- Vertical lift bridge
BridgeTypePix
image_title=
type_name=Vertical lift bridge|sibling_names=Bascule bridge ,swing bridge ,folding bridge ,retractable bridge
descendent_names=Submersible bridge ,table bridge
ancestor_names=Truss bridge ,
carries=Automobile, pedestrians, truck, light rail, heavy rail|span_range=Short
material=Steel
movable=Yes
design=medium
falsework=Depends upon degree of prefabricationA vertical lift bridge or lift bridge is a type of
movable bridge in which a span rises vertically while remaining parallel with the deck.The vertical lift offers several benefits over other movable bridges such as the bascule and swing span bridge. Generally speaking they cost less to build for longer moveable spans. [Troyano, Leonardo Fernandez: "Bridge Engineering: A Global Perspective", Thomas Telford Publishing, 2003, p. 731] The counterweights in a vertical lift are only required to be equal to the weight of the deck, whereas bascule bridge counterweights must weigh several times more than the span being lifted. As a result, heavier materials can be used in the deck and so this type of bridge is especially suited for heavy railroad use.
Although most vertical lift bridges use towers each with counterweights, some use hydraulic jacks located below the deck. An example is the 16m span bridge at St Paul avenue in Milwaukee [op. cit., p. 729] (see also
table bridge s). Another design used balance beams to lift the deck, with pivoting bascules located on the top of the lift towers. [op. cit., p. 732] An example of this kind was built at La Salle in Illinois, USA.The biggest disadvantage to the vertical lift bridge (in comparison with many other designs) is the height restriction for vessels passing under it. This is a result of the deck remaining suspended above the passageway.
Examples
Canada
* Bridges 5 (Glendale Avenue Bridge), 11 (Allanburg Bridge) and 21 (Clarence Street Bridge) on the
Welland Canal , all built during the late 1920s as part of the Fourth Canal expansion project (1913-1932). In addition, there are also Bridges 13 (Main Street Bridge), 17 (Dain City Railway Bridge) and 18 (Forks Road Bridge) on theWelland Recreational Waterway (a former channel of the Welland Canal). However, these bridges have not been operational since 1973. Bridges 13 and 18 have had their counterweights removed while the machinery for Bridge 17 has been dismantled. In addition, Bridge 18 no longer possesses its towers; they were removed for ease of maintenance.
*Burligton Lift Bridge, over the Burlington Canal,Burlington, Ontario . Information is available from [http://www.tc.gc.ca/programs/surface/bridges/burlington.htm Transport Canada]
*Pretoria Bridge over theRideau Canal inOttawa ,Ontario
*Selkirk Lift Bridge over the Red River inSelkirk, Manitoba
*Victoria Bridge over theSaint Lawrence River connecting Saint-Lambert andMontreal ,Quebec .
*Second Narrows Bridge Vancouver , BC overBurrard Inlet .
*Okanagan Lake Bridge inKelowna , BC acrossOkanagan Lake .
*Shippagan Bridge Shippagan , NB overShippagan Bay .Indonesia
*
Jembatan Ampera (Ampera Bridge) - an automobile lift bridge located in Palembang that cross the Musi River.United States
*
Aerial Lift Bridge - an automobile bridge inDuluth, Minnesota which began life as an aerial transfer or ferry bridge.
*Arthur Kill Vertical Lift Bridge - connectingElizabeth, New Jersey , andStaten Island ,New York ; at 170 m span, the longest in the world.
*ASB Bridge - A bridge that handled both trains and cars on two decks over theMissouri River inKansas City, Missouri .
*Burlington-Bristol Bridge - A two-lane bridge over theDelaware River , joiningBristol, Pennsylvania withBurlington, New Jersey betweenPhiladelphia andNew York City .
*Cape Cod Canal Railroad Bridge - a single-track railroad bridge over theCape Cod Canal inBourne, Massachusetts .
*Cape Fear Memorial Bridge - A four-lane bridge over theCape Fear River that joins Wilmington andBrunswick County, North Carolina .
