[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-649644-105":59,"doc-detail-649644-en":130},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":60,"data":61},"ok",{"site_id":62,"language":63,"slug":64,"title":65,"keywords":66,"description":67,"schema_data":68,"social_meta":123,"head_meta":125,"extra_data":127,"updated_unix":129},105,"en","standard-drawing-0038-standard-minimum-operating-clearances","Standard Drawing 0038 - Standard Minimum Operating Clearances","","Standard Drawing 0038 provides Union Pacific Railroad engineering standards for minimum operating clearances. It specifies vertical and horizontal clearance limits for structures and facilities relative to track center lines and the top of rail, including special rules for electrified versus non-electrified territory. Track notes define minimum track center-to-center spacing for main, side, industry, ladder, and team tracks, and clarify how vertical clearances are measured. Superelevation requirements add additional horizontal clearance allowances on the low rail side, and guidance sets approval and legal precedence for impaired clearances.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":40,"@type":76,"position":81},"https://docshare.wps.com/document/research-report/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/standard-drawing-0038-standard-minimum-operating-clearances/649644/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/standard-drawing-0038-standard-minimum-operating-clearances/649644.png","ImageObject",300,407,{"name":92,"@type":93},"OmBimo","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-30","2026-10-24",true,{"@type":102,"interactionType":103,"userInteractionCount":81},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What is the minimum vertical clearance above the top of rail for non-electrified territory?","Question",{"text":112,"@type":113},"For non-electrified territory, the minimum clearance is 27'-0\" above the top of rail.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"How are clearances affected in electrified territory?",{"text":117,"@type":113},"In electrified territory, the minimum vertical clearance is 35'-0\" above the top of rail.",{"name":119,"@type":110,"acceptedAnswer":120},"What additional clearance is required due to superelevation?",{"text":121,"@type":113},"An additional 4 1/4\" horizontal clearance at 20'-0\" above the top of rail must be allowed on the low rail side for each inch of superelevation, tapering to zero inches additional clearance at the top of rail.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},649644,1792803164,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":39,"category_name":40,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":81,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":81,"language":139,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":140,"faqs":141,"seo_title":142,"seo_description":67,"update_tm":129,"read_time":39},962090893581,"https://ap-avatar.wpscdn.com/davatar_276721f389ce27ea32af1340a28f341c","WRE LINES WITH LESS THAN 750 VOLTS IN NON-ELECTRIFIED TERRITORY  \n27'-0\"ABOVE TOP OF RAIL MINIMUM  \n(IN ELECTRIFIED TERRITORY-35'-0\"ABOVE TOP OF RAIL MINIMUM)  \nTHROUGH RAILROAD OWNED STRUCTURES AND FACILITIES  \nPAGE1OF3  \nSTD DWG  \n0038  \nGENERAL NOTES (SEE PAGE 3 FOR TRACK NOTES):  \n1.ALL STRUCTURES OR FACILITIES NOT SHOWN MUSTBE AT LEAST 9'-0\"FROM THE CENTER LINE OFTRACK AND AT LEAST 23'-4\"ABOVE THE TOP OFRAIL.  \n2.CLEARANCES FOR STRUCTURES OR FACILITIES ONCURVES MUST BE INCREASED LATERALLY ON EACHSIDE 11/2\"PER EACH DEGREE OF CURVATURE,EXTENDING TO 80'-0\"BEYOND THE END OF THECURVE.  \n3.ANY FACILITIES FALLING WITHIN THESEDIMENSIONS WILL BE CONSIDERED IMPAIREDCLEARANCE,SUBJECT TO AGREEMENT,AND MUSTBE APPROVED PRIOR TO CONSTRUCTION BY UNIONPACIFIC RAILROAD'S OFFICE OF THE CHIEFENGINEER OF DESIGN.  \n4.WHERE STATE OR LOCAL LAWS REQUIRE GREATERCLEARANCES THAN SHOWN HERE,THOSE LAWSSHALL PREVAIL.  \n5.SIGNS FOR INTERIOR MAIN TRACKS IN MULTIPLEMAIN TRACK TERRITORY WILL BE A MINIMUM OF  \n9'-0\"FROM CENTER OF TRACK.  \n\n| UNION PACIFIC RAILROAD  \u003Cbr>ENGINEERING STANDARDS   |  |\n| --- | --- |\n| STANDARD MINIMUM  \u003Cbr>OPERATING CLEARANCES   |  |\n| ADOPTED:SEP.21,2020  \u003Cbr>REVISED:  \u003Cbr>FILE NO.:0038   | STD DWG   |\n|  | 0038   |\n|  | PAGE 1OF 3   |\n\n| UNION PACIFIC RAILROAD  \u003Cbr>ENGINEERING STANDARDS   |  |\n| --- | --- |\n| STANDARD MINIMUM  \u003Cbr>OPERATING CLEARANCES   |  |\n| ADOPTED:SEP.21,2020  \u003Cbr>REVISED  \u003Cbr>FILE NO.:0038   | STD DWG   |\n|  | 0038   |\n|  | PAGE 20F3   |\n\nPAGE20F3  \n0038  \nSTD DWG  \nSIGNAL STRUCTURES AND SWITCH MACHINESTHROUGH RAILROAD OWNED STRUCTURES  \nPAGE30F3  \nSTD DWG  \n0038  \n# THROUGH INDUSTRY OWNED STRUCTURES AND FACILITIES\n\n## TRACK NOTES(SEE PAGE 1 FOR GENERAL NOTES):\n\nTRACK CENTERS:  \n1.TWO OR MORE MAIN TRACKS WILL BE A MINIMUM OF15'-0\"CENTER TO CENTER.SIDE TRACKSADJACENT TOA MAIN TRACK WILL BE A MINIMUM OF15'-0\"CENTER TO CENTER.  \n2.ANY TWO OR MORE SIDE OR INDUSTRY TRACKS WILLBE A MINIMUM OF 14'-0\"CENTER TO CENTER.  \n3.LADDER TRACKS AND ANY ADJACENT TRACK WILL BE AMINIMUM OF 20'-0\"CENTER TO CENTER.  \n4.TEAM TRACKS IN PAIRS MAY BE A MINIMUM OF13'-0\"CENTER TO CENTER.  \n5.ELECTRIFIED TERRITORY REFERS TO TRACKS WHEREELECTRIC LOCOMOTIVES OPERATE.  \n6.ALL VERTICAL CLEARANCES ARE MEASURED FROMTHE TOP OF HIGHEST RAIL.  \n7.FOR INDUSTRY OWNED STRUCTURES AND FACILITIES,ALL HORIZONTAL CLEARANCES SHALL BE MAINTAINEDFROM THE TOP OF RAIL.  \n## SUPERELEVATION:\n\n1.AN ADDITIONAL 41/4\"HORIZONTAL CLEARANCE AT20'-0\"ABOVE TOP OF RAIL MUST BE ALLOWED ONTHE LOW RAIL SIDE FOR EACH ONE INCH OFSUPERELEVATION TAPERING TO ZERO INCHESADDITIONAL CLEARANCE AT THE TOP OF RAIL.UNION PACIFIC RAILROADENGINEERING STANDARDSSTANDARD MINIMUMOPERATING CLEARANCESSTD DWG0038PAGE 3 OF3","cbCaiqatYT8RHhBJ","https://ap.wps.com/l/cbCaiqatYT8RHhBJ","pdf",376385,"English","# General Notes\n## Track Notes\n## Superelevation","[{\"question\":\"What is the minimum vertical clearance above the top of rail for non-electrified territory?\",\"answer\":\"For non-electrified territory, the minimum clearance is 27'-0\\\" above the top of rail.\"},{\"question\":\"How are clearances affected in electrified territory?\",\"answer\":\"In electrified territory, the minimum vertical clearance is 35'-0\\\" above the top of rail.\"},{\"question\":\"What additional clearance is required due to superelevation?\",\"answer\":\"An additional 4 1/4\\\" horizontal clearance at 20'-0\\\" above the top of rail must be allowed on the low rail side for each inch of superelevation, tapering to zero inches additional clearance at the top of rail.\"}]","Standard Drawing 0038 - Standard Minimum Operating Clearances | PDF"]