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It establishes authority, purpose, control of work and materials, and legal responsibilities to the public. The manual outlines general design procedures, survey and plan set obligations, graphic and utility location standards, easement requirements, and roadway design for pavements, geometrics, culverts, structures, and signage. 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Drainage coverage includes hydrology and hydraulics, outfall restrictor design, detention facilities, maintenance responsibility, and drainage system design elements such as streets, inlets, storm drains, channels and ditches, and bridges and culverts.","https://schema.org",{"og:url":83,"og:type":123,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":125,"canonical":83},"index,follow",{"doc_id":127,"site_id":62},649598,1792884461,{"code":4,"msg":5,"data":130},{"doc_id":127,"user_id":131,"nickname":92,"user_avatar":132,"doc_module":4,"category_id":39,"category_name":40,"doc_title":65,"doc_description":67,"doc_content":133,"file_id":134,"file_url":135,"file_type":136,"file_size":137,"view_count":14,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":138,"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":143,"read_time":144},687207412472,"https://ap-avatar.wpscdn.com/davatar_155a257f0dc6eb9ab79c44ca47cae57d","|  |\n| --- |\n| WASHINGTON COUNTY\u003Cbr>DESIGN AND CONSTRUCTION STANDARDS MANUAL\u003Cbr>Approved by Commissioners Court on\u003Cbr>March 31st 2026\u003Cbr>Washington County Engineering and Development Services |\n|  |\n\nTable of Contents  \nSection 1 – General Provisions.................................................................................................................3  \n1.01 Authority ............................................................................................................................. 3  \n1.02 Purpose ................................................................................................................................ 3  \n1.03 Control of Work .................................................................................................................. 3  \n1.04 Control of Materials ............................................................................................................ 4  \n1.05 Legal Relations and Responsibilities to the Public ............................................................. 5  \nSection 2-General Design Procedures ................................................................................................7  \n2.01 Preliminary Research Requirements ................................................................................... 7  \n2.02 Preliminary Design Requirements ...................................................................................... 7  \n2.03 Final Design Requirements ................................................................................................. 7  \n2.04 Plan Submittal Requirements .............................................................................................. 7  \n2.05 Final Plan Approval ............................................................................................................ 8  \n2.06 “As Built” Requirements .................................................................................................... 8  \nSection 3-General Design and Plan Requirements ...........................................................................9  \n3.01 Survey Requirements .......................................................................................................... 9  \n3.02 Construction Plan Set Requirements................................................................................... 9  \n3.03 Graphic Requirements....................................................................................................... 10  \n3.04 General Utility Locations .................................................................................................. 11  \n3.05 Easement Requirements .................................................................................................... 12  \nSection 4-Road Design (Pavements and Geometrics) ................................................................... 13  \n4.01 General .............................................................................................................................. 13  \n4.02 County Engineer Review Authority.............................................................................. 13  \n4.03 Roadway Design Standards .............................................................................................. 13  \n4.04 Pavement Design and Construction .................................................................................. 18  \n4.05 Roadway Culverts ............................................................................................................. 22  \n4.06 Major Structures and Bridges ........................................................................................... 23  \n4.07 Construction Requirements ............................................................................................... 23  \n4.08 Signage .............................................................................................................................. 29  \nSection 5-Traffic Impact Analysis","cbCaijGyyITZ2ZSG","https://ap.wps.com/l/cbCaijGyyITZ2ZSG","pdf",1845402,65,"English","# Section 1 – General Provisions\n## 1.01 Authority\n## 1.02 Purpose\n## 1.03 Control of Work\n## 1.04 Control of Materials\n## 1.05 Legal Relations and Responsibilities to the Public\n# Section 2-General Design Procedures\n## 2.01 Preliminary Research Requirements\n## 2.02 Preliminary Design Requirements\n## 2.03 Final Design Requirements\n## 2.04 Plan Submittal Requirements\n## 2.05 Final Plan Approval\n## 2.06 “As Built” Requirements\n# Section 3-General Design and Plan Requirements\n## 3.01 Survey Requirements\n## 3.02 Construction Plan Set Requirements\n## 3.03 Graphic Requirements\n## 3.04 General Utility Locations\n## 3.05 Easement Requirements\n# Section 4-Road Design (Pavements and Geometrics)\n## 4.01 General\n## 4.02 County Engineer Review Authority\n## 4.03 Roadway Design Standards\n## 4.04 Pavement Design and Construction\n## 4.05 Roadway Culverts\n## 4.06 Major Structures and Bridges\n## 4.07 Construction Requirements\n## 4.08 Signage\n# Section 5-Traffic Impact Analysis\n## 5.01 Traffic Worksheet\n## 5.02 Traffic Impact Analyses\n# Section 6 – Drainage\n## 6.01 Hydrology\n## 6.02 Hydraulics\n## 6.03 Outfall Restrictor Design\n## 6.04 Detention Facilities\n## 6.05 Maintenance Responsibility\n# Section 7 – Drainage System Design\n## 7.01 Streets\n## 7.02 Inlets\n## 7.03 Storm Drains (Closed Systems)\n## 7.04 Channels and Ditches\n## 7.05 Bridges and Culverts","[{\"question\":\"What does the manual define under general provisions?\",\"answer\":\"It sets out authority, purpose, control of work, control of materials, and legal relations and responsibilities to the public.\"},{\"question\":\"What design and plan submission steps are required?\",\"answer\":\"It requires preliminary research and design, final design requirements, plan submittal requirements, final plan approval, and “as built” requirements.\"},{\"question\":\"Which topics are covered for roadway and drainage?\",\"answer\":\"Roadway coverage includes pavements and geometrics, pavement design and construction, roadway culverts, major structures and bridges, construction requirements, and signage. Drainage coverage includes hydrology and hydraulics, outfall restrictor design, detention facilities, maintenance responsibility, and drainage system design elements such as streets, inlets, storm drains, channels and ditches, and bridges and culverts.\"}]","Washington County Design and Construction Standards Manual - Approved by Commissioners Court - March 31st 2026 | PDF",1792802688,164]