Lynnwood Engineering Design Manual Lynnwood Engineering Design Manual - version updated September 2024(PDF, 2MB)
Standard Plans: Utilities Sewer U-SEW-1-Sewer-Manhole-Frame-Cover.pdf(PDF, 224KB) U-SEW-2-Typical-Side-Sewer-Layouts.pdf(PDF, 114KB) U-SEW-3-Typical-Side-Sewer-Connection.pdf(PDF, 121KB) U-SEW-4-Sewer-Cleanout.pdf(PDF, 118KB) U-SEW-5-Sewer-Backwater-Valve.pdf(PDF, 109KB) U-SEW-6-Outside-Drop-Manhole-Connection.pdf(PDF, 128KB) U-SEW-7-Grease-Interceptor-Single-Vault-System.pdf(PDF, 207KB) Stormwater U-STO-1-Catch-Basin-Type-I.pdf(PDF, 118KB) U-STO-2-Catch-Basin-Type-I-L.pdf(PDF, 122KB) U-STO-3-Catch-Basin-Type-2.pdf(PDF, 120KB) U-STO-4-Precast-Concrete-Inlet.pdf(PDF, 115KB) U-STO-5-Frame-And-Solid-Cover.pdf(PDF, 166KB) U-STO-6-Vaned-Catch-Basin-Grate.pdf(PDF, 182KB) U-STO-7-Storm-Manhole-Frame-Cover.pdf(PDF, 221KB) U-STO-8-Open-Curb-Frame-Grate.pdf(PDF, 157KB) U-STO-9-Open-Curb-Frame-and-Grate-Details.pdf(PDF, 152KB) U-STO-10-Through-Frame-And-Vaned-Grate-With-High-Hood(PDF, 145KB) U-STO-11-Curb-Opening-Discharge.pdf(PDF, 208KB) U-STO-12-Multi-Orifice-Flow-Control.pdf(PDF, 143KB) U-STO-13-Pivoting-Shear-Gate.pdf(PDF, 115KB) U-STO-14-Vegetated-Swale.pdf(PDF, 109KB) Water U-WAT-1-.75in-and-1in-Water-Service.pdf(PDF, 115KB) U-WAT-2-1.5in-and-2in-Water-Service.pdf(PDF, 117KB) U-WAT-3-3-Inch-or-Larger-Domestic-Water-Service-Connection.pdf(PDF, 145KB) U-WAT-4-Large-Vaults.pdf(PDF, 212KB) U-WAT-5-Tie-Rods.pdf(PDF, 112KB) U-WAT-6-2.5-Inch-and-Smaller-DCVA.pdf(PDF, 139KB) U-WAT-7-2.5-Inch-and-Smaller-RPBA.pdf(PDF, 132KB) U-WAT-8-3-Inch-Above-Ground-RPBA-and-DCVA.pdf(PDF, 148KB) U-WAT-9-2-Inch-Blow-Off-Assembly.pdf(PDF, 118KB) U-WAT-10-2-Inch-Air-Vacuum-Assembly.pdf(PDF, 143KB) U-WAT-11-Thrust-Blocks-Vertical-Blocking.pdf(PDF, 130KB) U-WAT-12-Vertical-and-Dead-Weight-Blocking.pdf(PDF, 128KB) U-WAT-13-Horizontal-Thrust-Blocks.pdf(PDF, 146KB) U-WAT-14-Reverse-Thrust-Blocks.pdf(PDF, 138KB) U-WAT-15-Water-Valve-Box-and-Extension.pdf(PDF, 119KB) U-WAT-16-Tapping-Tee.pdf(PDF, 146KB) U-WAT-17-Water-Sampling-Station(PDF, 129KB)
Standard Plans: City Center Crosswalk CC-CW-1-City-Center-Celebratory-Corners-Intersection.pdf(PDF, 128KB) CC-CW-2-City-Center-Prominent-Gateway-Intersections-Crosswalk.pdf(PDF, 127KB) Driveways CC-DW-1-City-Center-Driveway-Layout.pdf(PDF, 122KB) Illumination CC-ILL-4-City-Center-Promenade-Pedestrian-Luminaire-Pole.pdf(PDF, 119KB) CC-ILL-5-City-Center-Streetscape-Type-1-Street-Pedestrian-Luminaire-Pole.pdf(PDF, 129KB) CC-ILL-6-City-Center-Streetscape-Type-2-Street-Pedestrian-Luminaire-Pole.pdf(PDF, 129KB) CC-ILL-7-City-Center-Streetscape-Type-3-Core-Pedestrian-Luminaire-Pole.pdf(PDF, 127KB) CC-ILL-8-City-Center-Streetscape-Type-3-Extension-Street-Pedestrian-Luminaire-Pole.pdf(PDF, 130KB) CC-ILL-9-City-Center-Pole-Receptacle.pdf(PDF, 116KB) Irrigation