Item 7a Supp
Item No. ____7a_Supp__________ Date of Meeting: _October 20, 2009 Impacts to the Port of Seattle and Neighboring Businesses Howard Hanson Dam was built in 1962 for flood control in the Kent Valley The Valley is now home to industrial, commercial, manufacturing, retail and residential units Plus roads, bridges, railroad lines, electrical substations, fuel pipelines, sewage treatment plants, hospitals, schools and more Damage discovered during the Jan. "09 rain event will limit the dam"s effectiveness until a permanent repair is in place A repeat "09 rain event will result in significant flooding downstream '- Howard.A Hanson V Dam and Reserv'oibr "lstoy of Local Hooding 1950's Inflow to the dam reservoir peaked at 30,500 cubic feet per second (cfs); all outlets closed Pool of Record - elevation 1,188.9 feet (above sea level) Dam water storage capacity kept the Auburn gauges below 12,000 cfs (flood stage) Overall, the dam kept river flow rates just below the over-topping/breach level May 2009 tests showed that the Dam can no longer safely provide this protection 1206"_______Spillway 1189"_______Record Pool, Jan 2009 1167"_______Conservation Pool, May 2009 test 1155"_______Current "safe operation" level 1075"_______"Empty" Pool Army Corps is installing grout as a temporary fix while searching for a permanent solution Cannot predict how well temporary "fix" will work, cannot fully test until next spring Odds of flooding as high as 1:3 for a single event during the 2009-10 season King County and City of Renton have pre- declared an emergency State Office Emergency Management at Alert Level 2 May take 5 years or more for a permanent solution, probably a cutoff wall 400,000 sandbags have been ordered As many as 35,000 people may need to be evacuated from flood plain County spending $35 million on mitigation efforts Proposed raising of levees may not be possible FEMA says severe flooding in the area could cause in excess of $4 billion in damage NOAA has predicted we are in a mild El Nino this winter El Nino can mean average precipitation totals may be slightly lower for the year Does not mean we will not have rain and lots of it In 4 of the last 5 El Nino years, there has been major flooding in the region Scenario 1: 17,600 cfs river flow rate at Auburn gauge Scenario 2: 12,800 dam discharge rate (this is water released from the dam, it will combine with an unknown volume of water from downriver tributaries resulting in a river flow rate higher than the 17,600 in Scenario 1 Local flood planning has included a 25,000 cfs level as well SCENARIO 1: Losses in the flood plain with intact levees Direct building economic losses Overtopping only, no breaks in levee SCENARIO TWO: At 12,800 HH Dam discharge rate Green = $1m - $5m Red = $10m $68m SEAPORT: Increased siltation in the Turning Basin and navigable waterway Large debris and hazards to navigation washed downriver into Duwamish and Elliott Bay Potential damage to vessels at Harbor Island Marina - including Police Boat Storm water back-up at area facilities Contamination of area facilities if upriver Waste Water Treatment Plant fails AIRPORT Electrical power outages at airport and other facilities that could last several days or weeks Shut down of jet fuel lines to airport A recent study showed of all airport employees (POS and all others ) live in impacted areas either in the flood zone, or use transportation routes through it ALL Disruption to transportation routes for trucks, trains, bridges and roadways Commuters from the south will have difficulty getting to work Closure of Distribution Centers in Valley may impact movement of freight and air cargo Staff absenteeism for employees living in potential evacuation areas 80% of the region"s food storage is in the valley Warehouse distribution system is the largest in the Northwest so not possible to just move things elsewhere State of Alaska depends on cargo flights from SeaTac for winter supplies Local companies and jurisdictions are looking to the POS for assistance, e.g. relocation sites County estimates as many as 35,000 people may need to be evacuated from the Valley They are planning on needing shelter accommodations for up to 5000 King County has requested rental of Smith Cove Cruise Terminal as a temporary shelter POS Working groups are being established for: Keeping staff, customers and public informed Identifying potential staffing problems Keeping air cargo and freight moving through the area Land use issues Utility concerns electricity, natural gas, jet fuel, waste water Debris management, clean-up activities Ensuring coordination of agencies and that Port issues are considered in the regional planning process Although PSE has plans for maintaining electric power supply to STIA, there is increased risk of extended interruption RCW 39.04 and Res 3605 recognize emergency in "real, immediate threat to the proper performance of essential functions" CEO declared emergency on October 16 Authorizes procurements and staff effort to establish emergency backup power generation at STIA
Limitations of Translatable Documents
PDF files are created with text and images are placed at an exact position on a page of a fixed size.
Web pages are fluid in nature, and the exact positioning of PDF text creates presentation problems.
PDFs that are full page graphics, or scanned pages are generally unable to be made accessible, In these cases, viewing whatever plain text could be extracted is the only alternative.