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Here, three tracks are provided for loading the barge. On the barge the three tracks are spread to allow clearance for the freight cars. The slip consists of pilings and guide boards to accurately position the barge relative to the apron. Once the barge is located properly, links are lowered from the
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While the apron shown could bear the weight of a locomotive, it could not withstand the traction, so a string of flatcars was used to link the locomotive to a short string of railcars, which were then moved on or off of the barge. If a locomotive was to be moved (a rare event), it would be moved by
226:, operated along The Embarcadero by the state of California in support of maritime traffic. This was used extensively in an era when large cargo ships would contain crates or pallets of stores, moved to and from the ship's cargo holds by crews of
242:. Southern Pacific eventually replaced their multiple tug and barge system with a single specialized ferryboat. Two ferry slips were used by Santa Fe in San Francisco, here near China Basin, and at the north edge of town near the
84:- when elevated it acts as a wave guard and is lowered to a horizontal position at the terminus to meet a permanent road segment that extends under water. In other cases, the ramp is installed at the ferry slip and is called a
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ferry slip used water tanks as a portion of the counterweight, with the amount of water (provided by gravity from a local creek) regulated to move the apron up or down by admitting or draining water from the tanks.
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was positioned on the left side of the barge (our right in the apron view), pulling it with a stout rope called a springline. Nearly identical structures were used around
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and specialized trucking. The rise of the Port of
Oakland and its dominance over San Francisco as a freight port is an example of the exploitation of a
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for connection with the major transcontinental rail lines, with a small amount of traffic for
California's northern coastal region (the so-called
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92:. Such a ramp is adjustable to accommodate varying water heights and ferry loadings and to move it out of the way during approach and exit. If
222:. It is no longer in use. It remains intact but there are no longer any connecting rails along the shoreline - once the province of the
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another locomotive using the same method. The auxiliary track to the left of the headworks was for storage of the flatcar string.
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Facilities very similar to those pictured above were still in commercial operation as of 2007 in the
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by a competitor with a relatively insignificant investment in the older form of the technology.
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San
Francisco is no longer a significant port for freight as the mode of transport is now in
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across the bay, conveniently close to the land modes of container transport -
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apron to engage hooks on the barge, locking the linkspan and barge together.
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Often a ferry intended for motor vehicle transport will carry its own
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Similar structures are used to receive barges, particularly if the
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was a principal crew change point for maritime operations of the
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In some parts of the world, the structures are also known as
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New York
Central Railroad 69th Street Transfer Bridge
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457:for a list of other movable bridge types
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206:Historical significance of this example
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353:Lake Champlain Transportation Company
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351:Automobile apron and ferry of the
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58:. A similar structure called a
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314:New York New Jersey Rail, LLC
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382:Woodfibre, British Columbia
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445:Landing (water transport)
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212:San Francisco, California
210:This example, located in
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302:Jersey City, New Jersey
236:San Francisco Peninsula
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401:Transport in Shanghai
335:Tinnsjø railway ferry
287:disruptive technology
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130:San Francisco example
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517:Nautical terminology
512:Coastal construction
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306:Bush Terminal Yard
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481:Train ferry
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62:receives a
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496:Categories
488:References
425:Drawbridge
271:containers
228:stevedores
104:for them.
60:barge slip
44:ferry slip
36:BC Ferries
420:Car float
109:linkspans
68:car float
52:ferryboat
25:Dartmouth
450:Linkspan
408:See also
338:SF Hydro
283:railroad
252:Richmond
124:railcars
94:railcars
86:linkspan
75:vehicles
476:Slipway
320:Gallery
260:Tiburon
248:Oakland
136:tugboat
72:wheeled
48:docking
304:, and
185:Right:
102:tracks
430:Ferry
181:Left:
120:barge
98:ferry
90:apron
64:barge
466:Port
395:The
111:and
308:in
300:in
262:on
250:or
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42:A
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