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SR 520 Program - Costs, Funding and TollingMajor transportation projects often require innovative and complex funding solutions. The SR 520 Bridge Replacement and HOV Program is no different. This page presents an overview of how we plan to deliver a new, safer floating bridge and improvements along SR 520 from I-5 in Seattle to SR 202 in Redmond.How will WSDOT pay for the SR 520 Bridge Replacement and HOV Program?What are the current program costs?In 2009, the Washington State Legislature set a program budget of $4.65 billion. Our latest project plans, including the west side preferred alternative, are within this program budget.What is currently funded?Gov. Gregoire and the Washington State Legislature have secured a variety of state and federal funding sources, including tolling the existing floating bridge, to help pay for the SR 520 program. We are currently funded to move forward with: Constructing a new, safer floating bridge and landings.Building a new pontoon construction facility in Grays Harbor.Building pontoons at that facility.Beginning construction on the Eastside Transit and HOV Project.Continuing to design the west side of the corridor, from I-5 to the floating bridge.SR 520 program budget$4.65 BFunding received to date$2.62 BState funding (Nickel and TPA)$0.55 BFederal funding$0.07 BSR 520 Account (tolling and future federal funding)$1.85 BDeferred sales tax$0.15 BUnfunded need (includes $0.15 B in deferred sales tax)$2.03 BCost accountability: 1997 to 2011Pile driving in Aberdeen for the Pontoon Construction ProjectFrom 1997 to January 2011, WSDOT invested $377 million on efforts to replace the aging SR 520 floating bridge. With these funds we have made substantial progress on corridor planning, preliminary engineering, design, environmental review, and right-of-way purchases. We have also started construction on new SR 520 bridge pontoons and Eastside transit and HOV improvements, and are currently in the contracting process for the new SR 520 floating bridge. The Legislature has established a program limit of $4.65 billion. To date, the SR 520 Program has spent $355 million, or approximately under 8 percent of the program cost limit. Additionally, $22 million was spent on the Trans-Lake Study. The SR 520 program has followed strict procurement and financial reporting protocols, including quarterly financial updates. Financial oversight is provided by WSDOT management, the Governor's Office of Financial Management, the Washington State Legislature and the Federal Highway Administration.
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不理闲事，不听废话，低头做事，抬头看路！均属个人观点，与所在机构无关 超赞 赏 visatousa 0$(VIP 0) 4,2302011-08-30#2 回复: 西雅图520大桥项目公开信息曝露。SR 520 Bridge Program Map SR 520 Bridge Program: Medina to SR 202 Eastside Project Map
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不理闲事，不听废话，低头做事，抬头看路！均属个人观点，与所在机构无关 超赞 赏 visatousa 0$(VIP 0) 4,2302011-08-30#3 回复: 西雅图520大桥项目公开信息曝露。SR 520 Bridge Program News Photo gallery Photos of Eastside construction Pontoon Construction Project casting basin constructionMore SR 520 photos available on Flickr Video library SR 520 YouTube video links [ame="http://www.no video.com/watch?v=nCV7COUSs0k"][/ame]I-5 to Medina: Bridge Replacement and HOV Project [ame="http://www.no video.com/watch?v=-1ZQF6UIKos"][/ame]Medina to SR 202: Eastside Transit and HOV Project [ame="http://www.no video.com/watch?v=tOqdzAQkHbI"][/ame]Pontoon Construction Project Groundbreaking More videos August 2011 The SR 520 bridge is reopened to traffic after a busy weekend of workCrews reopened the SR 520 bridge this morning after installing a new fish-passable culvert and building a median work zone at Evergreen Point Road.View photos of the weekend work.The next SR 520 floating bridge and Eastside construction closure is scheduled the weekend of Sept. 16-19.Contractor team has best value for replacing the aging and vulnerable SR 520 floating bridge Kiewit-General-Manson's bid price of $586.5 million for construction of a new, six-lane floating bridge is $163.5 million less than the upset price of $750 million included in the request for proposals.We plan to begin construction on Lake Washington in 2012, with the goal of opening a new, safer floating bridge to drivers as soon as December 2014.Read more about the team.Federal approval received for SR 520 projectAfter 14 years of design and analysis, we've received federal approval for our plans to replace the aging and vulnerable SR 520 floating bridge with a safer and more reliable six-lane bridge and highway.The Federal Highway Administration signed the Record of Decision, which outlines mitigation commitments, and allows WSDOT to further project design and obtain construction permits.U.S. Transportation Secretary Ray LaHood says: "Reaching this important milestone brings Washington closer to improving safety and easing congestion for the thousands who depend on the SR 520 floating bridge every day."Watch pontoon casting basin constructionWatch the work as it happens via our construction web camera.Crews have completed pouring the basin slab that will form the foundation of a concrete pontoon construction facility in Aberdeen.Photos are available on our Flickr page.SR 520 newsroom - recent press releases Aug. 22, 2011 - Fun and games everywhere but the highways Aug. 26-29 SEATTLE Travelers heading to a video game convention, sporting events and a 10k race in Seattle this weekend, Aug. 26 through 29, can expect major traffic