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City of Bellevue, WA Utilities
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2018 Sewer Engineering Standard Details

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    Sewer Engineering Standards

    • 2025 Details
    • 2024 Details
    • 2023 Details
    • 2022 Details
    • 2021 Details
    • 2020 Details
    • 2019 Details
    • 2018 Details
    • 2017 Details
    • 2016 Details
    • 2015 Details
    • Previous Years Details

    2018 Sewer Engineering Standards

    Detailed Drawings


    S – 1STANDARD MANHOLE

    S – 1A STANDARD STRUCTURE BACKFILL

    S – 2TYPE 2 MANHOLE, 72” and 96”

    S – 3TYPE 3 MANHOLE, 72” and 96”

    S – 4OUTSIDE DROP STRUCTURE

    S – 5INSIDE DROP STRUCTURE

    S – 6MANHOLE UNDER 5 FEET DEEP

    S – 7NEW MANHOLE ON EXISTING SEWER

    S – 8MANHOLE GRADE ADJUSTMENT

    S – 9MANHOLE SECTION ADJUSTMENT

    S – 10MANHOLE CONE ADJUSTMENT (CONCENTRIC TO ECCENTRIC)

    S – 1124" MANHOLE RING AND COVER

    S – 1224" BOLT-LOCKING MANHOLE RING AND COVER

    S – 13SAFETY STEP AND PREFABRICATED LADDER

    S – 14TYPICAL TRENCH DETAIL

    S – 15PIPE ZONE BEDDING

    S – 16CLEANOUT TO GRADE

    S – 17SIDE SEWER LATERAL

    S – 17A SIDE SEWER LATERAL ON A NEW PVC MAIN

    S – 17BNEW PVC SIDE SEWER LATERAL ON EXISTING PVC MAIN

    S – 17CNEW PVC SIDE SEWER LATERAL ON EXISTING NON-PVC MAIN

    S – 18HOUSE SEWER CONNECTION

    S – 19SOIL CEMENT PIPE ANCHORS

    S – 20PIPE STAKE ANCHOR ASSEMBLY

    S – 21SIDE SEWER LATERAL RELOCATION

    S – 22TIMBER BAFFLE/HILL HOLDER

    S – 23LAKE LINE CLEANOUT AND CHECK VALVE ASSEMBLY

    INSTALLATION

    S – 24LAKE LINE CLEANOUT AND CHECK VALVE ASSEMBLY

    INSTALLATION AT OR BELOW HYDRAULIC GRADIENT

    S – 25CLEANOUT TO GRADE FOR LAKE LINE CONNECTION

    S – 26CHECK VALVE ASSEMBLY FOR JOINT USE SIDE SEWER

    (4" TO 8" DIAMETER)

    S – 27SAMPLING TEE

    S – 28100 GALLON BAFFLE TYPE OIL/WATER SEPARATOR

    S – 29450-900 GALLON BAFFLE TYPE OIL/WATER SEPARATOR

    S – 301100-5000 GALLON BAFFLE TYPE OIL/WATER
     

    S – 31GREASE INTERCEPTOR

    S – 32UNCOVERED PAVED VEHICLE SERVICE AREA DRAINAGE

    S – 33CASING INSTALLATION

    S – 34SINGLE HOME SEWER PUMP SYSTEM

    S – 35PROJECT SIGN

    S – 36TAPPING TEES FOR LAKELINE SEWER CONNECTION

    S – 37LAKELINE LATERAL EXTENSION

    Reasonable Accommodation

    For alternate formats, interpreters, or reasonable modification requests please phone at least 48 hours in advance 425-452-6800 (voice) or email servicefirst@bellevuewa.gov. For complaints regarding modifications, contact the City of Bellevue ADA, Title VI, and Equal Opportunity Officer at ADATitleVI@bellevuewa.gov.

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