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    • This is a Non-Federal dataset covered by different Terms of Use than Data.gov.

    Peak Control Infrastructure

    Metadata Updated: September 7, 2025

    Capacity-constrained is defined by the Stormwater Code, SMC 22.801.040 as a drainage system that the Director of SPU has determined to have inadequate capacity to carry drainage water. There are three distinct areas that compromise what is currently mapped as capacity-constrained, 1) the entire network comprising the informal drainage system consisting of the intermittent ditch and culvert network as these were never engineered, they are inherently capacity constrained. 2) The infrastructure contained in the Densmore Basin which discharges to a King County storm drain which was not designed with capacity to convey runoff from the increased density from additional development. 3) a portion of the public storm drain system on Capitol Hill upstream from the maintenance hole at the intersection of Pike St & Melrose Ave, there is a hydraulic restriction in this maintenance hole which leads to an extremely elevated hydraulic grade line and associated localized surface flooding. For more information on this Code please see, https://water.epa.gov/polwaste/nps/upload/nps-ordinanceuments-seattle-code.pdf

    Access & Use Information

    Public: This dataset is intended for public access and use. Non-Federal: This dataset is covered by different Terms of Use than Data.gov. License: No license information was provided.

    Downloads & Resources

    Dates

    Metadata Created Date February 28, 2025
    Metadata Updated Date September 7, 2025

    Metadata Source

    Harvested from Seattle JSON

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date February 28, 2025
    Metadata Updated Date September 7, 2025
    Publisher City of Seattle ArcGIS Online
    Maintainer
    Identifier https://www.arcgis.com/home/item.html?id=a40a865e08ba4415b8b873e285b08238&sublayer=0
    Data First Published 2024-07-26
    Data Last Modified 2025-09-02
    Category geospatial
    Public Access Level public
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Metadata Catalog ID https://cos-data.seattle.gov/data.json
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Harvest Object Id 4945a516-b459-4bc2-813f-bfae997cd744
    Harvest Source Id f61de7a2-69cf-40a9-a1bc-dd9edb8f3fe5
    Harvest Source Title Seattle JSON
    Homepage URL https://data-seattlecitygis.opendata.arcgis.com/datasets/SeattleCityGIS::peak-control-infrastructure-1
    Metadata Type geospatial
    Old Spatial -122.4148,47.4926,-122.2368,47.7647
    Source Datajson Identifier True
    Source Hash 09b5fd9c8c45e3faff6766c482ece48632822a686c23427ffc176fa697330ef3
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": -122.4148, 47.4926, -122.4148, 47.7647, -122.2368, 47.7647, -122.2368, 47.4926, -122.4148, 47.4926}

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