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	Second Narrows Bridge - Wikipedia, the free encyclopedia
		The Second Narrows Bridge is a vertical lift rail bridge that crosses the Burrard Inlet and connects Vancouver with the North Shore.
		The original Second Narrows Bridge was constructed in 1925, and was the first bridge to connect Vancouver with the North Shore over the tidal bore of the narrows.
		In 1994 the new bridge was renamed the Ironworkers Memorial Second Narrows Crossing.
	en.wikipedia.org /wiki/Second_Narrows_Bridge (878 words)

	Tacoma Narrows Bridge
		With its shallow stiffening trusses and slender towers, the bridge across the Narrows was the epitome of artistry in bridge construction.
		The Tacoma Narrows Bridge was known for its tendency to sway in windstorms.
		The significance of the first Tacoma Narrows Bridge, to a large extent, is derived from its startling collapse on November 7, 1940.
	www.nwrain.com /~newtsuit/recoveries/narrows/narrows.htm (474 words)

	The Doctor Is In: Bridge Blogging
		Built at the cost of $6.6 million dollars, designed by world-famous bridge architect Leon S. Moisseiff (who also designed the Golden Gate bridge), it embraced the light, elegant design principles in vogue at the time - and was designed with complete ignorance of the aerodynamic effects of high winds on bridges.
		The second - and current - Narrows bridge was begun in 1948, and completed October 14, 1950, 29 months after construction began, at a cost of $14 million.
		The new bridge is scheduled to be completed in 2006, and renovations to the existing bridge made after this.
	doctorisin.blogspot.com /2004/10/bridge-blogging.html (804 words)

	The History of 2nd Narrows Bridge (Site not responding. Last check: 2007-10-12)
		The collapse of the Second Narrows Bridge on June 17 1958.
		Begun in November 1957, and built alongside the older bridge, the current Second Narrows Bridge, was intended to replace the narrow roadway of the rail and car bridge.
		In the 1990's the bridge was re-named “The Ironworkers Memorial Bridge”, as a tribute to the workers who lost their life during its collapse while it was being built.
	www.cherrybouton.com /2ndnarrows.html (632 words)

	The Doctor Is In: Faith (Site not responding. Last check: 2007-10-12)
		In 1950, the second Narrows Bridge was completed, and stands to this day, enduring weather far more severe than that which doomed Gertie.
		After the second Narrows Bridge was completed in 1950, many people were understandably reluctant to drive on the new span.
		Had a life-threatening emergency arisen demanding a trip across the bridge, such fear would have proven equally fatal, although the bridge was entirely reliable and capable of supporting such transport.
	doctorisin.blogspot.com /2004/06/faith.html (482 words)

	Tacoma Narrows New Bridge Project
		In Tacoma, Washington a second Tacoma Narrows is scheduled to be constructed along side the existing structure.
		The new suspension bridge will be built parallel to and south of the existing Tacoma Narrows Bridge, and will have a total length of 5,400 feet.
		With a center length span of 2,800 feet, the new bridge represents the longest suspension bridge to be built in the United States since the Verrazano Narrows Bridge was opened in 1964
	bridgepros.com /projects/TacomaNarrows/TacomaNarrows.htm (2694 words)

	Tufts E-News -- Building Bridges
		In charge of constructing the New Tacoma Narrows Bridge, Tufts graduate Manuel Rondón has both the artistry and managerial skills to close the gap.
		The Tufts graduate is in charge of building the longest suspension bridge built in the United States in 40 years – across a channel infamous for high winds and tidal currents.
		He recently oversaw the addition of a second deck to the bridge over the Tagus River in Lisbon, Portugal – the longest suspension bridge in Europe.
	www.tufts.edu /communications/stories/022503BuildingBridges.htm (481 words)

