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New York Architecture
Images-New York Bridges Williamsburg
Bridge |
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click
here for Williamsburg Bridge
gallery |
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architect
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Gustav
Lindenthal |
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location
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Delancey Street
Manhattan to Broadway Williamsburg. |
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date
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1903 |
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style
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Structural Expressionism |
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construction
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steel |
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type
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Suspension
Bridge |
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data
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| Type |
Suspension |
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Year Opened |
1903 |
| # of Decks |
1 |
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# of lanes/tracks |
8 lanes, 2 tracks |
| Total Length |
7308 ft |
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Main Span Length |
1600 ft |
| Highway/RR |
No Highway #, NYC Subway |
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Misc |
Connects
Williamsburg, Brooklyn with the lower east side of Manhattan |
| Toll |
None |
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| Comments |
This bridge is
often forgotten about as is it uptown from the famous downtown
bridges. It has two subway tracks for the J/M/Z lines. |
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The Williamsburg Bridge is a suspension bridge in New York City across the
East River connecting the Lower East Side of Manhattan at Delancey
Street with the Williamsburg neighborhood of Brooklyn on Long Island at
Broadway near the Brooklyn-Queens Expressway (Interstate 278). It once
carried New York State Route 27A and later Interstate 78.
Construction on the bridge, the second to cross this river, began in
1896, with Leffert L. Buck as chief engineer, Henry Hornbostel as
architect and Holton D. Robinson as assistant engineer, and the bridge
opened on December 19, 1903 at a cost of $12,000,000. At the time it was
constructed, the Williamsburg Bridge was the largest suspension bridge
on Earth, and remained so until the Bear Mountain Bridge was completed
in 1924. It is an unconventional structure, as suspension bridges go;
though the main span hangs from cables in the usual manner, the side
spans leading to the approaches are cantilevered, drawing no support
from the cables above. The main span of the bridge is 1600 feet (488 m)
long. The entire bridge is 7308 feet (2227 m) long between cable anchor
terminals, and the deck is 118 feet (36 m) wide. The height at the
center of the bridge is 135 feet (41 m) and each tower is 335 feet (102
m); these measurements taken from the river's surface at high water
mark.
This bridge and the Manhattan Bridge are the only suspension bridges in
New York City that still carry both automobile and rail traffic. In
addition to this two-track rail line, connecting the New York City
Subway's BMT Nassau Street Line and BMT Jamaica Line, there were once
two sets of trolley tracks.
The Brooklyn landing is between Grand Street and Broadway, which both
had ferries at the time. Both withered and went out of business in the
following years.
The bridge has been under reconstruction since the 1980s, largely to
repair damage caused by decades of deferred maintenance. The cast iron
stairway on the Manhattan side, and the steep ramp from Driggs Avenue on
the Williamsburg side to the footwalks, were replaced to allow
handicapped access in the 1990s. The bridge celebrated its 100th
anniversary in December 2003.
No tolls are charged for motor vehicles to use the bridge.
Had the Lower Manhattan Expressway been built, the Williamsburg Bridge
would have obtained the Interstate 78 designation.
Rail tracks
The rapid transit tracks in the center of the bridge were initially used
by the Brooklyn Rapid Transit Company elevated railroad. Today, the New
York City Subway J M Z trains use these tracks.
Trivia
The Williamsburg Bridge appears in the movies The Lost Weekend (1945),
The Naked City (1948), Johnny Suede (1991), American Gangster (2007),
and the 1973 James Bond film Live and Let Die and the novel The Alienist
(1994) by Caleb Carr. The bridge is also in the beginning of film The
Naked Brothers Band.
American jazz saxophonist Sonny Rollins would venture to the
Williamsburg Bridge to spare a neighboring expectant mother the sound of
his practice routine.
Altamonte lead singer James Cashman refers to the Williamsburg Bridge in
the song "Hannah".