congestion as construction crews close State Route 520. More ... Aug. 10, 2011 - Bids opened for new SR 520 floating bridge SEATTLE Kiewit-General-Manson, A Joint Venture, submitted the apparent best combination of bid price and technical proposal for replacing the aging and vulnerable State Route 520 floating bridge, according to tallies calculated today by the Washington State Department of Transportation (WSDOT). Kiewit-General-Manson’s bid price of $586.5 million for construction of a new, six-lane floating bridge is $163.5 million less than the upset price of $750 million included in the request for proposals. WSDOT staff analyzed and scored proposals from three prequalified teams vying to design and build the new bridge. Technical scores were combined with bid prices to determine the team with the apparent best value for the project. More... Aug. 4, 2011 - SR 520 project receives federal approval SEATTLE After 14 years of design and analysis, the Washington State Department of Transportation (WSDOT) received federal approval for its plans to improve State Route 520 including replacing the aging and vulnerable floating bridge with a safer and more reliable six-lane bridge and highway. On Thursday, the Federal Highway Administration (FHWA) signed a record of decision, which finalizes the environmental process and allows WSDOT to further design the I-5 to Medina: Bridge Replacement and HOV Project and obtain construction permits. This summer, WSDOT plans to award a contract to replace the floating bridge the most vulnerable structure in the corridor. More ... E-mail update - Aug. 18, 2011 Applications due Aug. 22 for Seattle SR 520 urban design process Earlier this month, we launched the SR 520 Seattle Community Design process, a unique opportunity for members of the public to help develop and incorporate comprehensive, sustainable design methods that will reconnect Seattle neighborhoods and improve the new SR 520 corridor. We plan to select eight to 10 individuals to work with us alongside our partner agencies in a series of workshops starting in September. Applications must be received by 5 p.m. Aug. 22. Visit us online for details and to submit an application. Questions? Email us at [email protected]. Driver alert: SR 520 floating bridge closing Aug. 26-29 Drivers should plan ahead for heavy congestion the weekend of Aug. 26-29 when Eastside construction will completely close the SR 520 floating bridge and highway from I-405 to Montlake Boulevard in Seattle. During the closure, crews will construct a fish-passage culvert east of 84th Avenue Northeast, shift lanes near Evergreen Point Road, and complete other time-sensitive construction activities such as installing barrier and striping, and repairing potholes. Drivers are encouraged to use alternate routes, and detour signs will be posted around the corridor. The most up-to-date SR 520 construction information is found through our Eastside project page, where we also have a map of this month’s work (pdf 284 KB).
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不理闲事，不听废话，低头做事，抬头看路！均属个人观点，与所在机构无关 超赞 赏 visatousa 0$(VIP 0) 4,2302011-08-30#4 回复: 西雅图520大桥项目公开信息曝露。SR 520 Bridge Facts SR 520 bridge heightHigh capacity transit and the future SR 520 bridge SR 520 bridge lane configuration and width information SR 520 pontoon factsFloating bridge facts Quick facts about the existing SR 520 bridge SR 520 bridge height What will be the height of the new SR 520 floating bridge? In the January 2010 supplemental draft environmental impact statement, we evaluated a new SR 520 floating bridge that would be approximately 30 feet above the water. Based on community feedback, we lowered the height of the floating bridge to approximately 20 feet, included in the preferred alternative that we announced in April 2010. Comparison graphics of the existing floating bridge and the new floating bridge are below. High capacity transit and the future SR 520 bridge What is the current plan to accommodate future high capacity transit on the new SR 520 floating bridge? In 2008, a transit strategy was developed by WSDOT, King County Metro, and Sound Transit, in cooperation with the University of Washington. The plan is outlined in the SR 520 High Capacity Transit Plan, published in 2008. The proposed transit strategy for the SR 520 corridor includes a network of bus rapid transit lines that will be operational when the new corridor opens to traffic. There will be opportunities for rail-to-bus transfers at the future Montlake Multimodal Center, which will include the Sound Transit U-Link line, located near Husky Stadium and the UW Medical Center. In addition to bus rapid transit on SR 520, voters in the Puget Sound region approved Sound Transit 2 in November 2008. This funding package included operating light rail across Lake Washington on I-90 and over 100,000 additional transit service hours to further develop and support bus rapid transit in the SR 520 corridor. Will the new SR 520 floating bridge be able to accommodate light rail? Yes. WSDOT engineers have designed the new SR 520 floating bridge so that additional supplemental pontoons could be added in the future to support the weight of light rail. As shown in the graphics below, light rail could be accommodated in the future by converting the transit/HOV lane to light rail, or adding more width to accommodate light rail in each direction in addition to the 4+2 general-purpose and transit/HOV lanes. Adding light rail to the SR 520 floating bridge would require analysis of