Rating:
50217
{53}%
2 votes
NJT - HX Draw
Description
The Heel trunnion bascule was designed with the machinery installed on the hip end of the truss while the struts pinned to the counterweight bridge tower with brackets and collar bearings, the railings of stairways are on the truss span to the machinery. The first type was constructed in Massachusetts in 1910 for the New York New Haven & Hartford railroad a double track 160 foot span crossing the Cape Cod Canal, duplicate of this first type is the bridge in Ashtabula OH crossing the Ashtabula River a 160 foot span was for the Lakeshore & Michigan Southern railroad owns by the Norfolk Southern railroad constructed in 1911 ,the first 4 track bridge built in 1915 a 118 foot span for the Lakeshore & Michigan Southern railroad now owned by Norfolk Southern railroad crossing the Portage River in Port Clinton OH a single track bascule bridge built in 1911 for the Northern Pacific railroad crossing the Duwamish River in Seattle WA. Two bridges in south side Chicago IL crossing the Calumet River for the Chicago & Western Indiana built in 1912 a 186 foot span was previously present and the Longest 235 foot bridge built between 1912 and 1914 for the Baltimore & Ohio railroad. In Peoria IL a 160 bridge was constructed in 1911 for the Peoria & Pekin Union railroad crossing the Illinois River, Erie railroad bridge constructed in Cleveland Ohio in 1911 crossing the Cuyahoga River span length 180 foot. Same company was constructed in New Jersey a 151 foot crossing the Hackensack River used for the New Jersey Transit Line. A 187 foot span built in 1912 crossing the West Basin in California for the Southern Pacific and Pacific Electric railroad, the 3 last bridges were constructed in Canada the first double deck 186 foot bridge in Ontario for the Canadian Pacific railroad and a 129 foot bridge in Manitoba for the Canadian Transcontinental railroad , in Michigan between Canada the longest 336 double leaf bridge built in 1914 in Sault Saint Marie for the Canadian Pacific railroad. The horse power use of the bridge depending of the amount of power of 2 65 ac motors to dc motors of 82 horsepower, 75 horsepower ,and 25 horsepower, two operating towers are present one operates the bascule bridge and the other the counterweight, the bridge is decelerated in the raised position and closed position. The collar bearings that turn on the pins that attaches to the counterweight bridge tower which engages the rack and pinion on the pinion carrier on the hip of the truss with the operating machinery, when the span is raised the operating strut is carried with the bascule span shafting to the center line of the span bridge causing the span heavy in the open position in the lowered position the counterweight is heavy. Some bridges are controlled with switches elsewhere in housed operator's cabins or towers away from the bridge and some housed next to the bridge. the bridge operates electrically with motors mention earlier to decelerate the span of reduced speed to the fully raised position and the closed position. Joseph B. Strauss of the Strauss Bascule Bridge Company of Chicago IL is the important key inventor who invented three types of trunnion bascule bridges in his career in many parts of the world.
Update Log
- March 2, 2017: New photo from Douglas Butler
- August 26, 2016: New photos from Douglas Butler
- June 4, 2016: New photo from Douglas Butler
- February 22, 2016: New photo from Douglas Butler
- January 26, 2016: New photo from Douglas Butler
- January 22, 2016: New photo from Douglas Butler
- December 21, 2015: New Street View added by Douglas Butler
- December 19, 2015: Updated by Douglas Butler: Added info
- November 4, 2015: New photos from Douglas Butler
- August 17, 2015: New photos from Douglas Butler
- June 30, 2015: New photo from Douglas Butler
- March 20, 2015: Updated by Luke: Added photographs + changed name
- March 20, 2015: New photo from Douglas Butler
- February 25, 2015: New video from Douglas Butler
- February 22, 2015: New photo from Douglas Butler
- February 21, 2015: New photos from Douglas Butler
- February 20, 2015: New photos from Douglas Butler
- September 4, 2014: New photo from Douglas Butler
- August 20, 2014: New Street View added by Douglas Butler
- August 10, 2014: New photo from Douglas Butler
- July 29, 2014: New photo from Douglas Butler
- December 12, 2013: New photos from Douglas Butler
- December 11, 2013: New photos from Douglas Butler
- August 26, 2013: New photos from Douglas Butler
- July 13, 2013: Photo imported by Dave King
- September 26, 2012: Updated by Luke Harden: Added categories "New Jersey Transit", "Navigable waterway", "Hackensack River"
- November 15, 2011: Added by Nathan Holth
In this Information of the Engineering News Vol 67 pages 830 to 833 the heel trunnion early designs were explained about the constructions from 1910 to 1914.