{"id":3552,"date":"2025-09-08T13:55:11","date_gmt":"2025-09-08T11:55:11","guid":{"rendered":"https:\/\/eptisa.com\/proyectos\/construction-supervision-and-control-el-sillar-dual-carriageway\/"},"modified":"2025-09-19T03:16:19","modified_gmt":"2025-09-19T01:16:19","slug":"construction-supervision-and-control-el-sillar-dual-carriageway","status":"publish","type":"proyectos","link":"https:\/\/www.eptisa.com\/en\/projects\/construction-supervision-and-control-el-sillar-dual-carriageway\/","title":{"rendered":"Construction Supervision and Control &#8211; &#8220;El Sillar&#8221; Dual Carriageway"},"content":{"rendered":"\n<p>The &#8220;El Sillar&#8221; section, between km 100 and 128 of the <strong>Cochabamba-Santa Cruz<\/strong> highway, is one of the most critical areas of the Bolivian road network due to its complex geology, rugged topography and high rainfall. This 28 km infrastructure is a key part of the <strong>Bioceanic Corridor<\/strong>, connecting the country&#8217;s eastern and western borders and linking trade routes between <strong>Brazil, Peru, Chile and Bolivia<\/strong>. <\/p>\n\n<h5 class=\"wp-block-heading\"><strong>Main components:<\/strong><\/h5>\n\n<ul class=\"wp-block-list\">\n<li>4-lane dual carriageway (2 in each direction)<\/li>\n\n\n\n<li>1,600 m tunnel<\/li>\n\n\n\n<li>5.1 km of reinforced concrete retaining walls<\/li>\n\n\n\n<li>Elevation gain of over 1,300 m in 28 km<\/li>\n<\/ul>\n\n<h5 class=\"wp-block-heading\"><strong>Project objectives:<\/strong><\/h5>\n\n<ul class=\"wp-block-list\">\n<li>Guarantee permanent and safe transit all year round.<\/li>\n\n\n\n<li>Improving road safety conditions<\/li>\n\n\n\n<li>Reduce maintenance costs<\/li>\n\n\n\n<li>Promote regional and national integration<\/li>\n\n\n\n<li>Consolidate the inter-oceanic logistics corridor<\/li>\n<\/ul>\n\n<h5 class=\"wp-block-heading\"><strong>Role of Eptisa:<\/strong><\/h5>\n\n<p>We lead the <strong>integral supervision of the work<\/strong>, including the review and validation of the engineering design, quality control, physical-financial follow-up, environmental verification and contractual management. In addition, we guarantee the correct execution of the construction contract, regulatory compliance and technical efficiency in all phases of the project. <\/p>\n","protected":false},"featured_media":3554,"template":"","meta":{"_acf_changed":false},"actividad":[751,752],"area-geografica":[809],"etiqueta-proyecto":[879,886,931,935],"class_list":["post-3552","proyectos","type-proyectos","status-publish","has-post-thumbnail","hentry","actividad-transport","actividad-roads","area-geografica-america","etiqueta-proyecto-america","etiqueta-proyecto-construction-supervision","etiqueta-proyecto-transportation","etiqueta-proyecto-roads"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Construction Supervision and Control - &quot;El Sillar&quot; Dual Carriageway - Eptisa<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.eptisa.com\/en\/projects\/construction-supervision-and-control-el-sillar-dual-carriageway\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Construction Supervision and Control - &quot;El Sillar&quot; Dual Carriageway - Eptisa\" \/>\n<meta property=\"og:description\" content=\"The &#8220;El Sillar&#8221; section, between km 100 and 128 of the Cochabamba-Santa Cruz highway, is one of the most critical areas of the Bolivian road network due to its complex geology, rugged topography and high rainfall. This 28 km infrastructure is a key part of the Bioceanic Corridor, connecting the country&#8217;s eastern and western borders [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.eptisa.com\/en\/projects\/construction-supervision-and-control-el-sillar-dual-carriageway\/\" \/>\n<meta property=\"og:site_name\" content=\"Eptisa\" \/>\n<meta property=\"article:modified_time\" content=\"2025-09-19T01:16:19+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.eptisa.com\/wp-content\/uploads\/2025\/09\/Infraestructuras-Transporte-Carreteras-America-El-Sillar.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1600\" \/>\n\t<meta property=\"og:image:height\" content=\"1200\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.eptisa.com\\\/en\\\/projects\\\/construction-supervision-and-control-el-sillar-dual-carriageway\\\/\",\"url\":\"https:\\\/\\\/www.eptisa.com\\\/en\\\/projects\\\/construction-supervision-and-control-el-sillar-dual-carriageway\\\/\",\"name\":\"Construction Supervision and Control - \\\"El Sillar\\\" Dual Carriageway - Eptisa\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.eptisa.com\\\/en\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.eptisa.com\\\/en\\\/projects\\\/construction-supervision-and-control-el-sillar-dual-carriageway\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.eptisa.com\\\/en\\\/projects\\\/construction-supervision-and-control-el-sillar-dual-carriageway\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.eptisa.com\\\/wp-content\\\/uploads\\\/2025\\\/09\\\/Infraestructuras-Transporte-Carreteras-America-El-Sillar.jpg\",\"datePublished\":\"2025-09-08T11:55:11+00:00\",\"dateModified\":\"2025-09-19T01:16:19+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.eptisa.com\\\/en\\\/projects\\\/construction-supervision-and-control-el-sillar-dual-carriageway\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.eptisa.com\\\/en\\\/projects\\\/construction-supervision-and-control-el-sillar-dual-carriageway\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.eptisa.com\\\/en\\\/projects\\\/construction-supervision-and-control-el-sillar-dual-carriageway\\\/#primaryimage\",\"url\":\"https:\\\/\\\/www.eptisa.com\\\/wp-content\\\/uploads\\\/2025\\\/09\\\/Infraestructuras-Transporte-Carreteras-America-El-Sillar.jpg\",\"contentUrl\":\"https:\\\/\\\/www.eptisa.com\\\/wp-content\\\/uploads\\\/2025\\\/09\\\/Infraestructuras-Transporte-Carreteras-America-El-Sillar.jpg\",\"width\":1600,\"height\":1200},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.eptisa.com\\\/en\\\/projects\\\/construction-supervision-and-control-el-sillar-dual-carriageway\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.eptisa.com\\\/en\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Projects\",\"item\":\"https:\\\/\\\/www.eptisa.com\\\/en\\\/projects\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Construction Supervision and Control &#8211; 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