transit connections and routes, additional funding, regional decision-making, and a separate environmental review process. How much will it cost to add light rail to the floating bridge? First there is the cost of time. The state Attorney General’s office and the Federal Highway Administration estimate that an additional two years of time would be necessary to conduct the required environmental analysis. This would be essential since the current analysis assumes the four general-purpose and two transit/HOV lane configuration and does not address light rail. Secondly, it would cost between $150 million and $200 million to construct the 30 additional pontoons and to install them on the floating bridge, along with the 77 pontoons required for the six-lane alternative. There would be other costs associated with the bridge deck expansion and other infrastructure, including rail lines. Bridge layout diagrams The planned SR 520 bridgeWith two general-purpose lanes and one transit/HOV lane in each direction.Potential SR 520 bridge configurations that accommodate light railScenario 1: With light rail displacing the transit/HOV lanes. Scenario 2: With light rail in addition to the transit/HOV lanes. Note: Each scenario would require WSDOT to construct an additional 30 pontoons to support the weight of light rail. Adding light rail to the SR 520 floating bridge would also require analysis of transit connections and routes, additional funding, regional decision-making, and a separate environmental review process. Pontoon diagrams Pontoon diagram for the proposed SR 520 bridge, with two general-purpose lanes and one transit/HOV lane in each direction. Total pontoons: 77 Bridge deck width: 115 feet Pontoon diagram for an SR 520 bridge that includes 30 additional pontoons to support the weight of light rail. Additional pontoons are noted in orange. Total pontoons: 107Bridge deck width: 115-150 feet SR 520 bridge lane configuration and width information What is the current lane configuration of SR 520? Typical width: 60 feet The current configuration across the SR 520 bridge includes:Two general-purpose lanes in each direction, with an 11-foot inside lane and a 12-foot outside lane.One 2-foot outside shoulder in each direction.One 1-foot inside shoulder in each direction.One 2-foot median barrier.A 3-foot maintenance sidewalk on the south side of the bridge.What are WSDOT’s plans for the lane configuration of the new SR 520?Typical width: 115 feet As required by legislation and analyzed in the SDEIS, WSDOT will construct a six-lane SR 520 corridor from I-5 in Seattle to SR 202 in Redmond. The lane configuration across the new SR 520 bridge includes:Two 11-foot general-purpose lanes in each direction.One 12-foot 3+ transit/HOV lane in each direction.One 10-foot outside shoulder in each direction.One 4-foot inside shoulder in each direction.One 2-foot median barrier.A 14-foot bicycle/pedestrian path on the north side.How does WSDOT plan to build pontoons to replace the SR 520 bridge? In 2009, we requested bids from contractors interested in building pontoons for the new SR 520 floating bridge. As part of the contracting process, we required the contractor to design pontoons that would accommodate three potential configuration scenarios, including a possible option for high capacity transit that could be pursued in the future by the region. Three pontoon construction scenarios: 1. Rapid replacement of four-lane capacity in case of catastrophic failure. A four-lane bridge with two 11-foot-wide lanes in each direction for general-purpose traffic. This action is analyzed in the Pontoon Construction Project Draft Environmental Impact Statement, released in May 2010.2. New six-lane floating bridge. A six-lane bridge as described above, with two 11-foot-wide lanes in each direction for general-purpose traffic and a 12-foot-wide lane in each direction for a transit/HOV lane. Also adds a 14-foot bicycle and pedestrian path and safety shoulders. This action is covered in the I-5 to Medina: Bridge Replacement HOV Project Supplemental Draft Environmental Impact Statement released in January 2010.3. Future high capacity transit. We have planned to accommodate two potential high capacity transit scenarios: 1. A six-lane bridge for light rail or dedicated bus rapid transit. 2. Displace the transit/HOV lane in each direction to accommodate potential future light rail or dedicated bus rapid transit. Either high capacity transit scenario would require additional regional decision-making and an environmental review process in the future. Lane and shoulder width configurations would be determined as part of a future regional decision-making process. What are WSDOT’s current pontoon construction plans? In January 2010, WSDOT awarded a design-build contract to Kiewit-General Joint Venture to design and build enough pontoons to replace the existing four-lane bridge (as described in the first scenario listed above). This work includes a total of 23 large pontoons and 10 smaller stability pontoons. These pontoons will be stored in the Grays Harbor area until they are needed either for the rapid replacement of the facility as a result of a catastrophic failure or for the planned SR 520 bridge replacement. The design-build contract does not include towing pontoons to Lake Washington or construction of the new roadway. SR 520 pontoon facts New SR 520 bridge pontoons will be approximately 28 feet tall, 75 feet wide and 360 feet long -- as long a football field. One single longitudinal bridge