[{"_1":2,"_87":-5,"_88":-5},"loaderData",{"_3":4,"_26":27},"root",{"_5":6,"_17":10,"_18":19,"_20":21,"_22":10,"_23":-5,"_24":-5,"_25":10},"user",{"_7":8,"_9":10,"_11":10,"_12":-5,"_13":-5,"_14":15,"_16":-5},"roles",[],"isAuthenticated",false,"isPremium","planName","subscriptionStatus","featureFlags",{},"insightsBudget","isDevelopmentHost","userPreferences",{},"recaptchaSiteKey","6LcvOJcUAAAAAHsB-gPGfGktcRlKpH7OTIU_dMTD","isImpersonating","impersonation","affiliateStatus","isFreedomPortal","routes/v2/article/layout",{"_28":29,"_30":31},"notFound",true,"relatedArticles",[32,75],{"_33":34,"_35":36,"_37":38,"_39":40,"_41":42,"_43":44,"_45":46,"_47":48,"_49":50,"_51":52,"_53":54,"_55":56,"_57":58,"_59":60,"_61":62,"_63":64,"_65":66,"_67":68,"_69":70,"_71":68,"_72":73,"_74":73},"mediaId",6329234,"mediaKeyId","2316380-694e91f43a91194246e88b725a7f24b7","parentId",2316380,"title","Environment committee hears CIP updates: pipeline work, outfalls and local drainage projects","audioSeconds",311,"startMs",201000,"endMs",512000,"viewUrl","/Search/View?dp=1&key=2316380-694e91f43a91194246e88b725a7f24b7&start=201&end=512","thumbnailUrl","https://assets.pipeline.soar.com/2316380-694e91f43a91194246e88b725a7f24b7/thumbnail_201000.jpg","articleUrl","/articles/6329234/Des-Moines-City/King-County/Washington/Environment-committee-hears-CIP-updates-pipeline-work-outfalls-and-local-drainage-projects","mediaUrl","https://secure.pipeline.soar.com/6329234-394f84e77e782709d4e285d3b4cde0e2/orig.mp4?Expires=1775589561&Signature=oVFFBcHmE~KI6MRK-d34V272UQZTOpZDts974g2JOSljwSX3K1jwDQV87akOC5nM8irJ8kNdt1uIaRJb-bszfbvqQRMMrwHfbjq8ILniyJF1F32TlXNc5Ovf1whOAlRSHrQls76DpaPO6XpH94Gh5bpy57E4XlPZyLy7HwjUuKSTvJq7VzbyAQKwnS90WYveLfwZQRVkX8JeBVBoEHYhSjqmQzDoCIZl4C5VGoaygGU~CjJ~ATFsMvuiZM1RfwcFBCdl8-uzhAj6uINY0yfAVW8DG1ylzWasOhIZourDj1xU8LPXoCKZMVjYwxuym~e-f5xoiJfQkSB3t9A6clYwMA__&Key-Pair-Id=KUT5TJCACFTXG","author","Des Moines City, WA","date","2025-02-14T13:55:46Z","article","The Des Moines City Council Environment Committee on Feb. 13 received a routine capital improvement project (CIP) update from surface water staff covering pipeline replacements, pond retrofits and drainage projects across the city.

Tyler Weakley, surface water manager, and Alex Johnson, surface water engineer, reviewed project status for items the utility funds or partners on. Highlights included 20 Fourth Avenue South pipeline replacement (currently in its second construction suspension; staff said the contractor is on-site and the project is planned to resume this summer with a goal to finish before the school year), combined work on Des Moines Memorial Drive and 16th Place and Marine View Drive (in construction, expected to finish between late Q1 and early Q2), and Kent/Des Moines & Sixteenth (in closeout with final payout received).

Johnson said the Sixth Place and 280 Seventh project has started design and will add new drainage and tie into the existing system. Marine View Drive pond retrofit design has also kicked off. The Deepdine outfall project is in final preparations for advertisement and is expected to be bid this month with anticipated completion by the end of summer; Johnson noted the city prefers work in the dry season. Massey Creek estuary work has been shelved because of utility easement and property challenges and its budget was reallocated to other projects. A Second Avenue project in the North Hill neighborhood has not started design; staff plan to kick off design in spring and build at a later date (schedule details for construction start were not specified).

Committee members asked for clearer risk indicators on the CIP map (one color currently combines schedule and budget risk) and requested separate markers for schedule and budget risk for public clarity. Councilmember Roxiger questioned whether fixes such as Marine View Drive pond retrofits would permanently resolve long-standing flooding near the TacoTime intersection; staff said the previously installed pump typically addresses the hydraulics and the retrofit will address water quality rather than solving hydraulic capacity, and said occasional pump malfunctions and complex hydrology mean a single retrofit is not a guaranteed permanent fix.

