| 词条 | Jackson Boulevard Bridge |
| 释义 |
| name = Jackson Boulevard Bridge | image = File:Chicago, June 2015 - 177.jpg | image_upright = | alt = View of bridge from sidewalk on southeast corner | caption = The bridge in 2015 | coordinates = {{Coord|41.87807|-87.63770|type:landmark}} | os_grid_reference = | carries = Pedestrians, bicycles, motor vehicles | crosses = South Branch of the Chicago River | locale = Chicago Loop | official_name = | other_name = | named_for = Andrew Jackson, after the street on which it resides[1] | owner = City of Chicago | maint = Chicago Department of Transportation | heritage = | id = 16602627329 | id_type = NBI number | website = | preceded = Adams Street Bridge | followed = Van Buren Street Bridge | design = Double-leaf bascule bridge | material = steel | material1 = | material2 = | length = {{convert|273|ft|m}} | width = {{convert|64|ft|m}} | height = | depth = | traversable = | towpath = | mainspan = {{convert|202|ft|m}} | number_spans = 1 main & 3 approach | piers_in_water = | load = | clearance_above = | clearance_below = {{convert|15.74|ft|m}} | lanes = 3 (one-way eastbound) | life = | architect = | designer = | contracted_designer = | winner = | engineering = Strauss Bascule Bridge Company | builder = {{ubl|Great Lakes Dredge and Dock Company (substructure)|Strobel Steel Construction Company (superstructure)}} | fabricator = | begin = | complete = 1915 | cost = $400,600[2] | open = 29 January 1916 | inaugurated = | rebuilt = 1993 | collapsed = | closed = | replaces = 1888 swing bridge | replaced_by = | traffic = {{ubl|6900 vehicles per day (2014)[3]|22,280 pedestrians per day (1999)[2]}} | map_type = United States Chicago Loop | map_dot_label = | map_size = | map_alt = Map of Chicago Loop showing location of bridge | map_caption = | references = historicbridges.org[5] }} The Jackson Boulevard Bridge is a Pratt deck truss, fixed-trunnion, bascule bridge that spans the Chicago River at Jackson Boulevard in downtown Chicago.[5] It was built in 1915 and is 273 feet in length.[5] References1. ^1 2 3 {{cite web|last1=Holth|first1=Nathan|title=Jackson Boulevard Bridge|url=http://historicbridges.org/bridges/browser/?bridgebrowser=illinois/jackson2/|website=historicbridges.org|accessdate=12 June 2015}} [1][2][3][4]2. ^1 {{cite web|title=Getting Around Illinois|url=https://www.gettingaroundillinois.com/gai.htm?mt=aadt|website=Illinois Department of Transportation|accessdate=20 April 2017}} 3. ^1 2 {{cite web|title=W. Jackson Boulevard|url=http://chicagoloopbridges.com/bridges12/SB12/JACK12-1.html|website=Chicago Loop Bridges|accessdate=20 April 2017}} 4. ^1 {{cite web|title=Chicago Street Names|url=https://chicagology.com/chicagostreets/streetnames/|website=Chicagology|accessdate=20 April 2017}} }} External links{{Portal|Bridges|Chicago}}
7 : 1915 establishments in Illinois|Bascule bridges in the United States|Bridges completed in 1915|Bridges in Chicago|Steel bridges in the United States|Pratt truss bridges in the United States|Road bridges in Illinois |
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