	~~Tacoma Narrows Bridge ~ WA~~ (Site not responding. Last check: 2007-10-12)
		The significance of the first Tacoma Narrows Bridge, to a large extent, is derived from its startling collapse in 1940.
		The new Tacoma Narrows Bridge opened to traffic on October 14, 1950; all components of the structure were finally in place by November 1951.
		The bridge operated as a toll facility until the bonds were retired, at which time the tolls were removed along with the toll plaza and booths (although the toll houses remain off the south end of the bridge).
	499angels.net /ulasiewicz/TacomaNarrowsBridge.html (733 words)

	BC Highways - Trans-Canada Highway
		The bridge was finished in 1960, and was refinished with a new deck, more safer centre divider and pedestrian walkway railings in 1997.
		The bridge on the right is a railway bridge that carries a branch of the Canadian National Railway across Burrard Inlet's Second Narrows to North Vancouver to serve the North Shore lumber and coal loading facility.
		This is the original bridge, a new one for the eastbound lane alignment was put in and finished in 1997.
	modena.intergate.ca /personal/pl8s/TCH/Hwy_1W_B.htm (966 words)

	WSDOT - Tacoma Narrows Bridge History: Resources - A Tale of Three Bridges
		At one mile in length, the existing 1950 bridge is the fifth longest bridge in the United States and represents the best of suspension bridge design, stability and engineering.
		Washington sold bridge steel as surplus, and the remains of the 1940 bridge cables and span were scraped.
		The bridge remained a toll facility until the bonds were retired in May 1965, 13 years ahead of schedule.
	www.wsdot.wa.gov /tnbhistory/3bridges/1950pane.htm (206 words)

	Micron - Suspension Bridges - Bridge Collapse (Site not responding. Last check: 2007-10-12)
		Since the load on bridges in general was getting lighter (automobiles replacing heavy trains), engineers designed the two-lane Tacoma Narrows Bridge with shallow stiffening trusses and slender towers.
		The passenger in the car that is visible in the second image finally made it safely off the bridge, crawling much of the way on his hands and knees.
		The reasons for the collapse are still debated, but the failure of the bridge provided valuable information and forced engineers to realize that they did not fully understand all the aerodynamic phenomena in suspension bridges.
	www.micron.com /k12/lessonplans/bridges/collapse (282 words)

	Ironworkers Memorial Second Narrows Crossing - Wikipedia, the free encyclopedia
		The Ironworkers Memorial Second Narrows Crossing, originally called and still commonly called the Second Narrows Bridge, is the second bridge constructed at the Second (east) Narrows of Burrard Inlet in Vancouver, British Columbia, Canada.
		The bridge is 1292 metres (4239 ft) long with a centre span of 335 m (1099 ft).
		The bridge was renamed the Ironworkers Memorial Second Narrows Crossing in 1994 to honour the 27 workers that lost their lives during its construction.
	en.wikipedia.org /wiki/Ironworkers_Memorial_Bridge (459 words)

	Tacoma Narrows Update - 6/6/2005 - Pacific Builder and Engineer
		The second Tacoma Narrows Bridge was one of the six projects.
		The New Tacoma Narrows Bridge project was converted to a standard owner-contractor contract that was signed in July 2002.
		Because building a bridge of this size is a massive undertaking, TNC knew the project needed welding equipment that could meet the demands of the largest bridge project undertaken in the last 40 years.
	www.acppubs.com /article/CA605740.html (1656 words)

	WSDOT - SR 16, Tacoma Narrows Bridge Project
		New bridge deck is 5,400 feet in total length, 2,800 in the main span.
		A new suspension bridge (pdf 378 kb), nearly 80 percent complete, is being built parallel to and south of the Narrows Bridge built in 1950.
		Along with the parallel bridge, the project includes 3.4 miles of roadway improvements between Jackson Avenue in Tacoma and the 36th street exit and on-ramp in Gig Harbor.
	www.wsdot.wa.gov /projects/sr16narrowsbridge (1167 words)

