Minimum Design Standards for Development
Total Page:16
File Type:pdf, Size:1020Kb
MINIMUM DESIGN STANDARDS FOR DEVELOPMENT Revised January 2008 FOREWORD This manual is intended to provide an information guide and to set standards governing design, preparation and submission of plans and specifications, and construction of municipal improvements within Brazeau County. These standards were initially developed to address concerns regarding the fringe area around Drayton Valley and shall apply to all development within Brazeau County. Under no circumstances shall these standards supersede instructions of the Brazeau County Director of Public Works. Plans and specifications involving the fringe area around Drayton Valley must also be submitted to the Town Engineer for review and recommendations. This Manual may be purchased from Brazeau County. All requests for a copy of the manual should be directed to the Public Works department. Please allow up to seven days for copies to be generated and bound. All users of this manual should be aware that development within Brazeau County is governed by the current issue of the Land use Bylaw which describes the administrative process to obtain Development Permits, agreements, Land Use Restricting, and Subdivisions. Contacts: Brazeau County Public Works Department P.O. Box 77 5516 Industrial Road Drayton Valley, Alberta T7A 1R1 Telephone: (780) 542-7777 Fax: (780) 542-7770 Web: www.brazeau.ab.ca TABLE OF CONTENTS Page Section 1: General Conditions and Procedures ......................................................1-1 For the Installation of Municipal Services 1.0.0 Preliminary Procedures................................................................1-1 1.1.0 Definitions ....................................................................................1-1 1.2.0 General Requirements.................................................................1-2 1.2.1 Development Brief ..........................................................1-2 1.2.2 Developer’s Engineer .....................................................1-2 1.2.3 Development Proposal ...................................................1-2 1.2.4 Overall Layout ................................................................1-4 1.2.5 Municipal Services..........................................................1-4 1.2.6 Existing Improvements ...................................................1-4 1.3.0 General Conditions ......................................................................1-5 1.3.1 Scope .............................................................................1-5 1.3.2 Design Standards ...........................................................1-6 1.4.0 Procedure ....................................................................................1-6 1.4.1 Engineering Design ........................................................1-6 1.4.2 Submission of Engineering Design.................................1-7 1.4.3 Preliminary Design Review.............................................1-7 1.4.4 Final Design Review.......................................................1-7 1.4.5 Right-of-Way Documents................................................1-8 1.4.6 Oil and Gas Pipeline Crossing Agreements....................1-8 1.4.7 Construction Approval ....................................................1-8 1.4.8 Engineering Supervision.................................................1-8 1.4.9 Survey Control System...................................................1-9 1.4.10 Testing............................................................................1-9 1.4.11 As-Built Drawings ...........................................................1-9 1.4.12 Municipal Acceptance.....................................................1-9 i Section 2: Preparation of Engineering Drawings ...................................................2-1 Part 1 – Design Drawings 1.1.0 Scope...........................................................................................2-1 1.2.0 Drawing Size, Material and Basic Layout.....................................2-1 1.3.0 Scales ..........................................................................................2-1 1.4.0 Drawing Technique ......................................................................2-1 1.5.0 General Requirements for all Services ........................................2-2 1.6.0 Overall Plans ...............................................................................2-2 1.6.1 Cover Sheet....................................................................2-2 1.6.2 Index Plan.......................................................................2-2 1.6.3 Road, Sidewalk, and Walkway Plan ...............................2-2 1.6.4 Lot Grading Plan.............................................................2-2 1.6.5 Landscaping Plan ...........................................................2-3 1.6.6 Sanitary, Storm Sewer and Watermain Overall Plan ......2-3 1.6.7 Power, Gas, Telephone, and Cable................................2-3 1.7.0 Detail Plan / Profile ......................................................................2-3 1.7.1 Water..............................................................................2-3 1.7.2 Requirements for Sanitary and Storm Sewer .................2-3 1.7.3 Requirements for Roads.................................................2-4 Part 2 – As-Built Drawings 2.1.0 Scope...........................................................................................2-5 2.1.1 General...........................................................................2-5 2.2.1 Storm and Sanitary Sewer..............................................2-5 2.2.2 Water..............................................................................2-5 2.2.3 Road, Curb and Sidewalks .............................................2-5 2.2.4 Water and Sanitary Service Connections .......................2-6 2.2.5 Individual Lot Plans ........................................................2-6 ii Section 3: Water Distribution System .........................................................................3-1 3.1.0 Design Requirements ..................................................................3-1 3.2.0 Watermains..................................................................................3-1 3.2.1 Watermain – Material......................................................3-1 3.2.2 Watermain – Location.....................................................3-2 3.3.0 Hydrants ......................................................................................3-2 3.3.1 Hydrant - Material ...........................................................3-2 3.3.2 Hydrant – Location and Installation ................................3-3 3.4.0 Valves ..........................................................................................3-4 3.4.1 Valve – Material..............................................................3-4 3.4.2 Valve – Boxes.................................................................3-4 3.4.3 Valve – Location .............................................................3-4 3.5.0 Trenching and Backfilling.............................................................3-4 3.6.0 Thrust blocks ...............................................................................3-5 3.7.0 Disinfection ..................................................................................3-5 3.7.1 Testing............................................................................3-5 Tables 3.1 and 3.2..........................................................3-6 Section 4: Sanitary Sewage System............................................................................4-1 4.1.0 Design Factors.............................................................................4-1 4.2.0 Sanitary Sewermains – Materials.................................................4-2 4.3.0 Sewermain Installation and Location ...........................................4-2 4.4.0 Manhole Location.........................................................................4-2 4.5.0 Curved Sewers ............................................................................4-3 4.6.0 Trenching and Backfilling.............................................................4-3 4.7.0 Inspection and Testing.................................................................4-3 iii Section 5: Storm Drainage System .............................................................................5-1 5.1.0 Design Factors.............................................................................5-1 5.2.0 Storm Sewermains – Materials ....................................................5-3 5.3.0 Storm Sewer Installation and Location.........................................5-5 5.4.0 Manhole Installation and Location................................................5-5 5.5.0 Curved Sewers ............................................................................5-5 5.6.0 Trenching and Backfilling.............................................................5-5 5.7.0 Inspection and Testing.................................................................5-5 5.8.0 Detention Facilities.......................................................................5-5 5.9.0 Outfalls.........................................................................................5-6 5.10.0 Receiving Waters.........................................................................5-6 5.11.0 Culverts and Bridges....................................................................5-6 5.12.0 Surface Drainage Swales ............................................................5-6