Full span, as seen from Wallabout Bay with Greenpoint and Long Island
City in backtround
Locals frequently refer to the bridge as the "Willy B."[citation needed]
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PROJECT OVERVIEW
WILLIAMSBURG BRIDGE
Compiled by Dave "The Bridge
Man" Frieder
Construction Commenced -- Nov. 7th 1896
Construction of Main Cables Commenced-- Aug. 11th 1901
Opened To Traffic-- Dec. 19th 1903 6:00 a.m.
Bridge Commissioner at the Time-- Gustav Lindenthal *
* same person who built Hell Gate Bridge and Queensborough Bridge
[originally known as Blackwells Island Bridge.]
Total length of Bridge-- 7308 feet
Length of Suspended Span-- 1600 feet . 4 feet 6 inches longer than the
Brooklyn Bridge.
Side Spans length each-- 596' 6"
Height of Steel Towers above Mean Water Height-- 332' 9"
Towers sunk to Bedrock by Pneumatic Caisson Method, same as Brooklyn
Bridge
Center of Roadway above Mean Water Height 135 feet
Stiffening Truss-- 40 feet high, Lattice "Town Type" Truss.
Main Cables-- 4. Wires per cable 8112. Strands per Cable 39. Wires per
Strand 208.
All wires in Main Cables are of the Non-Galvanized Type.
Cable Diameter-- 18 6/10 inches including wrapping.
Length of each of the four cables--3224 feet.
Total length of wire in the four cables--23,132 Miles.
Total Weight of Steel in Bridge and Approaches 47,800 Tons.
Approximate cost of construction, in 1903-- $24,188,090.00
When first opened in 1903, Williamsburg
Bridge had four surface or trolley tracks(Streetcars) and two elevated, or
regular train tracks. Regular train service did not cross bridge until
1908. Now, the bridge, has two inner and two outer vehicular roadways and
two subway tracks. Also two 17' wide foot walks.
The Williamsburg was the first all steel, large scale, suspension bridge.
Leffert Lefferts Buck, chief engineer. Born in Canton, New York.
Buck felt it was not necessary to galvanize main cable wires. Side spans
not suspended, rather supported by steel viaducts. Originally one support
per side span, in 1913 two extra supports per span were added due to
increased traffic loads. Total of three supports per side span.
Williamsburg Brooklyn was named after
Colonel Jonathan Williams a U.S. engineer and a a grand nephew to Ben
Franklin. Area was incorporated as a village in 1827. In 1998 Brooklyn
will 100 years as a borough of the City of New York. The original Dutch
spelling of Brooklyn is BREUKELEN.
The Williamsburg Bridge is one of three bridges to use Non-flexible type
of towers. The other two bridges are, the Brooklyn Bridge and the George
Washington Bridge. The main cables of the Williamsburg bridge were
spun by John A. Roebling Sons inc. Same company spun cables for the
magnificent Manhattan Bridge and the great George Washington Bridge. Since
the wires in the main cables in the Williamsburg Bridge are not galvanized
the bridge engineers have had a problem in terms of protecting them from
corrosion. Recent modern methods have been used to repair and protect the
cables.
The Williamsburg
Bridge
Information From the
Library of Congress
On December 19, 1903, New Yorkers
celebrated the opening of the Williamsburg Bridge, the second of three
steel-frame suspension bridges to span the East
River. Designed by Leffert L. Buck and Henry Hornbostel, it had taken
over seven years to complete. Built to alleviate traffic on the Brooklyn
Bridge and to provide a link between Manhattan and the Williamsburg
section of Brooklyn, the 1,600 foot Williamsburg Bridge was the world's
longest suspension bridge until the 1920s.
Originally open to horse-drawn carriages,
bicycles, and pedestrians, the Williamsburg Bridge soon became a vital
transportation route for trolleys and trains, spurring the growth of
Brooklyn's working-class neighborhoods. In the 1920s, the bridge was
reconfigured to accommodate eight lanes of traffic. Today, it carries over
140,000 vehicles per day and some 100,000 subway riders.
