewalks and planting strips with adequate surface drainage and convenient access to the lots.
(c) All sidewalks or bicycle/pedestrian ways and driveways shall be constructed in accordance with city design standards and specifications.
(d) All drainage facilities shall be designed and constructed in accordance with city design standards and specifications.
(Ord. 17851, § 1 (App. C, Ch. 7, Art. III), passed 10-30-2007; Ord. 23679-06-2019, § 8, passed 6-4-2019)
Street lighting shall be provided on all streets, shall conform to all applicable city design and installation standards and shall be approved by the city prior to construction. All necessary easements for street light installation and maintenance shall be shown on both the preliminary and final plats. Each owner (developer) is responsible for 100% of the cost of the installation of streetlights. Owner and maintenance responsibility of streetlights, if not otherwise provided for, shall transfer to the city upon final acceptance by the city of the project.
(Ord. 17851, § 1 (App. C, Ch. 7, Art. IV), passed 10-30-2007; Ord. 23679-06-2019, § 9, passed 6-4-2019)
The following site improvement data, including all plans and specifications and engineering calculations, shall be submitted, bearing the seal and signature of an engineer, proficient in civil engineering, and registered in the State of Texas. The number of copies and a reproducible shall be furnished as required by the using department.
(a) Roadways and sidewalks. Plans and profiles of all streets, alleys, sidewalks, crosswalk ways and detailed cost estimates.
(b) Sanitary sewers. The location and dimensions of existing sanitary sewer lines; plans and profiles of proposed sewer lines, indicating depths and grades of lines; detailed design information; and cost estimates.
(c) Treatment plant system. When a separate sewer system or treatment plant is proposed, proposed plans and specifications shall be submitted.
(d) Water lines and hydrants. The location and size of existing water lines and fire hydrants; plans and proposed water lines and fire hydrants, showing depths and grades of the lines; detailed design information; and cost estimates.
(e) Streets and drainage. All street widths and grades shall be indicated; runoff figures shall be indicated on the outlet and inlet side of all drainage ditches and storm sewers, and at all points in the street at changes of grade or where the water enters another street or storm sewer or drainage ditch. Drainage easements shall be indicated.
(f) Drainage design. Calculations and map showing the anticipate stormwater flow, including watershed area, percent runoff and time of concentration. When a drainage ditch or storm sewer is proposed, calculations shall be submitted showing the basis for design.
(g) Channels and storm drainage. When a drainage channel or storm sewer is proposed, completed plans, profiles and specifications shall be submitted, showing complete construction details and detailed cost estimate.
(h) Off-site drainage: upstream. When conditions upstream from a proposed channel or storm drain outside the limits of the ownership of the developer do not permit maximum design flow, the drainage facilities shall be designed based on potential and fully developed conditions.
(i) Off-site drainage: downstream. When conditions downstream from a proposed channel or storm drain outside the limits of the ownership of the developer do not permit maximum design flow, water surface elevations for a one hundred-year design frequency shall be indicated considering the downstream condition in order to define the potential flood hazards. Solutions to protect the property shall be developed.
(j) Drainage outfall. All drainage improvements shall be designed to an acceptable outfall.
(Ord. 17851, § 1 (App. C, Ch. 7, Art. V), passed 10-30-2007)
Editor’s note:
Ord. 17924, § 1, adopted December 18, 2007, deleted the provisions of § 31-136, incorporation of adopted design standards and policy manuals, and renumbered said provisions as § 31-81(d). Said provisions have been designated as § 31-81(e) at the discretion of the editor, as there already exist provisions designated (d). See also the Code Comparative Table.
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