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and put up by contractor
Lawrence Construction Company in 1933. The structure had length 134 feet (41 m) with main span length of 100 ft (30 m). Its superstructure was steel, rigid-connected camelback pony truss and its substructure included concrete abutments, wingwalls and piers.
131:
The bridges were deemed significant for representing transportation and for their preserved structure. Bridges I and II were removed from the
National Register on November 29, 2010. Delistings from the NRHP usually occur when a listed building or other structure is demolished or if its historic
515:
It has been termed a "lost bridge" because the original structure was mostly replaced, as documented in a 2005 photo which showed trusses still in place, but the span supported by a concrete pillar construction which would not have been part of the original bridge.
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integrity is otherwise severely compromised. Bridges III and IV have been substantially renovated in place so far that their camelback truss structures are entirely gone, but they currently remain on the
Register.
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and fabricated by
Midwest Steel & Iron Works. Bridges III and IV were put together by Lawrence Construction Company in 1933, and bridges I and II were put together by contractor M.E. Carlson four years later.
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A modern bridge is now located at the site; the truss structure is entirely gone as documented in 2012 photo. Though historic integrity is apparently gone, the bridge remains listed on the
National Register.
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The bridge was deemed worthy of historic designation largely for its engineering; like the others, it was a rigid-connected
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The four bridges were identified as conforming to terms defined for historic bridge notability as defined in a 2000 study.
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It has been substantially replaced by a non-truss bridge, though the
National Register listing has not yet been revoked.
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39:, but since have lost most of their historic integrity. They were built in 1933 and 1937. All four were listed on the
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built of steel, and the four bridges represented the state's only surviving cluster of such bridges.
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It had a concrete deck with asphalt overlay. The site was modified c.1980 by addition of flex-beam
673:"National Register of Historic Places Multiple Property Documentation: Highway Bridges in Colorado"
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As of 2012, the pony truss structure is entirely gone, as documented in its 2012 photo.
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The bridge, near Estes Park, had pedestrian sidewalks cantilevered from the outside.
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University and college buildings listed on the
National Register of Historic Places
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654:"National Register of Historic Places Registration: Big Thompson River Bridge III"
764:"National Register of Historic Places Registration: Big Thompson River Bridge IV"
762:
Office of
Archaeology and Historic Preservation, and Clay Fraser (May 21, 2002).
750:
734:"National Register of Historic Places Registration: Big Thompson River Bridge II"
732:
Office of
Archaeology and Historic Preservation, and Clay Fraser (May 21, 2002).
713:
Office of
Archaeology and Historic Preservation, and Clay Fraser (May 21, 2002).
652:
Office of Archaeology and Historic Preservation, and Clay Fraser (May 21, 2002).
364:
September 2012 photo of modern replacement bridge III lacking the truss structure
715:"National Register of Historic Places Registration: Big Thompson River Bridge I"
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bridge that was designed by the Colorado Department of Highways, fabricated by
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1236:
List of jails and prisons on the National Register of Historic Places
103:
Big Thompson River Bridge II, US 34 at milepost 66.22, Estes Park, CO
1292:
Road bridges on the National Register of Historic Places in Colorado
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Transportation buildings and structures in Larimer County, Colorado
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Big Thompson River Bridge IV, US 34 at milepost 86.04, Loveland, CO
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94:
689:
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This bridge was structurally the same as its predecessor bridge.
1302:
National Register of Historic Places in Larimer County, Colorado
781:
403:
US 34 at milepost 85.15 (III), US 34 at milepost 86.04 (IV),
570:
Bridge at site in 2012, with truss structure entirely gone
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Big Thompson River Bridge III, US 34 at milepost 85.15,
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838:
History of the National Register of Historic Places
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869:List of U.S. National Historic Landmarks by state
1261:National Register of Historic Places portal
486:is a historic bridge built in 1933. It was a
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809:U.S. National Register of Historic Places
389:U.S. National Register of Historic Places
165:U.S. National Register of Historic Places
43:in 2002, and two were delisted in 2010.
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690:"National Register Information System"
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7:
695:National Register of Historic Places
671:Clayton B. Fraser (March 30, 2000).
41:National Register of Historic Places
740:accompanying three photos from 1999
1307:Steel bridges in the United States
1224:National Historic Preservation Act
123:bridges that were designed by the
25:
770:accompanying two photos from 1999
721:accompanying two photos from 1999
660:accompanying two photos from 1999
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751:bridgehunter pic and description
585:bridge that was built in 1933.
