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Topic: Alaskan Way Seawall

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	WSDOT - The Alaskan Way Viaduct and Seawall
		The Alaskan Way Viaduct section of SR 99 has been a fixture of the downtown Seattle waterfront for over five decades.
		If the seawall were to fail, sections of the viaduct, the Alaskan Way surface street, and adjacent structures and utilities could collapse or become unsafe.
		The Nisqually earthquake highlighted the inevitable fact that the viaduct and seawall are nearing the end of their useful lives, and itâs time to replace them.
	www.wsdot.wa.gov /Projects/Viaduct/viaductSeawall.htm (569 words)

	High school student paper: Seawall construction in Homer, Alaska
		Seawalls are associated with reduced aesthetic value, and increased erosion at the ends and in front of the seawall.
		A seawall was chosen as the least expensive approach to protecting the property and it has increased the value of the properties it protects.
		The seawall is far enough up the beach that it isn't exposed to seawater except at high tides and the additional erosion in front of the seawall may only affect the creatures of the supra-littoral zone.
	seagrant.uaf.edu /nosb/papers/2003/homer-seawall.html (2669 words)

	Australian Information from Wikipedia
		The Alaskan Way Seawall is a seawall which runs for 7,000 feet along the Elliott Bay waterfront southwest of downtown Seattle from Bay Street to S. Washington Street.
		Completed in 1934, the seawall was built on top of wood piling which has significantly deteriorated due to wood eating gribbles.
		In addition, everything behind the seawall from Alaskan Way to Western Avenue is built on top of fill, making for a very dangerous situation should a large earthquake occur.
	www.thinkingaustralia.net /thinking_australia/wikipedia/default.php?title=Alaskan_Way_Seawall (229 words)

	Alaskan Way - SeattleWiki
		Alaskan Way is a major waterfront thoroughfare, providing surface transportation for tourists, Seattle residents, and shipping and ferry traffic around the Port of Seattle properties at its south end.
		The roadway is built on top of fill material held in place by the deteriorating Alaskan Way seawall; in fact, all roadways and buildings from the waterfront to Western Avenue are built on this fill, and thus are in danger of collapse or major damage in a large earthquake.
		For this reason, plans are under development to rebuild the seawall and the associated roadways and support structure, including replacement of the aging Alaskan Way Viaduct, the raised two-deck highway that carries SR 99 along the waterfront.
	seattlewiki.org /wiki/Alaskan_Way (187 words)

	The Alaskan Way Seawall: The Facts
		The Alaskan Way Seawall was built between 1916 and 1936 to support rail and road access to shipping piers.
		The seawall has served its purpose well, but is showing the effects of its age and corrosive marine environment.
		One of the two primary vulnerabilities of the seawall is its inability to resist loads associated with liquefaction of the loose soils on which it is constructed.
	www.seattle.gov /transportation/seawall.htm (471 words)

	GeoEngineers, Inc - News - Alaskan Way Seawall
		The Alaskan Way Seawall project located in Seattle, received the 2004 Silver Award for Complexity from the Washington State chapter of the American Council of Engineering Companies.
		Alaskan Way is supported by a complex system, resting on fill placed atop a timber relieving platform, with the sidewalk above a concrete seawall.
		The grouting program proved successful as an interim measure to improve seawall stability until a permanent solution can be implemented during future reconstruction of the Alaskan Way Viaduct.
	www.geoengineers.com /NewsDetail.aspx?Id=8 (193 words)

	EPA: Federal Register: Intent To Prepare a Draft Environmental Impact Statement for Elliott Bay Seawall, WA
		Seawall structural instability is putting a tremendous amount of public and private infrastructure, development, and transportation linkages at risk of damage due to wave and tidal erosion, and hence potential for undermining and collapse.
		The SR 99 Alaskan Way Viaduct and Seawall Replacement Project Draft Environmental Impact Statement (AWVSRP DEIS) was issued by the U.S. Department of Transportation Federal Highway Administration (FHWA), Washington State Department of Transportation (WSDOT), and City of Seattle on April 9, 2004 (69 FR 18898).
		The AWVSRP DEIS evaluated the rebuilding of the Alaskan Way Seawall because it is essential to the function of transportation facilities and is at risk of collapsing in a large earthquake.
	www.epa.gov /fedrgstr/EPA-IMPACT/2006/March/Day-31/i3140.htm (975 words)

