[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"doc-seo-292515-105":3,"detail-sidebar-cat-0-en-105":81,"doc-detail-292515-en":131},{"code":4,"msg":5,"data":6},0,"ok",{"site_id":7,"language":8,"slug":9,"title":10,"keywords":11,"description":12,"schema_data":13,"social_meta":74,"head_meta":76,"extra_data":78,"updated_unix":80},105,"en","oregon-standard-drawings-guardrail-and-metal-median-barrier-29-rail-height","Oregon Standard Drawings - Guardrail and Metal Median Barrier (29\" Rail Height)","","Engineering standard drawing package detailing guardrail and metal median barrier construction. Includes notes on rail element types (W-beam and Thrie beam), rail height measurements from final paved surface, post and bolt/nut arrangement, splice bolt hardware, drainage curb alignment, and lap direction relative to adjacent traffic. Provides installation and adjustment guidance for initial installation and future adjustment, including alternate procedures at bridge ends and materials compatibility requirements per Oregon Standard Specifications.",{"@graph":14,"@context":73},[15,34,56],{"@type":16,"itemListElement":17},"BreadcrumbList",[18,23,27,31],{"item":19,"name":20,"@type":21,"position":22},"https://docshare.wps.com","Home","ListItem",1,{"item":24,"name":25,"@type":21,"position":26},"https://docshare.wps.com/document/","Document",2,{"item":28,"name":29,"@type":21,"position":30},"https://docshare.wps.com/document/research-report/","Research & Report",3,{"item":32,"name":10,"@type":21,"position":33},"https://docshare.wps.com/document/oregon-standard-drawings-guardrail-and-metal-median-barrier-29-rail-height/292515/",4,{"url":32,"name":10,"@type":35,"image":36,"author":41,"headline":10,"publisher":44,"fileFormat":47,"inLanguage":8,"description":12,"dateModified":48,"datePublished":49,"encodingFormat":47,"isAccessibleForFree":50,"interactionStatistic":51},"DigitalDocument",{"url":37,"@type":38,"width":39,"height":40},"https://docshare.wps.com/thumbnails/oregon-standard-drawings-guardrail-and-metal-median-barrier-29-rail-height/292515.png","ImageObject",300,407,{"name":42,"@type":43},"Blaney","Person",{"url":19,"name":45,"@type":46},"DocShare","Organization","application/pdf","2026-10-29","2026-09-17",true,{"@type":52,"interactionType":53,"userInteractionCount":55},"InteractionCounter",{"@type":54},"ViewAction",11,{"@type":57,"mainEntity":58},"FAQPage",[59,65,69],{"name":60,"@type":61,"acceptedAnswer":62},"How is rail height measured for these details?","Question",{"text":63,"@type":64},"Rail height is measured from the final paved surface at the face of the rail (typical all types). A 1\" ± tolerance note is also provided.","Answer",{"name":66,"@type":61,"acceptedAnswer":67},"What governs post bolts and future adjustment of threaded portions?",{"text":68,"@type":64},"Post bolt threads must be set after assembly for wrench removal only. When required by the plans, post bolts extend beyond tightened nuts within stated limits, and threads should be adjusted to prevent loosening.",{"name":70,"@type":61,"acceptedAnswer":71},"How should guardrail materials and drainage alignment be handled?",{"text":72,"@type":64},"All materials must comply with current Oregon Standard Specifications. Drainage curb alignment is specified to match the face of the guardrail when required by the plans.","https://schema.org",{"og:url":32,"og:type":75,"og:title":10,"og:site_name":45,"og:description":12},"article",{"robots":77,"canonical":32},"index,follow",{"doc_id":79,"site_id":7},292515,1789652373,{"code":4,"msg":82,"data":83},"success",[84,88,92,96,101,106,111,115,120,123,127],{"id":22,"doc_module":4,"doc_module_name":25,"category_name":85,"show_sort_weight":86,"slug":87},"Story & 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height measured from final paved surface  \nat face of rail to top of rail(Typ.all types).  \n2.Final paved surfacing to extend to face of post.  \nEdge of block or postSplice bolt &nutBack of post(8 per splice)(4 per end splice)  \n3.Drainage curb alignment same as face of guardrail.  \nWasherPost bolt &nutRailmembers(At ②each post)  \n# INITIAL INSTALLATION\n\n1-16d galvanized(Steel or wood)flat head nail each sidethrough top of blockBlock (Used onTypes 2A,3&4)  \nINITIAL INSTALLATION  \n2\"top of block  \nto top of post  \n3\"top of block  \n20-JUL-2020  \nASSEMBLY DETAILS  \nto top of post  \n(RELATION OF PARTS)  \n# NOTES:\n\n1.When required by the plans,post bolts to extend beyondthe tightened nuts within limits of4\"to Y2\".  \nTABLE OF POST SPACING  \nALTERNATE  \n2.When steel posts are used see \"APPURTENANCES\"formodified bolt detail,Std.Dwg.RD415.  \n1  \nTYPE  \n4  \n3  \n2A  \nINITIAL INSTALLATION  \n6'-3\"  \n3'-1Y₂\"  \n12'-6\"  \n6'-3\"  \nSPACING  \nFUTURE ADJUSTMENT  \n3.All post bolt threads to be set after assembly for wrenchremoval only.  \nOR FUTURE ADJUSTMENT  \nNORMAL RAIL ELEMENT DATA  \nTYPE 1  \nRail  \nTYPES 2A&3 GUARDRAIL  \nType  \nThkn.*  \nEffective Lengths  \nRAIL AFTER OVERLAY  \nGUARDRAIL  \nFITTINGS  \n0.105”&0.135\"  \n1,2A,3  \n6.25',12.5',25'  \nW beam  \n(Adjust as shown)  \n(See general note 2)  \n0.105”&0.135\"  \nThrie beam  \n4  \n6.25',12.5',25'  \n(Use restricted to  \n(For Type 3 use double thickness(2)rail elements)  \nTYPE 4 GUARDRAIL  \nnon-roadway applications)  \n*Base metal thkn.nom.(Before galv.)  \nRD400.dgn  \n| NOTE:  \u003Cbr>Clearance to be 1%6\"at rail splice for bridge expansion joints.   |\n| --- |\n\n| NOTE:  \u003Cbr>Median barrier post spacing 6'-3\".  \u003Cbr>See end construction for variations.   |\n| --- |\n\n1.See appropriate guardrail standard  \n\n| CHANNEL RAIL AND SPLICE PLATE  \u003Cbr>METAL MEDIAN BARRIER  \u003Cbr>(METAL MEDIAN BARRIER)   |  |  |  |  |\n| --- | --- | --- | --- | --- |\n| Deck expansion joint  \u003Cbr>3\"(Splice bolts)  \u003Cbr>3\"(Splice bolts)  \u003Cbr>Expansion end of bridge span  \u003Cbr>fixed end of bridge span  \u003Cbr>Rail splice-  \u003Cbr>Channel rail member with expansion slots-  \u003Cbr>Extend toward bridge deck expansion joint-  \u003Cbr>4 Symmetrical about  \u003Cbr>Post  \u003Cbr>Extension-  \u003Cbr>Extension-  \u003Cbr>Block  \u003Cbr>Variable  \u003Cbr>Extg.post and  \u003Cbr>of slot  \u003Cbr>Rail splice ①②  \u003Cbr>of slot  \u003Cbr>splice bolt slot  \u003Cbr>Corr.rail member with expansion`slots  \u003Cbr>Extg.splice bolt slot-  \u003Cbr>Norm.post spacing 6'-3\"  \u003Cbr>Norm.post spacing 6'-3\"  \u003Cbr>CHANNEL RAIL AND  \u003Cbr>CORRUGATED RAIL  \u003Cbr>SPLICE PLATE  \u003Cbr>NOTES:  \u003Cbr>Rail expansion  \u003Cbr>①Place 2-Y32\"polytetrafluoroethylene (TFE)sheets between  \u003Cbr>PLAN  \u003Cbr>corrugated rail members.The sheets shall be 12Z\"×1'-7\".  \u003Cbr>②Adiust nuts to provide a sliding fit and set threads to prevent loosening.  \u003Cbr>METAL MEDIAN BARRIER/SHOULDER GUARDRAIL INSTALLATION AT BRIDGE DECK EXPANSION JOINT   | GENERAL NOTES FOR ALL DETAILS ON THIS  \u003Cbr>SHEET:   |  |  |  |\n|  | drawing(s)for details not shown.  \u003Cbr>2.Use \"Alternate Initial Installation\",at  \u003Cbr>bridge ends (See Std.Dwg.RD440),  \u003Cbr>adjacent to P.C.C.pvmt.for temporary  \u003Cbr>guardrail,to match existing guardrail,  \u003Cbr>for Type 1 rail or as directed.  \u003Cbr>3.See Std.Dwg.RD701 for drainage curbs,  \u003Cbr>where required.  \u003Cbr>4.Lap guardrail in direction of adjacentt  \u003Cbr>traffic.   | The selection and use of this  \u003Cbr>Standard Drawing,while  \u003Cbr>designed in accordance with  \u003Cbr>generally accepted engineering  \u003Cbr>principles and practices,is the  \u003Cbr>sole responsibility of the user  \u003Cbr>and should not be used without  \u003Cbr>first consulting a Registered  \u003Cbr>Professional Engineer.   |  | All materials shall be in accordance with  \u003Cbr>the current Oregon Standard Specifications.   |\n|  |  |  |  | OREGON STANDARD DRAWINGS  \u003Cbr>GUARDRAIL AND  \u003Cbr>METAL MEDIAN BARRIER  \u003Cbr>(29\"RAIL HEIGHT)  \u003Cbr>2024   |\n|  |  |  |  | DATE  \u003Cbr>REVISION DESCRIPTION   |\n|  |  |  |  |  |\n|  |  |  |  | CALC.  \u003Cbr>BSAE_  \u003Cbr>RD4","cbCaivgAgBeYtgx9","https://ap.wps.com/l/cbCaivgAgBeYtgx9","pdf",11288100,54,"English","# NOTES\n## INITIAL INSTALLATION\n## ASSEMBLY DETAILS (RELATION OF PARTS)\n## TABLE OF POST SPACING\n## NORMAL RAIL ELEMENT DATA\n## GENERAL NOTES FOR ALL DETAILS ON THIS SHEET\n## CHANNEL RAIL AND SPLICE PLATE METAL MEDIAN BARRIER/SHOULDER GUARDRAIL INSTALLATION AT BRIDGE DECK EXPANSION JOINT","[{\"question\":\"How is rail height measured for these details?\",\"answer\":\"Rail height is measured from the final paved surface at the face of the rail (typical all types). A 1\\\" ± tolerance note is also provided.\"},{\"question\":\"What governs post bolts and future adjustment of threaded portions?\",\"answer\":\"Post bolt threads must be set after assembly for wrench removal only. When required by the plans, post bolts extend beyond tightened nuts within stated limits, and threads should be adjusted to prevent loosening.\"},{\"question\":\"How should guardrail materials and drainage alignment be handled?\",\"answer\":\"All materials must comply with current Oregon Standard Specifications. Drainage curb alignment is specified to match the face of the guardrail when required by the plans.\"}]","Oregon Standard Drawings - Guardrail and Metal Median Barrier (29\" Rail Height) | PDF",136]