On hand to film the opening of the
Williamsburg Bridge were cameramen James Blair Smith and G.W.
"Billy" Bitzer. Their films, Opening
of New East River Bridge, produced by the Thomas Edison
Company, and Opening
the Williamsburg Bridge, produced by the American Mutoscope and
Biograph Company, contain footage of the bridge and close-ups of the
dignitaries and press in attendance. Note the large wooden "box"
cameras carried by the press photographers.
- See more photographs of the Williamsburg
Bridge. Search on Williamsburg Bridge in these collections:
"Considered
from the aesthetic standpoint, the (Williamsburg) Bridge is destined
always to suffer by comparison with its neighbor, the (Brooklyn) Bridge.
Whatever criticism has been made against the conservative features of the
latter structure, it has always been conceded to be an extremely graceful
and well-balanced design. It is possible that, were it not in existence,
we would not hear so many strictures upon the manifest want of beauty in
the later and larger (Williamsburg) Bridge, which is destined to be
popular more on account of its size and usefulness than its graceful
lines. As a matter of fact, the (Williamsburg) Bridge is an engineer's
bridge pure and simple. The eye may range from anchorage to anchorage, and
from pier to finial of the tower without finding a single detail that
suggests controlling motive, either in its design or fashioning other than
bald utility." - Scientific American (1903)
No poetry has been written about it, as
Hart Crane did with the Brooklyn Bridge. No songs have been written about
it, as Paul Simon and Art Garfunkel did with the 59th Street (Queensboro)
Bridge. No one ever attempted to sell this bridge. Indeed, before it was
ever completed, the span was described by John DeWitt Warner as a
"surrender of the City Beautiful to the City Vulgar." While not
renowned for its beauty, the Williamsburg Bridge has fulfilled its
original mission to relieve traffic congestion on the Brooklyn Bridge, and
to serve as an important link between Manhattan and the Williamsburg
section of Brooklyn.
PLANNING THE SECOND EAST RIVER SPAN:
As early as the late 1860's, John Roebling, the designer of the
Brooklyn Bridge, anticipated the need for additional bridges across the
East River to keep up with population growth in the cities of New York and
Brooklyn. One bridge was proposed between the Lower East Side of Manhattan
and the Williamsburg section of Brooklyn. Throughout the 1880's, leaders
in Williamsburg battled officials in New York City and powerful ferry
interests who did not want the bridge. Although legislative approval had
been obtained from Albany for construction of the bridge, the bill was not
followed up by appropriations.
In 1892, Frederick Uhlmann, who sought to extend his Brooklyn elevated
railways across the East River into Manhattan, planned two new rail lines:
one serving the West Side manufacturing districts, and the other serving
the Wall Street area. He also planned two bridges: a suspension bridge for
trains, carriages and pedestrians at the present site of the Williamsburg
Bridge, and a cantilever bridge exclusively for trains just north of the
present site of the Manhattan Bridge. In March 1892, the New York State
Legislature approved a bill that founded the East River Bridge Company.
Stymied by legal battles between Uhlmann and the elevated railway
interests in Manhattan, leaders in Williamsburg lobbied Albany for the
creation of a new body, the New East River Bridge Commission, and in May
1895, the new commission purchased Uhlmann's charter for $200,000.
CONSTRUCTION
OF THE WILLIAMSBURG BRIDGE: Leffert L. Buck, the newly appointed
chief engineer, first announced plans for the Williamsburg Bridge in an
1896 issue of Engineering News. The cost of the proposed bridge was
originally estimated at $7 million, less than the $15 million cost of the
Brooklyn Bridge. Construction began in November of that year.
From the onset, economic considerations
strongly influenced the design of the Williamsburg Bridge. The decision to
have the cables come down straight from the towers to the anchorages and
not support the side spans meant that shorter and lighter cables could be
used. Employing less expensive, lighter steel towers meant that
foundations could be made smaller and that towers could be built taller.
Steel was also used for the approaches, cutting the time and expense of
constructing masonry-arch approaches.
