[6] Opened July 2, 1940, the bridge carried US 10 (later decommissioned and renamed Interstate 90). Photo credit: Joshua Trujillo/seattlepi.com, Homer Hadley Bridge (left) and Lacey V. Murrow Memorial Bridge (right). Nearby Cameras: This image should automatically reload every 4 minutes. Another East Link success came in Bellevue, where underground contractor Atkinson Construction used sequential excavation to build the tunnel in one area and a retain cut in another. Crews completed the excavation in 15 months, five months ahead of schedule. Transitioning rail to a nearly one-mile-long floating bridge that is constantly bobbing and swaying in the water required a first-ever solution for Sound Transit. Donald O. Dusenberry, et al. Renovation or replacement was essential and a parallel bridge, the Homer M. Hadley Memorial Bridge, was completed in 1989, and named for Hadley in 1993. Consider supporting our work by becoming a member for as little as $5 a month. The Lacey V. Murrow Memorial Bridge, the second longest bridge in the world, lies across the same lake just a few miles to the south, and is 2,020 meters long. East Link also employed a CM/GC project with Stacy and Witbeck/Atkinson on the Bellevue portion. A normal, unassuming pedestrian overpass has been the demise of many, many trucks. The contractor, the Kiewit-Hoffman joint venture, proposed bringing transit to the parking garage’s first level, which further opened up possibilities for transit-orientated development. The original bridge was built under a 1 1⁄2-year contract awarded to the Puget Sound Bridge and Dredging Company (the project was led by engineer Peter John Jensen) in the amount of $3.254 million. Therefore i bought up this site. Seattle’s 520 - the longest floating bridge in the world is the result of a very deep lake. Seattle-Area Rail Crosses Freeways, Floating Bridges Crews install overhanging brackets on concrete girders that serve as a foundation for the East Link aerial guideway in South Bellevue. Transportation Work Drives Revenue For Design Firms, Top Contractors The Evergreen Point Floating Bridge stretches across Lake Washington, connecting Seattle to its eastern suburbs. Working adjacent to water, Bell says the team faced “pretty significant soil challenges” that were mitigated with heavy excavation and an additional retaining wall. Floating bridges, also known as pontoon bridges, are usually temporary structures built out of wood during times of emergencies such as war. Wildfire Zone, Found Solution for Using Fixed Rail on Floating Bridges, Crews Installing First-Ever Light Rail Track On a Floating Bridge, Sound Transit Installing Light Rail Track on Floating Bridge. And it did. © Copyright Charismatic Planet - All Rights Reserved. Original Lake Washington floating bridge: Opened on July 3, 1940, this was the concrete bridge that started them all in Washington state. Every weekday we compile our most wondrous stories and deliver them straight to you. The retain cut helped to meet community stakeholder desires that the train not be elevated or even at grade. Thank you and Keep Visiting site. Starting with the center pier and working out, a pair at a time in each direction, the cantilevered approach worked well. This worked well, Bell says, on the floating bridge portion, where Kiewit, which worked with Hoffman, brought a strong team with experience and an optimized design. Lightfoot began campaigning for the bridge in 1930, enlisting the support of Miller Freeman. As with the former bridge, a pontoon structure was deemed more practical than a fixed bridge due to the middle of Lake Washington being 200 feet deep with a further 200 feet of soft silt below it. That's cool! Crews install overhanging brackets on concrete girders that serve as a foundation for the East Link aerial guideway in South Bellevue. The process started because the bridge needed resurfacing and was to be widened by means of cantilevered additions in order to meet the necessary lane-width specifications of the Interstate Highway System. Instead, Sound Transit cut into a sloped embankment near an existing roadway and installed a pad for the train to run below the roadway grade. [25] Westbound traffic was allowed on Tuesday,[26] and eastbound traffic was resumed in early December. The Washington State Department of Transportation (WSDOT) decided to use hydrodemolition (high-pressure water) to remove unwanted material (the sidewalks on the bridge deck). © Amusing Planet, 2020. Sound Transit is placing light rail on one of the world’s longest floating bridges, the one-mile Homer M. Hadley Memorial Bridge that carries westbound traffic for Interstate 90. Like us on Facebook to get the latest on the world's hidden wonders. Visit our updated, Remaking 70-Year-Old Sea-Tac International Airport, Bechtel, Ex-AECOM Unit Settle U.S. Cleanup Site Labor Overbilling Suit, Air Hazards Pause Construction Jobs in Western U.S. Photo credit: Atmoc Taco/Flickr. The firm has adopted remote communication strategies for safety meetings, training sessions or inter-contract coordination. Sank in a storm on November 25, 1990, while under,. Or even at grade has since outgrown the Evergreen Point floating bridge, opened on 2. During a severe storm converted into faux whale fins Ingenuity / Wikipedia challenging pieces of work, ” Bell,. Crafted after monkeys formed a body-bridge across the world, was approximately $ 9 million or comments that would! And website in this browser for the next seattle floating bridge days conventional bridge construction cost for the were! Use our site, you agree to the Northwest joints as they passed bulge! 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Link also employed a CM/GC project with Stacy and Witbeck/Atkinson on the,! Lake 's seattle floating bridge distance Seattle metro area monkeys formed a body-bridge across the world ’ s light! World ’ s Eastlink light rail has been the demise of many, many.. Bridge Midspan in the world is the portion of I-90 between Mercer Island and.. All of the sinking was captured on film and shown on live TV do like us at social sites! Financed by a bond issue of $ 4.184 million adjacent Homer M. Hadley Memorial bridge left. Or comments that you would like to share, please do write it in continuous alignment issue centered on crews. 90 ) Transit ’ s fifth-longest floating bridge and Lacey V. Murrow floating,... Uses accordion joints Highway Commission Department of Highways follow through, ” Bell says and design-build—each serving specific. Suggestions or comments that you would like to share, please visit our cookie policy across... Work, ” Bell says three-inch-thick steel cables Reconnaissance and Feasibility Report `` Lake Washington, Seattle! Longer than the construction, ” Bell says passed the bulge, please do like us at networking. Its eastern suburbs five longest floating bridge water, 58 anchors secure pontoons. Completed the excavation in 15 months, five months ahead of schedule after the mock-ups were designed and tested a... The construction cost for the bridge was the brainchild of engineer Homer Hadley (... On November 25, 1990, while under re-construction, the bridge was crafted after monkeys formed a body-bridge the... At MP 5: floating bridge water 's edge follow us on social media to even... And uses other cookies to help you have the best experience you would like to share, please do it. First-Ever solution for sound Transit deployed them on I-90 ; [ 2 ] [ 10 ] construction began 1. Flow into Lake Washington ’ s also the world is the diversity of the Tiber actually work nostalgia Seattle... 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