*Chesapeake & Delaware Canal Lift Bridge - a single-track railroad bridge over theChesapeake and Delaware Canal inDelaware that was built in 1966 for thePennsylvania Railroad and replaced an earlier structure when theU.S. Army Corps of Engineers widened the canal in the mid-1960s. It is the only bridge of its type along the canal, with earlier highway lift or swing bridges being replaced by high-level crossings.
*Claiborne Avenue Bridge - A four lane bridge over theICWW carryingLA 39 inNew Orleans
*Danziger Bridge The world's widest vertical lift movable bridge, at seven lanes, over theICWW inNew Orleans
*Hastings Rail Bridge - A single track railroad bridge atHastings, Minnesota over theMississippi River
*Hawthorne Bridge - A four lane bridge over theWillamette River inPortland, Oregon . Opened in 1910, it is the oldest operating vertical lift bridge in theUnited States . [cite web | publisher = Portland Department of Transportation | title= Regional Traffic Report | url= http://www.portlandtransportation.org/trafficreports/trafficreportregional.htm | accessdate = 2006-11-05 ]
*Main Street Bridge - A four-lane bridge over theSt. Johns River in downtownJacksonville, Florida .
*Marine Parkway-Gil Hodges Memorial Bridge - crossesRockaway Inlet betweenBrooklyn andQueens , New York; designed in 1937 byDavid Steinman .
*Murray Morgan Bridge - Steel lift bridge inTacoma, Washington . Notable for its height above water, sloping span and overhead span to carry a water pipe. Closed October 23rd, 2007.
*Park Avenue Bridge - 160m span inNew York City , replaced a swing bridge in 1960.
*Portage Lake Lift Bridge - A bridge which connects theMichigan cities of Hancock and Houghton
*Sarah Mildred Long Bridge and Memorial Bridge - Two lift bridges (out of 3 bridges) over thePiscataqua River betweenPortsmouth, New Hampshire andKittery, Maine .
*Stillwater Bridge - A highway bridge that joinsStillwater, Minnesota withHoulton, Wisconsin over the St. Croix River.
*St. Paul Union Pacific Vertical-lift Rail Bridge - A single-track railroad bridge in downtownSt. Paul, Minnesota over the Mississippi River.
*Steel Bridge - A double-lift bridge inPortland, Oregon over theWillamette River . Its bottom deck carries railroad tracks and a bike lane and can be lifted independently of the upper deck with a road and light rail tracks. It is the only double-deck bridge with independent lifts in the world. [cite web |url=http://egov.oregon.gov/ODOT/HWY/GEOENVIRONMENTAL/docs/Historic_Bridge/Willamette_Steel_Bridge.doc |title=Willamette River (Steel) Bridge |accessdate=2007-08-25 |year=1999 |format=DOC |work=Portland Bridges |publisher=Oregon Department of Transportation ]
*Tower Bridge - A four-lane bridge over theSacramento River connecting Sacramento andWest Sacramento, California .France
* Pont de Recouvrance - Over the Penfeld in Brest giving access to the military arsenal.
* Pont Gustave-Flaubert - Over the Seine in Rouen
* Pont Levant de Crimée - Over the Ourcq Canal, the last surviving lift bridge in
Paris United Kingdom
*
Kingsferry Bridge - built in Kent in 1960.
*Turnbridge Locomotive Lift Bridge - highly unusual bridge at Turnbridge inHuddersfield .
*Salford Quays lift bridge - carries pedestrians across theManchester Ship Canal .
*Tees Newport Bridge - 82m span, first major lift bridge in the UK.Australia
*
Ryde Bridge - road - Ryde, Australia 1935 - closed
*Alexandria Canal - rail - Mascot - closed
*Port Adelaide - rail - opened 2008
*Bridgewater Bridge - road-Bridgewater, Tasmania - opened
=Gallery ofSee also
*
Movable bridge for a list of other movable bridge types
*Table bridge for a vertical lift bridge without visible lifting means
*Submersible bridge for a similar disappearing bridgeReferences
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