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Topic: Bascule Bridge

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Bascule

Moveable bridge

Bridge

Lift bridge

Mystic River Bascule Bridge

Transporter bridge

Burnside Bridge

Drawbridge

Tower Bridge

List of bridges by length

Swing bridge

Toll bridge

Sundial Bridge

London Bridge

Arch bridge

	Bascule bridge - Wikipedia, the free encyclopedia
		A bascule bridge is a drawbridge with a counterweight that continuously balances the span, or "leaf", throughout the entire upward swing in providing clearance for boat traffic.
		Bascule is a French term for seesaw and balance, and bascule bridges operate along the same principle.
		Although the bascule bridge has been in use since ancient times, it was not until the 1850s that engineers developed the ability to move very long, heavy spans quickly enough for practical application.
	en.wikipedia.org /wiki/Bascule_bridge (380 words)

	Tower Bridge - Wikipedia, the free encyclopedia
		A traditional fixed bridge could not be built because it would cut off access to the port facilities situated at that time in the Pool of London, between London Bridge and the Tower of London.
		The bridge was opened on 30 June 1894 by the Prince of Wales, the future King Edward VII of the United Kingdom, and his wife, Alexandra of Denmark.
		The bridge is near the Tower of London, St Katharine Docks, and Shad Thames.
	en.wikipedia.org /wiki/Tower_Bridge (1028 words)

	Mystic River Bascule Bridge - Wikipedia, the free encyclopedia
		The Mystic River Bascule Bridge is a bascule bridge, a type of drawbridge with counterweights, that spans the Mystic River in Mystic, Connecticut in the United States.
		The bridge was built in 1922 by the American Bridge Company of Coraopolis, Pennsylvania and is of the Scherzer rolling lift type.
		The opening of the bridge is driven by two 40 horsepower (30 kW) direct current motors, each weighing 1,400 pounds (635 kg).
	en.wikipedia.org /wiki/Mystic_River_Bascule_Bridge (251 words)

	Bridge 4
		As a result, GN's bridge gang and the Morrison-Knudsen company connected several large cables to the upright span and fastened the opposite ends to the bridge's piers on the north approach of the bridge.
		Bridge operations are conducted out of "the Shed" adjacent to the bridge's superstructure where the bridge tender monitors both rail and marine band radios.
		During normal operations of the bridge when the span itself is in the raised position for water traffic, "derails" found on each set of approaching tracks are in the open position providing protection to train crew members and equipment, and boaters down beneath in the unlikely event that a train ever failed to stop.
	www.gngoat.org /bridge_4.htm (1578 words)

	Annonated Links on Bascule Bridges
		Operation of bascule bridges: This site, maintained by the Multnomach county, describes the operation of different types movable bridges, some of which are bascule bridges.
		Bridges of Wayne county: Details about the cost, dimensions, staffing and operation of the bridges in Wayne county are presented here.
		The evolution of the modern bascule bridge from the drawbridge across the moat in the medieval ages is traced.
	www.eng.usf.edu /~besterfi/bascule/links_to_web_sites_on_bascule_br.htm (1528 words)

	Maintenance and Operations Department
		The Park Street Bridge is a four lane double leaf bascule bridge spanning 372 feet of the Oakland Estuary, similar to the bridge at High Street.
		This bridge, and the High Street and Fruitvale Avenue bridges, were built by the U.S. Government in exchange for permission and rights-of-way to dredge the channel between San Antonio Creek and San Leandro Bay.
		During removal, the bridge was enclosed in a confinement tent that keeps the new paint from entering the water or elsewhere.
	www.acgov.org /pwa/dept_maintenance_operation_park_street_bridge.shtml (1336 words)

	FEC Strauss Bascule Bridge
		The earlier railroad bridge was used as the foundation for the new one.
		The secret to the operation of the bridge is a gigantic concrete double counterweight, mounted on the south end of a diamond-shaped armature (the Counterweight Truss or "walking beam") on top of the Counterweight Tower (span number 8; the FEC numbers the spans sequentially from north to south).
		The bridge should be of strong interest to modelers because it is 1) an unusually grand design and 2) a twin-track version of this design, and 3) it mixes the moveable span with the counterweight tower, three through-trusses, one through-girder (for small boats) and twenty-one deck girder spans.
	users.ipa.net /~ewall/fecbr.htm (2405 words)