Ending: Staff said they will continue quarterly CIP updates and will provide additional mapping and clearer risk indicators in future reports.","mediaType","Video","parentTitle","Environment Committee Meeting 02/13/2025","oneSentenceSummary","Surface Water staff updated the committee on multiple capital improvement projects across Des Moines, including pipeline replacement at 20 Fourth Avenue South (in second suspension), construction closeout at Kent Des Moines & Sixteenth, upcoming bids for an outfall project, and shelving of Massey Creek work due to easements.","taxTitle","Des Moines City, King County, Washington","taxId",51807,"location","headline","","shortSummary",{"_33":76,"_35":36,"_37":38,"_39":77,"_41":78,"_43":79,"_45":80,"_47":81,"_49":82,"_51":83,"_53":84,"_55":56,"_57":58,"_59":85,"_61":62,"_63":64,"_65":86,"_67":68,"_69":70,"_71":68,"_72":73,"_74":73},6329239,"Des Moines Creek estuary design advances; council committee shown renderings, timeline and funding needs",2109,901000,3010000,"/Search/View?dp=1&key=2316380-694e91f43a91194246e88b725a7f24b7&start=901&end=3010","https://assets.pipeline.soar.com/2316380-694e91f43a91194246e88b725a7f24b7/thumbnail_901000.jpg","/articles/6329239/Des-Moines-City/King-County/Washington/Des-Moines-Creek-estuary-design-advances-council-committee-shown-renderings-timeline-and-funding-needs","https://secure.pipeline.soar.com/6329239-000438ed1207fec3894877d6caf01f98/orig.mp4?Expires=1775589561&Signature=NFIn095na-JmuLNXclvs0b1U7fnIwyx5STCqFLYOiYl7SZOQvyGtItuq3-TXbJ~Fo9CkWF50kj0ghLSWSPERR65IlsK1CbvzUmJPv4EvgXtOrZrCS15kiUVhOObPGnw~QuWi1B9Km0s53EXL0efzw2wsD9ew1UYFtHr8i-SP41vUT1ACZ-iav5sjXvgZxRKPE9H29g3ofHlAgR3x7TtwWAB8q~11wuFMdbMdPwUlEKWx8HaOL5fKmeXmXXw-IsqGJsNNL2SELHbe6BiHdZI8mylMaNvNnaqJfEZDCGygLkPAmhqwhDJfYsjbGCmnsVH8rVpYNdlHeY3CH61QeZ0U3w__&Key-Pair-Id=KUT5TJCACFTXG","The Des Moines City Council Environment Committee on Feb. 13 was shown new renderings and a refined schedule for the Des Moines Creek estuary restoration and public-space redesign, and staff said the project is funded only through 30% design and will need additional grants and permits before construction can proceed.

Tyler Weakley, surface water manager for Des Moines City, opened the briefing and introduced consultants from Parametrics, who showed plan views, low- and high-tide renderings and a planned fly-through video. Paul Fint, Parametrics project manager, and Nikki Redden, Parametrics surface water engineer, described the preferred alternative, how the different work areas fit together and design constraints such as utilities and access behind the seawall.

The consultants said the preferred design reduces the meadow area: the finished estuary footprint would reduce the meadow to about 31,000 square feet, with a possible reconnection of roughly 5,000 square feet in an upper area; Parametrics estimated that change represents about a 16% reduction in the meadow footprint. Council members asked about elevations; consultants said a proposed finished meadow elevation of about 14 feet would address most regular high tides and near-term sea-level rise impacts, compared with current high-tide elevations around 12.5 feet. The consultants cautioned that extreme events would still inundate the green, and that raising the meadow to higher elevations would trigger additional design iterations and higher costs.

Design detail: Parametrics said the estuary work would include excavation of channel veins to elevations near the 6-foot range so those channels are regularly inundated even at summer low tides; upland green areas would be at higher elevations (roughly 8 feet in the current concept). The team also described required revetments and seawall work to protect existing trails, roads and utility corridors; utilities behind the seawall will need relocation and will be a major design constraint.

Funding and timeline: Staff said the project is funded internally only through 30% design. Committee members were told staff will apply for additional grant funding this month to advance design beyond 30%. Paul Fint said the city is targeting final design in 2026 if grants and permitting proceed; consultants estimated construction implementation could take up to two years and that the work could be phased. Staff emphasized they will not begin construction on an element without funding to complete that element.

Permitting, cultural resources and sedimentation: Parametrics described cultural-resources and historic-review work as part of the design and permitting process and noted that some permits could take years. The team cautioned that estuary changes can alter where sediment deposits, and that sedimentation could require periodic removal depending on how the channel and tidal flows are altered.

Park impacts and programming: The consultants said construction access and staging would likely constrain park access during major work; staff noted the design team includes a park programmer to preserve the park's programming value while reconciling tradeoffs in geography and function.

Next steps: Committee members were told staff will bring a consultant contract to the full council under old business to fund design to 30% and that further grants and permitting will determine schedule for 60% and final design and for construction. The committee did not take a construction vote; design and construction will proceed only after further council actions, grant awards and permit approvals.

Ending: Committee members asked for cost-per-foot and other cost breakdowns for elevation changes as the design progresses; staff and the consultant said those cost iterations will become clearer at 30% and 60% design and will be shared in later briefings.","Consultants presented renderings and a phased design timeline for the Des Moines Creek estuary. Committee heard the meadow would shrink by about 31,000 square feet (roughly 16%), designers propose raising the meadow to about 14 feet to reduce routine tidal flooding, and construction timing will depend on permit approvals and grant funding.","actionData","errors"]

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Environment committee hears CIP updates: pipeline work, outfalls and local drainage projects

Des Moines Creek estuary design advances; council committee shown renderings, timeline and funding needs