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The document defines how as-builts revise the original as-designed Contract drawings to show additions, deletions, and construction changes driven by design modifications, site conditions, material availability, and contractor requests. It details redline concepts, colors, delta triangle revision tracking, required Contractor as-built stamps, and how record drawings, record surveys, and shop drawings are incorporated and reviewed prior to Owner acceptance.",{"@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/alaska-railroad-corporation-as-built-standard-preparation-guidance/649072/",{"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/alaska-railroad-corporation-as-built-standard-preparation-guidance/649072.png","ImageObject",300,407,{"name":92,"@type":93},"Adam","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-11-01","2026-10-23",true,{"@type":102,"interactionType":103,"userInteractionCount":24},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What is the purpose of an as-built drawing package?","Question",{"text":112,"@type":113},"It provides an official record of project conditions after construction is completed, revising the original as-designed contract drawings and specifications to show additions, deletions, and other changes.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"How should redlines be marked on as-built drawings?",{"text":117,"@type":113},"Use three base colors: red for items to be added, green for items to be deleted, and blue for comments not to be added.",{"name":119,"@type":110,"acceptedAnswer":120},"How are revisions identified using delta triangles?",{"text":121,"@type":113},"Markups include a delta triangle near the revised section for all changes. If multiple items within a table or view are changed or redrawn, a single delta triangle may be placed near the title; otherwise, place one near each changed item, with an identification number matching the issue block entry.","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},649072,1792797178,{"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":24,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":19,"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":52},1374404737137,"https://ap-avatar.wpscdn.com/davatar_155a257f0dc6eb9ab79c44ca47cae57d","Alaska Railroad Corporation: As-Built Standard  \nPurpose  \nThe purpose of this document is to provide guidance on the preparation of high quality as‐built drawings and specifications that exhibit as‐built conditions of the project. As‐builts are an official record of the project at the time construction is completed. The original “as‐designed” Contract drawings and specifications are revised to show all additions, deletions, and other changes made during construction of the project. Changes may come from necessary design modifications, differing site conditions, material availability, Contractor‐requested changes, requests for information, and many other reasons. Accurate as‐builts are important for project operation and maintenance and future modifications, particularly for project features which are hidden from view.  \nTerms  \nRedline  \nThe process of marking up a drawing or specification that reflects any modifications.  \nAs-Built Drawings  \nThe Contractor‐submitted redlined drawings that show the as‐built condition of the project drawings.  \nShop Drawings  \nDrawings that come from a Contractor, supplier, manufacturer, subcontractor, consultants, or fabricator. Shop Drawings are typically required for pre‐fabricated components. The Shop Drawing is the manufacturer’s or Contractor’s drawn version of information shown in the Contract documents. The Shop Drawing normally shows more detail than the Contract documents and is drawn to explain the fabrication and installation of the items.  \nSpecification Redlines  \nThe Contractor‐redlined specifications that show all changes in the Contract Special Conditions and Supplemental Conditions, which cannot reasonably be captured in the As‐Built Drawings.  \nRecord Drawings  \nAfter the Owner approves the Contractor‐submitted As‐Built Drawings, they become the Record Drawings.  \nRecord Survey  \nIf the project requires of the Contractor a final survey of the Project as outlined in the Contract, this is hereby referred to as a Record Survey.  \nAs-Built Drawings  \nThree base colors should be used to markup (also known as “redline”) the drawings to show as‐built conditions: red, green, and blue. Their uses are described below and an example shown in Figure 1 ‐ As‐ Built Example.  \n• Red – Items to be added to the drawing.  \n• Green – Items to be deleted from a drawing.  \n• Blue – Comments that are not to be added to the drawing.  \nFigure 1-As-Built Example  \nTo identify revisions, markups will include a delta triangle near the revised section of the drawing for all changes (see Figure 2 ‐ Delta Triangle Example) . When several items in a table or drawing view (e.g., sections, details, plans, profiles, elevations, etc. ) are changed or completely redrawn, a single delta triangle may be placed near the title for the table or drawing view. This same method may be used for general revisions to entire drawing sheets when a major portion of the drawing is changed. When only a few items are revised, added or deleted, a delta triangle will be placed near each item requiring revision. Each delta triangle will contain an identification number that corresponds to an entry in the issue block that describes the revision, as in Figure 3 ‐ Delta Triangle Entries.  \nFigure 2-Delta Triangle Example  \nFigure 3-Delta Triangle Entries  \nChanges to be captured in As‐Built Drawings include, but are not limited to:  \n• All changes of details  \n• All changes of dimensions  \n• All changes in levels  \n• Any additions  \n• Updates to notes  \n• Utilities, existing and diverted  \nEach drawing should have an As‐Built stamp from a Contractor employee which includes whether or not changes or required, name of the employee, signature of the employee, company, and date. An example is shown in Figure 4 ‐ Typical As‐Built Stamp. Each drawing shall contain a stamp, even if there are no changes to the drawing.  \nFigure 4-Typical As-Built Stamp  \nAs-Built Specifications  \nAny changes to the Contract specifications that cannot be re","cbCainxhhYX6Kauy","https://ap.wps.com/l/cbCainxhhYX6Kauy","pdf",404189,"English","# Purpose\n# Terms\n# Redline Colors and Markup Method\n# Revision Identification (Delta Triangles)\n# As-Built Drawings Requirements\n# As-Built Specifications\n# Record Survey\n# Shop Drawings Incorporation\n# Submittal and Acceptance Process","[{\"question\":\"What is the purpose of an as-built drawing package?\",\"answer\":\"It provides an official record of project conditions after construction is completed, revising the original as-designed contract drawings and specifications to show additions, deletions, and other changes.\"},{\"question\":\"How should redlines be marked on as-built drawings?\",\"answer\":\"Use three base colors: red for items to be added, green for items to be deleted, and blue for comments not to be added.\"},{\"question\":\"How are revisions identified using delta triangles?\",\"answer\":\"Markups include a delta triangle near the revised section for all changes. If multiple items within a table or view are changed or redrawn, a single delta triangle may be placed near the title; otherwise, place one near each changed item, with an identification number matching the issue block entry.\"}]","Alaska Railroad Corporation - As-Built Standard - Preparation Guidance | PDF"]