Editing Manhattan Bridge (section)

{{Short description|Suspension bridge in New York City}}
{{Use mdy dates|date=June 2024}}
{{Use American English|date=July 2022}}
{{Infobox bridge
| bridge_name = Manhattan Bridge
| image = Manhattan Bridge January 2023 003.jpg
| image_upright = 1.2
| caption = View from Manhattan towards Brooklyn, 2023
| official_name = 
| also_known_as = 
| carries = {{plainlist|
* 7 lanes of [[roadway]]
* 4 tracks of the {{NYCS trains|Manhattan Bridge | time=bullets }} of the [[New York City Subway]]
* Pedestrians and bicycles
* Streetcars <small>(until 1929)</small>
}}
| crosses = [[East River]]
| locale = [[New York City]] ([[Manhattan]]–[[Brooklyn]])
| maint = [[New York City Department of Transportation]]
| id = 2240028 (upper)<br />2240027 (lower)<ref>{{cite web |url=https://www.nyc.gov/html/dot/downloads/pdf/dot_bridgereport15.pdf |title=NYC DOT Bridges & Tunnels Annual Condition Report 2015 |website=City of New York}}</ref>
| design = [[Suspension bridge]]
| mainspan = {{convert|1480|ft|m|0}}<ref name=jackson/>
| length = {{convert|6855|ft|m|0|abbr=on}}
| width = {{convert|120|ft}}<ref name=structurae>{{Structurae|id=20000529|title=Manhattan Bridge}}</ref>
| designer = [[Leon Moisseiff]]<ref name=structurae />
| material = 
| height = {{convert|336|ft|m|0|abbr=on}} (towers)<ref name=structurae />
| load = 
| clearance = 
| below = {{convert|135|ft|m|1|abbr=on}}<ref name=structurae />
| builder = Othniel Foster Nichols<ref name=structurae />
| begin = 1901<ref name=structurae />
| complete = 1909<ref name="NYTimes-Open-1910">{{Cite news |date=January 1, 1910 |title=Manhattan Bridge Opened to Traffic – Mayor McClellan's Last Act in Public Was to Lead a Procession on Wheels Across – Brooklyn Men Celebrate – New Structure Has the Largest Carrying Capacity of Any Crossing the River – The Span Is 1,470 Feet |work=The New York Times |issn=0362-4331 |url-access=registration |url=https://timesmachine.nytimes.com/timesmachine/1910/01/01/104915453.pdf |access-date=December 24, 2017}}</ref>
| open = {{start date and age|1909|12|31}}<ref name=NYTimes-Open-1910/>
| toll = [[Congestion pricing in New York City|Variable congestion charge]] (Manhattan-bound)
| traffic = 67,851 (2019)<ref>{{cite web |url=https://www1.nyc.gov/html/dot/html/about/datafeeds.shtml#trafficcounts |title=NYC DOT – Data Feeds |at=NYC Bridge & Screenline Traffic Volumes Dashboard |date=2019 |publisher=New York City Department of Transportation |access-date=May 21, 2022}}</ref>
| coordinates = {{Coord|40.7070|-73.9905|region:US-NY_type:landmark|display=inline,title|name=Manhattan Bridge}}
| embedded = {{Infobox historic site
| embed=yes
| designation1            = NRHP
| designation1_date       = August 30, 1983<ref name="nris">{{NRISref|version=2013a}}</ref>
| designation1_number     = 83001694
| designation1_free1name  = Designated entity
| designation1_free1value = Manhattan Bridge
| designation2            = NYSRHP
| designation2_date       = July 6, 1983<ref name="Cultural Resource Information System">{{cite web |title=Cultural Resource Information System (CRIS) |publisher=[[New York State Office of Parks, Recreation and Historic Preservation]] |date=November 7, 2014 |url=https://cris.parks.ny.gov/ |access-date=July 20, 2023}}</ref>
| designation2_number     = 04701.000010
| designation3            = NYCL
| designation3_date       = November 25, 1975
| designation3_number     = 0899
| designation3_free1name  = Designated entity
| designation3_free1value = Manhattan Bridge Arch and Colonnade
}}
}}

The '''Manhattan Bridge''' is a [[suspension bridge]] that crosses the [[East River]] in [[New York City]], connecting [[Lower Manhattan]] at [[Canal Street (Manhattan)|Canal Street]] with [[Downtown Brooklyn]] at the [[Flatbush Avenue Extension]].  Designed by [[Leon Moisseiff]], the bridge has a total length of {{convert|6855|ft|m|0|abbr=on}}. The bridge is one of four vehicular bridges directly connecting Manhattan Island and [[Long Island]]; the nearby [[Brooklyn Bridge]] is just slightly farther west, while the [[Queensboro Bridge|Queensboro]] and [[Williamsburg Bridge|Williamsburg]] bridges are to the north.<ref>{{cite web | last=Sharif | first=Mo | title=Protecting New York City's Bridge Assets | website=Federal Highway Administration | date=December 19, 1903 | url=https://highways.dot.gov/public-roads/mayjune-2005/protecting-new-york-citys-bridge-assets | access-date=January 8, 2025}}</ref>

The bridge was proposed in 1898 and was originally called "Bridge No. 3" before being renamed the Manhattan Bridge in 1902. Foundations for the bridge's suspension towers were completed in 1904, followed by the anchorages in 1907 and the towers in 1908. The Manhattan Bridge opened to traffic on December 31, 1909, and began carrying streetcars in 1912 and [[New York City Subway]] trains in 1915. The eastern upper-deck roadway was installed in 1922. After streetcars stopped running in 1929, the western upper roadway was finished two years later. The uneven weight of subway trains crossing the Manhattan Bridge caused it to tilt to one side, necessitating an extensive reconstruction between 1982 and 2004.

The Manhattan Bridge was the first suspension bridge to use a [[Warren truss]] in its design. It has a main span of {{convert|1480|ft|m|0|abbr=on}} between two {{Convert|350|ft|adj=on}} suspension towers. The deck carries seven vehicular lanes, four on an upper level and three on a lower level, as well as four subway tracks, two each flanking the lower-level roadway. The span is carried by four main cables, which travel between masonry anchorages at either side of the bridge, and 1,400 vertical suspender cables. [[Carrère and Hastings]] designed ornamental plazas at both ends of the bridge, including an arch and colonnade in Manhattan that is a [[New York City designated landmark]]. The bridge's use of light trusses influenced the design of other long suspension bridges in the early 20th century.