The 1,600-foot-long main suspension span for the Williamsburg Bridge
exceeded the previous record-holder, the Brooklyn Bridge, by four and
one-half feet. Compared to the main span, the 300-foot-long side spans are
relatively short. However, the side spans are supported not by suspender
cables, but from steel arches from below. From approach to approach, the
bridge was 7,200 feet long.
The 310-foot-tall towers, the first all-steel towers to be employed for a
suspension bridge, support four main cables, which are carried on saddles
atop the towers. Each of the 4,344-ton main cables, which measure 18Ύ
inches in diameter, is comprised of 37 strands of 208 wires. Unlike those
found on other New York bridges, the wires on the Williamsburg Bridge were
not galvanized, making them less susceptible to hydrogen embrittlement.
(However, the wires do have the problem of rusting due to the absence of a
commonly applied zinc coating.) Nearly 17,500 miles of wire are used in
the cables that suspend the bridge 135 feet above the East River.
The 40-foot-deep stiffening trusses were designed not only to withstand
high winds, but also to support rail traffic on the deck. Originally, the
design had the above-deck truss shift below the deck at the side spans.
Later, the design was changed such that the stiffening truss was above the
deck from anchorage to anchorage.
Despite the technological advances, doubts were raised about the bridge
after a fire in November 1902. The fire, which started in a worker shack
atop one of the towers, spread to the cables and foot walks. However,
damage to the structure was minimal. Proving the bridge's strength, the
Roebling Company, which provided the wire rope and woven the cables,
simply spliced new wires into the burned-out section.
When noted bridge designer Gustav Lindenthal took over as chief engineer
of the Williamsburg Bridge in 1902, he had serious reservations about the
design and appearance of the bridge. Nevertheless, with the bridge nearing
completion, he continued the project. Upon the completion of the
Williamsburg Bridge, Lindenthal avoided references to its design,
emphasizing instead that it was twice as strong as the Brooklyn Bridge.
THE SECOND EAST RIVER BRIDGE OPENS:
The Williamsburg Bridge opened on December 19, 1903 to horse-drawn
carriages, bicycles and pedestrians. However, due to complications between
Greater New York and the privately owned railway companies, elevated
trains did not run on the bridge until 1908. The final cost of the bridge
and its approaches was $24.2 million, more than three times the original
cost estimate.
For a brief period, the Long Island Rail Road (LIRR) ran passenger service
along an elevated extension across the Williamsburg Bridge into Manhattan.
The LIRR spur split from the existing Atlantic Avenue line northwest onto
the Broadway elevated line (today's J, M and Z subway lines), crossed the
Williamsburg Bridge, and continued south to Chambers Street.
The bridge not only served the traffic needs of a growing population, but
also greatly affected migration patterns of ethnic groups. Before the
bridge opened, first- and second-generation Irish and German settlers (who
called the enclave "Kleine Deutschland") lived in the
Williamsburg section of Brooklyn. When it opened, an influx of Jewish
settlers from the overcrowded Lower East Side crossed the "Jews'
Bridge" into Williamsburg. In turn, long-time residents moved out to
Queens.
In 1910, the City of New York removed the toll on the Williamsburg Bridge
after it passed a law prohibiting the use of tolls to finance bridge
construction and maintenance
Type of
bridge
..
...
Suspension
Construction started
...
November 7, 1896
Opened to
traffic
. December
19, 1903
Length of main span
..
1,600 feet
Length of side spans
.
300 feet
Length, anchorage to anchorage
.
2,200
feet
Total length of bridge and approaches
..
.. 7,308
feet
Number of traffic lanes
...
8 lanes
Number of subway tracks
.. 2
tracks
Height of towers above mean high water
..
.. 310
feet
Clearance at center above mean high water
..... 135 feet
Number of cables
.
4 cables
Length of each of four cables
..
..
2,985 feet
Diameter of each cable
..
18Ύ inches
Total length of
wires
.