CC-IRR-1-City-Center-Flower-Basket-Valve-Access-Box.pdf(PDF, 129KB) CC-IRR-2-City-Center-Flower-Basket-Irrigation-Connection.pdf(PDF, 122KB) Roadway Sections CC-ROA-3-City-Center-Median.pdf(PDF, 124KB) CC-ROA-4-City-Center-Median-Tree-Planting.pdf(PDF, 130KB) Sidewalk CC-SID-6-City-Center-Standard-Sidewalk-Treatments.pdf(PDF, 184KB) CC-SID-7-City-Center-Sidewalk-Layout.pdf(PDF, 126KB) CC-SID-8-City-Center-Typical-Bench-and-Pedestrian-Amenity-Layout.pdf(PDF, 140KB) CC-SID-9-City-Center-Bench-Type-A.pdf(PDF, 174KB) CC-SID-10-City-Center-Bench-Type-B.pdf(PDF, 144KB) CC-SID-11-City-Center-Bench-Type-C.pdf(PDF, 125KB) CC-SID-12-City-Center-Street-Tree-Grate.pdf(PDF, 123KB) CC-SID-13-City-Center-Litter-Recycle-Receptacle.pdf(PDF, 165KB) CC-SID-14-City-Center-Bicycle-Rack.pdf(PDF, 131KB) CC-SID-15-City-Center-Heavy-Duty-Bollard.pdf(PDF, 138KB) CC-SID-16-City-Center-Decorative-Bollard.pdf(PDF, 129KB) Signage CC-SIGN-7-City-Center-Standard-Street-Name-Sign-At-Non-Signalized-Intersections-Type-1.pdf(PDF, 127KB) CC-SIGN-8-City-Center-Standard-Street-Name-Sign-At-Non-Signalized-Intersections-Type-2.pdf(PDF, 131KB) CC-SIGN-9-City-Center-Illuminated-Street-Name-Sign-At-Signalized-Intersections.pdf(PDF, 147KB)
Standard Plan Notes Standard Plans:-Private-Developer-General-Notes.pdf(PDF, 144KB) Standard Plans: Capital-Project-General-Notes.pdf(PDF, 144KB) Standard Plans: Grading-Notes.pdf(PDF, 164KB) Standard Plans: TESC-Notes.pdf(PDF, 127KB) Standard Plans: Stormwater-Notes.pdf(PDF, 138KB) Standard Plans: Water-Notes.pdf(PDF, 133KB) Standard Plans: Sewer-Notes.pdf(PDF, 129KB) Standard Plans: Traffic-Control-Notes.pdf(PDF, 135KB) Standard Plans: Street-Sign-Notes.pdf(PDF, 137KB) Standard Plans: Trench-Patching-Notes.pdf(PDF, 135KB) Standard Plans: SCADA-Standard-Notes.pdf(PDF, 766KB) Standard Plans: Fire-Notes.pdf(PDF, 166KB) Standard Plans: Native-Growth-Protection-Area-Notes.pdf(PDF, 100KB)
Amendments Spec or Std# Edit Date Action TESC Notes 1/18/2024 Temporary Erosion and Sedimentation Control Notes: Item 11 should say 2 days between October 1 and April 30th or 7 days between May 1st and September 30th U-SEW-1,U-STO-7 3/25/2024 Used East Jordan's CAD files to update both drawings. Added EJ model numbers. Added "locking lids". U-WAT-17 4/8/2024 Created new spec based off of Koraleen Water Sampling Station. ST-CG-3 5/23/2024 Renamed, removed anchors, reference dimensions with WSDOT standards. U-STO-10 5/23/2024 Modified standard to be the complete Hood, Frame and Grate rather than Hood only. Renamed appropriately. ST-CG-2 6/6/2024 Renamed, removed anchors, reference dimensions with WSDOT standards. F-1 6/7/2024 Cleaned references, notes and languages. Changed approved products. Added IFC note. Combined Some notes for clarity. U-STO-5 6/7/2024 Updated product number and changed to a "drain" lid.