	NYCDOT - Hunters Point Avenue Bridge Over Dutch Kills (Site not responding. Last check: 2007-11-02)
		It is a bascule bridge with a span of 21.8m.
		That bridge was permanently closed in 1907 due to movement of the west abutment, which prevented the draw from closing.
		The bridge was rebuilt in the early 1980's as a single-leaf bascule, incorporating the foundations of the previous bridge.
	www.nyc.gov /html/dot/html/bridges/bridges/hunters.html (268 words)

	Miami bascule 'bridges' city's past, present, future (Site not responding. Last check: 2007-11-02)
		The time it took to raise and lower the bridge for the passage of 3,000-ton vessels on the Miami River in the center of the city's financial district also was a factor in its replacement.
		While the aesthetics of the bridge are admirable, it is its engineering elements that truly set it apart from other bascule bridges.
		Although the bridge's two piers are more decorative than most-angles have been used to complement the bridge and niches have been inset into the sides of the piers to accommodate additional art pieces-they are designed to withstand impacts of ships of over 3 million lb.
	www.roadsbridges.com /rb/index.cfm/powergrid/rfah=\|cfap=/CFID/891874/CFTOKEN/18305365/fuseaction/showArticle/articleID/543 (984 words)

	Lorain County Bascule Bridge History
		The Erie Avenue Bridge was built in the late 1930's and opened for traffic in the fall of 1940.
		On Veterans Day in 1988 the bridge was renamed the Charles Berry Bridge in Honor of Charles Berry a Marine from Lorain who lost his life in the battle of Iwo Jima, and was awarded The Congressional Medal of Honor.
		The Charles Berry Bridge is one of the three bridges in the state that O.D.O.T. funds.
	www.lorcnty.org /website/index.asp?webpageid={C21714DC-9519-4FB3-B201-982CE99CDB20} (168 words)

	InPortDover.Com
		Port Dover has a bascule bridge over the Lynn River in the harbour which is 37 years old and is slated for repairs.
		The bridge in Port Dover is a ‘double leaf bascule’.
		Bascule bridges date back to ancient times but it was not until the 1850s that engineers developed the ability to move very heavy spans quickly enough for practical purposes.
	www.inportdover.com /view_article.php?aid=457 (394 words)

	PB Network \| Issue 47 \| Green Bay's Main Street Bascule Bridge (The Ray Nitschke Memorial Bridge)
		With the trunnion bascule, the machinery is mounted on the pit and is stationary during the operation of the bridge.
		The operator tower and piers on the new bridge were constructed using a form liner and were stained red to match the block pattern and color used on the original bridge piers and tower.
		The new bridge was determined to have potential local scour to depths of nearly 14 m (46 feet) in the vicinity of the bascule piers.
	www.pbworld.com /news_events/publications/network/Issue_47/47_08_ElwellJ_GreenBayMainStreet.asp (1635 words)

	FDOT Structures Design Office - Ocean Avenue Bridge Project (Site not responding. Last check: 2007-11-02)
		The footing for the bascule pier is heavily reinforced with steel and is four foot thick.
		It is designed to withstand the heavy loads of bascule bridge operation and the unlikely event of a collision with a large ship.
		The steel for the bascule bridge is preassembled in the fabrication shop to make sure that all parts fit together and that the bridge can be erected true and level.
	www.dot.state.fl.us /structures/botm/OceanAve/oceanavenue.htm (639 words)

	Maintenance and Operations Department
		The High Street Bridge is a two lane double leaf bascule bridge, similar to the bridge at Park Street, which spans the Oakland Estuary for 296 feet.
		This bridge, and the Park Street and Fruitvale Avenue bridges, were built by the U.S. Government in exchange for permission and rights-of-way to dredge the channel between San Antonio Creek and San Leandro Bay.
		Main power to the bridge is supplied by the Bureau of Electricity (City of Alameda) this provides the power to run both or one leaf of the bridge under full power using the 75 hp main motors located in each machinery room.
	www.acgov.org /pwa/dept_maintenance_operation_high_street_bridge.shtml (994 words)