	Alaskan Way/SR 99 Viaduct - Seattle, WA
		Alaskan Way/SR 99 Viaduct - Seattle, WA If you are reading this, your browser does not support scripts or it is disabled.
		The Alaskan Way/SR 99 Viaduct was built in the early 1950's.
		It is one of the more interesting ways to come into the city, especially at night, as you are on the upper deck.
	www.sireneinternet.net /pstran/viaduct (313 words)

	TBM: Tunnel Business Magazine Feature Story1
		The Alaskan Way Viaduct and Seawall Replacement (AWVSRP) project is one of the largest transportation projects today on the West Coast of the United States, with an estimated replacement cost of more than $4 billion and a construction duration exceeding seven years.
		The Alaskan Way Viaduct (AWV) is an elevated section of State Route 99 (SR99) that is parallel to the surface street.
		In addition, the viaduct and the adjacent Seattle seawall are at risk of failure from earthquakes or irreversible loss of use from age and deterioration.
	www.tunnelingonline.com /pastissues/2005/june05_featurestory1.htm (1602 words)

	Sea Wall/Gribbles : Seattle Aquarium (Site not responding. Last check: 2007-10-10)
		Inspections done in June of 2002 showed significant damage to Seattle's seawall had been done by wood-chewing crustaceans known as Gribbles.
		The seawall supports Alaskan Way and the fill soil upon which the viaduct is built.
		If the seawall fails, it could lead to permanent damage to the viaduct, Alaskan Way, as well as property and buildings adjacent to Alaskan Way.
	www.seattleaquarium.org /news/wall (61 words)

	Seattle City Council
		The Council is considering any legislation related to the Alaskan Way Viaduct/Seawall Project in a Committee of the Whole chaired by Councilmember Richard Conlin.
		A RESOLUTION 30724 -Adopting Guiding Principles for decisions related to the Alaskan Way Viaduct and Seawall Project.
		A RESOLUTION 30726 -Declaring the Tunnel Option as the City's Preferred Alternative for replacement of the Alaskan Way Viaduct/Seawall Project (the Project), and expressing preferences for the design and development of the Project.
	www9.seattle.gov /council/viaduct.htm (191 words)

	Northwest Progressive Institute: Invest in the Alaskan Way Tunnel
		The future of the Alaskan Way Viaduct is one of the hottest regional topics right now - as it should be.
		The new Alaskan Way Tunnel will be equipped with a state-of-the-art fire suppressant system which combats fire using non-toxic AFFF foam sprinklers.
		Oh, and by the way, the Tunnel Alternative is expected to have noticeably lower noise levels in the central waterfront compared to today, making the area more pleasant for pedestrians, residents, and nearby businesses.
	www.nwprogressive.org /weblog/2005/11/invest-in-alaskan-way-tunnel.html (1335 words)

	[No title]
		Over the years, saltwater corroded the steel portion of the nearly 70-year-old seawall, and marine life such as gribbles and large shipworms (bankia setacea) have attacked the timber facing.
		The wood facing is what holds the soil under Alaskan Way and the viaduct in place.
		In 1985, the steel sheets anchoring the seawall were faced with Ekki wood, a dense hardwood that is normally impervious to marine borers such as gribbles.
	www.govtech.net /magazine/story.print.php?id=100666 (227 words)

	Washington Vintage Trolley Systems by John Smatlak
		In addition to the long established Ferry Terminal, the former industrial land along Alaskan Way is now filled with restaurants, residential units, a major hotel, a new Maritime Museum and a cruise terminal.
		Further complicating the situation is the planned project to replace the aging Alaskan Way viaduct, in whose shadow the majority of the present Waterfront Streetcar is now operated.
		The WSDOT website also has extensive details on the Alaskan Way viaduct and seawall replacement project, which is the other factor influencing the need to mothball the streetcar service.
	www.railwaypreservation.com /vintagetrolley/seattle.htm (2060 words)