450:Highway Bridges in Colorado MPS
225:Highway Bridges in Colorado MPS
125:Colorado Department of Highways
1177:Federated States of Micronesia
823:Architectural style categories
495:Midwest Steel & Iron Works
482:on US 34 at milepost 85.15 in
456:
231:
1:
550:Big Thompson River Bridge III
480:Big Thompson River Bridge III
379:Big Thompson River Bridge III
93:Big Thompson River Bridge I,
27:Four historic bridges on the
620:Big Thompson River Bridge IV
576:Big Thompson River Bridge IV
414:less than one acre (III, IV)
381:Big Thompson River Bridge IV
368:United States historic place
344:Big Thompson River Bridge II
163:Formerly listed on the
156:Big Thompson River Bridge II
143:United States historic place
18:Big Thompson River Bridge IV
507:camelback pony truss bridge
424:; 91 years ago
297:Big Thompson River Bridge I
199:; 87 years ago
154:Big Thompson River Bridge I
82:GPX (secondary coordinates)
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1229:Historic Preservation Fund
1208:American Legation, Morocco
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1170:Lists by associated state
455:NRHP reference
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230:NRHP reference
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77:GPX (primary coordinates)
52:Map all coordinates using
1151:Northern Mariana Islands
766:. National Park Service.
736:. National Park Service.
717:. National Park Service.
656:. National Park Service.
437:Architectural style
212:Architectural style
60:Download coordinates as:
33:Larimer County, Colorado
1146:Minor Outlying Islands
1129:Lists by insular areas
843:Keeper of the Register
609:40.41861°N 105.17972°W
571:
539:40.41500°N 105.19500°W
365:
333:40.38944°N 105.46361°W
286:40.38028°N 105.47194°W
848:National Park Service
828:Contributing property
700:National Park Service
569:
363:
72:GPX (all coordinates)
1203:District of Columbia
614:40.41861; -105.17972
544:40.41500; -105.19500
440:Camelback pony truss
338:40.38944; -105.46361
291:40.38028; -105.47194
215:Camelback pony truss
180:Estes Park, Colorado
604: /
534: /
328: /
281: /
97:at milepost 65.53,
572:
484:Loveland, Colorado
405:Loveland, Colorado
366:
189:less than one acre
46:The four bridges:
29:Big Thompson River
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833:Historic district
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260:November 29, 2010
257:Removed from NRHP
244:Significant dates
16:(Redirected from
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55:OpenStreetMap
53:
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37:flood of 1976
35:survived its
34:
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1075:South Dakota
1065:Rhode Island
1060:Pennsylvania
1040:North Dakota
757:
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176:Nearest city
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108:Loveland, CO
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1196:Other areas
1156:Puerto Rico
990:Mississippi
905:Connecticut
612: /
599:105°10′47″W
542: /
529:105°11′42″W
336: /
323:105°27′49″W
289: /
276:105°28′19″W
1286:Categories
1105:Washington
1025:New Mexico
1020:New Jersey
895:California
632:References
618: (
583:pony truss
548: (
526:40°24′54″N
500:guardrails
491:pony truss
464:, 02001140
356:Bridge III
342: (
320:40°23′22″N
295: (
273:40°22′49″N
239:, 02001141
121:pony truss
1115:Wisconsin
1080:Tennessee
985:Minnesota
960:Louisiana
596:40°25′7″N
580:camelback
562:Bridge IV
488:Camelback
309:Bridge II
118:camelback
1271:Category
1100:Virginia
1050:Oklahoma
1030:New York
1005:Nebraska
995:Missouri
980:Michigan
970:Maryland
955:Kentucky
935:Illinois
910:Delaware
900:Colorado
890:Arkansas
462:02001139
400:Location
237:02001144
139:Bridge I
1217:Related
1120:Wyoming
1095:Vermont
1000:Montana
940:Indiana
920:Georgia
915:Florida
885:Arizona
875:Alabama
427: (
202: (
1055:Oregon
1010:Nevada
950:Kansas
925:Hawaii
880:Alaska
816:Topics
1187:Palau
1085:Texas
965:Maine
930:Idaho
419:Built
194:Built
95:US 34
1141:Guam
1090:Utah
1045:Ohio
945:Iowa
768:and
738:and
719:and
658:and
574:The
478:The
429:1933
422:1933
411:Area
204:1937
197:1937
186:Area
457:No.
446:MPS
232:No.
221:MPS
67:KML
31:in
1288::
698:.
692:.
681:^
640:^
871::
801:e
794:t
787:v
675:.
622:)
552:)
431:)
346:)
299:)
206:)
20:)
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