	Bascule Highway Bridge, Palm Valley, Florida (Site not responding. Last check: 2007-11-02)
		The bridge is especially critical since it is on the hurricane evacuation route from the beaches.
		RECOMMENDED MODIFICATION: Replecement of the existing Bascule bridge (10 foot vertical clearance closed) with a bridge having a vertical clearance of 65 feet and a horizontal span of 290 feet between piers.
		The new bridge has a prestressed concrete girder approaches with a built-up steel box girders for the main span.
	www.saj.usace.army.mil /digitalproject/dpn/sajn_850.htm (204 words)

	Moveable Bridges
		Along with the Center Street swing bridge, the BandO bascule bridge, although not in use, still stands as a proud part of Cleveland’s bridge engineering heritage and is prominently displayed in the city’s remarkable inventory of historic bridges.
		While this bridge was not featured in the Company catalogues, the L (Summer) Street Bridge in South Boston, a retractile bridge of similar design, was pictured and it was in service for over 100 years, replaced only in 2002.
		Known as the Essex Bridge, it was one of the oldest of the sate’s movable bridges and was extensively repaired over the years until it was replaced in 1997 by a long span structure after a long period of agitation by the local community.
	www.kingbridgeco.com /moveable_bridges_to_come.htm (3686 words)

	Terminology - Bridge (Site not responding. Last check: 2007-11-02)
		A type of girder bridge in which the piers and deck girder are fastened to form a single unit.
		Unlike typical girder bridges which are constructed so that the deck rests on bearings atop the piers, a rigid frame bridge acts as a unit.
		Although described as a single structure, the Ohio Connecting RR bridge over the Ohio River at Brunot Island could be described as a pair of bridges (one over each river channel) with a trestle at each approach and a trestle connection in the center.
	pghbridges.com /termsBrg.htm (2779 words)

	West Seattle Bridge -1984
		The bridge built during 1981-1984 is a cast in place balanced cantilever segmental bridge.
		The new span was dedicated on July 14, 1984, at a cost of $150 million, and a new pivot-wing bridge later replaced the original bascule bridge.
		In December 1924, the first of two bascule bridges over the Duwamish Waterway at Spokane Street (from south of downtown to West Seattle) is completed.
	bridgepros.com /projects/West_Seattle_Bridge (924 words)

	MHIA Online - Members and Their Products - LODEM Case Studies
		The bridge is equipped with a positive locking strut for use when the bridge is stored in the vertical position.
		This particular application called for a bridge which spanned 31’ which was accomplished by fabricating two “leafs” that would meet in the middle to bridge the gap between the two buildings.
		This bascule bridge features a compact, self-contained power unit and simple controls which can be mounted conveniently on either or both sides of the bridge.
	www.mhia.org /psc/casestudies/lodem/basculebridge.cfm (345 words)

	bascule - Search Results - MSN Encarta
		Movable bridges make up a class of bridge in which a portion of the bridge moves up or swings out to provide additional clearance beneath the bridge....
		Movable bridges are generally constructed over waterways where it is either impractical or too costly to build bridges with high enough clearances...
		At its Annual Convention in New York, in October 1953, The American Society of Civil Engineers installed Daniel V. Terrell, dean of the College of Engineering and director of the Engineering Experiment Station at the University of Kentucky, as its 85th president.
	ca.encarta.msn.com /bascule.html (162 words)

	[No title]
		The University Avenue Bridge, an impressive adaptation of modern classicism to a limestone-faced, concrete on steel double leaf bascule bridge, carries university Avenue across the Schuylkill River.
		The exterior illumination of each bridge operator's house consists of an ornate cast bronze lantern suspended from a bronze pole that extends outward from the parapet, and which faces onto the bridge deck.
		The bridge roadbed and railings continue outward on either side of the bridge abutments onto the banks of the river.
	uchs.net /HistoricDistricts/uavebridge.html (2903 words)