	City Comforts, temporarily known as Viaduct, The Blog: What is a "seawall"?
		A seawall is a bulkhead at the edge of a body of water.
		But the Alaskan Way seawall in Seattle was built as a way to permit ships close to the shore of Elliott Bay for easier loading and unloading.
		But the seawall remains and there is concern that it may need substantial repair.
	citycomfortsblog.typepad.com /cities/2003/06/what_is_a_seawa.html (596 words)

	Waterfront :: Design Collaborataive
		Finding ways to highlight the ferries is one way to make sure the Waterfront is true to the region.
		The good news is that rebuilding the seawall is an opportunity to restore natural habitat for both sea life and people to enjoy.
		By moving the tunnel upland, to firmer ground, the seawall is freed to bend more like a normal coastline.
	www.alliedarts-seattle.org /1_waterfront/collaborative.html (1483 words)

	Cascadia - Articles/News: Cost Cutting On Viaduct Project May Boost Tunnel To Downtown
		Efforts to replace the ailing Alaskan Way Viaduct with a tunnel may get a boost with the city's willingness to defer part of the expensive project.
		Taken out of the calculation is the replacement of the Alaskan Way seawall north of Union Street — something that isn't integral to the viaduct replacement.
		State officials said they are willing to study the use of tolls on the viaduct, although they worry that tolls could be problematic because of exits downtown and that drivers might instead go to an already-crowded Interstate 5.
	www.discovery.org /scripts/viewDB/index.php?command=view&program=Cascadia-News&id=3078 (702 words)

	Seattle Channel -- News Room -- Alaskan Way Viaduct In-depth
		The Alaskan Way Viaduct is just a portion of State Route 99 that the Washington State Department of Transportation (WSDOT) is beginning to improve.
		If you vote yes, you are stating that you prefer that the Alaskan Way Viaduct be replaced with a four-lane tunnel with wide shoulders that could be used for peak-period travel, in addition to surface-street and transit improvements.
		If you vote yes, you are stating that you prefer that the Alaskan Way Viaduct be replaced with a six-lane elevated structure, increased to four lanes in each direction between South King Street and new ramps at Seneca and Columbia Streets.
	www.seattlechannel.org /issues/viaduct.asp (2329 words)

	WSDOT - Project - SR 99 - Alaskan Way Viaduct and Seawall Replacement
		WSDOT is moving forward on early safety and mobility improvements (pdf 664 Kb) in the north and south end that will fix approximately 55 percent of the seismically vulnerable viaduct.
		The viaduct and the seawall are at risk of failure from earthquakes (with unacceptable risk to lives as well as property), or irreversible loss of use from age and deterioration.
		At WSDOT we seek to address the concerns of the tribal nations using the process outlined in Section 106 of The National Historic Preservation Act and the WSDOT Tribal Consultation Policy adopted in 2003 by the Transportation Commission as part of the WSDOT Centennial Accord Plan.
	www.wsdot.wa.gov /projects/Viaduct (1057 words)

	Seattle Channel -- Videos --Alaskan Way Viaduct and Seawall
		The Mayor observes divers as they inspect the north end of the Alaskan Way Seawall to determine the extent of the most recent damage to the beleaguered structure caused by yet another marine borer.
		One option for the Alaskan Way Viaduct is to tear it down and not replace the route for cars, instead dispersing traffic to other corridors and providing transit alternatives, as some other growing cities are doing.
		Council met as a Committee of the Whole to hear alternatives to the Alaskan Way Viaduct and Seawall Project from the Seattle Department of Transportation (SDOT) and the WA State Department of Transportation (WSDOT).
	www.seattlechannel.org /videos/watchVideos.asp?program=viaduct (4335 words)

	EPA: Federal Register: Environmental Impact Statement Seattle, WA
		The Draft EIS for the Alaskan Way Viaduct and Seawall Replacement Project was published March 31, 2004.
		The Alaskan Way Viaduct is one of two primary north-south limited access routes through downtown Seattle and is a vital link in the region's roadway system.
		The Alaskan Way Viaduct and Alaskan Way Seawall are both at the end of their useful life.
	www.epa.gov /fedrgstr/EPA-IMPACT/2005/August/Day-03/i15270.htm (541 words)

