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The following documents describe many of the project details, as well as the needs for which the project is designed. These documents were developed for the County Council approval process, which was completed in July of 2002. (Adobe Acrobat).
1. Transmittal Letter from Executive Sims to council
2. WLRD Presentation to council in support of Executive proposal (2.8 Mg)
4. Council Motion (project approval)
The Corps of Engineers and the City of Snoqualmie have entered agreements with King County that specify agency roles and responsibilities for completion of this project. Following are those agency agreements.
All of the required permits have been approved, and the Corps has advertised the project in two seperate construction contracts to prospective bidders. The first contract is for channel excavation, and the second is for bridge removal. Both of the Corps solicitations are available on-line and include the complete construction plans and specifications. Following is an excerpt of selected plan sheets in .pdf format, as well as links for the complete solicitation on the Corps web page.
1. Selected plan sheets (3.0 Mg)
2. Corps solicitation for channel excavation contractor (removed 12/09)
3. Corps solicitation for bridge removal contractor (removed 12/09)
The project is expected to reduce the depth and frequency of flooding in Snoqualmie, where more than 600 homes and most of the commercial area are subject to severe flood damages. The Corps estimates that the project will prevent more than half of the economic damages caused by this flood problem, with an average annual savings of $837,000. Total project cost is estimated at $7.65 million, of which the Corps will fund $4.40 million (58%).
Because the project will move flood water through the Snoqualmie area more readily, it may have a small adverse impact on downstream flood problems. This relationship was studied in detail by the Corps of Engineers. Their calculations show that downstream flooding may become as much as 0.1 foot deeper at the peak of a 100-year flood. Impacts would be smaller during lesser (more frequent) floods, and would diminish with distance from Snoqualmie. Still, this adverse impact is enough that the project includes a Downstream Assistance Program (DAP) that can help to address flood problems where this impact would occur.
The Snoqualmie Flood Reduction Project is proposed by the U.S. Army Corps of Engineers. King County and the City of Snoqualmie share the local sponsorship responsibilities for this Corps of Engineers project. Staff contacts at the three agencies are:
Tim Shaw, Project Manager, U.S. Army Corps of Engineers, 206-764-6978, firstname.lastname@example.org
Kirk Holmes, Public Works Director, City of Snoqualmie, 425-831-4919 ext. 12, email@example.com
Tom Bean, Senior Engineer, King County River and Floodplain Management Section, 206-296-8377.