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by the Walsh
Construction Company and S.J. Groves and Sons (collectively known as Walsh–Groves) at a cost of nearly $ 44 million (equivalent to $ 316 million in 2023). It is part of a 60-mile (97 km) rerouting of the Great Northern
328:
Finishing work continued for the following two years, and the tunnel, along with the entire rerouted rail line it is a part of, opened on
November 1, 1970. An opening ceremony was held on November 7, 1970 and included the passage of the first
361:. Maximum speed through the tunnel is 50 miles per hour (80 km/h). The north portal contains a ventilation system to clear the tunnel of diesel locomotive exhaust and provide cooling air to eastbound locomotives, as there is an uphill
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Official records indicate that two people were killed in two separate incidents during construction, both occurring after drilling was complete.
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389:"The Flathead Tunnel: A Geologic, Operations, and Ground Support Study, Burlington Northern Railroad, Salish Mountains, Montana"
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special carrying 1,200 area residents who were offered the opportunity to travel a circular route from
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ceremoniously triggered a final explosion from a circuit connected via telephone to the
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Work began on May 12, 1966. Drilling was completed on June 21, 1968 when
President
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282:'s Kootenai River Subdivision, it is the second-longest railroad tunnel in the
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422:"BNSF to Improve Flathead Tunnel as Part of Annual Capital Program"
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401:. Spokane Mining Research Center. U.S. Bureau of Mines. 1974
520:"Stories from Trego tunnel deviate from historical record"
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585:. Kalispell, Montana: Daily Inter Lake. Archived from
522:. Kalispell, Montana: Daily Inter Lake. Archived from
455:. Kalispell, Montana: Daily Inter Lake. Archived from
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Buildings and structures in
Lincoln County, Montana
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567:. Kalispell, Montana. November 13, 1970. p. 4.
549:. Kalmbach Publications. February 1971. p. 12.
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636:. Kalispell, Montana. October 1, 1970. p. 1.
480:"Dam gets Ford's praise, but it's not energy key"
1404:This United States tunnel–related article is a
453:"Trego railroad tunnel major construction feat"
306:that became a necessity due to construction of
274:, approximately 28 miles (45 km) west of
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1351:This United States rail–related article is a
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341:and back on both the new and old rail lines.
8:
504:. Havre, Montana. June 24, 1968. p. 11.
19:
1547:Western United States transportation stubs
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347:As of 2022 the tunnel is used by about 40
180:36,955 ft (7.0 mi; 11.3 km)
25:
18:
583:"'Tunnel rats' and an engineering marvel"
1537:United States rail transportation stubs
608:Kelly, Bruce. "FLATHEAD TUNNEL AT 50".
383:
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258:is a 7-mile-long (11 km) railroad
1522:Great Northern Railway (U.S.) tunnels
1457:This article about transportation in
16:Rail tunnel in Montana, United States
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333:train through the tunnel, a 21-car
297:The tunnel was constructed for the
290:. It is ultimately named after the
1465:. You can help Knowledge (XXG) by
1408:. You can help Knowledge (XXG) by
1355:. You can help Knowledge (XXG) by
581:Weber, Jeremy (January 16, 2022).
451:Weber, Jeremy (January 16, 2022).
420:Franz, Justin (13 February 2018).
14:
650:RR Pictures Archive - east portal
1449:
1396:
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886:Regional designations of Montana
478:Floyd, Doug (August 25, 1975).
518:Weber, Jeremy (May 22, 2022).
486:. (Washington). pp. 1, 3.
294:, also known as the Flathead.
185:
1:
630:"Tunnel Test Functions Well"
248:3,620 ft (1,100 m)
240:3,720 ft (1,130 m)
167:40 trains daily (as of 2022)
51:Kootenai River Subdivision (
1512:Railroad tunnels in Montana
310:and subsequent creation of
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614:. No. February 2021.
