Kent to have the entire levee system within city limits accredited<\/a> by the Federal Emergency Management Agency (FEMA) in order to remove properties behind the levee from FEMA flood maps to reduce development restrictions and flood insurance requirements in the Kent Valley.<\/p>\n<\/p>\nCity officials put aside funds the last two years from the storm water drainage utility fee to pay for the consultants. City revenue from the storm water fund comes from residential customers who pay a flat rate of $10.06 per month and from commercial storm drainage fees that vary based on property size, percentage of impervious surface and the basin in which the property is located.<\/p>\n<\/p>\n
County officials prefer a setback earthen levee that involves buying up large amounts of commercial and industrial property to allow the river to flow more naturally and provide a wider corridor for water in flood events. The county estimates costs for the levee setback range up to $63 million and will take up to 20 years to complete.<\/p>\n<\/p>\n
The levee debate involves the King County Flood Control District in addition to Kent and King County.<\/p>\n<\/p>\n
The County Council created the flood control district in 2007 as a countywide special purpose district to oversee the six major river systems that flow through King County. Those rivers are the South Fork Skykomish, Snoqualmie, Sammamish, Cedar, Green and White Rivers. The district is responsible for planning and funding maintenance and repairs of the flood control system.<\/p>\n<\/p>\n
After its formation, the flood district board adopted a new property tax assessment of 10 cents per $1,000 assessed valuation to fund projects. That tax brings in about $35 million per year.<\/p>\n<\/p>\n
The flood district also includes an Advisory Committee composed of about 15 members from cities that have experienced significant flooding. Many of the members are city mayors.<\/p>\n<\/p>\n
Dispute unexpected<\/strong><\/p>\n<\/p>\nTypically, Kent has worked smoothly with the flood district in other levee projects as well as receiving funding from the district to pay for the placement and removal of sandbags along the Green River during the past three years when the U.S. Army Corps of Engineers repaired the Howard Hanson Dam. The flood district spent about $2.5 million to install sandbags in Kent and $1.2 million to remove the sandbags, according to county officials.<\/p>\n<\/p>\n
Crews are installing a floodwall now along the Boeing Levee in Kent. That $2.7 million project includes a $2 million state grant to the city through the flood district.<\/p>\n<\/p>\n
“We’ve spent millions of dollars in Kent and other places and have never had a complaint before,” Patterson said about the Briscoe Levee dispute.<\/p>\n<\/p>\n
Mike Mactutis, city environmental engineering manager who helps oversee levee projects, said the city partners with the flood district and county on projects. But he said the flood district had no policy as far as getting the levees accredited by FEMA, so the city took that project on itself by hiring consultants to assess the levees and what repairs are needed. The flood district now has a policy to meet FEMA requirements.<\/p>\n<\/p>\n
Mactutis agreed with Patterson that the city and county worked smoothly together in the past.<\/p>\n<\/p>\n
“I’ve worked with them quite a few years and worked well,” Mactutis said. “This is just a difference of opinion on the floodwall and the short term versus the long term. Our priority is the short term to bring areas of the system up to the 100-year flood protection.”<\/p>\n<\/p>\n
Because of the dispute with the county about how to fix the Briscoe Levee, Mactutis said city officials decided to hire a second consultant to look at the project as well.<\/p>\n<\/p>\n
“We wanted to make sure we were doing the right thing,” Mactutis said as he stood atop the Briscoe Levee. “There was so much concern if the floodwall was safe that we had GEI (consultants) do a second report.”<\/p>\n<\/p>\n
Levee protects businesses<\/strong><\/p>\n<\/p>\nThe Briscoe Levee also sits as one of the most vital levees for flood protection in the valley.<\/p>\n<\/p>\n
“The one levee protects a huge area of Kent, Tukwila and Renton,” Mactutis said. “We need to make sure we’re doing this correctly.”<\/p>\n<\/p>\n
Besides the three-city impact, just adjacent to the 4,000 feet of city-proposed repairs there are 11 parcels with more than 540 jobs, 470,000 square feet of building space, and more than $44 million in assessed value, according to Kent officials.<\/p>\n<\/p>\n
Joseph Wartman, a University of Washington civil engineering professor who serves on the citizen\u2019s advisory committee for the King County Flood Hazard Management Plan update, reviewed the Briscoe Levee floodwall and levee setback proposals in April for the county.<\/p>\n<\/p>\n
Wartman, who did not analyze project costs, concluded that the levee setback would be the preferred option.<\/p>\n<\/p>\n
“Overall, it is my opinion that from both a technical and broader flood management perspective the setback scheme is preferable to the floodwall option,” Wartman wrote in his report.<\/p>\n<\/p>\n
Wartman called both plans “technically viable.” But he said the setback option “offers a number of practical benefits for long-term management and operations of the levee system.”<\/p>\n<\/p>\n
The floodwall system, Wartman wrote, “will stabilize critical portions of the existing levee system, but will not reduce toe erosion (slides) or long-term maintenance costs.”<\/p>\n<\/p>\n
Patterson said as a board member it’s difficult to determine who is right.<\/p>\n<\/p>\n
“We have experts on one side who say do one thing and experts on the other side who say do another thing,” Patterson said. “We are hiring a consultant from the outside who does not have ties to Kent or King County. They will come back with a recommendation.”<\/p>\n<\/p>\n
Kent officials hope the third-party consultant chooses the city’s proposal.<\/p>\n<\/p>\n
“Our hope is the third party decides the floodwall is more feasible and cost effective,” Mactutis said. “It can be done faster than purchasing all the businesses and relocating them.”<\/p>\n<\/p>\n
Grant money on the line<\/strong><\/p>\n<\/p>\nThe dispute between the county and Kent needs to be settled in order to get a $7 million state grant to repair the Briscoe Levee. The Legislature approved the grant during the last session but the grant could go away if no repair plan is established by the end of June.<\/p>\n<\/p>\n
Consultants must submit proposals to the county by Oct. 12 to get the contract to review the two levee proposals. County officials estimate the contract will cost between $15,000 to $19,900, according to county documents.<\/p>\n<\/p>\n
County staff plans to recommend a consultant to the flood district executive committee on Oct. 22. Work would begin by Nov. 1 with a draft report due by Jan. 18 and a full report to the executive committee on Jan. 28. The final report is due Feb. 1.<\/p>\n<\/p>\n
“That makes it really tough for us to get the project out to bid by the end of June,” Mactutis said about getting the state grant money.<\/p>\n<\/p>\n
King County’s proposal for hiring a consultant emphasizes the need to meet the state’s grant deadline. Flood district staff also pointed out in the proposal the wide-ranging dispute between Kent and the county.<\/p>\n<\/p>\n
“The city of Kent and King County disagree about the interpretation of the Corps guidelines for levee construction, the cost estimates for the respective proposals; the weaknesses of each proposal; and the public safety risks.”<\/p>\n<\/p>\n
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