	Composites Bridge Locator > Broadway Bridge over the Willamette River
		The Broadway Bridge over the Willamette River is in the heart of the Portland harbor and is a vital structure to vehicular traffic and the river's marine traffic.
		Originally constructed in 1911- 1912, the bridge is the largest of only three Rall bascule bridges remaining in the United States.
		With each of the double-leaf bascule spans measuring 140’, the Broadway Bridge is also the seventh longest bascule bridge in the world.
	www.martinmarietta.com /Products/bridge.asp?ID=29 (243 words)

	Saginaw Railroad Bascule Bridge Historic Railroad Train Bridge over Saginaw River in Michigan (Site not responding. Last check: 2007-11-02)
		This bridge was built in 1944 by the American Bridge Company and is a good example of the transition from v-laced and latticed members to box beams with punched holes.
		The Port Huron bridge is an earlier example, with a 1931 construction date.
		Despite the misty, cloudy weather I experienced, I got some decent photos of this beautiful bridge, and many wallpaper sized images are available in the photo gallery, in addition to the normal load of standard sized images.
	www.historicbridges.org /truss/saginawb (293 words)

	Tower Bridge Exhibition - Bridge history
		In the 19th century, the east end of London became so densely populated that public pressure mounted for a bridge to the east of London Bridge, as journeys for pedestrians and vehicles were being delayed literally by hours.
		When it was built, Tower Bridge was the largest and most sophisticated bascule bridge ever built ("bascule" comes from the French for "see-saw").
		Nowadays, the bascules are still operated by hydraulic power, but since 1976 they have been driven by oil and electricity rather than steam.
	www.towerbridge.org.uk /TowerBridge/English/BridgeHistory (751 words)

	PB Network \| Issue 47 \| Bridge Electrical Inspections
		Our bridge inspection team in Washington State provides a service that is critical to maintaining operations and safety of a wide variety of bridges throughout the state.
		While we were inspecting movable bridges for many years prior to the passage of U.S. federal regulations that require highway bridge inspections every two years, the passage of that requirement brought on an increased level of movable bridge inspections.
		The majority of the bridge machinery is original, with the exception of the rack pinions and span lock drives that have been replaced.
	www.pbworld.com /news_events/publications/network/issue_47/47_17_CrouthamelB_BridgeElectricalInspections.asp (1838 words)

	Atlantic Beach Bridge (NY 878)
		The six-lane bridge was constructed with a 68-foot-wide roadway, and six-foot-wide walkway for pedestrians and cyclists.
		Two of the bridge's six lanes are closed during the reconstruction project, which was completed in November 2000.
		The old wooden bridge, which is shown just to the east of the new span, was demolished shortly after completion of the new bridge in 1952.
	www.nycroads.com /crossings/atlantic-beach (1449 words)

	Gapers Block : Airbags : Chicago: The Movable Bridge Capital of the World
		The first trunnion bascule bridge in the United States was completed in 1902 at Cortland Street, and it is still there today.
		Most of the bridges you see in Chicago now are of the bascule-type, but examples of the swing bridge, vertical lift and Scherzer lift still exist, though many are now inoperable.
		When bridges need to be raised, the teams leapfrog each other, driving trucks or other vehicles, to open the bridges in turn.
	www.gapersblock.com /airbags/archives/chicago_the_movable_bridge_capital_of_the_world (884 words)

	Road Traffic Technology - Fort Lauderdale Causeway Bridge, FA, USA
		The new bridge increases the vertical clearance from 25ft to 55ft and the channel width from 100ft to 125ft.
		EC Driver designed the bascule main span and was the prime consultant for the final design of the Carina Pier, the temporary bridge, the bascule bridge and maintenance of traffic.
		Traylor Bros, Inc. was the prime contractor for the construction of the permanent bridge and Gimrock was contracted for construction of the temporary bridge.
	www.roadtraffic-technology.com /projects/fort_l (619 words)

	Sanibel Bridge PD
		In addition, improvements to the bascule bridge mechanical and electrical components are being addressed, as well as the protection of the causeway islands and bridge approaches.
		The new structure would have breakdown shoulders, a new bascule, trestle sections strong enough to withstand tidal storm surges, and be elevated above the salt spray zone.
		This alternative proposes a replacement bascule bridge with a navigation clearance sufficient to allow passage of approximately 75 percent of the present waterway users without opening.
	www.lee-county.com /SANIBELBRIDGE (466 words)

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