.. 17,500 miles
Weight of cables and suspenders
.... 4,344
tons
Structural
material
... Steel
Tower
material
.
Steel
Deck
material
...
Steel
Cost of original structure
...
$24,200,000
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An
XXXcellent Bridge
by Greg Ayres
New
York has its mutated mountain range of buildings and
landmarks, but more than just the visible structures,
there are layers upon layers of phantom architecture in
the form of past occupancies,aborted projects and
popular \fantasies that provide completely different
images to the New York that exists now.
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Like Willie
Wonka's infamous jaw-breaker, NYC is made up of layer
upon layer of distinctly different flavors, stacked
snugly one on top of the other. Rem Koolhaas says that
New York is fated to a "Cyclic restatement of a
single theme: creation and destruction irrevocably
interlocked, endlessly reenacted. Barbarism giving way
to refinement." So if it's worth sucking away at
some of the layers, then we might as well eat our way to
the very historical core, when Mother Nature's wild
children roamed the lush hills, valleys and marshlands
of New York. It was 1609 when the Mohican tribes lost
the land that was originally their birthright to Henry
Hudson and the parade of "civilized", white
culture which closely followed. The old world (Europe
and Eastern civilization) was becoming over crowded and
people were looking to the west - towards the promised
land. Millions of Christians were ready to cross their
arresting geographical barrier into the unknown, new
world of America. "North American barbarism
insidiously giving way to European refinement."
Sometime in the mid 1620's, New Amsterdam (the original
name for New York) was colonized and the whole
aboriginal race was plucked by the stem and uprooted.
FAST FORWARD: ABOUT TWO HUNDRED YEARS It's the early
1800's and humans have congregated in unprecedented
densities in Manhattan. Richard Woodhill begins to offer
a ferry service departing from Corlear's Hook in
Manhattan. The destination: his recently purchased 13
acre parcel of land - which he named Jonathan Williams.
The ferry docks at the foot of what is now N.2nd Street
in Brooklyn. He was hoping to develop a domestic refuge
for the masses working in the city; alas, Woodhill's
plans never came to fruition. Then, in 1818, David
Dunham succeeded where Woodhill had not, becoming the
father of Williamsburgh. In 1852, with the population
just brimming at 31 thousand, Williamsburgh incorporated
as a city, consolidated with Brooklyn, and dropped the
"h" to become Williamsburg. The community,
which was agriculturally based, rapidly became what
might be called North America's first suburb. Skirting
the world's greatest industrial carnival, it was
inevitable that people would seek cover from life's
laborious storm, in the waiting arms of Williamsburg.
Sanctuary was just a boat ride across the East River.
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Then in 1883,
Brooklyn officially consummated its relationship to
Manhattan, with the completion of the Brooklyn Bridge.
The Culture of Congestion. New York architecture is a
model for the exploitation of congestion. Between 1890
and 1940 a new culture selected manhattan as a
laboratory - where the invention and testing of a
metropolitan lifestyle and its attendant architecture
could be pursued as a collective experiment in which the
entire city became a factory of man made experience.
Here, the splendor and misery of the metropolitan
condition combine to formulate hyper density. The recipe
alchemizes innovation with absurdity, and a strange brew
bubbles over. Peoples' attitudes were on the cusp of
daring adventure. It is the turn of the century - the
gay nineties. There is an air of the fantastic
surrounding everything and anything is possible. MAKING
NUMBER TWO By 1900, the population of Williamsburg had
escalated to 105 thousand. Under pressure from Senator
Patrick McCarren, the powers that be in Albany,
grudgingly appropriated funds for the building of the
Williamsburg Bridge. The building committee commissioned
Lefert L. Buck to design what was provisionally called,
"No. 2". It was the beginning of a new age -
that of the machine - brightly lit by the industrial
dawning of steel. Buck put himself at the epicenter of
this innovation by erecting two steel towers - looming
325 feet over the East River. The bridge was criticized
from the moment the plan was unveiled, for its graceless
form and bald utility. Built as an alternative to the
overcrowded Brooklyn Bridge, it was the longest and
heaviest suspension bridge in the world. Buck reinforced
his behemoth creation with steel lattice work, called
stiffening trusses. The structures which extend between
the anchorages, (and give the bridge great strength)
were not aesthetically favored by citizens at large. The
design could have been a response to Alexendre Gustav
Eiffel, who had become famous for his tower - built in
1889. It's even possible that the two prodigious
architects could have met previously when they were both
building railways in South America, circa late 1870's.