pontoon is a little over 11,000 tons, or approximately equal to 23 Boeing 747 jets. top Floating bridge facts How do floating bridges float?Floating bridges are made of large water-tight concrete pontoons connected rigidly end-to-end, upon which the roadway is built. Despite their heavy concrete composition, the weight of the water displaced by the pontoons is equal to the weight of the structure (including all traffic), which allows the bridge to float. How are floating bridges constructed?Individual bridge pontoons are usually built on dry land next to a waterway, then floated and towed like barges to the bridge site. They are connected to grounded approach structures on each end, starting at the edge of the floating structure and then pieced together toward the eventual bridge’s center. The pontoons are held in place by enormous steel cables generally hundreds of feet long that are connected to anchors buried deep in the lakebed. For more information and to view an example of a floating bridge under construction, visit the Hood Canal Bridge Project Web site. Why is WSDOT building a floating bridge over Lake Washington as opposed to a conventional suspension bridge? A conventional suspension bridge over Lake Washington would not work for several reasons:Suspension bridges need to travel in a fairly straight line. Because SR 520 is a curved corridor, a suspension bridge would not be possible.The deepest point in Lake Washington is 214 feet deep, and the bridge’s support towers would have to be approximately 630 feet in height, nearly the height of the Space Needle, to support the bridge. These massive towers would be out of character with the surroundings because it would create more noise and block views.Conventional fixed bridges, such as the new bridge over the Tacoma Narrows, are expensive to build in deeper waters with soft beds, such as Lake Washington.Where are other floating bridges?Washington State is the floating bridge capitol of the world with the four longest and heaviest floating bridges. They are the SR 520 Evergreen Point Bridge, the I-90 Lacey V. Murrow Bridge, the I-90 Homer M. Hadley Bridge, and the SR 104 Hood Canal Bridge. In 1957, a concrete floating bridge was built across Lake Okanagan at Kelowna in south central British Columbia, Canada. Its floating length is 2,100 feet (640 meters) and its design is very similar to the Lacey V. Murrow Bridge. The Demerara Harbor Bridge in Georgetown, Guyana, is another floating bridge. It is made of steel pontoon units and extends 6,074 feet (1,851 meters). Norway has two large floating bridges the Bergsoeysund Floating Bridge in Kristiansund, More og Romsdal and the Nordhordland Floating Bridge. Another long-time floating bridge site is the Galata Floating Bridge in Istanbul, Turkey. How do earthquakes affect the floating section of the SR 520 bridge?The floating section of the SR 520 bridge is not affected directly by ground shaking from earthquakes because is built on pontoons that are anchored to the bottom of Lake Washington. Some very deep low-frequency earthquakes can cause a seiche, or a surface wave similar to a tsunami. A seiche in Lake Washington could cause the floating bridge to bend and heave at the lake surface, adding large loads of pressure to the pontoons and anchor systems. A seiche in Lake Washington could also create an underwater landslide that could cause the pontoon anchors to slip or break. Typically the waves from a seiche create less stress in the pontoons than wind-induced waves from a storm that occurs once every 100 years. How do windstorms and waves affect floating bridges?Wind and wave forces are typically the controlling forces in the design of floating bridges. A major factor in wind and wave effects on floating bridges is called the fetch. The fetch is the unobstructed clear distance over the water that wind can travel to the bridge. The longer the fetch, the higher the wind and wave forces will be. In Lake Washington the critical fetch is to the southwest of the bridge, since the largest storms historically come from the southwest. Wind and wave forces cause the pontoons to bend, heave and twist, creating large stresses in the pontoons and anchor system. If a 100-year storm event were to occur, the pontoons are designed to prevent large cracks from developing that would allow water to leak in and sink the bridge. top Quick facts about the existing SR 520 bridge What is the official name of the floating bridge?</B>The official name of the SR 520 floating bridge is the Governor Albert D. Rosellini Bridge - Evergreen Point. How wide is the current bridge?The current bridge is 60 feet wide. How long is the floating section of the bridge?The floating section of the SR 520 bridge is 1.42 miles (7,497 feet) long, making it the longest floating bridge in the world. How many pontoons support the current bridge?The current bridge is supported by 33 bridge pontoons. Each pontoon is about as long as a football field (360 feet) and 16 feet tall. How many anchors hold the pontoons in place?The bridge pontoons are held in place by 62 anchors attached with 2-3/16 cables. (Anchors on the pontoons that connect with the east and west approaches require thicker cables. Those cables are 2-3/4" inches thick.) How much do the anchors weigh?A standard anchor for the SR 520 bridge pontoons weighs 77 tons, which is more than 10 male African elephants. How deep is Lake Washington?Lake Washington is 200 feet deep under the drawspan of the current floating bridge. The deepest point