There are 2,027 bridges in NYC.
              I'm trying find all of them.
                         And then cross all of them.
Showing posts with label truss. Show all posts
Showing posts with label truss. Show all posts

Saturday, July 12, 2008

The Grand Street Bridge

Only 2,012 more to go ...

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The Grand Street Bridge
Spans - Brooklyn to Queens over the East Branch of the Newtown Creek (Possibly AKA the English Kills?)
From Gardner Avenue in Brooklyn to 47th Street in Queens

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Grand Street is a two-lane local City street in Queens and Kings Counties. Grand Street runs northeast and extends from the Brooklyn Queens Expressway in Brooklyn to Queens Boulevard in Queens.
The road is known as Grand Street west of the bridge and Grand Avenue east of the bridge.
The Grand Street Bridge is a 69.2m long swing type bridge with a steel truss superstructure.

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The general appearance of the bridge remains the same as when it was opened in 1903. The bridge provides a channel with a horizontal clearance of 17.7m and a vertical clearance, in the closed position, of 3.0m at Median High Water and 4.6m at Median Low Water.

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The bridge structure carries a two-lane two-way vehicular roadway with sidewalks on either side. The roadway width on the bridge is 6.0m and the sidewalks are 1.8m wide. The height restriction is 4.1m.
The approach roadways are wider than the bridge roadway. For example, the width of Grand Avenue at the east approach to the bridge (near 47th Street) is 15.11m.

Bridge facts from NYC DOT

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The Grand Street Bridge is one of five (need to fact check this as of 07/08) bridges which connect Brooklyn to Queens across the Newtown Creek and it's branches, Maspeth Creek and The English Kills.
Those Bridges are:
The Pulaski Bridge
The Greenpoint Avenue/JJ Byrne Memorial Bridge
The Kosciuszko Bridge
The Grand Street Bridge
and the Metropolitan Avenue Bridge

"The Newtown Creek is a murky estuary that runs 3 1/2 industrialized miles along the border of Greenpoint, Brooklyn and Maspeth, Queens. Once a site of mansions, then a mecca for shipbuilders, the creek is now a toxic dumping ground that bubbles up raw sewage every time it rains. Newtown Creek has been given the lowest possible cleanliness rating by both New York City and New York State. The Riverkeeper, wrote of the creek:

"It fails to meet even the most basic goals of the 1972 Clean Water Act. Nearly the entire stretch of the creek is heavily industrialized, there is virtually no public access, and water dependent industries have stagnated. A boat trip up the creek is a journey into the heart of darkness, with the backdrop of the Manhattan skyline as a reminder of its real world locale."

pbs.org

Pedestrian and Bicycle Access:
There is a pedestrian pathway on this bridge, but I don't recommend cycling on it.
Most cyclists merge into traffic and cross the metal grating because the Brooklyn side of the path is a completely demolished, uneven dirt path and stairs.



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Random Bridge Factoids:
The Grand Street Bridge looks very similar in character and design to the Carroll Street Bridge which was completed in 1889. Unfortunately, this bridge hasn't received as much love over the years and it shows.

The Newtown Creek has a long history of tragedy:

* January 1894: At least four workers dredging the creek died after a flimsy foot bridge they were standing upon collapsed.
* July 1894: Two boys, apparently brothers, drowned after they evidently got caught in the “ooze and slime” at the bottom of the creek, which is composed of soft sediment.
* January 1896: A Polish priest of the Roman Catholic Church fell into the creek and drowned.
* June 1910: A boy, roughly age 12, drowned in the creek at the foot of Ten Eyck Street in Williamsburg, Brooklyn. His clothing was found nearby.
* February 1928: A 29-year-old worker was killed when a 325-ton draw span was moved upstream to make way for a new bridge.
* January 1934: Two men drowned after their car plunged into the creek from the Penny Bridge, linking Greenpoint, Brooklyn, and Long Island City, Queens.
* November 1942: A 28-year-old diver drowned in the creek off Review Avenue in Long Island City “when his diving helmet became detached in an undetermined manner while he was searching for a link in an oil pipe crossing the creek,” The Times reported.
NYTimes
DrownedNewtown

January 26, 1896, New York Times

"The unguarded condition of Newtown Creek at the Grand Street Bridge, was responsible for another drowning accident early yesterday morning. The victim was a tall, heavily built man, who, from papers found in his pockets, is supposed to be the Rev. Leonard Syczek, a Polish priest of the Roman Catholic Church."

