Chapter 1 - General Design Requirements Chapter 2 - Erosion Control, Clearing and Grading Chapter 3 - Streets revised 5/24/09 Speed Humps addition 3.25 per Ordinance No. 09-3701  Chapter 4 - Storm Drainage Chapter 5 - Water Chapter 6 - Wastewater Appendix A - Procedure for Permit Projects by Private Contract Appendix B - Longview - Kelso Urban Area Access Management for Roads and Streets

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Chapter 1 - General Design Requirements	Top
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 Requirements for Testing	35
1.13 Safety Requirements	36
1.14 Preservation, Restoration, and Cleanup	37
1.15 Railroad Crossing	38
1.16 Penalties	39
Chapter 2 - Erosion Control, Clearing, and Grading	Top
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 Plan	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
Chapter 3 - Streetsrevised 5/24/09 Speed Humps addition 3.25 per Ordinance No. 09-3701	Top
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 Traits	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 Requirements	15
Table 3.8 - Vertical Alignments and Flood Plains	17
Table 3.9 - Landscaping in the Right-of-Way, Easement, and Access Tracts	32
Chapter 4 - Storm Draining	Top
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
Chapter 5 - Water	Top
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 Metres	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	Top
Table 5.1 - Maximum Deflection Permitted 18-Foot Length Rope	9
Chapter 6 - Wastewater	Top
6.00 Extension of the Sewer System and Service	1
6.01 Plans and Specifications	5
6.02 Connections 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

Appendix A - Procedure for Permit Projects by Private Contract	Top
Appendix B - Longview-Kelso Urban Area Access Management for Roads and Streets

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