in Lake Washington is 214 feet deep. When did the existing bridge open?We opened the existing bridge to traffic on Aug. 28, 1963. How long did the tolls last when the bridge opened in 1963?We ended tolling on the existing bridge on June 22, 1979, less than 16 years after the bridge opened. How many vehicles use the current bridge each day?Every day, approximately 115,000 vehicles use the SR 520 bridge to cross Lake Washington. How many vehicles did we expect to cross the existing bridge each day when we designed it?The current bridge was designed to carry 65,000 vehicles per day. What windspeed was the existing bridge designed to withstand?The existing bridge was designed to withstand 50-70 mph winds. Why do you close the bridge to traffic during severe windstorms?We close the bridge to traffic in order to open the drawspan, which relieves pressure on the bridge from wind and wave action during windstorms. The criteria for closing the bridge to traffic and opening the drawspan is 50 mph gusts sustained for 15 minutes. When a 40 mph gust is sustained for one minute, a warning alarm alerts crews to come to the bridge for inspection and monitoring. As with all WSDOT bridges, our experienced crews can close the bridge anytime they deem it unsafe, or when there is a potential for damage. You can check current conditions at the SR 520 bridge on the Web. What repairs and retrofits have been made on the current bridge?2006 - Replaced drawspan anchor bolts sheared off during storms earlier in the year. The anchor bolts hold the drawspan closed. 2000 - Emergency repairs to column damage. 1998 - Seismic retrofit, cable post tensioning, wave deflectors. 1997 - Pontoon bolts and crack seal. 1993 - Storm damage repair of pontoon cracks. How many cracks in the bridge pontoons have been repaired?Crews have repaired more than 30,000 linear feet of cracks since the 1993 Inaugural Day storm.
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不理闲事，不听废话，低头做事，抬头看路！均属个人观点，与所在机构无关 超赞 赏 visatousa 0$(VIP 0) 4,2302011-08-30#5 回复: 西雅图520大桥项目公开信息曝露。StatusAugust 2011Kiewit-General-Manson submitted the best combination of bid price and technical proposal for replacing the aging and vulnerable SR 520 floating bridge.Kiewit-General-Manson's bid price of $586.5 million for construction of a new, six-lane floating bridge is $163.5 million less than the upset price of $750 million included in the request for proposals.We plan to begin construction on Lake Washington in 2012, with the goal of opening a new, safer floating bridge to drivers as soon as December 2014.Read more about the team.Federal environmental approval received for I-5 to Medina projectAfter 14 years of design and analysis, we've received federal approval for our plans to replace the aging and vulnerable SR 520 floating bridge with a safer and more reliable six-lane bridge and highway.The Federal Highway Administration signed the Record of Decision, which outlines mitigation commitments, and allows WSDOT to further project design and obtain construction permits.U.S. Transportation Secretary Ray LaHood said: "Reaching this important milestone brings Washington closer to improving safety and easing congestion for the thousands who depend on the SR 520 floating bridge every day."Permitting updateView the latest on permits for the I-5 to Medina project.Overview The I-5 to Medina: Bridge Replacement and HOV Project will replace the interchanges and roadway between I-5 in Seattle and the eastern end of the floating bridge. Why is WSDOT pursuing this project?About 115,000 vehicles and more than 190,000 people cross Lake Washington every day on the SR 520 floating bridge. It’s a key regional route for commuters and freight. After floating for nearly 50 years, the four-lane bridge is often clogged by traffic and is showing its age. The floating bridge pontoons are vulnerable to windstorms, and bridge support columns are vulnerable to earthquakes. The End ResultThe I-5 to Medina Bridge Replacement and HOV Project includes a new floating bridge and highway with six lanes, including two general-purpose lanes and one new transit/HOV lane in each direction. The project also takes key steps to get ready for future light rail, help manage traffic in the Arboretum and transform the future corridor from Montlake to I-5 into a city parkway with landscaped lids and medians.Project BenefitsThe new SR 520 corridor through Seattle will:Provide transit connections and priority.Create a pedestrian-friendly urban interchange at Montlake Boulevard.Restore park area and connections next to the Washington Park Arboretum.Reduce noise levels from the Portage Bay Bridge.Be ready for light rail if the region chooses to fund it in the future.What is the project timeline?Spring 2011: Publish final environmental impact statementSummer 2011: Received Record of DecisionSummer 2011: Select contractor team for new SR 520 floating bridge2012: Begin construction of floating bridge2014: Target date to open new floating bridge to driversThe schedule for constructing the segments of the corridor west of Lake Washington is pending additional funding. Financial InformationWe are moving forward with construction on a new SR 520 floating bridge, which is fully funded by a variety of state and federal sources, including SR 520 tolling that is set to begin in December 2011.We are continuining to work with the Legislature to fund the elements of the project from I-5 to the floating bridge.Visit the SR 520 Costs, Funding and Tolling page for additional information.