But there was something Buck was doing that Eiffel had
not; he was using steel. Favored or not, Buck was
clearly at the forefront of this particular
architectural revolution. Consistent with its cycle of
destroying the old to make way for the new, the city
went about auctioning off homes that stood in the
unfortunate way of progress.
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bridge was certainly no respecter of private property.
The process was ruthless; as dwellings, churches and
theaters were rapidly destroyed to make room for the
entranceways on either side of the River. In Manhattan
and Brooklyn together, almost 20 thousand people were
displaced. Homes and landmarks were not the only
casualties of advancement - thirty-one men lost their
lives while building the bridge. Construction, was in
and of itself a perilous feat. Men seemingly hung in
mid-air, perched on a "false bridge" (wooden
scaffolding) or dangled from a precarious pulley
system as they ran the incredibly heavy cables back
and forth. One of the most treacherous jobs was
digging the foundations which would hold the
anchorages. The men who dug were called sand hogs, and
once they got down to a depth of 70-90 feet they were
paid an astounding $3.25 per hour. Lack of oxygen and
exhaustion allowing only a few hours of work at a time
for each man. Originally scheduled to take five years
to build, construction was set back by a disastrous
fire in 1902. A rivet stove near the very top of the
false bridge was tipped over by a weary worker and the
wooden framework went up like a match. Fire fighters
arrived at the scene, only to watch helplessly as the
flames blazed over three hundred feet above their
heads. Miraculously, the damage was minimal and
construction resumed at an even more furious pace.
Finally, on a cold and hazy morning. a gray, yet
luminous veil hung over the East River and blanketed
the seven thousand, three hundred and twenty-five foot
long passageway. It was December 19, 1903, the
official opening day of the Williamsburg Bridge. It
had taken seven years, 15 million dollars and thirty
one lives to create what most people were calling a
monstrous eyesore. Now as the sun rose and the fog
lifted, the Williamsburg Bridge came into full
visibility. The Mayor of New York City, Seth Low stood
at the entrance-way to the Manhattan side of the
bridge. J. Edward Swanstrom, president of the Borough
of Brooklyn, stood at the opposite end. At 2:30 pm the
two men walked onto the bridge and a few minutes
later, just east of the exact center, shook hands. It
was a gesture which represented the manifestation of a
dream called The Greater New York Area - the greatest
city in the world. The same year that the WB opened,
Frederick Thompson opened Luna Park, an amusement
pavilion to rival Coney Island. |
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He said,
"It's marvelous what you can do in the way of
arousing human emotions by the use you can make
architecturally of simple lines." When the bridge
opened officially to the public on December 20th,
people had been waiting in the cold, winter darkness
since midnight, to be among the first on the bridge.
Potential record setters crowded at the entrance ways
on both ends. The first man to make a round trip -
Wally Owens, did so in a shiny, red, horseless
carriage. Nearly mowing down several police officers,
he made the trip in six minutes and fifty seconds. As
the day wore on, many other records were set. The
first couple to kiss; the first one-legged man to
stump across. A bicyclist, rode backwards, with much
difficulty. And at 6:20pm the first dog trotted
across. The most noteworthy record was set by a
nameless maverick - who brought a flask along - to be
the first person to get drunk on the bridge. The
Williamsburg Bridge was seen as a passageway to a new
life by thousands of Jewish immigrants fleeing the
slums of the Lower East Side. They and others flocked
to the latest addition of Greater New York like
over-worked Manhattan-ites escaping reality at the
latest amusement park. In 1917 Williamsburg had the
most densely populated blocks in the city and by 1920
the population was soaring at 260 thousand. The
numbers continued to climb, as the thirties brought
refugees evading the dark blanket of Nazism which was
spreading at an alarming rate. Bessie Smith's A Tree
Grows in Brooklyn (pub. 1943), tells the story of
Francie, growing up in the neighborhood before WWI.
