DESIGN GUIDELINES AND CONSTRUCTION STANDARDS Issued Jan, 2007 DESIGN GUIDELINES AND CONSTRUCTION SPECIFICATIONS FOR ALL PROJECTS FORWARD Page i FORWARD This manual is intended to provide an information guide to set standards governing design, preparation and submission of plans and specifications for construction of municipal improvements in Yellowhead County. It is intended for use by Developers, Engineering Consultants, Utility Companies and County Departments. These standards are provided to set out the “minimum” allowable levels to which the requisite improvements are to be built. In instances where the standards do not cover a particular situation or occurrence, good engineering judgement shall be used. All development shall comply with the requirements of Yellowhead County, all applicable Land Use Bylaws and Provincial and Federal legislation. No departure from these standards shall be permitted without the written approval of the Director of Infrastructure. The County shall be the final authority on any disputed plans. Minor revisions may be given verbal approval by the Director of Infrastructure, but a change order shall be issued to record such revisions. All completed plans, records and documents shall be submitted a minimum of 30 days prior to final design acceptance by the County. No construction shall commence until all designs have been accepted by the County and the following has been submitted: a) Design drawings b) Letters of Credit c) Authority Contacts & Approvals d) Development Agreement e) All Levies & Fees The Yellowhead County, Infrastructure Services address is: 2716 1st Avenue Edson, AB T7E 1N9 Phone: (780) 723-4800 Fax:(780) 723-5066 E-Mail: [email protected] END OF SECTION Issued Jan, 2007 DESIGN GUIDELINES AND CONSTRUCTION SPECIFICATIONS FOR ALL PROJECTS TABLE OF CONTENTS Page ii Table of Contents Issued Mar 07 DESIGN GUIDELINES AND CONSTRUCTION SPECIFICATIONS FOR SUBDIVISION DEVELOPMENTS TABLE OF CONTENTS Page ii FORWARD ................................................................................................................. I TABLE OF CONTENTS ............................................................................................ II SECTION 1: DESIGN GUIDELINES ......................................................................... 1 1 GENERAL CONDITIONS AND ENGINEERING PROCEDURES FOR MUNICIPAL DEVELOPMENT ........................................................................ 2 1.1 GENERAL CONDITIONS ...................................................................................... 2 1.2 PROCEDURE ..................................................................................................... 3 2 PREPARATION OF ENGINEERING DRAWINGS ....................................... 14 2.1 DESIGN DRAWINGS ......................................................................................... 14 2.2 RECORD DRAWINGS ........................................................................................ 19 3 WATER DISTRIBUTION SYSTEM............................................................... 22 3.1 GENERAL ........................................................................................................ 22 3.2 MUNICIPAL WATER SYSTEM............................................................................. 22 3.3 DESIGN REQUIREMENTS.................................................................................. 22 4 SANITARY SEWERAGE SYSTEM .............................................................. 26 4.1 DESIGN FACTORS............................................................................................ 26 4.2 SEWER MAIN INSTALLATION AND LOCATION ..................................................... 28 4.3 MANHOLE INSTALLATION AND LOCATION .......................................................... 28 4.4 CURVED SEWERS............................................................................................ 29 4.5 INSPECTION AND TESTING ............................................................................... 29 4.6 LOW PRESSURE SEWAGE SYSTEMS................................................................. 29 5 STORM DRAINAGE SYSTEM ..................................................................... 35 5.1 DESIGN FACTORS............................................................................................ 35 5.2 STORM SEWER MAINS..................................................................................... 39 5.3 STORM SEWER INSTALLATION AND LOCATION .................................................. 40 5.4 MANHOLE INSTALLATION AND LOCATION .......................................................... 40 5.5 CONNECTIONS TO STORM SEWERS.................................................................. 40 5.6 CURVED SEWERS............................................................................................ 40 5.7 INSPECTION AND TESTING ............................................................................... 40 5.8 STORMWATER MANAGEMENT FACILITIES ......................................................... 41 5.9 EMERGENCY SPILLWAY PROVISIONS................................................................ 43 5.10 OUTFALLS....................................................................................................... 44 5.11 MAINTENANCE AND SERVICE MANUAL.............................................................. 45 5.12 SIGNAGE FOR SAFETY ..................................................................................... 45 6 SEWER AND WATER SERVICE CONNECTIONS ...................................... 46 6.1 SERVICE CONNECTIONS – MINIMUM REQUIREMENTS........................................ 46 6.2 SANITARY SEWER SERVICE ............................................................................. 46 6.3 SERVICE CONNECTIONS – INSTALLATION REQUIREMENTS ................................ 46 Issued Jan, 2007 DESIGN GUIDELINES AND CONSTRUCTION SPECIFICATIONS FOR ALL PROJECTS TABLE OF CONTENTS Page iii 6.4 SERVICE CONNECTION REPORT....................................................................... 47 7 ROADWAYS................................................................................................. 48 7.1 GENERAL ........................................................................................................ 48 7.2 ROADWAY CLASSIFICATION.............................................................................. 48 7.3 GEOMETRIC DESIGN STANDARDS .................................................................... 49 8 UTILITY REQUIREMENTS........................................................................... 56 8.1 GENERAL ........................................................................................................ 56 8.2 ELECTRICAL POWER SERVICE .......................................................................... 56 8.3 STREET LIGHTING............................................................................................ 57 8.4 NATURAL GAS SERVICE.................................................................................... 58 8.5 PIPELINE CROSSINGS ...................................................................................... 58 9 TRAFFIC CONTROL DEVICES, STREET NAME SIGNS & PAVEMENT MARKINGS................................................................................................... 60 9.1 MATERIALS ..................................................................................................... 60 9.2 INSTALLATION ................................................................................................. 60 9.3 MUNICIPAL ADDRESS SIGNAGE ........................................................................ 60 10 LOT GRADING ............................................................................................. 61 10.1 DESIGN........................................................................................................... 61 10.2 RETAINING WALLS........................................................................................... 61 SECTION 2: CONSTRUCTION STANDARDS........................................................ 62 1 AGGREGATES............................................................................................. 63 1.1 GENERAL ........................................................................................................ 63 1.2 PRODUCTS...................................................................................................... 63 1.3 EXECUTION ..................................................................................................... 65 2 TRENCHING AND BACKFILLING............................................................... 67 2.1 GENERAL ........................................................................................................ 67 2.2 EXECUTION ..................................................................................................... 67 3 ROADWAY CONSTRUCTION ..................................................................... 70 3.1 REFERENCE MATERIAL .................................................................................... 70 4 GEOTEXTILE ............................................................................................... 71 4.1 GENERAL ........................................................................................................ 71 4.2 PRODUCTS...................................................................................................... 71 4.3 EXECUTION ....................................................................................................