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不理闲事，不听废话，低头做事，抬头看路！均属个人观点，与所在机构无关 超赞 赏 visatousa 0$(VIP 0) 4,2302011-08-30#6 回复: 西雅图520大桥项目公开信息曝露。SR 520 Bridge Program: New SR 520 Floating Bridge Simulated rendering of the new SR 520 floating bridge.What are the key features of the new SR 520 floating bridge? When will WSDOT open the new floating bridge? How will WSDOT build the new floating bridge? Where will WSDOT connect the new floating bridge? What are the key features of the new SR 520 floating bridge? A safer structure that is resistent to windstorms up to 92 mph.Two general-purpose lanes and one transit/HOV lane in each direction.Wider, safer shoulders that will allow vehicles to pull over in the case of a breakdown.A 14-foot-wide bicycle and pedestrian path on the north side of the bridge.Ability to accommodate future light rail.When will WSDOT open the new floating bridge? The target date to open a new floating bridge to traffic is by the end of 2014. How will WSDOT build the new floating bridge? There are several steps to building the new SR 520 floating bridge: Step 1: Build the necessary pontoons and anchor cables.Step 2: Tow pontoons from construction facilities to the Lake Washington area.Step 3: Outfit pontoons with a new roadway superstructure on top of each pontoon.Step 4: Connect supplemental stability pontoons to longitudinal pontoons.Step 5: Anchor cross pontoons to create the east and west ends of the new floating bridge.Step 6: Connect pontoons across Lake Washington and secure them with anchors.Step 7: Complete roadway lanes, shoulders, barriers and the bicycle/ pedestrian path.Step 8: Connect new floating bridge to east and west approach bridges.Step 9: Open new floating bridge to drivers.Note: Exact construction sequencing will be determined by the design-build contractor.Where will WSDOT connect the new floating bridge? As shown below, crews will install the new floating bridge north of the existing bridge.
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不理闲事，不听废话，低头做事，抬头看路！均属个人观点，与所在机构无关 超赞 赏 visatousa 0$(VIP 0) 4,2302011-08-30#7 回复: 西雅图520大桥项目公开信息曝露。SR 520 Program - Library - Technical Documents This page contains technical and legislative reports, as well as legislation related to the SR 520 corridor. The documents are listed in chronological order.Technical and legislative reportsTransportation reportsEnvironmental reportsFinance reportsDesign and miscellaneous reportsCatastrophic Failure PlanLegislation related to the SR 520 corridorSR 520 Final High Capacity Transit Plan (pdf 3 mb)December 2008 Eastside Transit and HOV - Accelerated improvements to address ESHB 2878 - Final Report (pdf 1.5 mb) Eastside Transit and HOV - Accelerated improvements to address ESHB 2878 - Technical Report (pdf 4.7 mb)September 2008Draft High Capacity Transit Plan (pdf 3.7 mb)October 2007SR 520 Transit Station Usage StudyTransit Station Usage Study - Executive Summary (pdf 208 kb) Transit Station Usage Study (pdf 1.1 mb)August 2005 Section 106 Technical Report Volume 1 of this report contains sensitive cultural resources information that is exempt from public disclosure pursuant to provisions of the Public Records Act (RCW 42.56.300). The Final EIS Cultural Resources Discipline Report contains all information from Volume 1 of the Section 106 Technical Report that is available for the public. Summary and Introduction (pdf 2.79 mb) Vol. 2 - Built EnvironmentChapter 1 - 5 (pdf 5.76 mb)Chapter 6 a (pdf 5.76 mb)Chapter 6 b (pdf 5.51 mb)Chapter 6 c - 9 (pdf 1.88 mb) Technical Report Vol. 2 - Built Environment Appendices Part 1Part 1 a (pdf 2.48 mb)Part 1 b (pdf 6.55 mb)Part 1 c (pdf 4.41 mb)Part 1 d (pdf 5.67 mb)Part 1 e (pdf 