	[No title]
		(Alaskan Way Viaduct & Seawall Project, Seattle, WA This large-scale replacement project involves technical evaluation and conceptual design of various rehabilitation/replacement alternatives for the SR-99 Alaskan Way Viaduct corridor.
		Several options to realign the Mercer Street corridor and reconnect the streets within the core transportation network have been evaluated over the past few decades, many of which have been dismissed due to lack of funding and/or design feasibility.
		However, recent developments with the Alaskan Way Viaduct project have provided a catalyst for moving forward a variety of potential transportation/redevelopment opportunities.
	www.cie-sea.org /Biography_8_22_03b.doc (895 words)

	RTID King County Project List
		The cost estimate is based on replacing the existing viaduct and Seattle's central waterfront seawall with a new 6-lane stacked cut and cover tunnel and provides a connection to a refurbished Battery Street Tunnel.
		It replaces the floating bridge, approaches and constructs HOV lanes from east of Montlake Boulevard to the vicinity of Bellevue Way.
		This project will also construct 6 miles of improvements on Interstate 5 from S. 320th in Federal Way to South 200th and connects SeaTac International Airport's South Access Expressway to SR 509 and Interstate 5.
	www.rtid.dst.wa.us /3King_projects.htm (1149 words)

	Northwest Progressive Institute: Initiative 912 would derail seawall replacement
		KOMO has a great story on another one of the negative effects of Initiative 912: the jeopardization of the planned seawall replacement.
		The top man at the State Department of Transportation is warning it will be back to step one on the Alaskan Way Viaduct and Seattle seawall replacement if voters turn thumbs down on a gas tax increase.
		The Colman ferry terminal, the waterfront fire station, and the Alaskan Way Viaduct were all built on fill.
	www.nwprogressive.org /weblog/2005/09/initiative-912-would-derail-seawall.html (823 words)

	New Page 3 (Site not responding. Last check: 2007-10-10)
		Whether the Alaskan Way Viaduct is retrofitted or replaced in the coming years, there is no question that the traffic impacts to the SODO/North Duwamish will be significant.
		Together, they will decide on a plan to replace or retrofit the viaduct and seawall, with input from a specially chosen group of civic, business, neighborhood, and government leaders.
		For more information about the Alaskan Way Viaduct Study, visit www.wsdot.wa.gov/projects/viaduct.
	www.sodotraffic.com /AlaskanWayStudy.htm (294 words)

	Transportation Projects
		The Alaskan Way Viaduct (AWV) project is one of the largest transportation design projects under consideration on the West Coast today.
		Parametrix is part of a multi-consultant team selected by WSDOT to evaluate the alternatives and design a new AWV through the heart of Seattle's waterfront district.
		Guide way segments include sections with a single reversible bus lane, with protected green for buses in one direction at a time.
	www.parametrix.com /projects/proj_list_trans.htm (5564 words)

	Mayor Nickels - Alaskan Way Viaduct Replacement Options
		Mayor Nickels - Alaskan Way Viaduct Replacement Options
		The City of Seattle is committed to replacing the ailing Alaskan Way Viaduct and Seawall.
		Recently, Mayor Greg Nickels, along with Governor Christine Gregoire and King County Executive Ron Sims, released plans to move forward with safety and mobility improvements on the north and southern ends of the SR 99 corridor.
	www.cityofseattle.net /mayor/issues/viaduct (146 words)

	Ratiocination: The Alaskan Way Viaduct
		The Alaskan Way Viaduct, carrying State Highway 99, is one of the two narrow, obsolete north-south highways shoehorned into the city of Seattle.
		The seawall that protects downtown Seattle from Elliot Bay is also in need of replacement, and a single project involving using a rebuilt seawall as one side of a cut-and-cover tunnel carrying the road seems efficient.
		The Big Dig project not only buried a longer stretch of a wider highway with heavier traffic, it also included a new tunnel underwater to Logan Airport and new bridges across the Charles River, including that pretty cable-stay number that now appears in any TV show or film set in Boston.
	nosmallplans.com /rants/2006/03/alaskan-way-viaduct.html (742 words)

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