Engineers, Land Surveyors, and Architects
Our experienced team of professionals is ready to assist with your project
J. Lloyd Herrera, PE
Lloyd Herrera is the co-founder of HCL Engineering & Surveying, LLC (HCL), established in 1999. Lloyd is primarily responsible for business development, marketing, contract negotiations, and operations for HCL. His areas of specialty include roadways, airport facilities, light rail infrastructure, site development, utility design, and water resource design, project management, contract oversight, and construction administration. Lloyd provides project management, design support, and master planning for major transportation projects such as the $1.2 billion Central 70 Project, $2.03 billion RTD Eagle P3 project (a part of the RTD FasTracks project) and major highway projects for the Colorado Department of Transportation. He is passionate about giving back to the community through providing high-quality, well-engineered, sustainable projects.
Julian Sisneros, PLS
Director of Surveying and Mapping
Julian’s 19 years of diverse survey experience includes Public Land Survey System (PLSS) boundary surveys, route surveys, topographic surveys, American Land Title Association (ALTA) Surveys, static control surveys, aerial photo control surveys, utility as-built collection, and Improvement Location Certificate (ILC) surveys, among others. Julian is a hands-on manager who personally ensures that each and every survey meets our clients’ needs. He is also experienced with CDOT Standards and 3D Laser Scanning techniques. His experience includes surveying for new and existing buildings, roads, freeways, trails and parks, airports (airside and landside), schools, and industrial sites. Julian will ensure that your survey project is handled quickly and accurately.
Jason Dahnke, PE
Director of Structural Engineering
Jason brings 20 years of extensive experience analyzing, designing, and evaluating structural engineering projects in the building, civil, and transportation sectors. He is an experienced construction supervisor and enjoys taking care of client’s projects from design through completion. Jason has designed bridges, retaining walls, underpasses, culverts, residential, commercial, and industrial structures, along with water/wastewater treatment facilities. He also performs assessments, renovations, and modifications of existing bridges, buildings and other structures. Jason’s knowledge of different governing building and design codes provides our clients with the assurance that their project is performed accurately and safely, and meets all codes.