3.75 mb)Part 1 f (pdf 5.03 mb)Part 1 g (pdf 4.37 mb)Part 1 h (pdf 4.83 mb)Part 1 i (pdf 5.31 mb)Part 1 j (pdf 5.42 mb)Part 1 k (pdf 4.96 mb)Part 1 l (pdf 4.77 mb)Part 1 m (pdf 4.89 mb)Part 1 n (pdf 4.73 mb)Part 1 o (pdf 4.40 mb) Technical Report Vol. 2 - Built Environment Appendices Part 1Part 2 a (pdf 5.10 mb)Part 2 b (pdf 5.36 mb)Part 2 c (pdf 5.31 mb)Part 2 d (pdf 5.59 mb)Part 2 e (pdf 5.79 mb)Part 2 f (pdf 5.29 mb)Part 2 g (pdf 5.90 mb)Part 2 h (pdf 5.63 mb)Part 2 i (pdf 5.70 mb)Part 2 j (pdf 5.08 mb)Part 2 k (pdf 6.94 mb)Part 2 l (pdf 5.86 mb)June 2011SR 520, I-5 to Medina: Bridge Replacement and HOV Project Final Environmental Impact Statement June 2011Appendix E - Standards and Guidance Referenced in the SR 520, I-5 to Medina Bridge Replacement and HOV ProjectSection 106 Programmatic Agreement 1. Programmatic agreement among FHWA, ACHP, WSDOT, and DAHP implementing the Federal-Aid Highway program in Washington State (pdf 155 kb) 2. Crime prevention through environmental design (pdf 68 kb) 3. Seattle Parks and Recreation Olmsted Park Furniture Standard (pdf 567 kb) 4. DAHP recordation standards for structures (pdf 60 kb) 5. Secretary of the Interior’s Standards and Guidelines for the Treatment of Historic Properties (pdf 59 kb) 6. Context-sensitive solutions in transportation planning (pdf 27 kb) 7. Seattle Right of Way Manual - City of Seattle standards about street trees (pdf 72 kb) 8. WSDOT Standards Specifications Manual (pdf 5.08 mb) 9. WSDOT Roadside and Site Development - WSDOT revegetation standards (pdf 20 kb) 10. DAHP guidelines on archaeological data collection (pdf 3.56 mb) 11. WSDOT's Unanticipated Discovery Plan - Plan and Procedures for the Unanticipated Discovery of Cultural Resources and Human Skeletal Remains (pdf 29 kb) 12. City of Seattle requirements concerning noise variances (pdf 111 kb) 13. WSDOT policy and procedures on consultation about noise walls (pdf 228 kb) 14. WSDOT Environmental Procedures Manual (pdf 9.9 mb) 15. WSDOT No idle and fuel conservation policy (pdf 364 kb) 16. WSDOT environmental compliance assurance guidance (pdf 31 kb) April 2011SR 520 I-5 to Medina Project Section 6(f) Environmental Evaluation Frequently Asked Questions (pdf 252 kb)February 2011SR 520 Pontoon Construction Project Record of DecisionJanuary 2011SR 520 Pontoon Construction Project Final Environmental Impact Statement December 2010SR 520, I-5 to Medina: Bridge Replacement and HOV ProjectEnvironmental Evaluation of Section 6(f) Replacement Sites (2.5 mb)November 2010SR 520 Pontoon Construction Project Draft Environmental Impact Statement Summary of Comments (pdf 3.45 mb) July 2010AKART and Water Quality Studies for SR 520 Replacement Floating Bridge approval letter (pdf 145 kb)June 2010 SR 520 Pontoon Construction Project Draft Environmental Impact Statement May 2010SR 520, Medina to SR 202: Eastside Transit and HOV ProjectFinding of No Significant Impact May 2010AKART and Water Quality Studies for SR 520 Replacement Floating Bridge (pdf 7 mb) April 2010SR 520, I-5 to Medina: Bridge Replacement and HOV Project Supplemental Draft Environmental Impact Statement Summary of Comments (pdf 2 mb) April 2010SR 520, Medina to SR 202: Eastside Transit and HOV Project Environmental Assessment Summary of Comments (pdf 423 kb)February 2010SR 520, I-5 to Medina: Bridge Replacement and HOV Project Supplemental Draft Environmental Impact Statement January 2010SR 520, Medina to SR 202: Eastside Transit and HOV Project Environmental Assessment December 2009Pontoon Construction Project EIS Scoping Comments Report Addendum (pdf 68 kb) April 2009Pontoon Construction Project EIS Scoping Comments Report (pdf 57 kb) Pontoon Construction Project