Borough: Brooklyn/Queens
Type: Swing
Waterway: Newtown Creek
Miles from Mouth: 3.1
Length: 555'
Max. Span: 227
Roadways: 1 - 19' 7"
Sidewalks: 2 - 6' 0"
Construction Cost: $191,008.19
Land Cost: $14,663.53
Total Cost: $205,671.72
Date Opened: Feb. 3, 1903

In 1998 (the last year I could find data for) it opened 86 times both for testing and water traffic


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Thursday, September 27, 2007

The Triborough Bridge

Only 2,021 more to go...

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View of the pedestrian path on the East River section crossing from Astoria Queens to Randall's Island.

Spans Manhattan-Bronx-Queens, crossing Hell Gate (East River), The Harlem River, and the Bronx Kill.
The Triborough Bridge is a complex of three bridges connecting the three New York City boroughs of the Bronx, Manhattan, and Queens. The bridge uses what were originally two separate islands, Ward's Island and Randall's Island to support the center of the span.

The Robert Moses Building is the headquarters of M.T.A. Bridges and Tunnels, the successor to the old Triborough Bridge Authority. Robert Moses, the ultimate modern urban planner, kept his office at the center of his empire - on Randall's Island at the base of his biggest moneymaking bridge. Both the building and his office have been renovated over the years and no longer reflect the omnipotence of Moses at his peak.

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The Triborough does have a pedestrian path. It is mostly used by bicyclists who are legally required to dismount as they cross. Very few do so - until they run into one of the three staircases on the span. BEWARE.

For those of you who have never crossed the Triboro by bike or foot, it can be very confusing. The DOT provides this map, but I get confused all the time, so here's a simple explanation.

triboro path

There is no direct route for cyclists and pedestrians from Queens to Manhattan or the Bronx. Instead of following the traffic, the path drops you on Randall's Island from all directions.
You need to cross the island and find the correct span for the borough you are going to, making the bridge a two-step process.

I haven't actually taken the Manhattan entrance this year, so I can't vouch for it, but if the ramps are open, they're at 124/126th and Second Avenue. If not, the stairs are at 124/126th and First Avenue.
Alternately, there's the Ward's Island Bridge at 103rd Street and the FDR, which is for bicyclists and pedestrians only. Ward's Island connects to Randall's Island.

The Queens entrance is the stairs at 27th and Hoyt.

The Bronx entrance is the ramp structure at 133rd and Cypress.

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Here's a question that I never thought I'd ask, but in the context of this blog is sort of important. Is this one bridge or five?

Construction started: October 25, 1929
Opened to traffic: July 11, 1936
Total length of approaches (Manhattan-Queens-Bronx): 13,820 feet
Cost of original structure: $60,300,000

EAST RIVER SUSPENSION BRIDGE

Length of main span: 1,380 feet
Length of each side span: 700 feet
Length, anchorage to anchorage: 2,780 feet
Height of towers above mean high water: 315 feet
Clearance at center above mean high water: 143 feet

HARLEM RIVER LIFT BRIDGE

Length of main lift-truss span: 310 feet
Length of each side truss span: 230 feet
Length, anchorage to anchorage: 770 feet
Height of towers: 210 feet
Clearance of lift span above mean high water: 55 feet
Clearance of lift span in raised position: 135 feet

BRONX KILLS CROSSING

Length of main truss span: 383 feet
Length of approach truss span: 1,217 feet
Length, anchorage to anchorage: 1,600 feet
Clearance of truss span above mean high water: 55 feet

WARD'S ISLAND VIADUCT

Structural steel used: 29,500 tons
Reinforcing steel used: 5,500 tons

RANDALL'S ISLAND INTERCHANGE

Reinforcing steel used: 9,500 tons
Concrete used in roadway and piers: 111,200 cubic yards

Bridge Statistics from nycroads.com


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