	Road Traffic Technology - Tacoma Narrows Suspension Bridge - Washington
		The third bridge, due to be completed in 2008, will not replace the second bridge but will span the Tacoma Narrows parallel to and south of it.
		The SR16 corridor (which the bridge is on) is used by 85,000 to 90,000 vehicles per day and this figure is expected to rise to 120,000 vehicles per day by 2020.
		The capacity of the second bridge does not even meet current requirements so, as part of the project, it will be reconditioned and brought up to current seismic standards so that it will be the westbound route and the new bridge the eastbound one.
	www.roadtraffic-technology.com /projects/tacoma (623 words)

	Verrazano-Narrows Bridge
		The ends of the bridge are at historic Fort Hamilton in Brooklyn and Fort Wadsworth in Staten Island, both of which guarded New York Harbor at the Narrows for over a century.
		The bridge was named after Giovanni da Verrazano, who, in 1524, was the first European explorer to sail into New York Harbor.
		In Brooklyn, the bridge connects to the Belt Parkway and the Brooklyn-Queens Expressway and to the largely residential community of Bay Ridge.
	www.mta.nyc.ny.us /bandt/html/veraz.htm (265 words)

	History of Vancouver - Collapse of the Second Narrows Bridge
		He gives the history of the first bridge (1925) across that point on the Inlet, a bridge so badly placed it was hit many times by ships and in September of 1930 was put out of commission for more than three years when a ship took out the centre span.
		The decision was made in 1955 to construct a new bridge, a six-lane high-level highway bridge, budgeted in April, 1955 at $12 million to $15 million, with a construction time of three years.
		Lessard: When the bridge came down, I fell in the water on the side of the bridge, so I didn’t hit any of the structures on the bridge.
	www.vancouverhistory.ca /archives_second_narrows.htm (738 words)

	NewBayBridge.org - Site Challenges - Tacoma Narrows Bridge
		The Tacoma Narrows Bridge was revolutionary in its design and historic in its collapse.
		The Tacoma Narrows Bridge was nicknamed Galloping Gertie for its tendency to sway in windstorms.
		A third bridge, due to be completed in 2008, will span the Tacoma Narrows parallel to and south of the 1950 bridge.
	www.newbaybridge.org /the_bridge/tacoma_narrows_bridge.html (322 words)

	Narrows Bridge \| TheNewsTribune.com \| Tacoma, WA
		The second shipment of Korean-made deck sections for the new Tacoma Narrows bridge arrived in Commencement Bay on Monday.
		The builders of the new Tacoma Narrows bridge squeezed a heavy ocean transport vessel loaded with deck sections under the existing bridge early Thursday, this time avoiding the underside of the old bridge by 15 feet.
		Construction of the Tacoma caisson of the new Tacoma Narrows bridge is five weeks behind schedule, according to a report released Monday by the state Department of Transportation.
	www.thenewstribune.com /news/projects/narrows_bridge (5050 words)

	KOMO-TV - Seattle, Washington - News Archive - State Signs Contract To Build Second Narrows Bridge (Site not responding. Last check: 2007-10-12)
		But the bridge won't be 100 percent American, with more than half of the steel is coming from Korea and Japan.
		And in the crowd at Tuesday's announcement was Randy Boss, whose citizens' group is suing to stop the bridge and its $3-to-$6 tolls.
		Ground breaking isn't expected to happen until this coming September, and then you won't be able to drive across a second Narrows bridge until the year 2007.
	www.komotv.com /news/story.asp?ID=19392 (503 words)

	Foreign steel will be going into second Narrows Bridge (Site not responding. Last check: 2007-10-12)
		However, the details are not final until Tacoma Narrows Constructors signs a design-build agreement and a development agreement with the state tomorrow at Tacoma Community College.
		Leaders had hoped for federal funding for the bridge at one point, but when that fell through the possibility of using entirely domestic steel was pretty much abandoned.
		Nippon Steel of Japan is the front-runner to build the bridge deck, Lantz said, with the work performed in South Korea.
	seattlepi.nwsource.com /local/78498_narrows15.shtml (564 words)