Public Scoping Meeting March 2009Movement and Habitat Use of Chinook Salmon Smolts, Northern Pikeminnow, and Smallmouth Bass Near the SR 520 Bridge (pdf 6.2 mb)October 2008SR 520 Health Impact Assessment (pdf 2.6 mb)October 2008Pontoon Construction Project Public Scoping Meeting Comment Summary (pdf 68 kb)January 2008SR 520 Bridge Replacement and HOV Project Draft EIS Public Comment Report December 2006SR 520 Bridge Replacement and HOV Project Draft Environmental Impact Statement August 2006 Finance reportsDateSR 520 Medina to SR 202: Eastside Transit and HOV ProjectTIGER grant application (pdf 1 mb) Learn more about WSDOT TIGER grants September 2009SR 520 Toll Traffic and Revenue Technical Report - 2008 (pdf 995 kb)April 20092007 SR 520 Finance Plan (pdf 621 kb)January 2008SR 520 Toll Traffic and Revenue Technical Report - 2007(pdf 1.5 mb)January 2008SR 520 and I-90 Toll Feasibility Analysis: Traffic and Revenue Forecasts Technical Memorandum (pdf 1.8 mb)May 2007Washington Office of State Treasurer’s Report on SR 520 Bridge Replacement and HOV Project Funding AlternativesTreasurer's Letter March 30, 2007 (pdf 32 kb)Final Report March 28, 2007 (pdf 904 kb)Governor's Letter April 3, 2007 (pdf 38 kb)March - April 2007A Path Forward to Action: Findings and Conclusions for the Alaskan Way Viaduct and Seawall replacement and State Route 520 Bridge Replacement Projects (pdf 335 kb) Governor’s press conference December 15, 2006 (video)December 2006 Design and miscellaneous reportsDateSR 520 Expenditures to Date Summary (1997 to January 2011) (pdf 352 kb)March 2011WSDOT SR 520 Bridge Community Survey (pdf 560 kb) April 20102009 Fairs and Festivals Report (pdf 151 kb) December 20092008 Fairs and Festivals Report (pdf 598 kb)December 2008Noise Reduction Strategies Expert Review Panel Report (pdf 205 kb)September 2008Montlake Cut Tunnel Expert Review Panel Report (pdf 3 mb)June 2008Proposal K - Tunnels at East Montlake and the ArboretrumConceptual Design and Cost EstimatePart 1 - Report (pdf 1.33 mb)Part 2 - Figures (pdf 8.76 mb)March 2008Corridor Aesthetics Handbook: Ideas for Urban Corridor DesignCover of handbook (pdf 1.3 mb) Chapter 1 - Executive Summary (purpose, need and process) (pdf 1.4 mb) Chapter 2 - Corridor Unity (pdf 5.0 mb) Chapter 3 - Thematic Zones (pdf 11.3 mb) Appendix A: SR 520 Bridge Replacement Project History (pdf 215 kb) Appendix B: Design Advisory Meeting Notes (pdf 3.8 mb) Appendix C: Glossary of Aesthetic Design Elements (pdf 3 mb)August 2006I-5 to Floating Bridge Tunnel Concept Review Executive Summary (pdf 40 kb) Full report (pdf 5.6 mb)April 2006 Catastrophic Failure PlanDateCatastrophic Failure Plan - Executive Summary (pdf 567 kb)July 2008 Legislation related to the SR 520 corridorDateSenate Bill 5700 (pdf 29 kb)May 2011Senate Bill 6392 (pdf 62 kb)March 2010House Bill 2211 (pdf 42 kb) May 2009House Bill 5352 (pdf 1.37 mb) May 2009House Bill 1272 (pdf 69 kb) May 2009House Bill 2878 (pdf 320 kb)March 2008House Bill 1773 (pdf 80 kb)March 2008House Bill 3096 (pdf 20 kb)March 2008Senate Bill 6099 (pdf 24 kb)April 2007
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不理闲事，不听废话，低头做事，抬头看路！均属个人观点，与所在机构无关 超赞 赏 visatousa 0$(VIP 0) 4,2302011-12-08#8 回复: 西雅图520大桥项目公开信息曝露。请看官方的公开信息。
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不理闲事，不听废话，低头做事，抬头看路！均属个人观点，与所在机构无关 超赞 赏 visatousa 0$(VIP 0) 4,2302011-12-21#9 回复: 西雅图520大桥项目公开信息曝露。520大桥重建项目律师Darren Silver荣获美国最佳移民律师奖美国著名商业机构ABG集团主办的，2011年美国EB-5行业年度大奖，于12月17日新鲜出炉，每个奖项只设一名。在所评出的7项大奖中，“2011年最佳EB-5律师奖”被授予美国著名移民大律师Darren Silver。获奖理由：美国知名移民律师Darren Silver先生领导的Darren Silver & Associates 律师楼15年来为来自全球各地的投资移民客户提供最专业的法律服务，深受广大客户群爱戴和获得同行好评。
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