498:"President Presses Button"
97:48.5508192°N 114.9561739°W
1532:Tunnels completed in 1970
1315:
728:Congressional delegations
696:
397:University of North Texas
24:
545:"Railroad News Photos".
102:48.5508192; -114.9561739
484:Spokane Daily Chronicle
299:Great Northern Railway
37:enters Flathead Tunnel
1542:American tunnel stubs
881:Glacier National Park
1527:BNSF Railway tunnels
561:"Fine Train Program"
351:each day as well as
792:Tourist attractions
780:The Last Best Place
365:heading eastbound.
93: /
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1326:Montana portal
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618:. pp. 30–33.
319:Lyndon B. Johnson
292:Bitterroot Salish
278:. Located on the
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1467:expanding it
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1357:expanding it
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1217:Powder River
1142:Judith Basin
876:The Flathead
828:Demographics
753:bibliography
698:
633:
624:
609:
603:
593:February 20,
591:. Retrieved
587:the original
564:
555:
546:
540:
530:February 20,
528:. Retrieved
524:the original
501:
492:
483:
473:
463:February 20,
461:. Retrieved
457:the original
429:. Retrieved
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403:. Retrieved
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280:BNSF Railway
255:
253:
159:BNSF Railway
131:May 12, 1966
68:Montana, USA
32:
1307:Yellowstone
1272:Sweet Grass
1192:Musselshell
954:Great Falls
896:Yellowstone
853:LGBT rights
323:White House
202:Track gauge
136:Constructed
100: /
88:114°57′22″W
75:Coordinates
1506:Categories
1267:Stillwater
1262:Silver Bow
1087:Deer Lodge
1047:Broadwater
1032:Beaverhead
994:Miles City
989:Livingston
738:Government
431:12 October
369:References
286:after the
128:Work begun
85:48°33′03″N
31:Eastbound
1297:Wheatland
1242:Roosevelt
1202:Petroleum
1137:Jefferson
1014:Whitefish
984:Lewistown
974:Kalispell
838:Education
743:Governors
733:Geography
703:(capital)
335:passenger
308:Libby Dam
276:Whitefish
172:Technical
123:Operation
1287:Treasure
1257:Sheridan
1237:Richland
1207:Phillips
1187:Missoula
1112:Garfield
1107:Gallatin
1102:Flathead
1067:Chouteau
1037:Big Horn
1024:Counties
999:Missoula
959:Hamilton
949:Glendive
924:Billings
919:Belgrade
914:Anaconda
848:Politics
843:Gun laws
813:Cannabis
808:Abortion
405:2 August
331:official
221: in
60:Location
43:Overview
1459:Montana
1252:Sanders
1247:Rosebud
1232:Ravalli
1227:Prairie
1212:Pondera
1182:Mineral
1177:Meagher
1167:Madison
1162:Lincoln
1157:Liberty
1127:Granite
1117:Glacier
1077:Daniels
1062:Cascade
929:Bozeman
863:Regions
833:Economy
823:Culture
801:Society
748:History
690:Montana
399:Library
304:Hi-Line
268:Montana
262:in the
216:⁄
164:Traffic
143:portals
1302:Wibaux
1292:Valley
1222:Powell
1172:McCone
1097:Fergus
1092:Fallon
1082:Dawson
1072:Custer
1057:Carter
1052:Carbon
1042:Blaine
1009:Sidney
1004:Polson
979:Laurel
969:Helena
944:Dillon
770:Sports
760:People
710:Topics
700:Helena
611:Trains
547:Trains
353:Amtrak
260:tunnel
195:Single
190:tracks
177:Length
148:Opened
113:System
1461:is a
1282:Toole
1277:Teton
964:Havre
934:Butte
818:Crime
718:Index
686:State
392:(PDF)
363:grade
339:Libby
272:Trego
270:near
156:Owner
1463:stub
1406:stub
1353:stub
1197:Park
1147:Lake
1132:Hill
595:2023
532:2023
465:2023
433:2018
407:2021
254:The
117:BNSF
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