Knowledge (XXG)

Miles Glacier Bridge

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a severe September 1995 flood caused the bridge to be impassable and also made an eventual washout of debris onto Childs Glacier inevitable. State engineers determined that it was less expensive to repair the bridge than it would be to remove it, or (in a worst-case scenario) clean up if the bridge completely collapsed into the river. Such a cleanup would have been required due to the
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Temporary repairs, consisting of a rudimentary system of cables, I-beams, and planks, kept the bridge passable after the 1964 earthquake. The bridge was permanently repaired starting in 2004, and the repaired bridge was dedicated in August 2005. The controversial decision was made to repair it after
1051: 531:. The track reached the bridge site in Oct. 1908. Actual bridge construction started on 5 April 1909 with span #1 completed in 10.5 days, span #2 in 6 days, span #3 in 10 days and span #4 was completed a month later. The bridge was in full service by July 1910. 1447: 519:
from the Miles Glacier meant the bridge needed to withstand icebergs, up to 20 feet in height, moving with the 7.2 miles per hour current. Additionally, the river ranged 24 feet in height. The bed of the river was loose sand and gravel to a depth of 20 feet.
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This Bridge once served the Copper River and Northwestern Railroad trains, and was converted to a Highway Bridge in 1958. The Bridge crosses the Copper River between two scenic and active glaciers. The Childs Glacier to the west and the
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In August 2016, a large iceberg struck the icebreaker protecting the bridge’s first pier. The damaged icebreaker was moved downstream during a high water event in 2019, and offers no protection to the first pier.
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The site was selected in 1907 and the bridge would have four spans, #1 at 400 feet, #2 at 300 feet, #3 at 450 feet and #4 at 400 feet, mounted on three piers. The piers would be placed on
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to the east. Known as the Million Dollar Bridge, and constructed during severe winter conditions. It was considered one of the great engineering feats of all time.
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out of the way of most ice. Piers #1 and #2 required detached icebreakers. Excavation of the piers and icebreakers was accomplished through the use of
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Copper River & Northwest Railroad, Million Dollar Bridge, Spanning Copper River at Miles Glacier, Cordova, Valdez-Cordova Census Area, AK
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Work to convert the old rail bed into a highway bridge was completed in 1958. In the same year, a plaque was placed on the bridge:
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Current access to the bridge is limited to jet boat travel up the Copper River or boat travel downriver from
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The bridge at Mile 49 needed to span 1,500 feet of the Copper River between two glaciers on either bank.
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Miles Glacier Bridge in 2008. The far left span as seen in this photo shows the repairs performed in 2004.
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salmon runs. The repairs cost $ 16 million in federal and $ 3 million in state tax dollars.
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Buildings and structures on the National Register of Historic Places in Chugach Census Area, Alaska
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There are no sites listed on the National Register of Historic Places in Kusilvak Census Area.
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Damage done by the earthquake, with the temporary fixes performed to make the bridge usable
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because of its $ 1.4 million cost, well recouped by the about $ 200 million worth of
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University and college buildings listed on the National Register of Historic Places
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List of bridges documented by the Historic American Engineering Record in Alaska
516: 16:"Million Dollar Bridge" redirects here. For the bridge in Portland, Maine, see 600: 411: 299: 286: 70: 57: 568:
National Register of Historic Places listings in Chugach Census Area, Alaska
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Railroad bridges on the National Register of Historic Places in Alaska
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List of jails and prisons on the National Register of Historic Places
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List of bridges on the National Register of Historic Places in Alaska
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Katalla Corporation; Carnegie Steel Company; American Bridge Company