Francie looks at the bridge from her roof and sees it
as a means of escape from her dull domestic life.
Later, when she finally crosses it, she is
disillusioned by Manhattan. The Bridge still seems
like a means for escape, but for escaping from
Manhattan rather than to it. When enough people
finally escape, then perhaps the cycle of destroying
the old to make way for the new will begin again.
Perhaps itΉs sad to think of another really cool
layer of life getting covered up. But a neighborhood
can't truly live if it's living in the past. So the
culture of congestion will continue consuming history
to make room for itself. The flavor keeps changing.
And really isn't that what makes our city so great. So
keep sucking on that gobstopper. Change is ultimately
best when embraced lovingly. Why resist? The next
thing you taste just might be the transformation of a
lifetime.
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special thanks to www.11211magazine.com
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Replacement for corroding 1903 bridge connecting Brooklyn and Manhattan
Preliminary design completed 1988  
Lead Designers: Henry N. Cobb, Harold Fredenburgh
Structural Engineer: Dr. Bruno Thόrliman
This proposal calls for the erection of a cable-stayed bridge just 48 feet to the south side of the existing bridge. Construction, executed over 32 months, would be accomplished without interruption of navigation, vehicular traffic or mass transit. Upon completion of the bridge, sections of the approach viaducts would be laterally launched literally slipped into place and attached to existing touchdown points in Manhattan and Brooklyn, requiring a one-time traffic shutdown of only 80 hours.
The bridge has a central span of 1,600 feet and side spans of 661 feet. The main bridge deck and viaducts consist of 10-foot reinforced concrete slabs that rest on transverse beams spaced 22 feet apart, and provide a system for deck replacement without auxiliary support. The width of the deck is kept to a minimum (105 feet) by locating transit below the roadway. This strategy permits simpler structural solutions and a more advantageous placement of supports, while providing the bridge with a slender appearance and avoiding unnecessary impingements on the land at either end. The tracks are rerouted in Brooklyn to skirt the south side of Washington Plaza, instead of bisecting it as they do today, in order to enhance the urban potential of the area.
Two Delta-Frame bridge towers rise 585 feet above the river. Each encloses the top cable anchors of the bridge in humidity-controlled chambers for protection against corrosion. Other innovative systems facilitate the inspection and renewal of bottom anchors and the replacement of cables without temporary strengthening. The legs of each tower, twisted 90 degrees, yield necessary longitudinal stiffness at the base of the bridge and the required transverse stiffness at the top, all within the context of an elegant architectural solution.
Motorists and subway passengers enjoy skyline views through open construction while pedestrians and bicyclists, removed from traffic on an upper timber deck, enjoy spectacular views in every direction. Scenic remnants of the granite abutments of the old bridge are incorporated as belvederes into pedestrian systems on either side of the river, and are supplemented in Manhattan by a new foot ramp to the East River esplanade. A new vehicular link to the FDR Drive is also proposed to alleviate congestion. Improvements to the Brooklyn embankment include a new bus facility and green market on land gained from the realigned tracks.
Major Components
Cable-stayed 1,600 ft. main span, 661 ft. side spans; Delta-Frame towers: legs rotate through 90°, join at 432 ft. above water; tower height 585 ft. above water; road deck 170 ft. above water; navigational clearance: 135 ft.; three transit tracks below road deck; timber deck above roadway for pedestrian/bike access
http://www.pcfandp.com/a/p/8705/s.html
Proposal is most probably dead given the current bridge is repaired.
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contact
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nyc-architecture.com
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