	HistoryLink Essay: Tacoma Narrows Bridge, second edition, opens to traffic on October 14, 1950.
		The structure is the first suspension bridge built in the United States since the failure of its predecessor, and the design incorporates engineering knowledge gained from that catastrophe.
		The bridge failed because it was too light, with a too-narrow a roadway, and because of solid girders and the solid deck that caught the wind like a kite instead of letting it pass through.
		The second Tacoma Narrows Bridge, built from 1948 to 1951, has perforated girders and open grating in the deck that lets the wind pass through.
	www.historylink.org /essays/output.cfm?file_id=7113 (661 words)

	A Short History of the Lions Gate Bridge
		The first bridge to the North Shore was the Second Narrows Bridge.
		Recent proposals to replace, widen or alter the bridge have met storms of protest.
		Some opposed the retention of existing causeway leading to the bridge through Stanley Park; others opposed replacing the entire bridge wanting to protect it as a historical landmark.
	www.cherrybouton.com /lgbridge.html (606 words)

	North Vancouver Ferries / SeaBus
		The Second Narrows Bridge was built in 1925, but as Captain James Barr, author of "Ferry Across the Harbour" points out, it had little deterrent on the ferry business.
		The bridge was out of the way, making it a long drive downtown, and it was more unreliable than the ferries were, having to open to let ships through and being heavily damaged several times (5,6).
		In 1938, the Second Narrows Bridge (Lion's Gate Bridge) was completed and took further business away from the ferries.
	www.geocities.com /ferries_bc/history/nvanferries.html (509 words)

	KOMO-TV - Seattle, Washington - News Archive - Foreign Steel Flap Could Stall Second Narrows Bridge Project
		Tacoma Narrows Constructors is a partnership forged by Bechtel Enterprises and Kiewit Pacific Co. to build a second bridge across the Narrows and reconfigure the existing bridge to three-lane, one-way westbound traffic.
		The project is expected to take 4 1/2 years, with both bridges opening in 2007 at an initial $3 round-trip toll.
		Consequently, the bridge builders have planned to buy materials on the international market to hold down costs and tolls, he said.
	www.komotv.com /stories/18407.htm (617 words)

	Tacoma Narrows Bridge (Site not responding. Last check: 2007-10-12)
		On November 7, 1940, at approximately 11:00 AM, the first Tacoma Narrows suspension bridge collapsed due to wind-induced vibrations.
		Situated on the Tacoma Narrows in Puget Sound, near the city of Tacoma, Washington, the bridge had only been open for traffic a few months.
		Here is a small, short (250 frames - 10 seconds?) but biggish (700K) excerpt of a MPEG video clip of the action, showing the maximum torsional motion shortly before failure The origin of this sequence is unknown, but it has probably been lifted from the 20 minute silent film that is available from:
	www.civeng.carleton.ca /Exhibits/Tacoma_Narrows (106 words)

	House approves building second Narrows bridge (Site not responding. Last check: 2007-10-12)
		OLYMPIA -- A bill to allow construction of a second bridge across the Tacoma Narrows passed the House yesterday, breaking an impasse that stalled the project for more than a year.
		The bill also would repeal the 1961 law banning tolls on the existing bridge after it was paid off in 1965.
		That opens the door for tolls on existing bridges and roads elsewhere, she said.
	seattlepi.nwsource.com /transportation/57081_transpo05.shtml (558 words)

	Top Projects of 2002 -- Seattle DJC.COM
		The second Tacoma Narrows Bridge, on the left, will be parallel to the existing span.
		The new state Route 16 Tacoma Narrows Bridge — the first long-span suspension bridge to be built in the United States since 1964 — will be 5,413 feet long with a 2,800-foot main span and approximately 510-foot-tall towers.
		Portions of the existing bridge will be structurally upgraded and reconfigured to three full-size lanes.
	www.djc.com /special/02top20/a1.html (314 words)

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