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Road bridges on the National Register of Historic Places in Alaska
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which completed a 196-mile (315 km) railroad line for the
622:"Copper River & Northwest Railroad, Million Dollar Bridge" 761:"Million Dollar Bridge on pace to be repaired by spring 2005" 739:"National Register of Historic Places Listings April 7, 2000" 813:
A panoramic image of the bridge, probably taken in the 1920s
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and associated bridges were built between 1906 and 1911 by
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ore which was shipped as a result of its construction.
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1911 newspaper article about the Kenicott-Cordova line
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History of the National Register of Historic Places
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Washington, D.C.: Library of Congress 579: 1604:Bridges in Unorganized Borough, Alaska 653:"National Register Information System" 615: 613: 611: 609: 620:Faulkner, Sandra M. (July 23, 1986). 474:Copper River and Northwestern Railway 427:Copper River and Northwestern Railway 343:A.C. O'Neel; Erastus Corning Hawkins; 7: 863:National Register of Historic Places 818:Historic American Engineering Record 658:National Register of Historic Places 630:Historic American Engineering Record 505:National Register of Historic Places 1639:Steel bridges in the United States 1526:National Historic Preservation Act 14: 703:"Million Dollar Bridge in danger" 127:Pennsylvania (Petit) truss bridge 1568: 1567: 1556: 891: 875: 785: 249: 242: 216:Alaska Heritage Resources Survey 36: 1479:Federated States of Micronesia 1125:Architectural style categories 362: 349: 155: 1: 1594:1911 establishments in Alaska 503:The bridge was placed on the 460:due to the erosion along the 18:Million Dollar Bridge (Maine) 689:Iron Rails to Alaskan Copper 1655: 1531:Historic Preservation Fund 1510:American Legation, Morocco 15: 1599:Bridges completed in 1911 1551: 1472:Lists by associated state 1070: 1007: 998: 900: 889: 882: 873: 687:Alfredo O. Quinn (1995). 441:, now located within the 388: 379: 348:NRHP reference  237: 225: 221: 214: 205: 198: 194: 35: 23:Bridge in Cordova, Alaska 1453:Northern Mariana Islands 820:(HAER) No. AK-10, " 759:Gay, Joel (2004-01-05). 741:. Cr.nps.gov. 2000-04-07 418:. It is a multiple-span 719:. 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Morgan 404:Copper River 399: 395: 393: 147:Total length 101:Copper River 1498:Other areas 1458:Puerto Rico 1292:Mississippi 1207:Connecticut 965:North Slope 915:Bristol Bay 517:Ice calving 429:, built by 303: / 291:144°44′45″W 279:Coordinates 267:Mile 48 of 91:road bridge 74: / 62:144°44′45″W 49:Coordinates 1588:Categories 1407:Washington 1327:New Mexico 1322:New Jersey 1197:California 1047:Petersburg 1032:Dillingham 859:Properties 745:2011-08-28 637:January 8, 601:Structurae 574:References 412:U.S. state 361:AHRS  288:60°40′23″N 59:60°40′22″N 1417:Wisconsin 1382:Tennessee 1287:Minnesota 1262:Louisiana 910:Anchorage 507:in 2000. 439:Kennicott 367:COR-00005 340:Architect 1573:Category 1402:Virginia 1352:Oklahoma 1332:New York 1307:Nebraska 1297:Missouri 1282:Michigan 1272:Maryland 1257:Kentucky 1237:Illinois 1212:Delaware 1202:Colorado 1192:Arkansas 985:Wrangell 885:Boroughs 723:June 12, 552:See also 529:caissons 511:Features 447:nickname 433:and the 384:Location 355:00000293 332:Built by 264:Location 158:of spans 141:concrete 133:Material 125:through 1519:Related 1422:Wyoming 1397:Vermont 1302:Montana 1242:Indiana 1222:Georgia 1217:Florida 1187:Arizona 1177:Alabama 1022:Chugach 990:Yakutat 980:Skagway 861:on the 535:Repairs 468:History 458:Chitina 408:Cordova 273:Cordova 174:History 97:Crosses 87:Carries 1357:Oregon 1312:Nevada 1252:Kansas 1227:Hawaii 1182:Alaska 1118:Topics 1017:Bethel 935:Juneau 930:Haines 920:Denali 867:Alaska 451:copper 423:bridge 416:Alaska 122:Design 107:Locale 1489:Palau 1387:Texas 1267:Maine 1232:Idaho 975:Sitka 625:(PDF) 324:Built 190:1910 137:Steel 1443:Guam 1392:Utah 1347:Ohio 1247:Iowa 1042:Nome 725:2017 639:2022 525:bars 472:The 394:The 327:1910 316:Area 182:1909 139:and 865:in 598:at 414:of 363:No. 350:No. 156:No. 1590:: 763:. 671:^ 661:. 655:. 627:. 608:^ 582:^ 1173:: 1103:e 1096:t 1089:v 851:e 844:t 837:v 748:. 727:. 641:. 169:3 161:4 20:.

Index

Million Dollar Bridge (Maine)

Coordinates
60°40′22″N 144°44′45″W / 60.6729°N 144.7458°W / 60.6729; -144.7458
road bridge
Copper River
Cordova, Alaska
Pennsylvania (Petit) truss bridge
Steel
concrete
U.S. National Register of Historic Places

Miles Glacier Bridge is located in Alaska
Copper River Highway
Cordova
60°40′23″N 144°44′45″W / 60.6731°N 144.74583°W / 60.6731; -144.74583
00000293
Copper River
Cordova
U.S. state
Alaska
Pennsylvania truss
bridge
Copper River and Northwestern Railway
J. P. Morgan
Guggenheim family
Kennicott
Wrangell–St. Elias National Park and Preserve
nickname
copper

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