Standard Plans: Erosion & Sedimentation Control TESC ES-TESC-1-Silt-Fence.pdf(PDF, 122KB) ES-TESC-2-Temporary-Construction-Entrance.pdf(PDF, 147KB) ES-TESC-3-Typical-Sedimentation-Basin.pdf(PDF, 133KB) ES-TESC-4-Inlet-Protection.pdf(PDF, 109KB) ES-TESC-5-Catch-Basin-Inlet-Sediment-Trap.pdf(PDF, 173KB)
Standard Plans: Fire Prevention F-1-Fire-Hydrant-Assembly.pdf(PDF, 198KB) F-2-Fire-Hydrant-Guard-Posts.pdf(PDF, 124KB) F-3-Fire-Hydrant-Valve-Marker-Post.pdf(PDF, 128KB) F-4-Fire-Department-Connection.pdf(PDF, 123KB) F-5-Riser-Detail.pdf(PDF, 125KB) F-6-Fire-Department-Turnaround.pdf(PDF, 102KB)
Standard Plans: Critical Areas Native Growth Protection Act (NGPA) CA-NGPA-1-NGPA-Sign.pdf(PDF, 203KB) CA-NGPA-2-NGPA-Monument.pdf(PDF, 173KB) CA-NGPA-3-NGPA-Fence.pdf(PDF, 129KB)
Standard Plans: WSDOT Referenced Standards CB-Type-1-b5.20-03_e.pdf(PDF, 2MB) CB-Type-1L-b05.40-02_e.pdf(PDF, 258KB) Crosswalk-Layout-m15.10-01_e.pdf(PDF, 232KB) Curb-Ramp-Single-Direction-f40.16-03_e.pdf(PDF, 478KB) Misc-Details-for-Drainage-Structures-b30.90-02_e.pdf(PDF, 237KB) Sewer-Cleanout-b85.40-00_e.pdf(PDF, 140KB) Signal-Mast-Arm-Sign-Mounting-g30.10-04_e.pdf(PDF, 260KB) Replacement Standards Cement-Concrete-Driveway-Entrances-f80.10-04_e.pdf(PDF, 738KB) Curb-Ramp-Parallel-Direction-f40.12-03_e.pdf(PDF, 471KB) Curb-Ramp-Perpendicular-Direction-f40.15-04_e.pdf(PDF, 369KB) Ground-Mounted-Sign-Placement-g20.10-02_e.pdf(PDF, 137KB) Induction-Loop-Details-j50.15-01_e.pdf(PDF, 246KB) Induction-Loop-Wiring-Details-j50.18-00_e.pdf(PDF, 227KB) Loop-Splice-Details-j50.05-00_e.pdf(PDF, 249KB) Steel-Sign-Support-Connection-g25.10-05_e.pdf(PDF, 3MB) Steel-Sign-Support-Foundation-g24.50-05_e.pdf(PDF, 343KB) Type-1-Induction-Loop-j50.10-01_e.pdf(PDF, 172KB) Type-2-Induction-Loop-j50.11-02_e.pdf(PDF, 191KB) Type-3-Induction-Loop-j50.12-02_e.pdf(PDF, 179KB)
Standard Plans: Streets Curb and Gutter ST-CG-1-Concrete-Vertical-Curb-and-Gutter.pdf(PDF, 121KB) ST-CG-2-Precast-Mountable-Curb-Installation(PDF, 107KB) ST-CG-3-Concrete-Extruded-Curb.pdf(PDF, 108KB) ST-CG-4-Rolled-Curb-and-Gutter.pdf(PDF, 126KB) ST-CG-5-Vertical-to-Rolled-Curb-Transition.pdf(PDF, 107KB) Driveways ST-DW-1-Standard-Driveway-Entrance.pdf(PDF, 110KB) Roadway Sections ST-ROA-1-Typical-Roadway-Section-Arterial.pdf(PDF, 138KB) ST-ROA-2-Typical-Roadway-Section-Neighborhood-Street.pdf(PDF, 135KB) ST-ROA-5-Manhole-Adjustment-Detail.pdf(PDF, 113KB) ST-ROA-6-Survey-Monument.pdf(PDF, 130KB) Sidewalk ST-SID-1-Concrete-Sidewalk.pdf(PDF, 130KB) ST-SID-2-Curb-Ramp-Typical-Locations.pdf(PDF, 111KB) ST-SID-3-Pedestrian-Railing-Barrier.pdf(PDF, 132KB) ST-SID-4-Pedestrian-Railing-Barrier-Notes.pdf(PDF, 108KB) ST-SID-5-Rock-Wall.pdf(PDF, 133KB) Trenching ST-TRE-1-Pavement-Repair-for-Non-Arterial.pdf(PDF, 113KB) ST-TRE-2-Large-Pavement-Repair-for-Arterial.pdf(PDF, 119KB) ST-TRE-3-Typical-Trench-Section-In-Right-of-Way.pdf(PDF, 143KB) ST-TRE-4-Typical-Fiber-Communication-Trench.pdf(PDF, 126KB) ST-TRE-5-Pipe-Bedding-in-Trench.pdf(PDF, 115KB) ST-TRE-6-Typical-Trench-Compaction.pdf(PDF, 129KB) ST-TRE-7-Trench-Steel-Plate-Cover.pdf(PDF, 110KB)