Editing Brooklyn Bridge (section)

=== Cables ===
[[File:USA-NYC-Brooklyn Bridge3.jpg|thumb|left|View of diagonal stays and vertical suspender cables; the main cables are at top|alt=A view of diagonal stays and vertical suspender cables from below. The main cables run at the top.]]
The Brooklyn Bridge contains four main cables, which descend from the tops of the suspension towers and help support the deck. Two are located to the outside of the bridge's roadways, while two are in the median of the roadways.<ref name="McCullough pp. 29-31" /> Each main cable measures {{Convert|15.75|in|cm|abbr=}} in diameter and contains 5,282 parallel, [[Galvanization|galvanized]] steel wires wrapped closely together in a cylindrical shape.<ref name="Barnes p. 28" /><ref name="McCullough pp. 350-351">{{harvnb|ps=.|McCullough|1972|pp=350–351}}</ref><ref name="sun18910611">{{cite news|url=https://www.newspapers.com/clip/33325930/|title=About the Brooklyn Bridge|date=June 11, 1891|work=[[The New York Sun]]|access-date=June 26, 2019|page=6|via=newspapers.com|archive-date=January 25, 2024|archive-url=https://web.archive.org/web/20240125003042/https://www.newspapers.com/article/the-sun-about-the-brooklyn-bridge/33325930/|url-status=live}}</ref> These wires are bundled in 19 individual strands, with 278 wires to a strand.<ref name="McCullough pp. 350-351" /> This was the first use of bundling in a suspension bridge and took several months for workers to tie together.<ref name="nyt19291229">{{Cite news|url=https://www.nytimes.com/1929/12/29/archives/a-builder-of-new-york-and-his-bridge-washington-a-roebling-who.html|title=A Builder Of New York And His Bridge; Washington A. Roebling, Who Erected the Brooklyn Span, Risked and Lost His Health in the Great Enterprise|last=Brown Brothers|date=December 29, 1929|work=The New York Times|language=en-US|issn=0362-4331|access-date=July 1, 2019|archive-date=January 25, 2024|archive-url=https://web.archive.org/web/20240125003123/https://www.nytimes.com/1929/12/29/archives/a-builder-of-new-york-and-his-bridge-washington-a-roebling-who.html|url-status=live}}</ref> Since the 2000s, the main cables have also supported a series of 24-[[watt]] [[LED]] lighting fixtures, referred to as "necklace lights" due to their shape.<ref>{{Cite news|url=https://www.nytimes.com/2007/12/30/nyregion/thecity/30disp.html|title=His View From the Bridge|last=Mooney|first=Jake|date=December 30, 2007|work=The New York Times|language=en-US|issn=0362-4331|access-date=July 8, 2019|archive-date=July 8, 2019|archive-url=https://web.archive.org/web/20190708141340/https://www.nytimes.com/2007/12/30/nyregion/thecity/30disp.html|url-status=live}}</ref>

In addition, either 1,088,<ref name="nyt19860308" /> 1,096,<ref name="n152878759">{{Cite news |date=November 18, 1986 |title=Wire rope for bridge to be shipped |url=https://www.newspapers.com/article/daily-news-wire-rope-for-bridge-to-be-sh/152878759/ |access-date=August 8, 2024 |work=New York Daily News |pages=120 |via=newspapers.com}}</ref> or 1,520 galvanized steel wire suspender cables hang downward from the main cables.<ref name="Talbot p. 4" /> Another 400 cable [[wikt:stay#Etymology 3|stays]] extend diagonally from the towers. The vertical suspender cables and diagonal cable stays hold up the truss structure around the bridge deck.<ref name="Talbot p. 4" /><ref name="nyt19860308" /><ref name="n152878759" /> The bridge's suspenders originally used wire rope, which was replaced in the 1980s with galvanized steel made by [[Bethlehem Steel]].<ref name="Talbot p. 4" /><ref name="Morning Call m830">{{cite web |date=February 24, 1986 |title=Brooklyn Bridge Cables to Get Relief From Steel Briefly |url=https://www.mcall.com/1986/02/24/brooklyn-bridge-cables-to-get-relief-from-steel-briefly/ |access-date=August 8, 2024 |website=The Morning Call}}</ref> The vertical suspender cables measure {{convert|8|to|130|ft}} long, and the diagonal stays measure {{convert|138|to|449|ft}} long.<ref name="n152878759" />

==== Anchorages ====
Each side of the bridge contains an anchorage for the main cables. The anchorages are [[trapezoid]]al limestone structures located slightly inland of the shore, measuring {{convert|129|by|119|ft|m|abbr=}} at the base and {{convert|117|by|104|ft|m|abbr=}} at the top.<ref name="NRHI Nomination Form p. 2" /><ref name="Barnes p. 28" /> Each anchorage weighs {{Convert|60,000|ST|LT MT|abbr=}}.<ref name="NRHI Nomination Form p. 2" /> The Manhattan anchorage rests on a foundation of bedrock while the Brooklyn anchorage rests on clay.<ref name="sun18910611" />

