.
Engineering Design Manual
   
  3/13/08 KEDM Meeting Minutes
4/2/08 KEDM Meeting Minutes
   
June 2008
Files are in Adobe .pdf format -
Files could be up to 3 Mb in size.
Get Adobe Reader
 
Chapter 1 - General Design Requirements  
 
  1.00 Requirements for Public Improvements 1
  1.01 Precedence of Documents 1
  1.02 Abbreviations and Definitions 2
  1.03 Permits 7
  1.04 Submittal Requirements 7
  1.05 Professional Qualifications 31
  1.06 Changes to these Engineering Standards 31
  1.07 Design Modification Process 32
  1.08 Securities 32
  1.09 Errors and Omissions 33
  1.10 Inspection 33
  1.11 Contractor’s Responsibility for Scheduling 34
  1.12 Contractor’s Requirement for Testing 35
  1.13 Safety Requirements 36
  1.14 Preservation, Restoration, and Cleanup 37
  1.15 Railroad Crossings 38
  1.16 Penalties 39
    top
Chapter 2 - Erosion Control, Clearing, and Grading
  2.00 General 1
  2.01 Seasonal Limits 2
  2.02 Preservation of Existing Vegetation 2
  2.03 Temporary Erosion/Sedimentation Control 2
  2.04 Permanent Erosion Control and Vegetation Restoration 9
  2.05 100-Year Flood Plain 9
  2.06 Clearing and Grading on Environmentally Sensitive Lands 9
  2.07 Environmental Protection during Construction 10
  2.08 Signage 12
  2.09 Contractor Certification 13
     
  Figure 2-1: Erosion Control Signage 13
    top
Chapter 3 - Streets
  3.00 Functional Classification 1
  3.01 Access 2
  3.02 Intersections, Driveways and Approaches 4
  3.03 Street Widths 10
  3.04 Surfacing Requirements 14
  3.05 Design Speed 15
  3.06 Horizontal Alignment 16
  3.07 Vertical Alignment 16
  3.08 Transitions 17
  3.09 Dedications and Guarantees 18
  3.10 Private Streets 19
  3.11 Street Frontage Improvements 23
  3.12 Street Ends 26
  3.13 Medians 29
  3.14 Sight Obstruction Requirements 29
  3.15 Survey Monuments 30
  3.16 Sidewalks 30
  3.17 Multi-Use Trails 30
  3.18 Bridges 31
  3.19 Landscaping in the Right-of-Way, Easements, and Access Tracts 32
  3.20 Street Illumination 34
  3.21 Traffic Control and Signing 35
  3.22 Appurtenances 36
  3.23 Franchise Utilities 36
  3.24 Trench Backfill and Restoration 37
  Figures top
  Figure 3-1: Corner Lot Setback 7
  Figure 3-2: Major Arterial 11
  Figure 3-3: Minor Arterial 11
  Figure 3-4: Collector 12
  Figure 3-5: Local: Multi-family Area 12
  Figure 3-6: Local: Single-family Area 13
  Figure 3-7: Alley: Commercial & Industrial 13
  Figure 3-8: Alley: Residential 14
  Figure 3-9: Private Street Type I 21
  Figure 3-10: Private Street Type II 21
  Figure 3-11: Private Street Type III 22
  Figure 3-12: Minimum Street Improvement 25
  Figure 3-13: Cul-De-Sac Dimensions 27
  Figure 3-14: Temporary Cul-De-Sac 28
  Figure 3-15: Trench Patch 37
  Tables top
  Table 3.1 – Unsignalized Intersection Spacing 6
  Table 3.2 – Minimum Distances from Corner Standards 7
  Table 3.3 – Curb Return Radii (Feet) Edge of Pavement/Curb-Minimums 10
  Table 3.4 – Major Arterial Surfacing Requirements 14
  Table 3.5 – Minor Arterial Surfacing Requirements 15
  Table 3.6 – Collector Street Surfacing Requirements 15
  Table 3.7 – Local Street and Alley Access Surfacing Requirement 15
  Table 3.8 – Vertical Alignments and Flood Plains 17
  Table 3.9 - Landscaping in the Right-of-Way, Easement, and Access Tracts 32
    top
Chapter 4 - Storm Drainage
  4.00 General 1
  4.01 Testing and Inspect 2
  4.02 Emerging Technologies and Experimental BMP’s 3
  4.03 Applicability 4
  4.04 General Standards 5
  4.05 Conveyance System Standards 10
  4.06 Water Quality Standards 13
  4.07 Water Quantity Standards 16
    top
Chapter 5 - Water
  5.00 Utility Easements and Tracts 1
  5.01 General Design Considerations 1
  5.02 Sizing and Pressure Requirements 3
  5.03 Shut-off Valves 4
  5.04 Air-Release Valves 4
  5.05 Hydrants 4
  5.06 Water Meters 4
  5.07 Fees and Charges 6
  5.08 Cross Connection Control 6
  5.09 Contract for Reimbursement (Latecomer Agreements) 6
  5.10 Water Quality 6
  5.11 Plans and Specifications 6
  5.12 Connections to Existing Pipelines 7
  5.13 Roadway and Railway Crossing 7
  5.14 Trench Excavation 8
  5.15 Pipe in Filled Areas 8
  5.16 Pipe Installation for Water Mains 8
  5.17 Bedding and Backfill 9
  5.18 Hydrostatic Tes 9
  5.19 Sterilization and Flushing of Water Mains 10
  5.20 Cross Connection Control and Backflow Assemblies 10
  5.21 Requirements for Water System Vault Installations 12
  5.22 Fire Services and Domestic Services 13
  5.23 Special for Fire Service Only 13
  5.24 Water Meter Vaults 14
  5.25 Pressure Reducing Valve Vaults 14
  5.26 Appurtenances 14
  Tables  
  Table 5.1 – Maximum Deflection Permitted 18-Foot Length Pipe 9
    top
Chapter 6 - Wastewater
  6.00 Extension of the Sewer system and Service 1
  6.01 Plans and Specifications 5
  6.02 Connection to Existing systems 5
  6.03 Roadway and Railway Crossing 6
  6.04 Trench Excavation 6
  6.05 Pipe Laying 6
  6.06 Pipe Bedding 6
  6.07 Pipe Backfilling 6
  6.08 Pipe in Filled Areas 7
  6.09 Cleaning and Flushing 7
  6.10 Testing of Gravity Sewers 7
  6.11 Testing of Manholes 7
  6.12 Television Inspection 7
  6.13 Testing of Pressure Sewer Mains 7
  6.14 Manholes 8
  6.15 Side Sewers 9
  6.16 Pump Stations 10
  6.17 Mechanical Lifting Devices 11
  6.18 Pretreatment Facilities 12
  Figures  
  Figure 6-1: Manhole Sizing 9
    top

Calendar of Events
City of Kelso
Places to Stay | Kelso Longview Chamber of Commerce | Cowlitz County Tourism | Kelso Promotional Video Project| HOME