The anchorages both have four [[anchor plate]]s, one for each of the main cables, which are located near ground level and parallel to the ground. The anchor plates measure {{Convert|16|by|17.5|ft|m|abbr=}}, with a thickness of {{Convert|2.5|ft|m||abbr=}} and weigh {{Convert|46000|lb|kg|abbr=}} each. Each anchor plate is connected to the respective main cable by two sets of nine [[eyebar]]s, each of which is about {{Convert|12.5|ft|m|abbr=}} long and up to {{convert|9|by|3|in|mm|abbr=}} thick.<ref>{{harvnb|ps=.|McCullough|1972|p=308}}</ref><ref name="NRHI Nomination Form p. 5">{{harvnb|ps=.|National Park Service|1966|p=5}}</ref> The chains of eyebars curve downward from the cables toward the anchor plates, and the eyebars vary in size depending on their position.{{efn|The largest eyebars, which carry more stress, are located furthest away from the anchor plates. The eyebars closer to the anchor plates are progressively smaller.<ref name="McCullough pp. 330-331" />}}<ref name="McCullough pp. 330-331" />

The anchorages also contain numerous passageways and compartments.<ref name="nyt19990110">{{Cite news|url=https://www.nytimes.com/1999/01/10/nyregion/fyi-780359.html|title=F.y.i.|last=Schneider|first=Daniel B|date=January 10, 1999|work=The New York Times|language=en-US|issn=0362-4331|access-date=July 2, 2019|archive-date=July 2, 2019|archive-url=https://web.archive.org/web/20190702151459/https://www.nytimes.com/1999/01/10/nyregion/fyi-780359.html|url-status=live}}</ref> Starting in 1876,<ref name="npr20170130">{{Cite news|url=https://www.npr.org/sections/thesalt/2017/01/30/511204977/a-sip-of-history-the-hidden-wine-cellars-under-the-brooklyn-bridge|title=A Sip Of History: The Hidden Wine Cellars Under The Brooklyn Bridge|website=[[NPR.org]]|date=January 30, 2017|language=en|access-date=July 2, 2019|last1=Jankowski|first1=Nicole|archive-date=July 2, 2019|archive-url=https://web.archive.org/web/20190702145912/https://www.npr.org/sections/thesalt/2017/01/30/511204977/a-sip-of-history-the-hidden-wine-cellars-under-the-brooklyn-bridge|url-status=live}}</ref> in order to fund the bridge's maintenance, the New York City government made the large vaults under the bridge's Manhattan anchorage available for rent, and they were in constant use during the early 20th century.<ref name="nyt19990110" /><ref name="nyt19760922">{{Cite news|url=https://www.nytimes.com/1976/09/22/archives/the-other-brooklyn-bridge-spacious-offices-and-labyrinthine-caves.html|title=The 'Other' Brooklyn Bridge: Spacious Offices and Labyrinthine Caves|last=Chambers|first=Marcia|date=September 22, 1976|work=The New York Times|language=en-US|issn=0362-4331|access-date=July 2, 2019|archive-date=July 2, 2019|archive-url=https://web.archive.org/web/20190702165452/https://www.nytimes.com/1976/09/22/archives/the-other-brooklyn-bridge-spacious-offices-and-labyrinthine-caves.html|url-status=live}}</ref> The vaults were used to store wine, as they were kept at a consistent {{convert|60|F|C}} temperature due to a lack of air circulation.<ref name="nyt19990110" /> The Manhattan vault was called the '''"Blue Grotto"''' because of a shrine to the [[Virgin Mary]] next to an opening at the entrance.<ref name="nyt19760922" /> The vaults were closed for public use in the late 1910s and 1920s during [[World War I]] and [[Prohibition in the United States|Prohibition]] but were reopened thereafter.<ref name="npr20170130" /><ref name="nyt19760922" /> When ''[[New York (magazine)|New York]]'' magazine visited one of the cellars in 1978, it discovered a "fading inscription" on a wall reading: "Who loveth not wine, women and song, he remaineth a fool his whole life long."<ref>{{cite web|url=https://books.google.com/books?id=7-ACAAAAMBAJ&pg=PA88|title=Notes from the Underground|work=[[New York (magazine)|New York]]|page=88|language=en|access-date=July 2, 2019|date=July 10, 1978|archive-date=January 25, 2024|archive-url=https://web.archive.org/web/20240125003124/https://books.google.com/books?id=7-ACAAAAMBAJ&pg=PA88#v=onepage&q&f=false|url-status=live}}</ref><ref name="npr20170130" /> Leaks found within the vault's spaces necessitated repairs during the late 1980s and early 1990s.<ref>{{Cite news|url=https://www.nytimes.com/1990/02/28/business/real-estate-bridge-vault-development-is-stalled.html|title=Real Estate; Bridge-Vault Development Is Stalled|last=Lyons|first=Richard D|date=February 28, 1990|work=The New York Times|language=en-US|issn=0362-4331|access-date=July 8, 2019|archive-date=January 25, 2024|archive-url=https://web.archive.org/web/20240125003041/https://www.nytimes.com/1990/02/28/business/real-estate-bridge-vault-development-is-stalled.html|url-status=live}}</ref> By the late 1990s, the chambers were being used to store maintenance equipment.<ref name="nyt19990110" />